Grumman TBF Avenger

The Grumman TBF Avenger (designated TBM[1] for aircraft manufactured by General Motors) is an American World War II-era torpedo bomber developed initially for the United States Navy and Marine Corps, and eventually used by several air and naval aviation services around the world.

TBF/TBM Avenger
General Motors TBM-3E Avenger warbird, 2014
Role Torpedo bomber
National origin United States
Manufacturer Grumman
Built by General Motors
First flight 7 August 1941
Introduction 1942
Retired 1960s
Status Retired
Primary users United States Navy
Royal Navy
Royal Canadian Navy
Royal New Zealand Air Force
Number built 9,839

The Avenger entered U.S. service in 1942, and first saw action during the Battle of Midway. Despite the loss of five of the six Avengers on its combat debut, it survived in service to become the most effective[2] and widely-used torpedo bomber of World War II, sharing credit for sinking the super-battleships Yamato and Musashi and being credited for sinking 30 submarines. Greatly modified after the war, it remained in use until the 1960s.[3]

Design and development
A Grumman TBM (GM-built TBF) with Sto-Wing folding wings
TBF-1 Avenger early in 1942. Note the red spot centered in the U.S. roundel and flag-inspired fin flash on the rudder, both of which were removed prior to the Battle of Midway to avoid confusion with Japanese insignia.
TBF Avenger in mid-1942

The Douglas TBD Devastator, the U.S. Navy's main torpedo bomber introduced in 1935, was obsolete by 1939. Bids were accepted from several companies, but Grumman's TBF design was selected as the replacement for the TBD and in April 1940 two prototypes were ordered by the Navy. Designed by Leroy Grumman, the first prototype was called the XTBF-1.[4] It was first flown on 7 August 1941. Although one of the first two prototypes crashed near Brentwood, New York, rapid production continued.

The Avenger was the heaviest single-engined aircraft of World War II, and only the USAAF's P-47 Thunderbolt came close to equalling it in maximum loaded weight among all single-engined fighters, being only some 400 pounds (180 kg) lighter than the TBF, by the end of World War II. To ease carrier storage concerns, simultaneously with the F4F-4 model of its Wildcat carrier fighter, Grumman designed the Avenger to also use the new Sto-Wing patented "compound angle" wing-folding mechanism, intended to maximize storage space on an aircraft carrier; the Wildcat's replacement, the F6F Hellcat, also employed this mechanism.[5] The engine used was the twin-row Wright R-2600-20 Twin Cyclone fourteen-cylinder radial engine, which produced 1,900 horsepower (1,420 kW).

There were three crew members: pilot, turret gunner and radioman/bombardier/ventral gunner. A single synchronized .30 caliber (7.62 mm) machine gun was mounted in the nose, a .50 caliber (12.7 mm) gun was mounted right next to the turret gunner's head in a rear-facing electrically powered turret, and a single 0.30 caliber (7.62 mm) hand-fired machine gun flexibly-mounted ventrally (under the tail), which was used to defend against enemy fighters attacking from below and to the rear. This gun was fired by the radioman/bombardier while standing up and bending over in the belly of the tail section, though he usually sat on a folding bench facing forward to operate the radio and to sight in bombing runs. Later models of the TBF/TBM omitted the cowl-mount synchronized 0.30 caliber (7.62 mm) gun, and replaced it with twin Browning AN/M2 0.50 caliber (12.7 mm) light-barrel guns, one in each wing outboard of the propeller arc, per pilots' requests for better forward firepower and increased strafing ability. There was only one set of controls on the aircraft, and no direct access to the pilot's position existed from the rest of the aircraft's interior. The radio equipment was massive, especially by today's standards, and filled the length of the well-framed "greenhouse" canopy to the rear of the pilot. The radios were accessible for repair through a "tunnel" along the right hand side. Any Avengers that are still flying today usually have an additional rear-mounted seat in place of the radios, allowing for a fourth passenger.

The Avenger had a large bomb bay, allowing for one Bliss-Leavitt Mark 13 torpedo, a single 2,000-pound (907 kg) bomb, or up to four 500-pound (227 kg) bombs. The aircraft had overall ruggedness and stability, and pilots say it flew like a truck, for better or worse. With its good radio facilities, docile handling, and long range, the Grumman Avenger also made an ideal command aircraft for Commanders, Air Group (CAGs). With a 30,000 ft (9,000 m) ceiling and a fully loaded range of 1,000 miles (1,600 km), it was better than any previous American torpedo bomber, and better than its Japanese counterpart, the obsolete Nakajima B5N "Kate". Later Avenger models carried radar equipment for the ASW and AEW roles.

Escort carrier sailors referred to the TBF as the "turkey" because of its size and maneuverability in comparison to the F4F Wildcat fighters in same airgroups.[6]

Operational history

U.S. Navy
TBF Avenger ready for catapult launch
A Grumman TBF Avenger aboard USS Yorktown, c. late 1943
Future American President George H. W. Bush, in a TBM Avenger on the light aircraft carrier USS San Jacinto in 1944

On the afternoon of 7 December 1941, Grumman held a ceremony to open a new manufacturing plant and display the new TBF to the public. Coincidentally, on that day, the Imperial Japanese Navy attacked Pearl Harbor, as Grumman soon found out. After the ceremony was over, the plant was quickly sealed off to guard against possible sabotage. By early June 1942, a shipment of more than 100 aircraft was sent to the Navy, arriving only a few hours after the three carriers quickly departed from Pearl Harbor, so most of them were too late to participate in the pivotal Battle of Midway.

Six TBF-1s were present on Midway Island – as part of VT-8 (Torpedo Squadron 8) – while the rest of the squadron flew Devastators from the aircraft carrier Hornet. Both types of torpedo bombers suffered heavy casualties. Out of the six Avengers, five were shot down and the other returned heavily damaged with one of its gunners killed, and the other gunner and the pilot wounded.[7]

Author Gordon Prange posited in Miracle at Midway that the outdated Devastators (and lack of new aircraft) contributed somewhat to the lack of a complete victory at Midway (the four Japanese fleet carriers were sunk directly by dive bombers instead). Others pointed out that the inexperienced American pilots and lack of fighter cover were responsible for poor showing of US torpedo bombers, regardless of type.[8] Later in the war, with growing American air superiority, better attack coordination and more veteran pilots, Avengers were able to play vital roles in the subsequent battles against Japanese surface forces.[9]

On 24 August 1942, the next major naval aircraft carrier battle occurred at the Eastern Solomons. Based on the carriers Saratoga and Enterprise, the 24 TBFs present were able to sink the Japanese light carrier Ryūjō and claim one dive bomber, at the cost of seven aircraft.

The first major "prize" for the TBFs (which had been assigned the name "Avenger" in October 1941,[10][11] before the Japanese attack on Pearl Harbor) was at the Naval Battle of Guadalcanal in November 1942, when Marine Corps and Navy Avengers helped sink the Japanese battleship Hiei, which had already been crippled the night before.

After hundreds of the original TBF-1 models were built, the TBF-1C began production. The allotment of space for specialized internal and wing-mounted fuel tanks doubled the Avenger's range. By 1943, Grumman began to slowly phase out production of the Avenger to produce F6F Hellcat fighters, and the Eastern Aircraft Division of General Motors took over production, with these aircraft being designated TBM. The Eastern Aircraft plant was located in Ewing, New Jersey. Grumman delivered a TBF-1, held together with sheet metal screws, so that the automotive engineers could disassemble it, one part at a time, and redesign the aircraft for automotive-style production. This aircraft was known as the "P-K Avenger" ("P-K" being an abbreviation for Parker-Kalon, manufacturer of sheet metal screws). Starting in mid-1944, the TBM-3 began production (with a more powerful powerplant and wing hardpoints for drop tanks and rockets). The dash-3 was the most numerous of the Avengers (with about 4,600 produced). However, most of the Avengers in service were dash-1s until near the end of the war in 1945.

Besides the traditional surface role (torpedoing surface ships), Avengers claimed about 30 submarine kills, including the cargo submarine I-52. They were one of the most effective sub-killers in the Pacific theater, as well as in the Atlantic, when escort carriers were finally available to escort Allied convoys. There, the Avengers contributed to the warding off of German U-boats while providing air cover for the convoys.

After the "Marianas Turkey Shoot", in which more than 250 Japanese aircraft were downed, Admiral Marc Mitscher ordered a 220-aircraft mission to find the Japanese task force. Fighting 300 nmi (560 km) away from the fleet at the extreme end of their range, the group of Hellcats, TBF/TBMs, and dive bombers took many casualties. However, Avengers from the Independence-class aircraft carrier USS Belleau Wood sank the light carrier Hiyō as their only major prize. Mitscher's gamble did not pay off as well as he had hoped.

In June 1943, shortly before his 19th birthday, future-president, George H. W. Bush, was commissioned as the youngest naval aviator at the time.[12] Later, while flying a TBM with VT-51 (from USS San Jacinto), his Avenger was shot down on 2 September 1944 over the Pacific island of Chichi Jima.[13] However, he released his payload and hit the radio tower target before being forced to bail out over water. Both of his crewmates died. He was rescued at sea by the American submarine USS Finback. He later received the Distinguished Flying Cross.

Another famous Avenger aviator was Paul Newman, who flew as a rear gunner. He had hoped to be accepted for pilot training, but did not qualify because he was color blind. Newman was on board the escort carrier USS Hollandia roughly 500 mi (800 km) from Japan when the Enola Gay dropped the first atomic bomb on Hiroshima.[14]

The Avenger was the type of torpedo bomber used during the sinking of the two Japanese "super battleships", with the US Navy having complete air superiority in both engagements: Musashi and Yamato.[9][15]

The postwar disappearance on 5 December 1945 of a flight of five American Avengers, known as Flight 19, was later added to the Bermuda Triangle legend, first written about by Edward Van Winkle Jones in an Associated Press article published in September 1950.[16]

During World War II, the US aeronautical research arm NACA used a complete Avenger in a comprehensive drag-reduction study in their large Langley wind tunnel.[17]

Royal Navy
Royal Navy Grumman Avenger AS.4 XB355 'CU 396' of 744 Squadron at Blackbushe in 1955

The Avenger was also used by the Royal Navy's Fleet Air Arm, where it was initially known as the "Tarpon". Initial test flights were carried out by British Admiralty test pilot Roy Sydney Baker-Falkner at RAF Boscombe Down. However, this name was later discontinued and the Avenger name used instead, as part of the process of the Fleet Air Arm universally adopting the U.S. Navy's names for American naval aircraft. The first 402 aircraft were known as Avenger Mk I, 334 TBM-1s from Grumman were called the Avenger Mk II, and 334 TBM-3 were designated the Mk III. An interesting kill by a Royal Navy Avenger was the destruction of a V-1 flying bomb on 9 July 1944. The much faster V-1 was overtaking the Avenger when the Telegraphist Air Gunner in the dorsal turret, Leading Airman Fred Shirmer, fired at it from 700 yards (640 m). For this achievement, Shirmer was Mentioned in Dispatches, later being awarded the DSM for the 1945 Operation Meridian action at Palembang.[18] In the January 1945 British carrier raid on the Soengei Gerong oil refinery during Operation Meridian, a Fleet Air Arm Avenger shot down a Nakajima Ki-44 "Tojo" in low level combat over the jungle.[19] Three Avengers were modified to carry the Highball "bouncing bomb" (given the new codename Tammany Hall), but when trials were unsuccessful, they were returned to standard configuration and passed to the Royal Navy.[20]

One hundred USN TBM-3Es were supplied to the Fleet Air Arm in 1953 under the US Mutual Defense Assistance Program. The aircraft were shipped from Norfolk, Virginia, many aboard the Royal Navy aircraft carrier HMS Perseus. The Avengers were fitted with British equipment by Scottish Aviation and delivered as the Avenger AS.4 to several FAA squadrons including No. 767, 814, 815, 820 and 824. The aircraft were replaced from 1954 by Fairey Gannets and were passed to squadrons of the Royal Naval Reserve including No. 1841 and 1844 until the RNR Air Branch was disbanded in 1957. The survivors were transferred to the French Navy in 1957–1958.

Royal New Zealand Air Force

The only other operator in World War II was the Royal New Zealand Air Force which used the type primarily as a bomber, equipping Nos. 30 and 31 Squadrons, with both operating from South Pacific island bases during 1944 in support of the Bougainville campaign. Some of the Avengers were later transferred to the British Pacific Fleet.

In 1945, Avengers were involved in pioneering trials of aerial topdressing in New Zealand that led to the establishment of an industry which markedly increased food production and efficiency in farming worldwide. Pilots of the Royal New Zealand Air Force's No. 42 Squadron spread fertilizer from Avengers beside runways at Ohakea Air Base and provided a demonstration for farmers at Hood Aerodrome, Masterton, New Zealand.[21]

Royal Canadian Navy
A Royal Canadian Navy Avenger over HMCS Magnificent

One of the primary postwar users of the Avenger was the Royal Canadian Navy, which obtained 125 former US Navy TBM-3E Avengers from 1950 to 1952 to replace their venerable Fairey Fireflies. By the time the Avengers were delivered, the RCN was shifting its primary focus to anti-submarine warfare (ASW), and the aircraft was rapidly becoming obsolete as an attack platform. Consequently, 98 of the RCN Avengers were fitted with an extensive number of novel ASW modifications, including radar, electronic countermeasures (ECM) equipment, and sonobuoys, and the upper ball turret was replaced with a sloping glass canopy that was better suited for observation duties. The modified Avengers were designated AS 3. A number of these aircraft were later fitted with a large magnetic anomaly detector (MAD) boom on the rear left side of the fuselage and were redesignated AS 3M. However, RCN leaders soon realized the Avenger's shortcomings as an ASW aircraft, and in 1954 they elected to replace the AS 3 with the Grumman S-2 Tracker, which offered longer range, greater load-carrying capacity for electronics and armament, and a second engine, a great safety benefit when flying long-range ASW patrols over frigid North Atlantic waters. As delivery of the new license-built CS2F Trackers began in 1957, the Avengers were shifted to training duties, and were officially retired in July 1960.[22]

Camouflage research

TBM Avengers were used in wartime research into counter-illumination camouflage. The torpedo bombers were fitted with Yehudi lights, a set of forward-pointing lights automatically adjusted to match the brightness of the sky. The planes therefore appeared as bright as the sky, rather than as dark shapes. The technology, a development of the Canadian navy's diffused lighting camouflage research, allowed an Avenger to advance to within 3,000 yards (2,700 m) before being seen.[23]

Civilian use

Many Avengers have survived into the 21st century working as spray-applicators and water-bombers throughout North America, particularly in the Canadian province of New Brunswick.

Forest Protection Limited (FPL) of Fredericton, New Brunswick, once owned and operated the largest civilian fleet of Avengers in the world. FPL began operating Avengers in 1958 after purchasing 12 surplus TBM-3E aircraft from the Royal Canadian Navy.[24] Use of the Avenger fleet at FPL peaked in 1971 when 43 aircraft were in use as both water bombers and spray aircraft.[24] The company sold three Avengers in 2004 (C-GFPS, C-GFPM, and C-GLEJ) to museums or private collectors. The Central New Brunswick Woodsmen's Museum has a former FPL Avenger on static display.[25] An FPL Avenger that crashed in 1975 in southwestern New Brunswick was recovered and restored by a group of interested aviation enthusiasts and is currently on display at the Atlantic Canada Aviation Museum.[26] FPL was still operating three Avengers in 2010 configured as water-bombers, and stationed at Miramichi Airport. One of these crashed just after takeoff on 23 April 2010, killing the pilot.[27][28] The last FPL Avenger was retired on 26 July 2012 and sold to the Shearwater Aviation Museum in Dartmouth, Nova Scotia.[29]

There are several other Avengers, usually flying as warbirds in private collections around the world today.[30] They are a popular airshow fixture in both flying and static displays.[31]

As of 2020, the Commemorative Air Force (CAF) flies three TBM Avengers[32] with one based with the Rocky Mountain Wing in Grand Junction, Colorado; another with the Missouri Wing at St Charles Smartt Field; and their newest with the Capital Wing in Culpeper, Virginia. Each of these allow non-CAF members to ride in the aircraft for a Living History Flight Experience.[33][34][35]

Variants
A TBF-1 dropping a torpedo
TBM-3Ds of VT(N)-90 January 1945
Six U.S. Navy Grumman TBM-3E Avenger anti-submarine aircraft of Composite Squadron VC-22 Checkmates flying over the Mediterranean Sea
Photograph of a large number of propeller-driven monoplanes dropping bombs
US Navy TBMs (foreground) and SB2C Helldivers drop bombs on Hakodate in July 1945
A TBM-3R COD plane in the early 1950s
TBM-3W
TBF Avenger Torpedo Bomber
TBM-3S2 submarine attack variant of the Royal Netherlands Navy.

TBF
XTBF-1
Prototypes each powered by a 1,700 hp (1,300 kW) R-2600-8 engine, second aircraft introduced the large dorsal fin. (2 built)
TBF-1
Initial production model based on the second prototype. (1,526 built)
TBF-1C
TBF-1 with provision for two 0.5 in (12.7 mm) wing guns and fuel capacity increased to 726 US gal (2,748 L). (765 built)
TBF-1B
Paper designation for the Avenger I for the Royal Navy.
TBF-1D
TBF-1 conversions with centimetric radar in radome on right wing leading edge.
TBF-1CD
TBF-1C conversions with centimetric radar in radome on right wing leading edge.
TBF-1E
TBF-1 conversions with additional electronic equipment.
TBF-1J
TBF-1 equipped for bad weather operations
TBF-1L
TBF-1 equipped with retractable searchlight in bomb bay.
TBF-1P
TBF-1 conversion for photo-reconnaissance
TBF-1CP
TBF-1C conversion for photo-reconnaissance
XTBF-2
TBF-1 re-engined with a 1,900 hp (1,400 kW) XR-2600-10 engine.
XTBF-3
TBF-1 re-engined with 1,900 hp (1,400 kW) R-2600-20 engines.
TBF-3
Planned production version of the XTBF-3, cancelled

TBM
TBM-1
as TBF-1. (550 built)
TBM-1C
as TBF-1C. (2336 built)
TBM-1D
TBM-1 conversions with centimetric radar in radome on right wing leading edge.
TBM-1E
TBM-1 conversions with additional electronic equipment.
TBM-1J
TBM-1 equipped for all weather operations
TBM-1L
TBM-1 equipped with retractable searchlight in bomb bay.
TBM-1P
TBM-1 conversion for photo-reconnaissance
TBM-1CP
TBM-1C conversion for photo-reconnaissance
TBM-2
One TBM-1 re-engined with a 1,900 hp (1,400 kW) XR-2600-10 engine.
XTBM-3
Four TBM-1C aircraft with 1,900 hp (1,400 kW) R-2600-20 engines.
TBM-3
as TBM-1C, double cooling intakes, engine upgrade, minor changes. (4,011 built)
TBM-3D
TBM-3 conversion with centimetric radar in radome on right wing leading edge.
TBM-3E
as TBM-3, stronger airframe, search radar, ventral gun deleted. (646 built).
TBM-3H
TBM-3 conversion with surface search radar.
TBM-3J
TBM-3 equipped for all weather operations
TBM-3L
TBM-3 equipped with retractable searchlight in bomb bay.
TBM-3M
TBM-3 conversion as a Tiny Tim rocket launcher.
TBM-3N
TBM-3 conversion for night attack.
TBM-3P
TBM-3 conversion for photo-reconnaissance.
TBM-3Q
TBM-3 conversion for electronic countermeasures, retained gun turret.[36]
TBM-3R
TBM-3 conversions as seven-passenger, Carrier onboard delivery transport.
TBM-3S
TBM-3 conversion as an anti-submarine strike version.
TBM-3U
TBM-3 conversion as a general utility and target version.
TBM-3W
TBM-3 conversion as the first ship based airborne early warning control and relay platform with AN/APS-20 radar in ventral radome.
XTBM-4
Prototypes based on TBM-3E with modified wing incorporating a reinforced center section and a different folding mechanism. (3 built)[37]
TBM-4
Production version of XTBM-4, 2,141 on order were cancelled.

Royal Navy Avenger
An 849 Squadron Avenger II from HMS Victorious (R38), 1944
Tarpon GR.I
RN designation of the TBF-1, 400 delivered.
Avenger Mk.II
RN designation of the TBM-1/TBM-1C, 334 delivered.
Avenger Mk.III
RN designation of the TBM-3, 222 delivered
Avenger Mk.IV
RN designation of the TBM-3S, 70 cancelled
Avenger AS4
RN designation of the TBM-3E, delivered postwar with minimum modifications
Avenger AS5
RN designation of the TBM-3S, delivered postwar & fitted with British equipment
Avenger AS6
RN designation of the TBM-3S, fitted with British equipment including a centerline radome. A total of one hundred TBM-3E & TBM-3S were delivered to the Royal Navy in 1953.[38]

Royal Canadian Navy Avengers
Avenger AS3
Modified by RCN for anti-submarine duty, dorsal gun turret removed, 98 built
Avenger AS3M
AS3 with magnetic anomaly detector boom added to rear fuselage
Avenger Mk.3W2
Similar to TBM-3W, with large ventral radome. 8 operated.

Operators
Canadian Avenger AS3M with long tubular magnetic anomaly detector (MAD) boom along the portside lower rear fuselage
Royal Netherlands Navy TBM-3S2 anti-submarine attack variant used on aircraft carrier Karel Doorman between 1955-1960.
A No. 30 Squadron RNZAF TBF-1C on Espiritu Santo, 1944
Japan Maritime Self-Defense Force TBM-3W
 Brazil
 Canada
 Cuba
  • Cuban Navy received 7 TBM-3S2 in 1956; however, they were out of service by 1960.
 France
 Japan
 Netherlands
 New Zealand
 Nicaragua
 United Kingdom
 United States
 Uruguay

Notable incidents
  • A famous incident involving the TBM / TBF Avenger aircraft was the disappearance of Flight 19, a training flight of five Avengers that originated from Naval Air Station Fort Lauderdale and was lost in December 1945 over the Bermuda Triangle.
  • During an airshow on 17 April 2021, TBM #91188 made a successful forced-landing south of Cocoa Beach, Florida near Patrick Space Force Base, in shallow surf.[39] Valiant Air Command, the group that owns the plane, recovered the TBM for transport to Titusville, Florida, for extensive repairs.[40]

Surviving aircraft
Main article: List of surviving Grumman TBF Avengers

Specifications (TBF Avenger)
Grumman TBF-1 Avenger drawing
Grumman TBF-1 Avenger drawing

Data from Jane's Fighting aircraft of World War II[41] Armament data from Flight Journal.com[42]

General characteristics

  • Crew: 3
  • Length: 40 ft 1⁄8 in (12.195 m)
  • Wingspan: 54 ft 2 in (16.51 m)
  • Width: 19 ft (5.8 m) folded
  • Height: 16 ft 5 in (5.00 m)
  • Wing area: 490 sq ft (46 m2)
  • Airfoil: root: NACA 23015; tip: NACA 23009[43]
  • Gross weight: 15,536 lb (7,047 kg)
  • Fuel capacity: Fuel 330 US gal (275 imp gal; 1,249 L) in three center-section integral tanks + 2x 58 US gal (48 imp gal; 220 L) droppable slipper tanks under outer wings, with provision for a jettisonable 275 US gal (229 imp gal; 1,041 L) bomb-bay ferry tank.; Oil 32 US gal (27 imp gal; 121 L)
  • Powerplant: 1 × Wright R-2600-8 Twin Cyclone 14-cylinder air-cooled radial piston engine, 1,700 hp (1,300 kW)
  • Propellers: 3-bladed Hamilton Standard constant-speed propeller

Performance

  • Maximum speed: 278 mph (447 km/h, 242 kn)
  • Cruise speed: 215 mph (346 km/h, 187 kn)
  • Range: 905 mi (1,456 km, 786 nmi) at cruise speed
  • Service ceiling: 22,600 ft (6,900 m)
  • Rate of climb: 1,075 ft/min (5.46 m/s)
  • Power/mass: 0.11 hp/lb (0.18 kW/kg)

Armament

See also

Aircraft of comparable role, configuration, and era

Related lists

References

Notes
  1. Under the 1922 United States Navy aircraft designation system in use at the time, the TB in the designation refers to its role as a torpedo bomber, F was assigned to aircraft built by Grumman, and M to those built by General Motors, G having already been assigned to the Great Lakes Aircraft Company previously.
  2. "The Grumman TBF Avenger: The Bomber That Changed the War". Pearl Harbor Visitors Bureau. Retrieved 27 October 2020.
  3. Wheeler 1992, p. 53.
  4. Tillman 1999, p. 6.
  5. Dwyer, Larry (19 February 2014). "Grumman F4F Wildcat". The Aviation History Online Museum. Retrieved 27 October 2020. The F4F-4 was the first version of the Wildcat to feature a Grumman innovation, the Sto-Wing. The Sto-Wing used a novel approach using a compound angle folding-wing that was unique to Grumman ... It was a successful design that was later used on the F6F Hellcat and TBF Avenger.
  6. O'Rourke, G. G. (July 1968). "Of Hosenoses, Stoofs, and Lefthanded Spads". Proceedings. Vol. 94, no. 7. United States Naval Institute. p. 56.
  7. Combat Intelligence Branch (1943). "Midway's Attack on the Enemy Carriers". Combat Narrative: The Battle of Midway, June 3–6 1942 (Report). U.S. Navy, Office of Naval Intelligence. p. 17. Retrieved 13 May 2021 – via HyperWar Foundation.
  8. Shepherd, Joel (2006). "1942 – Battle of Midway". USS Enterprise CV-6. Retrieved 27 October 2020.
  9. "Sinking the Supership". Nova. Season 33. Episode 3212. 4 October 2005. PBS. Retrieved 27 October 2011.
  10. Associated Press. "Fighting Names Given to Planes by the Navy". The New York Times. Vol. XCI No. 30,567, 2 October 1941, p. 17.
  11. "New Plane Names". Flying and Popular Aviation (Chicago: Ziff-Davis Publishing Company), Vol. 30 [sic], No. 1, January 1942, p. 232.
  12. "Lieutenant Junior Grade George Bush, USNR". Naval History and Heritage Command. Archived from the original on 8 January 2015.
  13. Hove 2003, p. 178.
  14. Wise, James E. Jr.; Rehill, Anne Collier (1997). Stars in Blue: Movie Actors in America's Sea Services. Annapolis, Maryland: Naval Institute Press. ISBN 1557509379. OL 668535M.
  15. Hackett, Bob; Kingsepp, Sander (2017). "IJN Battleship Musashi: Tabular Record of Movement". CombinedFleet. Retrieved 27 October 2020.
  16. E. V. W. Jones (17 September 1950). "Sea's Puzzles Still Baffle Men In Pushbutton Age". Miami Herald. Associated Press. p. 6F. Retrieved 27 October 2020 – via course material, "The Scientific Method - Critical and Creative Thinking", SMU Department of Physics.
  17. "History of Langley Research Center." NASA. Retrieved: 22 July 2011.
  18. "List of all Telegraphist Air Gunners (TAGs) receiving honours and awards whilst serving with front line squadrons, 1939–1945". Fleet Air Arm Archive. Archived from the original on 24 September 2015.{{cite web}}: CS1 maint: unfit URL (link)
  19. Iredale, W. (2015). The Kamikaze Hunters. p. 211. ISBN 9780230768192.
  20. Murray, Iain (2009). Bouncing-Bomb Man: the Science of Sir Barnes Wallis. Haynes. p. 117. ISBN 978-1-84425-588-7.
  21. Geelen 1983
  22. "Aircraft History: Grumman Avenger". Shearwater Aviation Museum. Archived from the original on 20 February 2008. Retrieved 27 October 2020.
  23. Hambling, David. "Cloak of Light Makes Drone Invisible?" Wired, 9 May 2008. Retrieved: 17 June 2012.
  24. "History: Timeline." Archived 2005-03-12 at archive.today forestprotectionlimited.com. Retrieved: 17 November 2012.
  25. "Woods Museum: Avenger." Archived 2008-04-13 at the Wayback Machine Central New Brunswick Woodsmen's Museum. Retrieved: 22 July 2011.
  26. "Avenger On Display." Canadian Aviation and Space Museum. Retrieved: 22 July 2011.
  27. "New Brunswick, June 2007." Insects. Retrieved: 22 July 2011.
  28. "Land and Sea: NB Firefighters." CBC Television, 9 December 2009.
  29. "N.B. WWII plane lands at Shearwater museum." CBC News, 26 July 2012.
  30. "Avenger." Archived 2006-06-28 at the Wayback Machine Area 51 Aviation. Retrieved: 22 July 2011.
  31. "Air Cache: TBF/TBM Avenger". Archived from the original on 14 March 2013. Retrieved 7 August 2012.
  32. "Collection / CAF Fleet". Commemorative Air Force. Retrieved 27 October 2020.
  33. "Living History Flight Experience in a WWII TBM Torpedo Bomber". Rocky Mountain Wing of the Commemorative Air Force. Retrieved 27 October 2020.
  34. "Fly With US: TBM3E "Avenger"". Missouri Wing of the Commemorative Air Force. Retrieved 27 October 2020.
  35. "Warbird Rides". Capital Wing of the Commemorative Air Force. Retrieved 27 October 2020.
  36. Morgan, Rick. "The Enigmatic TBM-3Q". Rick Morgan Books. Retrieved 21 May 2020.
  37. Rickard, J. "Eastern XTBM-4 Avenger". Military History Encyclopedia on the Web. Retrieved 18 August 2023.
  38. Francillon, Rene (1989). Grumman Aircraft since 1929. Putnam. p. 189. ISBN 0-85177-835-6.
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