Boeing-Stearman Model 75

 

U.S. Navy Stearman NS-1 primary trainers (9684, 9683) of the NAS Pensacola Flight School, 1936.

The Stearman (Boeing) Model 75 is an American biplane formerly used as a military trainer aircraft, of which at least 10,626 were built in the United States during the 1930s and 1940s. Stearman Aircraft became a subsidiary of Boeing in 1934. Widely known as the Stearman, Boeing Stearman, or Kaydet, it served as a primary trainer for the United States Army Air Forces, the United States Navy (as the NS and N2S), and with the Royal Canadian Air Force as the Kaydet throughout World War II. After the conflict was over, thousands of surplus aircraft were sold on the civilian market. In the immediate postwar years, they became popular as crop dusters and sports planes, and for aerobatic and wing walking use in air shows.

USAAC/USAAF Designations

The U.S. Army Air Forces Model 75 Kaydet had three different designations, PT-13, PT-17 and PT-18, depending on which type of radial engine was installed.

PT-13: Initial production version with Lycoming R-680-B4B engine, 26 built in 1936.

        PT-13A Model A75 with R-680-7 engine, 92 delivered from 1937 to 1938.
        PT-13B R-680-11 engine, 255 delivered from 1939 to 1941.
        PT-13C Six PT-13Bs modified for instrument flying.
        PT-13D Model E75 with R-680-17 engine, 793 delivered

PT-17: Version with Continental R-670-5 engine, 2,942 delivered.

        PT-17A 136 PT-17s modified with blind-flying instrumentation.
        PT-17B Three PT-17s modified with agricultural spraying equipment for pest control near army bases.
        PT-17C Single PT-17 conversion with standardized Army-Navy equipment.

PT-18: Version with Jacobs R-755-7 engine, 150 built. Further production was cancelled as the engines were needed for other types of trainers.

        PT-18A Six PT-18s modified with blind-flying instrumentation.

PT-27: USAAF paperwork designation given to 300 D75N1/PT-17 aircraft supplied under Lend-Lease to the Royal Canadian Air Force. The last example built, FK108, had a canopy installed.

US Navy Designations

NS: Up to 61 Model 73B1 delivered, powered by 220 hp (160 kW) Wright J-5/R-790 Whirlwind radials. 

N2S: Known colloquially as the "Yellow Peril" from its overall yellow paint scheme.

        N2S-1 Model A75N1 with Continental R-670-14 engine, 250 delivered.
        N2S-2 Model B75 with Lycoming R-680-8 engine, 125 delivered in 1941.
        N2S-3 Model B75N1 with Continental R-670-4 engine, 1,875 delivered.
        N2S-4 Model A75N1 with Continental R-670-4 and -5 engines, 457 delivered of 579 ordered, including 99 PT-17s diverted from U.S. Army orders.
        N2S-5 Model E75 with Lycoming R-680-17 engine, 1,450 delivered.

Sailor cranking the engine of a Boeing-Stearman N2S-2 Kaydet (3553) at the Naval Air Station Corpus Christi, Texas, in 1943.

Stearman PT-17, US Army Air Corps.

Boeing-Stearman PT-17 Kaydet (42-16408) USAAF.

Boeing-Stearman PT-17 Kaydet (41-25202), USAAF.

Boeing-Stearman Model 75.

Boeing-Stearman Model 75.

Boeing-Stearman Model 75.

Boeing-Stearman Model 75.

Fueling a Boeing-Stearman Model 75.

Naval Aircraft Factory N2S primary trainers at the Naval Air Base, Corpus Christi, Texas, August 1942.

U.S. Navy Parachute Rigger 3rd Class Lorna Peterson, USNR(W), climbs out of the after cockpit of a Boeing-Stearman N2S training plane, following an orientation flight at Naval Air Station Ottumwa, Iowa, circa 1944-45. The pilot was Lieutenant (Junior Grade) Keith W. Sharer, USNR, a flight instructor at the station.

Boeing-Stearman N2S Kaydets at Corpus Christi, Texas.

U.S. Navy Boeing-Stearman N2S Kaydet used at the Naval Air Station Corpus Christi, Texas, as an ambulance for rescue work as a result of crashes in inaccessible regions of Texas adjacent to the training station, 1942.

Boeing-Stearman N2S-3 Kaydet (BuNo 43579).

Stearman PT-27 (NC56259), a beautiful clean surplus plane, Hayward, California, March 1946. The Boeing-Stearman PT-27 was the designation for 300 Model 75 primary trainers produced to go to Canada under Lend-Lease. In Canada the PT-27 was officially called the 'Kaydet'. Canada was the only place where this was the type's official name, but it was also adopted elsewhere. The PT-27 was a two seat single-bay biplane. The fuselage was built around a welded steel tube framework, the wings around a wooden framework, both fabric covered. It had a fixed undercarriage with single faired legs. The PT-27 was powered by the Continental R-670-R engine, and was similar to the USAAF's PT-17, but adapted for use in winter weather. They were delivered between February and October 1942. Some of the Canadian aircraft were given cockpit canopies, cockpit heating, full blind flying instruments and a hood for instrument flying.

Curtiss A-12 Shrike: American Ground Attack Aircraft

 

Curtiss A-12 Shrike (33-212) US Army Air Corps, the first A-12 that was delivered to Wright Field, Ohio, on November 21, 1933. It was scrapped in October 1936.
 

The Curtiss A-12 Shrike was the United States Army Air Corps' second monoplane ground-attack aircraft, and its main attack aircraft through most of the 1930s. It was based on the A-8, but had a radial engine instead of the A-8's inline, water-cooled engine, as well as other changes. 

Curtiss A-12 Shrike (33-236) US Army Air Corps.

Eleven Curtiss A-12 Shrike aircraft in formation near Wheeler Field, Oahu, Hawaii, 1940.

Curtiss A-12 "Shrike" awaiting delivery to the Chinese Nationalist Air Force in 1936.

Curtiss A-12 Shrike, 90th Attack Squadron, Fort Crockett, Texas.

Curtiss A-12 Shrike Serial 33-229 of the 13th Attack Squadron, 3rd Attack Group.

Curtiss A-12 Shrike.

Curtiss A-12 Shrike.

Curtiss A-12 Shrike.


Civil Air Patrol: A Story of Unique Service and Selfless Sacrifice

Stinson HW-75, or 105 Voyager airplane. The design was later modified to the L-5 Sentinel for the war. Civil Air Patrol Base, Bar Harbor, Maine. Ground crew making a routine overhaul of a patrol plane at base headquarters of Coastal Patrol #20, June 1943.

by Steve Cox

Published December 8, 2016 

Brave. Heroic.

They were the citizen fliers of America’s greatest generation who, propelled by duty, honor and love of country, sacrificed all in defense of America in the earliest, darkest days of World War II.

Their story is extraordinary, for these founding members of Civil Air Patrol — more than 1,500 strong — performed the most amazing feats. They hunted Nazi U-boats and chased them from America’s shores. They searched for the lost. They saved lives. They made a profound difference.

Inspired by the highest sense of patriotism and pride, these fearless aviators relentlessly flew up and down the Atlantic and Gulf coastlines to protect their homeland. Without their coastal patrols during the first 18 months of the war, who knows what might have happened. The marauding Nazi submarines were using torpedoes to sink ships, barges and oil tankers in America’s shipping lanes, almost at will. And the United States Navy and Army did not have the ships, aircraft or manpower to prevent the attacks. From January to March 1942, 52 tankers were sunk, often within sight of civilians on shore.

The economic impact, not to mention the number of lives lost, was quickly adding up, prompting Army General George C. Marshall to say, “The losses by submarines off our Atlantic seaboard and in the Caribbean now threaten our entire war effort.”

Something had to be done to stop the carnage. The stage was set for these civilian founders to come to the aid of their country.

In response to the ever-increasing submarine attacks, the Tanker Committee of the Petroleum Industry War Council urged the Navy Department and the War Department to consider the use of CAP to help patrol America’s sea lanes. While the Navy initially rejected this suggestion, the Army decided it had merit, and the coastal patrols began in earnest in March 1942. By late March 1942, the Navy also began using the services of CAP.

Oil companies and other organizations provided funds to help pay for some CAP operations, including vitally needed shore radios for monitoring the missions. But most of the aircraft and emergency equipment were furnished by the civilians who had taken up the cause of defending America’s shores. Their mission was to report enemy subs to the military and to drive them farther underwater, where they would be forced to slow down and use their limited battery power.

So many subs were spotted that the decision was soon made to arm CAP’s light aircraft with small bombs and its larger aircraft with 325-pound depth charges.

The planes of these “subchasers” — mostly Stinsons and Fairchilds — were painted red and yellow with special markings (a blue circle with a white triangle) to identify them as CAP aircraft. They were equipped with only a compass for navigation and a single radio for communication.

Patrols were conducted up to 60 miles off shore, generally with two planes flying together. Flights were made daily despite the weather, and in all seasons, including the winter, when ditching an aircraft in cold seas could mean certain death to the aircrews.

Emergency equipment was often lacking, particularly during the earliest patrols, where inner tubes and kapok duck hunter vests were carries as flotation devices. At the time, ocean-worthy wet suits, life vests and life rafts were unavailable.

Despite these conditions, the patrols were an immediate success. Renowned subchaser Eddie Edwards was perhaps the first CAP pilot to spot a Nazi U-boat. As instructed, he radioed the sub’s position to naval forces, prompting the vessel to crash-dive and head farther out to sea, where it was less of a menace to the nation’s shipping.

The subchasers flew daily from dawn to dusk, logging more than 24 million miles from 21 Coastal Patrol bases along America’s shores. They hunted U-boats “from Maine to Mexico.” And they were quite successful, reporting 173 suspected subs and attacking 57.

Their effectiveness at deterring coastal U-boat operations was instrumental in eventually making Civil Air Patrol the official auxiliary of the U.S. Air Force. By mid-July 1942, German Adm. Karl Doenitz, commander of all Nazi U-boats, withdrew his last submarines from America’s shores after increasing losses and reduced success against merchant traffic.

Along with his notoriety as one of the very first subchasers, Edwards held celebrity status within CAP as one of the first two Coastal Patrol pilots awarded the Air Medal for heroism during World War II. He and his commanding officer, Maj. Hugh R. Sharp Jr., each received the medal in February 1943 after President Roosevelt heard of their daring rescue of a fellow airman downed in bitterly cold high seas off Maryland.

Edwards, in an interview in 2006, clearly remembered the rescue of 1st Lt. Henry Cross, which earned him the medal and subchaser fame. “I got the call that one of our planes was down, and Maj. Sharp asked me to go with him,” Edwards said. “We had no trouble finding the crash site. We spotted a body, so we made an emergency landing and fished him out. He was alive, but we never found the other guy.”

The rescue on July 21, 1942, required that Edwards and Sharp land their aircraft, a Sikorsky S-39 single-engine amphibian piloted by Sharp, in 8- to 10-foot-high swells, which crushed the left pontoon. So, to get back to Base 2, Edwards accomplished a daring feat by climbing out onto the right wing and using his weight to level the plane. He clung there, half-frozen, through the night until early the next day when a Coast Guard boat water-taxied the unflyable aircraft to shore.

Though Edwards and Sharp were the first civilians to receive the Air Medal, they were joined by others from their own ranks. In 1948, 824 Air Medals were presented to CAP members.

The coastal patrols stood down in Aug. 31, 1943, but the fledgling organization’s other World War II missions continued. While Air Medals were issued for some of those participating in the coastal patrols, little other recognition was forthcoming for the myriad of humanitarian services CAP’s volunteers provided during the war.

“We who served asked for nothing in return and got nothing,” said former U.S. Rep. Lester Wolff, D-N.Y., who commanded a CAP squadron based at Mitchell Field on Long Island, N.Y., during World War II.

Often, “it was a perilous task,” Wolff said, recalling the loss of one of his squadron members. Remember; many of these civilian planes, though not built specifically for the task, had bombs and depth charges strapped to them.

Sixty-eight CAP members died — 26 of them lost at sea — as a result of the war effort.

CAP Col. Robert Arn flew anti-sub missions out of Coastal Patrol Base No. 14 in Panama City, Fla., from September 1942 to June 1943. Of the 12 original pilots he served with at Panama City, “we lost six of them,” said Arn, who flew 179 missions totaling 557 hours of flight time over the Gulf of Mexico.

“I think with the aircraft we had, which weren’t built to go out over the Gulf of Mexico, we were able to do a job and do it well,” he said.

“So many people forget that our little effort contributed so much,” especially in terms of providing protection for shipping, said Wolff.

The coastal patrol service helped force the German Navy to move further offshore. It was a significant result from a newly formed civilian organization.

The success of the coastal patrols spawned other missions on behalf of the war effort with thousands more joining the cause. Forest fire patrols, disaster relief, medical evacuation, radar training missions and observation flights to check the effectiveness of blackouts, industrial camouflage and smokescreens were but a handful of the other operations completed by the CAP. 

Nationwide, CAP quickly established itself as a vital resource to the military and communities across the nation. These included 20,500 missions involving towing aerial gunnery targets for live-fire antiaircraft gunnery training and nighttime tracking missions for searchlights.

Along the Rio Grande, CAP aircraft flew 30,000 hours to prevent illegal border crossings and report any unusual activities. A courier service serving three major Army Air Forces commands carried over 3.5 million pounds of cargo, flying more than 20,000 miles daily. A search and rescue service used CAP air and ground units to searching isolated mountains and forested terrain for lost military aircraft.

The citizens who served in CAP came from all walks of life. Some were rich, bringing along their own planes. Others were not, but they all had a common thread: They were all volunteers eager to serve their country.

Their ranks, more than 200,000 strong at war’s end, included not only ordinary men, women and teenagers in communities throughout the country but also such prominent figures as a noted Hollywood director and a world-famous pianist, a Munchkin from “The Wizard of Oz” and a sitting state governor, a storied Wall Street financier and a pioneering African-American female aviator, future Tuskegee Airmen, the head of a major brewery and founder of a famous doughnut chain.

Notably, Civil Air Patrol served as a pioneering opportunity for the nation’s women to serve the nation in uniform. Through CAP, countless women wore a uniform on behalf of their nation, representing a catalyst for increasing female participation in civil aviation. More than half of the Women’s Airforce Service Pilots (WASP) served in CAP during some part of the war. So did many of the members of the Women’s Army Corps (WAC), Women Accepted for Volunteer Emergency Service (WAVES) and the Marine Corps Women’s Reserve.

By 1944, one in four members of Civil Air Patrol was a woman, and they were flying important inland missions.

Beginning in October 1942, a CAP cadet program allowed young men and women from 15 to 18 to serve in the organization. The cadet program extended the benefits of the senior program and prepared many young men and women through CAP training for military service. In 1943, CAP worked with the Army Air Forces to recruit aviation cadets and allowed 17-year-old members of the Air Corps Enlisted Reserve to receive CAP training while awaiting call-up to active military duty.

By war’s end, over 80,000 young Americans had served in CAP, providing the Army Air Forces with a pool of pilots and aircrew for the latter stages of the war and the postwar military. 

CAP’s success with coastal patrol and other military-supported operations contributed to its transfer by executive order in April 1943 from the Office of Civilian Defense to the War Department. As the auxiliary force of the Army Air Forces, CAP flew more than 750,000 hours with a total loss of 68 members and about 150 aircraft — a credit to the organization’s emphasis on organization and safety. 

So hats off to Civil Air Patrol! Well, not exactly.

That recognition would come later — 70 years, to be exact.

“I personally never gave it any more thought after the war,” said Col. Steve Patti, who joined CAP in January 1942 and was stationed at Vail Field in Los Angeles. For five months he was assigned to the 12th Task Force Anti-Submarine Patrol in Brownsville and San Benito, Texas, as an aircraft mechanic. He also flew as a replacement observer on convoy escort, anti-sub, beach and border patrols, and later served at bases in Marfa and El Paso, Texas.

 “We did our job every day and we asked for nothing,” he said. At the time, “there was no thought of recognition; there was only the thought of getting the job done.”

Patti and the other CAP volunteers who performed this highly unusual and extraordinary service, during a time of great need for the United States, just carried on with their lives after the war, not really expecting payback.

At least until 2014, when the U.S. House of Representatives followed the Senate’s lead and approved legislation to present the Congressional Gold Medal — the country’s highest civilian honor — to Civil Air Patrol for its World War II service.

“Time is catching up, and at least there is still time for some of us to smell the flowers,” said Wolff.

“It’s a great honor to be brought into the limelight of recognition,” said Patti.

Wolff made the trip to Washington, D.C., where the medal was presented. If fact, he was on stage with the leaders of Congress and CAP’s national commander, Maj. Gen. Joe Vazquez, accepting on behalf of the men and women of CAP who served during World War II. Unfortunately, a lot of their colleagues from CAP’s earliest days were not. Most of them have passed, and less than 100 are still living today.

Regardless, their mission continues, even today. Because they were such an incredible force, their story will not be forgotten. These pioneering members of CAP forged the path of an army of today’s volunteers that now serve as one of the nation’s premier humanitarian service organizations.

As the Air Force auxiliary, CAP provides essential emergency, operational and public service to all 50 states and more than 1,500 communities nationwide, as well as the federal government and the military. And, like their CAP counterparts, today’s members are equal to any task, willing to risk life and limb in their missions for America. They, too, are courageous. And, they also perform amazing feats, much like their forefathers — saving lives, finding the lost, helping in times of disaster and working to keep the homeland safe.

The legacy of those brave, heroic subchasers from World War II lives on.

Stinson HW-75, or 105 Voyager airplane. The design was later modified to the L-5 Sentinel for the war. Civil Air Patrol Base, Bar Harbor, Maine. Ground crew making a routine overhaul of a patrol plane, Coastal Patrol #20, June 1943.

Stinson HW-75, or 105 Voyager airplane. The design was later modified to the L-5 Sentinel for the war. Civil Air Patrol Base, Bar Harbor, Maine. Ground crew making overhaul of a patrol plane. Coastal Patrol #20, June 1943.

Stinson HW-75, or 105 Voyager airplane. Civil Air Patrol Base, Bar Harbor, Maine, June 1943.

Civil Air Patrol, Coastal Patrol base #20, Bar Harbor, Maine. A pilot sits in the cockpit of a Stinson 105. June 1943.

Civil Air Patrol, Coastal Patrol base #20, Bar Harbor, Maine. A Stinson 105 receives a routine overhaul. June 1943.

 

Civil Air Patrol Base, Bar Harbor, Maine. Flight line of Coastal Patrol #20. From left to right: two Stinson 105s, Waco YKS-6, Stinson Reliant SR-5A, and Fairchild 24 C8C. June 1943.

Civil Air Patrol, Coastal Patrol base #20, Bar Harbor, Maine. Two Stinson 105 aircraft in a hangar. June 1943.

Civil Air Patrol, Coastal Patrol base #20, Bar Harbor, Maine. A Stinson 105 on the flight line, engine running. June 1943.

Civil Air Patrol Base, Bar Harbor, Maine. Stinson 105 taking off. June 1943.

Douglas B-23 Dragon: American Medium Bomber

Douglas B-23 Dragon US Army Air Corps.

The Douglas B-23 Dragon is an American twin-engined bomber developed by the Douglas Aircraft Company as a successor to the B-18 Bolo. 

The B-23s were primarily relegated to training duties, although 18 of them were later converted as transports and redesignated UC-67.

Douglas B-23 Dragon (39-27 c/n 2713) US Army Air Corps.

A B-23 is in the background of this wartime poster encouraging production workers.

Douglas B-23 Dragon. (Preliminary Handbook of Service Instructions for the Model B-23 Bombardment Airplane, T.O. No. 01-40EC-2. Datyon, Ohio: Materiel Division, Field Service Section, Wright Field, 1940)
 

 Douglas B-23 Dragon.

Douglas B-23 Dragon tail code 63 10AB of the 10th Base Headquarters and Air Base Squadron (later 10th Air Base Group).

 Douglas B-23 Dragon aerial pick-up test over a CG-3A glider on April 28, 1943.

 Douglas B-23 Dragon tail code 94 MD in flight. Assigned to the Materiel Division at Wright Field.

A USAAF Douglas B-23 Dragon (s/n 39-03?) dropping a bomb during a training flight in the U.S. in 1942. (Library of Congress's Prints and Photographs Division ID fsa.8b13103)

Douglas B-23 Dragon.

 Douglas RB-23 of the USAAF, taken at Bicycle Lake, Calif. whilst assigned to Muroc Lake Army Air Base, 7 October 1942.

Douglas B-23 Dragon tail code 94 MD in flight. Assigned to the Materiel Division at Wright Field.

Seversky BT-8: American Basic Trainer

Seversky BT-8 trainer aircraft.

The BT-8 was derived from the Seversky SEV-3 seaplane which first flew in June 1933. The BT-8 was a land aircraft and a predecessor to the Seversky P-35—a precursor to the P-43 Lancer (itself a predecessor to the famous P-47 Thunderbolt). A total of 30 BT-8s were produced for the U.S. Army Air Corps. 

Seversky BT-8 basic trainer.


Japanese Heavy Cruiser Furutaka

Heavy cruiser Furutaka on speed trials after reconstruction off Ugurujima, 9 June 1939. The main gun director and rangefinder tower on the top of the bridge had not yet been installed. (Colorized)

Furutaka was the lead ship in the two-vessel Furutaka-class of heavy cruisers in the Imperial Japanese Navy. The ship was named after Mount Furutaka, located on Etajima, Hiroshima, immediately behind the Imperial Japanese Navy Academy. She was commissioned in 1926 and was sunk 12 October 1942 by USS Salt Lake City and USS Buchanan at the Battle of Cape Esperance.  

Furutaka's original appearance, 1926. (Colorized)

Furutaka and Kinugasa seen from Kako in the Strait of Bungo, October 1941. (Colorized)

Furutaka at anchor off Shinagawa, Japan, on 4-10 October 1935. The three bands painted on her after smokestack signify that she is the third ship of the 6th Sentai (squadron). The cruisers Aoba and Kinugasa, also members of Sentai 6, are in the left distance. (Naval History & Heritage Command NH 75481)

Heavy cruiser Furutaka off Nagasaki shortly after commissioning. 1926.

120mm/45 10th Year Type gun of the Imperial Japanese Navy in the single mount B2 Model on board of heavy cruiser Kako. This is no. 2 mount (forward, port), looking aft. Behind 120mm mount there's part of lattice tower of the 110cm searchlight and davit. In background are heavy cruisers Furutaka (middle) a Kinugasa (right). Picture was taken after 1937 refit in years 1939-1942.

Heavy cruiser Furutaka with heavy cruiser Kinugasa in background, 1941. According to installation of degaussing cables, three white stripes on forward funnel and two E7K2 on board this picture should be taken in early November 1941. Note the main gun fire command room and rangefinder room installed on the top of the bridge.

A shot taken from the heavy cruiser Kako during an Imperial Japanese Navy fleet review, 11 October 1940; the heavy cruiser Furutaka is behind her. Anchored in the first row (closest to farthest) lies the heavy cruisers Kumano, Suzuya, Mogami, Tone, and Chikuma, then the destroyers Kagero, Oshio, Asashio, and Arashio. Several more destroyers are anchored ahead, but are too blurry to note any features.

Furutaka is refueling from the tanker Tsurumi, 1935.

Furutaka class cruiser, starboard view, 1941. Halftone copy from the files of the Department of Naval Intelligence, June 1943. Courtesy of the Library of Congress. [The aircraft are all fake; the same drawing of an aircraft was used multiple times, some smaller than others to give the impression of distance.]

Furutaka underway, 1926, after her smokestacks were raised. (Naval History & Heritage Command NH 97700)

Heavy cruiser Furutaka in 1933 after 1932/33 reconstruction with new 120mm AA cannons and catapult installed. The crew is rendering honors on deck and superstructure.

IJN's heavy cruiser Furutaka off Yokohama on 2 May 1926.

Furutaka, 17 April 1928.

Furutaka, 1926.

Furutaka, 1926.

Furutaka photographed 5 April 1926 off Nagasaki, soon after completion and before any modifications had been made. The original print, with a vertical seam in the center as clipped from a publication, came from Office of Naval Intelligence files.

Furutaka photograph taken in 1927-29, when she was the fourth ship of the Fifth Sentai (squadron), as indicated by the white stripes painted on her after smokestack. Identification of this view is based on funnel bands and the appearance of the ship, as she was prior to her 1931-33 refit.

Furutaka photographed circa 1927-28, while she was the fourth ship of the Fifth Sentai (squadron), as signified by the two bands (one wide, one narrow) painted on her after smokestack.

Furutaka probably 1930-1932. Heightened forward funnels dates this picture after 1926/27 modification, missing take off platform dates this picture after 1929/30 and missing AAA platform on the side of the bridge and long cover of bridge ventilation dates this picture before 1932.

World War II-era recognition drawings, showing Furutaka as she was after her late 1930s modernization.

Furutaka as built in 1926.

U.S. Navy recognition drawings of Japanese cruisers Furutaka, Kako, Kinugasa, and Aoba, circa 1930s.

Furutaka 1942.

US Navy recognition drawings of Japanese cruisers Kako and Furutaka, late 1930s or early 1940s.