Showing posts with label USN. Show all posts
Showing posts with label USN. Show all posts

Night Attack: USS Sealion (SS-315) Sinks the Japanese Battleship Kongo

 

Sealion later in the war flying her victory pennants.

This story begins in the year 1944, almost at the end of that year. The submarine Sealion is in Pearl Harbor and I am an electrician's mate on board her.

We have just returned from our two weeks' rest and recreation at the Royal Hawaiian Hotel in Honolulu. The ship looks clean and ready to go after the relief crew worked over the machinery while we were relaxing from the last war patrol.

Everyone is running around like mad trying to get their personal gear stowed and also getting the machinery tested because we will be going out tomorrow for a test dive. We know we have two weeks of grinding work ahead of us, getting the ship ready to go to sea and also practicing for the time when our job really counts.

The two weeks have gone by fast, though of course not fast enough. Everyone is grouchy and tired, but even so all have tried to help one another as much as possible. The new men have come along fine in their assigned jobs. It has been a hard two weeks with diving, surfacing, battle stations, practice fire drills, abandon ship, and demolition. If you do not have work to do or are not on watch, you "hit the sack," as we say in the Navy.

Just about the time you fall off to sleep, you hear the general announcing system, "Station the Radar Tracking Party," then pretty soon, "Battle Stations Night Attack," with the general alarm sounding, then you and everyone else all run for your battle stations.

My battle station on the Sealion was Senior Controllerman in the Maneuvering Room. This goes on day and night: "Battle Stations Submerged… Battle Station Surface," "Battle Stations Night Attack."

During the two weeks of grueling preparation, just after we made a deep dive, word was passed, "Fire in the control room." Our drills paid off then—everyone did his job with dock-like precision. It was a bad electrical fire, but in minutes it was extinguished.

The boat filled with smoke from the fire and breathing was almost impossible. The surfacing alarm sounded, and in a few seconds we popped to the surface, and men could be seen streaming from the hatches, choking and coughing, with tears streaming from their eyes. It was wonderful to fill your lungs with fresh air again.

Now the training is over, all minor equipment failures are taken care of, the new men are accepted as part of the crew, the Captain is satisfied with the performance of the men, the fire is forgotten, and the ship and crew are ready for a war patrol. Everyone is anxious, high spirited, a little excited, awaiting orders; it is rumored we leave tomorrow.

We are up and busy this morning, it is a grand looking day. The crew is called to quarters, names called and answered to. Then the Chief of the Boat tells us if we leave ship, to give our names to the anchor watch and tell where we are going. We know now we will be getting underway shortly. We do not know just where we are going as yet. Just about everyone is busy checking his gear or getting a few things that were missed yesterday.

In a few hours we are called to quarters again, the last time until we hit our next port. A thrill goes through you. This is it; we will be putting out to the wide open sea in just a few minutes. The crew is all on board, the maneuvering watch is stationed, and then a car pulls up to the gangway. Everyone comes to attention as the Admiral comes aboard and orders are given to our Captain. The Admiral shakes hands with the Captain and wishes him and his ship good hunting. The Captain comes on the bridge and gives the order to get underway.

There are a few sailors on the pier, buddies seeing us off; there is no band or cheering, we just throw the lines off, and she slowly moves away from the pier. A few sailors give a kind of salute to their buddies, and maybe wonder if she will ever return, and I kind of wonder that myself.

Our first stop will be at Midway Island in order to top off with fuel. It is windy the day we pull into Midway, cloudy and cold. There is the usual commotion with coming into port. Fresh fruits are brought on board. The engineers are busy getting fuel on, and there are a few odd jobs that have to be done before we get underway again. We stay at Midway about a day and a half. In the meantime, a sub comes in off a war patrol with her battle flag flying.

The crew is called to quarters once again, and the Captain has a few words to say to us. His talk went something like this:

"Men, our orders this time takes us into a really hot area. There is a lot of enemy shipping and plenty dangerous. We will have to be on the job every second. We are in the big leagues now and cannot afford to make mistakes.

"I would like to read you a message from ComSubPac to all submarines. During the patrol of the USS Salmon she was being depth charged by three anti-submarine vessels; they had the Salmon pinned down between them. She was in very bad shape, her after torpedo room hatch was blown off, the main induction was flooded, one engine was out of commission, both air compressors were out, and she was taking on water. She did not stop fighting even when it looked like the end. They made a battle surface and threw everything they had at them, even to some spuds that was laying around. They think they may have sunk one of the enemy ships and damaged another. She made her escape into a rain squall, and three other subs fought a rearguard action for her, and planes came out and escorted her in to the nearest port.

"The fighting spirit and cooperation of that crew was the only thing that got them back. I want you men to have that fighting spirit, because if we get in a tight spot we are going to fight. We are going out to sink enemy ships, and if we do not sink ships we are wasting our time and should not even take this sub out."

That was the end of his talk and a cold chill ran down my spine. I was glad inside to know that we would not go down without a fight, and I am sure the rest of the crew felt that way, too.

We are on our way again. The next stop will be on our assigned station. We have been underway quite a few days now and are over half way to our station.

It is in the afternoon when the trouble first begins. There is a loud sound of air in the after torpedo room and the sub shudders. What has happened is that during the testing of the torpedo firing circuit a torpedo had been fired. It had taken the outer door of number eight tube off.

We wonder now if we will continue or if we will have to go back in. There is just one door between us and the sea now, and you can see daylight through the sight glass or the tube door. The Captain decides to go on to our area rather than turn back.

Two days pass and then we have a fire in one of our torpedoes forward and have to back down full and fire it. There are a few seconds when your heart seems to stop beating, for we do not know if the 'fish' (torpedo) will run or will explode and blow us all to kingdom come. It certainly looks dark for us, with things happening like this and not even on station yet.

It is windy today and the sea is a bit rough. The lookout sights something; looks like we will have some excitement. The crew is called to Battle Station Surface. We make our attack going in with all our guns firing. The next thing we know, shells are coming at us left and right. The small enemy ship has turned out to be the biggest gun boat we have ever seen. We make a very hasty retreat and are lucky to come out without a scratch. We continue on for our patrol station and look for something larger that we can hit with our torpedoes.

At last we have reached our area, the ship and crew is in fighting trim, and all we need now are some enemy ships. The sea has been pretty rough out in this part of the ocean, and we are patrolling along on one engine.

The days are slowly going by with nothing unusual happening. The fellows play cards or other games in the crew's mess, tell stories, and kid each other. The thing you do most is sleep when you are not on watch.

Today the weather is real bad, it is hard to walk through the boat. This is the fourth day now that we have been on station and nothing in sight. There is a feeling throughout the sub that we will be having a strike pretty soon now. Maybe tonight will do it…

It is a tough looking night on this 20 November 1944. It is getting dark now, and the ship is rigged for red so that no light will show topside. It will be a perfect night to meet the enemy, as it's going to be a really black night and storming like the devil.

It is not long after dark when the Radar Operator picks up a contact. The contact is so far off it must be land. The Captain is up and the Navigator checks: "No land there, Sir." It must be a big ship, maybe an aircraft carrier. We are all excited now; this is something to shoot at.

The Radar Tracking Party is stationed and four main engines put on the line. Whatever it is that we are tracking, it's traveling fast, and it takes all we can do to keep ahead of it. Midnight is drawing near, and pretty soon word is passed, "Battle Stations Night Attack." The general alarm is not sounded. Everyone has already gone to his battle station. This is it.

We are still having a job keeping ahead of our target, and we have to make flank speed in order to close the range. Soon the Captain says, "It looks like two battleships, a cruiser, and five destroyers." My God, a task force, and one lone submarine going in to attack.

We are closing the range and all tubes are made ready. The weather is getting worse, and you have to hold on in order to stand up. It is getting close to time to fire our torpedoes. The Captain changes course and is still getting bearings and ranges; otherwise it is quiet. You can just about hear your heart beating, and then the Captain says to the Executive Officer, "Fire when you are ready."

Then you hear, "Fire One," and the ship shakes as if angry, and you think to yourself, God, I hope they hit. The 'fish' are fired one after the other with so many seconds between. When all are fired forward we get all ahead full and swing around and fire aft.

About the time the last 'fish' was fired aft, there is a mighty explosion and another, and then others, the Captain yells, "We hit her… a big mass of flame and smoke came out of her… we must have hit her magazine."

Four torpedoes went into the first and biggest battleship and three went into the second one. We are going away at flank speed when the Captain asks, "Are the escorts chasing us?" to the Radar Operator.

"There is no one after us," the operator replies.

The Captain calls to the helmsman, "Right full rudder, we are going the wrong way."

We are still tracking them and they have picked up speed, but pretty soon we notice the biggest battle-wagon starting to slow down. We are getting ready to go in for the kill. Six tubes are made ready forward. We are about ready to fire, another minute will do the job.

Then all hell breaks loose, I hear the Captain shouting, "She's blown up, the whole area is bright as day." In a matter of minutes the battleship has disappeared below the surface of the ocean.

About a month later we were informed that this was the Japanese battleship Kongo (31,000 tons). The Sealion received the Presidential Unit Citation and our Captain the Navy Cross for this action.

USS Sealion Presidential Unit Citation

For outstanding performance in combat and distinguished service to the United States during the First, Second and Third war patrols in action against heavily escorted Japanese convoys and combatant units in the Pacific Area, and the performance of exceptional rescue services. Pursuing highly aggressive and tenacious tactics in the face of strong anti-submarine measures, and striking boldly despite severe enemy counterattacks, the USS Sealion inflicted severe damage upon the enemy; and by her accurate, intensive torpedo fire through brief periods of concentrated attacks, and eleven enemy ships, including a 2,300-ton destroyer and a 30,000-ton battleship, for a total of 101,400 tons and damaged an additional battleship of 30,000 tons. In addition, through outstanding skill and superb performance of duty the USS Sealion efficiently rescued from certain death, fifty-four British and Australian prisoners of war who were survivors of a torpedoed transport which had been transporting them from Singapore to the Japanese Empire when intercepted and sunk by U.S. submarines. In achievement attest to the Sealion's readiness for combat and gallant fighting spirit of her Officers and Men, and reflects the highest credit upon the United States Naval Service.

HIJMS Kongo, 1934.

HIJMS Kongo. Painting from the plastic model kit produced by Fujimi.

HIJMS Kongo, originally built as a battlecruiser by the British ship builder Vickers, seen in 1929-30 after being rebuilt as a battleship.

HIJMS Kongo.

Japanese Carrier Division Three under attack by Task Force 38 planes, 20 June 1944. The battleship in the lower center is either Haruna or Kongo. The carrier Chiyoda is at right. Photographed from a USS Bunker Hill (CV-17) plane.


Curtiss SB2C Helldiver: American Dive Bomber

Curtiss SB2C Helldiver.

The Curtiss SB2C Helldiver is a dive bomber developed by Curtiss-Wright during World War II. As a carrier-based bomber with the United States Navy (USN), in Pacific theaters, it supplemented and replaced the Douglas SBD Dauntless. A few survivors are extant.

Initially poor handling characteristics and late modifications caused lengthy delays to production and deployment, to the extent that it was investigated by the Truman Committee, which turned in a scathing report. This contributed to the decline of Curtiss as a company. Neither pilots nor aircraft carrier skippers seemed to like it. Nevertheless, the type was faster than the Dauntless, and by the end of the Pacific War, the Helldiver had become the main dive bomber and attack aircraft on USN carriers.

By the time a land-based variant, known as the A-25 Shrike, became available in late 1943, the Western Allied air forces had abandoned dedicated dive-bombers. A majority of A-25s delivered to the US Army Air Forces were transferred to the US Marine Corps, which used the type only in one side campaign and non-combat roles. The British Royal Navy and the Royal Australian Air Force also cancelled substantial orders, retaining only a few aircraft for research purposes.

Nicknames for the aircraft included "Big-Tailed Beast" or just "Beast", "Two-Cee", and "Son-of-a-Bitch 2nd Class"; the latter nickname was derived from the name SB2C and the aircraft's reputation for having difficult handling characteristics.

Design and Development

The Helldiver was developed to replace the Douglas SBD Dauntless. It was a much larger aircraft, able to operate from the latest aircraft carriers and carry a considerable array of armament. It featured an internal bomb bay that reduced drag when carrying heavy ordnance. Saddled with demanding requirements set forth by both the U.S. Marines and United States Army Air Forces, the manufacturer incorporated features of a "multi-role" aircraft into the design.

The Model XSB2C-1 prototype initially suffered development issues connected to its Wright R-2600 Twin Cyclone engine and three-bladed propeller; further concerns included structural weaknesses, poor handling, directional instability, and bad stall characteristics. In 1939, a student took a model of the new Curtiss XSB2C-1 to the MIT wind tunnel. Professor of Aeronautical Engineering Otto C. Koppen was quoted as saying, "if they build more than one of these, they are crazy". He was referring to controllability issues with the small vertical tail.

The first prototype made its maiden flight on 18 December 1940. It crashed on 8 February 1941 when its engine failed on approach, but Curtiss was asked to rebuild it. The fuselage was lengthened and a larger tail was fitted, while an autopilot was fitted to help the poor stability. The revised prototype flew again on 20 October 1941, but was destroyed when its wing failed during diving tests on 21 December 1941.

Large-scale production had already been ordered on 29 November 1940, but a large number of modifications were specified for the production model. Fin and rudder area were increased, fuel capacity was increased, self-sealing fuel tanks were added, and the fixed armament was doubled to four 0.50 in (12.7 mm) machine guns in the wings, compared with the prototype's two cowling guns. The SB2C-1 was built with larger fuel tanks, improving its range considerably.

The program suffered so many delays that the Grumman TBF Avenger entered service before the Helldiver, even though the Avenger had begun its development two years later. Nevertheless, production tempo accelerated with production at Columbus, Ohio and two Canadian factories: Fairchild Aircraft Ltd. (Canada), which produced 300 (under the designations XSBF-l, SBF-l, SBF-3, and SBF-4E), and Canadian Car and Foundry, which built 894 (designated SBW-l, SBW-3, SBW-4, SBW-4E, and SBW-5), these models being respectively equivalent to their Curtiss-built counterparts. A total of 7,140 SB2Cs and equivalent models were produced in World War II.

Type: Dive bomber

National origin: United States

Manufacturer: Curtiss-Wright

Built by:

Fairchild (Canada) (SBF)

Canadian Car & Foundry (SBW)

Primary users:

United States Navy

United States Marine Corps

United States Army Air Forces

French Navy

Number built: 7,140

Manufactured: 1943–1945

Introduction date: December 1942

First flight: 18 December 1940

Retired: 1959 (Italy)

Developed into: Curtiss XSB3C

Specifications (SB2C-4 Helldiver)

Crew: 2

Length: 36 ft 8 in (11.18 m)

Wingspan: 49 ft 9 in (15.16 m)

Height: 13 ft 2 in (4.01 m)

Wing area: 422 sq ft (39.2 m2)

Airfoil:

Root: NACA 23017

Tip: NACA 23009

Empty weight: 10,547 lb (4,784 kg)

Gross weight: 16,616 lb (7,537 kg)

Powerplant: 1 × Wright R-2600-20 Twin Cyclone 14-cylinder air-cooled radial piston engine, 1,900 hp (1,400 kW)

Propellers: 4-bladed constant-speed propeller

Maximum speed: 295 mph (475 km/h, 256 kn) at 16,700 ft (5,100 m)

Cruise speed: 158 mph (254 km/h, 137 kn)

Combat range: 1,165 mi (1,875 km, 1,012 nmi) with 1,000 lb (450 kg) bomb-load

Service ceiling: 29,100 ft (8,900 m)

Rate of climb: 1,800 ft/min (9.1 m/s)

Guns:

2 × 20 mm (0.787 in) AN/M2 cannon in the wings

2 × 0.30 in (7.6 mm) M1919 Browning machine guns in the rear cockpit

4 X 0.50 in (13 mm) M2 Browning machine guns, two each in gunpods mounted on underwing hardpoints (optional)

Rockets: 8 × 5 in (127 mm) High Velocity Aircraft Rockets

Bombs:

in internal bay: 2,000 lb (910 kg) of bombs or 1 × Mark 13-2 torpedo

on underwing hardpoints: 500 lb (230 kg) of bombs each

Operational History

US Navy

The U.S. Navy would not accept the SB2C until 880 modifications to the design and the changes on the production line had been made, delaying the Curtiss Helldiver's combat debut until 11 November 1943 with squadron VB-17 on Bunker Hill, when they attacked the Japanese-held port of Rabaul on the island of New Britain, north of Papua New Guinea. The first version of the SB2C-1 was kept stateside for training, its various development problems leading to only 200 being built. The first deployment model was the SB2C-1C. The SB2C-1 could deploy slats mechanically linked with landing gear actuators, that extended from the outer third of the wing leading edge to aid lateral control at low speeds. The early prognosis of the "Beast" was unfavourable; it was strongly disliked by aircrews due to its size, weight, and reduced range compared to the SBD it replaced.

In the Battle of the Philippine Sea, 45 Helldivers, most of which had been launched from extreme range, were lost when they ran out of fuel while returning to their carriers.

Among its major faults, the Helldiver was underpowered, had a shorter range than the SBD, was equipped with an unreliable electrical system, and its manufacturing quality control was often poor. The Curtiss-Electric propeller and the complex hydraulic system had frequent maintenance problems. One of the faults of the aircraft throughout its operational life was poor longitudinal stability, resulting from a fuselage that was too short due to the necessity of fitting onto aircraft carrier elevators. The Helldiver's aileron response was also poor and handling suffered greatly under 90 kn (100 mph; 170 km/h) airspeed; since the speed of approach to land on a carrier was supposed to be 85 kn (98 mph; 157 km/h), this proved problematic. The 880 changes demanded by the Navy and modification of the aircraft to its combat role resulted in a 42% weight increase, explaining much of the problem.

The solution to these problems began with the introduction of the SB2C-3 beginning in 1944, which used the R-2600-20 Twin Cyclone engine with 1,900 hp (1,400 kW) and Curtiss' four-bladed propeller. This substantially solved the chronic lack of power that had plagued the aircraft. The Helldivers would participate in battles over the Marianas, Philippines (partly responsible for sinking the battleship Musashi), Taiwan, Iwo Jima, and Okinawa (in the sinking of the battleship Yamato). They were also used in the 1945 attacks on the Ryukyu Islands and the Japanese home island of Honshū in tactical attacks on airfields, communications and shipping. They were also used extensively in patrols during the period between the dropping of the atomic bombs and the official Japanese surrender, and in the immediate pre-occupation period.

An oddity of the SB2Cs with 1942 to 1943-style tricolor camouflage was that the undersides of the outer wing panels carried dark topside camouflage because the undersurfaces were visible from above when the wings were folded.

In operational experience, it was found that the U.S. Navy's Grumman F6F Hellcat and Vought F4U Corsair fighters were able to carry an equally heavy bomb load against ground targets and were vastly more capable of defending themselves against enemy fighters. The Helldiver, however, could still deliver ordnance with more precision against specific targets and its two-seat configuration permitted a second set of eyes. A Helldiver also has a significant advantage in range over a fighter while carrying a bombload, which is extremely important in naval operations.

The advent of air-to-ground rockets ensured that the SB2C was the last purpose-built dive bomber produced. Rockets allowed precision attack against surface naval and land targets, while avoiding the stresses of near-vertical dives and the demanding performance requirements that they placed on dive bombers.

The SB2C remained in active postwar service in active duty US Navy squadrons until 1947 and in Naval Reserve aviation units until 1950. Surplus aircraft were sold to the naval air forces of France, Italy, Greece, Portugal, and Thailand. Greek SB2Cs served in combat in the Greek Civil War with additional machine guns mounted in wing pods. French SB2Cs flew in the First Indochina War from 1951 to 1954.

US Army and US Marine Corps Service

Built at Curtiss' St. Louis plant, 900 aircraft were ordered by the USAAF under the designation A-25A Shrike. The first ten aircraft had folding wings, while the remainder of the production order omitted this feature. Many other changes distinguished the A-25A, including larger main wheels, a pneumatic tailwheel, ring and bead gunsight, longer exhaust stubs, and other Army-specified radio equipment. By late 1943, when the A-25A was being introduced, the USAAF no longer had a role for the dive bomber, as fighter aircraft such as the Republic P-47 Thunderbolt had shown their ability to carry out tactical air support missions with great success.

The USAAF transferred 410 Helldivers to the US Marines. The A-standard 25As were converted to the USMC variant, SB2C-1A and one squadron, VMSB-151, based on Enjebi (a.k.a. Engebi/Enjibe; part of Enewetak Atoll) conducted bombing missions on bypassed Japanese strongpoints nearby. Otherwise, the SB2C-1A variant never saw combat, and was used primarily as a trainer and target tug.

Australian Service

At an early stage of World War II, the Australian government noted that the Royal Australian Air Force (RAAF) lacked dedicated dive bombers and ordered 150 Curtiss Shrikes. These aircraft were paid for by the US Government as Lend Lease aid.

By November 1943, when the first shipment of 10 Shrikes arrived in Australia, the RAAF had decided that dive bombing was an outmoded tactic. Vultee Vengeance dive bombers, which were already in service with the RAAF, were being replaced by light bombers. As a result, the order for the remaining 140 Shrikes was cancelled.

While the 10 aircraft received were taken on strength, with the RAAF serial prefix A69, only one of these Shrikes officially took to the air in RAAF service. A69-4 was assigned to No. 1 Air Performance Unit, for performance testing, between December 1943 and April 1944. The RAAF and US Fifth Air Force already operated a joint pool of aircraft types common to both services in the South West Pacific theatre and, by mid-January 1944, the other nine Shrikes had been transferred to USAAF units. A69-4 was also transferred to the USAAF in December 1944.

British Service

The Helldiver's service with the British resembled Australian experience with the type. A total of 26 aircraft, out of 450 ordered, were delivered to the Royal Navy's Fleet Air Arm, where they were known as the Helldiver I. After unsatisfactory tests by the A&AEE that pinpointed "appalling handling", none of the British Helldivers were used in action.

Greek Service

American aid provided the Royal Hellenic Air Force with 48 Curtiss SB2C-5 Helldivers from surplus U.S. Navy stocks. The aircraft were delivered by the aircraft carrier USS Sicily (CVE-118) in the spring of 1949. From the 48 aircraft, 6 were used for ground instruction or spare parts and 42 were given to 336th Fighter Squadron (336 Μοίρα Διώξεως) to replace Supermarine Spitfires and the squadron's name was changed to 336th Bomber Squadron (336 Μοίρα Βομβαρδισμού).

Greek SB2C-5 Helldivers had minor changes for their COIN operations: the hard rubber tailwheel (for carrier use) was replaced by a bigger pneumatic tire for use on landing strips; and the rear gunner station and its twin MGs were deleted, as no aerial opposition existed and weight reduction was used for bombs and extra machine guns.

Curtiss SB2C-5 Helldivers, Supermarine Spitfires, and North American T-6D/Gs were used in ground-attack missions against Communist ground forces, camps, and transports during the last stages of the Greek Civil War.

Curtiss SB2C-5 Helldivers saw a relatively brief combat service and were gradually phased out by 1953. A few were in use until 1957 as photographic aircraft. One Curtiss SB2C-5 Helldiver was restored in 1997 and is displayed in the Hellenic Air Force Museum.

French Service

Between 1949 and 1954, France bought 110 SB2C-5 Helldiver aircraft to replace their aging SBD-5 Dauntless that had been flying in combat in Vietnam. The French Aeronavale flew the Helldiver from 1951 to 1958.

Some of these aircraft were allotted to flottilles 3F and 9F stationed on board the carriers Arromanches, Bois Belleau, and La Fayette, during the First Indochina War. The Helldivers were used to support French troops on the ground during the Battle of Dien Bien Phu in 1954.

Variants

XSB2C-1: Prototype powered by a 1,700 hp (1,268 kW) R-2600-8 engine

SB2C-1: Production version for United States Navy with four 0.50 in (12.7 mm) wing guns and one 0.30 in (7.62 mm) dorsal gun, 200 built.

SB2C-1A: Original designation for United States Army Air Corps version which became A-25A later used for 410 A-25As transferred to the United States Marine Corps.

SB2C-1C: SB2C-1 with two 20 mm (0.79 in) wing-mounted cannons and hydraulically operated flaps, 778 built. First to see combat.

XSB2C-2: One SB2C-1 fitted with twin floats in 1942.

SB2C-2: Production float plane version, 287 cancelled and not built.

XSB2C-3: One SB2C-1 re-engined with a 1,900 hp (1,417 kW) R-2600-20.

SB2C-3: As SB2C-1c re-engined with a 1,900 hp (1,417 kW) R-2600-20 and four-bladed propeller, 1,112 built.

SB2C-3E: SB2C-3s fitted with APS-4 radar.

SB2C-4: SB2C-1c but fitted with wing racks for eight 5 in (127 mm) rockets or 1,000 lb (454 kg) bombs, 2,045 built.

SB2C-4E: SB2C-4s fitted with APS-4 radar.

XSB2C-5: Two SB2C-4s converted as prototypes for -5 variant.

SB2C-5: SB2C-4 with increased fuel capacity, frameless sliding canopy, tailhook fixed in extended position, and deletion of the ASB radar, 970 built (2,500 cancelled).

XSB2C-6: Two SB2C-1Cs fitted with 2,100 hp (1,566 kW) R-2600-22 engine and increased fuel capacity.

SBF-1: Canadian built version of the SB2C-1, 50 built by Fairchild-Canada

SBF-3: Canadian built version of the SB2C-3, 150 built by Fairchild-Canada.

SBF-4E: Canadian built version of the SB2C-4E, 100 built by Fairchild-Canada.

SBW-1: Canadian built version of the SB2C-1, 38 built by Canadian Car & Foundry company.

SBW-1B: Canadian built version for lend-lease to the Royal Navy as the Helldiver I, 28 aircraft built by Canadian Car & Foundry company.

SBW-3: Canadian built version of the SB2C-3, 413 built by Canadian Car & Foundry company.

SBW-4E: Canadian built version of the SB2C-4E, 270 built by Canadian Car & Foundry company.

SBW-5: Canadian-built version of the SB2C-5, 85 built (165 cancelled) by the Canadian Car & Foundry company.

A-25A Shrike: United States Army Air Corps version without arrester gear or folding wings and equipment changed, 900 built

Helldiver I: Royal Navy designation for 28 Canadian-built SBW-1Bs

Operators

Australia: Royal Australian Air Force

France: French Navy Aviation Navale

Greece: Royal Hellenic Air Force

Italy: Italian Air Force operated 42 aircraft from 1950 until 1959

Portugal

Portuguese Navy (until 1952)

Portuguese Air Force (after 1952)

Thailand

Royal Thai Air Force

Royal Thai Navy

United Kingdom: Royal Navy Fleet Air Arm

United States

United States Army Air Forces

United States Marine Corps

United States Navy

Surviving Aircraft

NOTE: All surviving aircraft identified by original US Navy Bureau of Aeronautics (BuAer) Bureau Numbers (BuNo).

Greece

On Display

SB2C-5: 83321 - Hellenic Air Force Museum, Decelea Air Base.

Thailand

On Display

SB2C-5: 83410 - Royal Thai Air Force Museum, Don Muang Royal Thai Air Force Base, Bangkok.

United States

Airworthy

A-25A Shrike/SB2C-1A: 75552 - based at the National Museum of World War II Aviation in Colorado Springs, Colorado.

SB2C-5

83393 - based at the Fagen Fighters WWII Museum in Granite Falls, Minnesota.

83589 - based at the Commemorative Air Force (West Texas Wing) in Houston, Texas. This late-production Helldiver, built in 1945, makes frequent airshow appearances. In 1982, it experienced engine failure and a hard emergency landing that caused extensive damage; volunteers of the CAF put in thousands of hours and spent in excess of $200,000 to restore the aircraft to flying condition once more.

On Display

SB2C-5: 83479 - Steven F. Udvar-Hazy Center of the National Air and Space Museum in Chantilly, Virginia.

Under Restoration or in Storage

A-25A Shrike/SB2C-1A: 76805 - in storage at the National Museum of the United States Air Force at Wright-Patterson AFB in Dayton, Ohio.

SB2C-3: 19075 - to airworthiness at the Yanks Air Museum in Chino, California

SB2C-4: 19866 - in storage at the National Naval Aviation Museum at Naval Air Station Pensacola, Florida. It crashed on 28 May 1945 in Lower Otay Reservoir, near San Diego, California after engine failure during a training exercise. Both pilot E.D. Frazer and his passenger escaped uninjured, but the Helldiver sank in 90 ft. of water. The aircraft was discovered in February 2010 by a fisherman and recovered on 20 August 2010 for restoration.

Wrecks

A SB2C-4E Helldiver belonging to the United States Navy crashed and burned in foul weather on 9 October 1945, while en route from New Cumberland, Pennsylvania to its base at Naval Air Station Grosse Ile, Michigan after participating in Nimitz Day celebrations held in Washington, D.C. Pilot Frank Campbell and gunner George Cohlmia, both World War II veterans, were killed in the crash. The remains of the plane are still located at the crash site on Laurel Hill in Ligonier Township, Pennsylvania, three miles southeast of the village of Waterford.

In January 2010, a scuba diver discovered a SB2C-1C Helldiver that was ditched in Maalaea Bay off South Maui in August 1944. The Helldiver is covered in coral and is missing its tail section. The aircraft experienced problems with its empennage after dive bombing maneuvers which forced pilot Lieutenant William Dill to ditch. It lies in 50 ft of water facing east. The site, which is protected under state and federal law, is in the process of being marked with a plaque by the U.S. Navy. A mooring may be installed at a later point in time to facilitate dives on the site.

On 19 December 2011 scuba divers discovered an SB2C Helldiver off the coast of Jupiter, Florida. The aircraft is mostly intact and was found inverted with the landing gear retracted. In May 2012, the US Navy conducted a survey of the aircraft, recovering a data plate from the horizontal stabilizer. The Naval History and Heritage Command's Underwater Archaeology Branch were attempting to determine if the numbers stamped on the data plate were readable to identify the aircraft.

SB2C-5: 83414 - On 25 March 2010, the Oregon State Police, Tillamook County Sheriff's Office, and the United States Navy announced that during a logging operation near Rockaway Beach, Oregon, the wreck of an SB2C Helldiver was located. Initial responders believe there may be human remains on the scene.

Bibliography

Abzug, Malcolm J. and E. Eugene Larrabee. Airplane Stability and Control: A History of the Technologies that Made Aviation Possible (Cambridge Aerospace Series). Cambridge, UK: Cambridge University Press, 1997.

Andrews, Harald. The Curtiss SB2C-1 Helldiver, Aircraft in Profile 124. Windsor, Berkshire, UK: Profile publications Ltd., 1967, reprinted 1971 and 1982.

Bowers, Peter M. Curtiss Aircraft 1907-1947. London: Putnam & Company Ltd., 1979. Brown, Eric, CBE, DCS, AFC, RN., William Green and Gordon Swanborough. "Curtiss Helldiver". Wings of the Navy, Flying Allied Carrier Aircraft of World War Two. London: Jane's Publishing Company, 1980, pp. 90–99.

Crosnier, Alain and Jean-Pierre Dubois. Douglas SBD-5 Dauntless & Curtiss SB2C-5 Helldiver: Bombardiers en piqué de l’Aéronautique Navale (in French). Clichy-la-Garenne, France: DTU sarl., 1998.

Donald, David, ed. American Warplanes of World War II. London: Aerospace Publishing, 1995.

Drendel, Lou. U.S. Navy Carrier Bombers of World War II. Carrollton, Texas: Squadron/Signal Publications, Inc., 1987.

Ethell, L. Jeffrey. Aircraft of World War II. Glasgow: HarperCollins Publishers, 1995.

Forsyth, John F. Helldivers, US Navy Dive-Bombers at War. St. Paul, Minnesota: Motorbooks International, 1991.

Kinzey, Bert. SB2C Helldiver in Detail & Scale, D&S Vol.52. Carrollton, Texas: Squadron/Signal Publications, 1997.

Ociepka, Paweł P. "Curtiss SB2C Helldiver" (in Polish). Skrzydła w miniaturze 12. Gdańsk, Poland: Avia-Press, 1995.

Shettle, M.L. Jr. United States Marine Corps Air Stations of World War II. Bowersville, Georgia: Schaertel Publishing Co., 2001.

Smith, Peter C. SB2C Helldiver. Ramsbury, Marlborough, Wiltshire, UK: The Crowood Press Ltd., 1998.

Stern, Robert. SB2C Helldiver in Action, Aircraft Number 54. Carrollton, Texas: Squadron/Signal Publications inc., 1982.

Swanborough, Gordon and Peter M. Bowers. United States Navy Aircraft since 1911. London: Putnam, Second edition, 1976.

Taylor, John W. R. "Curtiss SB2C/A-25 Helldiver." Combat Aircraft of the World from 1909 to the present. New York: G.P. Putnam's Sons, 1969.

Tillman, Barrett. Helldiver Units of World War 2. London: Osprey Publishing, 1997.

Tillman, Barrett and Robert L. Lawson. U.S. Navy Dive and Torpedo Bombers of WWII. St. Paul, Minnesota: Motor Books Publishing, 2001..

Wilson, Stewart (1994). Military Aircraft of Australia. Weston Creek, Australian Capital Territory: Aerospace Publications.

Winchester, Jim. "Curtiss SB2C Helldiver." Aircraft of World War II: The Aviation Factfile. Kent, UK: Grange Books plc, 2004.

 

SB2C-1 Helldiver, circa 1941.

 

SB2C-1 Helldiver.

SB2C Helldiver.

SB2C Helldiver.

SB2C Helldiver, white B-9, moving forward for launch from an aircraft carrier.

SB2C-1 Helldiver in USAAF service as the A-25.

SB2C Helldiver, Training Squadron 75 (75-VT-22).

Curtiss XSB2C-2 Helldiver floatplane.

Curtiss SB2C-4 Helldiver, “177.”

Curtiss XSB2C-3 Helldiver ("FT" = Flight Test).

Curtiss SB2C-4 Helldiver, "black 51".

Curtiss SB2C Helldiver accompanied by a Grumman F6F Hellcat.

Curtiss SB2C Helldiver, "white 75".

Curtiss A-25 Helldivers, USAAF.

Curtiss A-25A Helldiver, “K-42” (41-18850), USAAF, Nashville, Tennessee, 12 December 1943. A variety of other aircraft are visible on the field, including a Martin B-26 Marauder, Douglas C-47 Skytrain and Consolidated B-24 Liberator.

Curtiss SB2C Helldivers from the Fast Carrier Task Force 58 are seen midair on a mission over Saipan, in the Mariana Islands, August 24, 1944.

Curtiss SB2C-3 Helldivers bank over USS Hornet (CV-12) before landing, following strikes on Japanese shipping in the China Sea, circa mid-January 1945. Photographed by Lt. Cmdr. Charles Kerlee, USNR.
Another view of the same scene as seen in the above photo, taken a few seconds later. (U.S. National Archives and Records Administration 80-G-320999)
SB2Cs, F6Fs, and TBFs, on a carrier deck ready for take-off.

Curtiss SB2C gets the “Go!” signal from FLY 1.

Curtiss SB2C with Grumman F6F Hellcat at left during launching operations on an aircraft carrier.

Curtiss SB2C Helldiver misses the wire and crashes into the island of the USS Hancock.

Curtiss SB2C Helldiver from USS Hornet over a burning Japanese tanker.

Curtiss SB2C Helldivers.

Canadian-built Curtiss Helldiver, the SBW-1. Although able to carry bigger loads further the “Beast” never earned the reputation of the Douglas SBD Dauntless.

Curtiss 84 XSB2C-1 Helldiver BuNo 1758 US Navy.

Curtiss 84 XSB2C-1 Helldiver BuNo 1758 US Navy.

Curtiss SB2C Helldiver.

Curtiss SB2C Helldiver’s pilot and gunner dressed in flight gear, ready to go aloft.

Curtiss A-25A-20-CS Helldiver s/n 42-79959.

Curtiss SB2C Helldivers on the deck of an aircraft carrier as an armorer carries a belt of ammunition.

Curtiss SB2C Helldiver dive bombers returning to their carrier after a mission.

A student officer reloads the twin .30 caliber machine guns in the rear gun position of a Curtiss SB2C Helldiver dive bomber. The student pilot had to learn not only to fly the plane, but also to do all of the work on it normally done by the aircrewman.

Curtiss SB2C Helldiver.

A Curtiss SB2C Helldiver, 8-B-21, flies escort over a convoy in the Pacific. The wavy lined running down the right side of the image is a water stain on the photographic print.

A Curtiss SB2C Helldiver in tricolour scheme and tail markings for Bombing Squadron 80 (VB-80), which operated off the aircraft carrier USS Hancock (CV-19), in February 1945. This aircraft is the SB2C-5, BuNo 83589. It is flying with the Commemorative Air Force, based in Graham, Texas.

Curtiss XSB2C Helldiver prototype on its maiden flight on 18 December 1940.

A U.S. Navy Curtiss SB2C-4 Helldiver bomber from Bombing Squadron VB-3, Carrier Air Group 3 (CVG-3), assigned to the aircraft carrier USS Yorktown (CV-10), fly over the invasion fleet, during strikes on Iwo Jima on 22 February 1945. Note Yorktown´s geometric air group identification symbol on the SB2Cs. (Naval History & Heritage Command  80-G-304753)

U.S. Navy Curtiss SB2C-1 Helldiver bombers Bombing Squadron Five (VB-5) pictured on the flight deck aboard the ciarctaft carrier USS Yorktown (CV-10). VB-5 went aboard Yorktown during May-June 1943 to participate in the ship's shakedown cruise. The results were disastrous, for the squadron's SB2C Helldivers suffered numerous mechanical difficulties, not the least of which was the propensity for the aircrafts' tailhooks to pull out of their wells during recovery aboard the ship. Yorktown´s skipper, Capt. Joseph C. Jocko Clark, became so irate that he had them replaced with Douglas SBD-5 Dauntless dive-bombers, which VB-5 eventually took into combat. (US Navy)

 Curtiss SB2C Helldiver on flight deck during take off from aircraft carrier.

 U.S. Navy Curtiss SB2C-5 Helldivers of Attack Squadron 1A (VA-1A) "Tophatters" roll into dives to support amphibious forces during postwar landing exercise. VA-1A was known as VB-4 before being redesignated in November 1946. VA-1A was assigned to Carrier Air Group 1 (CVAG-1) aboard the aircraft carrier USS Tarawa (CV-40). (U.S. Navy National Museum of Naval Aviation 1996.253.136)

A Royal Australian Air Force Curtiss A-25A Shrike in flight over the United States, circa in 1943. A land-based variant of the U.S. Navy SB2C-1, 150 A-25s were ordered by the RAAF to fill the dive-bomber role. Due to its long development, only 10 (serials A69-1 to A69-10) were delivered in November 1943 after the perceived need for them had passed. (U.S. Navy National Museum of Naval Aviation 1996.253.526)

 Eight Curtiss SB2C-5 Helldiver dive bombers (Escadrille 3F) and six Grumman F6F-5 Hellcat fighters (Escadrille 1F) on the flight deck of the French aircraft carrier Arromanches (R95) in the Gulf of Tonkin, circa 1951. The Arromanches (R95), the former HMS Colossus (R15), arrived on station off Indochina in 1948 operating Douglas SBD Dauntless dive bombers and Supermarine Seafire fighters. After a period of overhaul, the carrier returned to combat in late 1951 and over the course of the next three years operated SB2C-5s, and F6F-5s Hellcats in the French Indochina War. Note the Sikorsky HO3S plane guard helicopter. (U.S. Navy National Museum of Naval Aviation 1996.253.527)

Curtiss A-25A-5-CS Shrike (Serial Number: 41-18787). (USAAF)

Curtiss SB2C Helldiver.

 XSB2C's of VMSB-244, the Bombing Banshees, fly toward Davao on Mindanao for bombing, strafing, and rocket runs in support of Army ground troops there. The squadron which used SBDs in the Luzon campaign is now using SB2C's in the Mindanao operation. Location: Davao, Mindanao. Unit: VMSB-244. 12 June 1945. (US National Archives)

Two SB2C's of VMSB-244, the Bombing Banshees, are shown on a mission over Davao, Mindanao. They are flying support for the Army troops in the Davao area from their strip at Malabang. Location: Davao, Mindanao Philippines Unit: 1st MAW / MAG-24. 12 June 1945. (US National Archives)

Helldivers of VMSB-244 "Bombing Banshees" of the First Marine Air Wing, return from a strike in support of Army ground troops in the Davao area of Mindanao. Location: Mindanao, Philippines. Unit: 1st MAW / MAG-24. 28 July 1945. (US National Archives)

Helldivers of VMSB-244 "Bombing Banshees" from the First Marine Air Wing en route to a target in the Davao area of Mindanao. 28 July 1945. (US National Archives)

A U.S. Marine Corps Curtiss SB2C-4 Helldiver piloted by Lt. Frederick C. Lambert, USMCR, flying over Jaluit Atoll in the Marshall Islands, in October 1945. The Japanese light cruiser Kashima and the U.S. Navy destroyer escort USS Thornhill (DE-195) are visible in the background. Kashima was at Jaluit on 22-23 October 1945 to take 911 Japanese soldiers on board for repatriation to Japan. Thornhill was station ship at Jaluit for the whole month. (US Navy National Naval Aviation Museum NNAM.1996.253.538)

 U.S. Marine Corps Curtiss SB2C-4 Helldiver bombers, probably of Marine Scout Bombing Squadron 333 (VMSB-333), pictured at Marine Corps Air Station Ewa, Territory of Hawaii, circa 1945. (U.S. Navy National Museum of Naval Aviation 1996.253.436)

 U.S. Marines SB2Cs on Falalop Island, Uluthi atoll, December 1944. (U.S. National Archives and Records Administration 80-G-408109)

Battle of Iwo Jima, March 1945. SB2C’s give air support to initial landings on Iwo Jima. (Museum of the U.S. Navy 80-G-412527)

 Two U.S. Navy Curtiss SB2C-1C Helldiver dive bombers of bombing squadron VB-1 in the landing circle of the aircraft carrier USS Yorktown (CV-10) in July 1944. (U.S. Navy photo 80-G-376123)

 Aircraft of Carrier Air Group 18 (CVG-18) warm up their engines before launching from the U.S. Navy aircraft carrier USS Leyte (CV-32). CVG-18 was assigned to the Leyte for her shakedown cruise to the Caribbean from 16 September to 12 December 1946. Visible are six Grumman F8F-1 Bearcats from Fighting Squadron 18 (VF-18) and/or from Bombing Fighting Squadron 18 (VBF-18) "Bearcats", eight Curtiss SB2C-5 Helldivers from Bombing Squadron 18 (VB-18) "Sunday Punchers", and eight Grumman TBM-3E Avengers from Torpedo Squadron 18 (VT-18) "Carrier Clowns". (U.S. Navy photo from the USS Leyte (CV-32) 1946 cruise book)

 A U.S. Navy Vought F4U-1D Corsairs and Curtiss SB2C-4 Helldivers of Carrier Air Group 5 (CVG-5) spotted on the flight deck of the aircraft carrier USS Franklin (CV-13) during operations in the Pacific, circa February 1945. (U.S. Navy National Museum of Naval Aviation photo No. 1996.488.210.192)

A U.S. Navy Curtiss SB2C-3 Helldiver caught in the after radio mast of the aircraft carrier USS Intrepid (CV-11) after a night landing accident on 30 October 1944. The plane was assigned to Bombing Squadron 7 (VB-7) aboard USS Hancock (CV-19). (US Naval History & Heritage Command NH 95398)

A U.S. Navy Curtiss SB2C Helldiver after hitting the crash barrier during a landing aboard the escort carrier USS Tripoli (CVE-64), in 1945. From January to November 1945, Tripoli was assigned to Carrier Division 11 and trained pilots off Hilo, Hawaii. (U.S. Navy photo from the USS Tripoli (CVE-64) 1943-1945 cruise book)

A U.S. Navy Curtiss SB2C Helldiver is stopped by the crash barrier aboard the aircraft carrier USS Hancock (CV-19), circa 1944. (U.S. Navy photo from the USS Hancock (CV-19) 1944-1946 cruise book)

A U.S. Navy Curtiss SB2C Helldiver landing aboard the escort carrier USS Tripoli (CVE-64), in 1945. Note that the aircraft is coming in too high and flies into the crash barrier. From January to November 1945, Tripoli was assigned to Carrier Division 11 and trained pilots off Hilo, Hawaii. (U.S. Navy photo from the USS Tripoli (CVE-64) 1943-1945 cruise book)

U.S. Navy Curtiss SB2C Helldivers from Bombing Squadron 16 (VB-16) fly past Mout Fuji, Japan, in August 1945. VB-16 was assigned to Carrier Air Group 16 (CVG-16) aboard the aircraft carrier USS Randolph (CV-15). Note Randolph's carrier air group identification letter "L", introduced on 27 July 1945. (U.S. Navy photo from the USS Randolph (CV-15) World War II cruise book)

A U.S. Navy Curtiss SB2C-1 Helldiver dropping a bomb, circa in 1943. This aircraft, coded "Fox Baker Tare-5" (FBT-5), was used for dive bombing pictures for publicity.

A U.S. Navy Curtiss SB2C-1 Helldiver of Bombing Squadron 5 (VB-5) lands on board the aircraft carrier USS Yorktown (CV-10) with a broken tail wheel, circa in May 1943. The SB2C-1 Helldivers were then undergoing carrier qualification tests on the Yorktown. Note the flight deck crewmen running to assist. The results of the carrier qualifications were disastrous, for the SB2C Helldivers suffered numerous mechanical difficulties, not the least of which was the propensity for the aircrafts' tailhooks to pull out of their wells during recovery aboard the ship. Yorktown's skipper, Captain Joseph C. "Jocko" Clark, became so irate that he had them replaced with Douglas SBD-5 Dauntless dive-bombers, which VB-5 eventually took into combat. Clark even recommended the dropping of the SB2C program. (US Naval History & Heritage Command 80-G-K-15830)

U.S. Navy Curtiss SB2C-1 Helldiver of Bombing Squadron 17 (VB-17) in flight over Betio, Tarawa Atoll, in November 1943. (U.S. Navy photo from the USS Bunker Hill 1943-1944 cruise book)

Curtiss SB2C-1 Helldiver aircraft on deck of the U.S. Navy aircraft carrier USS Yorktown (CV-10), probably taken during the carrier qualifications of the SB2C, circa May 1943. As a result of these trials, Captain J.J. Clark, USN, of the Yorktown recommended the dropping of the SB2C program. (US Naval History & Heritage Command 80-G-K-15598)