Boeing B-17 Flying Fortress facts for kids

Quick facts for kids B-17 Flying Fortress
A B-17G performing at the 2014 Chino Airshow
Role	Heavy bomber
National origin	United States
Manufacturer	Boeing
First flight	28 July 1935; 88 years ago (1935-07-28)
Introduction	April 1938; 86 years ago (1938-04)
Retired	1968 (Brazilian Air Force)
Primary users	United States Army Air Forces Royal Air Force
Produced	1936–1945
Number built	12,731
Unit cost	US$238,329 (1945) US$2.9 million (in 2021 dollars)
Variants	XB-38 Flying Fortress YB-40 Flying Fortress C-108 Flying Fortress
Developed into	Boeing 307 Stratoliner

The Boeing 17 Flying Fortress was a heavy bomber, that was used by the United States Strategic Air Force during World War II. It first flew in 1935, and was introduced in 1938. It had a shorter range, and a smaller bomb load, than its sister bomber the B-24 Liberator, but it had more defensive armament. It dropped large amounts of bombs during air raids against Germany, such as the raid on Dresden. The B-17 was also used in the Pacific, including the Battle of Midway. The Flying Fortress had its name for a good reason, it could survive the hits, being able to fly while under intense enemy fire. The B-17 was a heavy bomber plane that carried 2 tons of bombs. Although the Flying Fortress shot down many opposing fighters they also took a beating. Later in WWII, the U.S. increased escort fighters for the bombers giving more protection. The escort fights flew until the end of WWII.

The B-17 dropped more bombs than any other U.S. aircraft in World War II. Of approximately 1.5 million tons of bombs dropped on Nazi Germany and its occupied territories by U.S. aircraft, over 640 000 tons (42.6%) were dropped from B-17s. In addition to its role as a bomber, the B-17 was also employed as a transport, antisubmarine aircraft, drone controller, and search-and-rescue aircraft.

As of October 2019, nine aircraft remain airworthy, though none of them were ever flown in combat. Dozens more are in storage or on static display. The oldest of these is a D-series flown in combat in the Pacific on the first day of the United States' involvement in World War II.

Operational history

Boeing B-17E Flying Fortress of the 19th Bombardment Group USAAF, summer 1942

B-17 Flying Fortresses from the 398th Bombardment Group flying a bombing mission to Neumünster, Germany, on 13 April 1945.

The B-17 began operations in World War II with the Royal Air Force (RAF) in 1941, and in the Southwest Pacific with the U.S. Army. The 19th Bombardment Group had deployed to Clark Field in the Philippines a few weeks before the Japanese attack on Pearl Harbor as the first of a planned heavy bomber buildup in the Pacific. Half of the group's B-17s were wiped out on 8 December 1941 when they were caught on the ground during refueling and rearming for a planned attack on Japanese airfields on Formosa. The small force of B-17s operated against the Japanese invasion force until they were withdrawn to Darwin, in Australia's Northern Territory. In early 1942, the 7th Bombardment Group began arriving in Java with a mixed force of B-17s and LB-30/B-24s. A squadron of B-17s from this force detached to the Middle East to join the First Provisional Bombardment Group, thus becoming the first American B-17 squadron to go to war against the Germans. After the defeat in Java, the 19th withdrew to Australia, where it continued in combat until it was sent home by General George C. Kenney when he arrived in Australia in mid-1942. In July 1942, the first USAAF B-17s were sent to England to join the Eighth Air Force. Later that year, two groups moved to Algeria to join Twelfth Air Force for operations in North Africa. The B-17s were primarily involved in the daylight precision strategic bombing campaign against German targets ranging from U-boat pens, docks, warehouses, and airfields to industrial targets such as aircraft factories. In the campaign against German aircraft forces in preparation for the invasion of France, B-17 and B-24 raids were directed against German aircraft production while their presence drew the Luftwaffe fighters into battle with Allied fighters.

During World War II, the B-17 equipped 32 overseas combat groups, inventory peaking in August 1944 at 4,574 USAAF aircraft worldwide. The British heavy bombers, the Avro Lancaster and Handley Page Halifax, dropped 608,612 long tons (681,645 short tons) and 224,207 long tons (251,112 short tons) respectively.

Postwar history

U.S. Air Force

BQ-17 Flying Fortress drones over New Mexico, April 1946

Following the end of World War II, the B-17 was quickly phased out of use as a bomber and the Army Air Forces retired most of its fleet. Flight crews ferried the bombers back across the Atlantic to the United States where the majority were sold for scrap and melted down, although significant numbers remained in use in second-line roles such as VIP transports, air-sea rescue and photo-reconnaissance. Strategic Air Command (SAC), established in 1946, used reconnaissance B-17s (at first called F-9 [F for Fotorecon], later RB-17) until 1949.

SB-17G of the USAF 5th Rescue Squadron c. 1950

The USAF Air Rescue Service of the Military Air Transport Service (MATS) operated B-17s as so-called "Dumbo" air-sea rescue aircraft. Work on using B-17s to carry airborne lifeboats had begun in 1943, but they entered service in the European theater only in February 1945. They were also used to provide search and rescue support for B-29 raids against Japan. About 130 B-17s were converted to the air-sea rescue role, at first designated B-17H and later SB-17G. Some SB-17s had their defensive guns removed, while others retained their guns to allow use close to combat areas. The SB-17 served through the Korean War, remaining in service with USAF until the mid-1950s.

In 1946, surplus B-17s were chosen as drone aircraft for atmospheric sampling during the Operation Crossroads atomic bomb tests, being able to fly close to or even through the mushroom clouds without endangering a crew. This led to more widespread conversion of B-17s as drones and drone control aircraft, both for further use in atomic testing and as targets for testing surface-to-air and air-to-air missiles. One hundred and seven B-17s were converted to drones. The last operational mission flown by a USAF Fortress was conducted on 6 August 1959, when a DB-17P, serial 44-83684 , directed a QB-17G, out of Holloman Air Force Base, New Mexico, as a target for an AIM-4 Falcon air-to-air missile fired from a McDonnell F-101 Voodoo. A retirement ceremony was held several days later at Holloman AFB, after which 44-83684 was retired. It was subsequently used in various films and in the 1960s television show 12 O'Clock High before being retired to the Planes of Fame aviation museum in Chino, California. Perhaps the most famous B-17, the Memphis Belle, has been restored – with the B-17D The Swoose under way – to her World War II wartime appearance by the National Museum of the United States Air Force at Wright-Patterson Air Force Base, Ohio.

U.S. Navy and Coast Guard

Under project Cadillac II, an AN/APS-20 radar was fitted onto the B-17G, making the PB-1W one of the first Airborne early warning aircraft.

During the last year of World War II and shortly thereafter, the United States Navy (USN) acquired 48 ex-USAAF B-17s for patrol and air-sea rescue work. The first two ex-USAAF B-17s, a B-17F (later modified to B-17G standard) and a B-17G were obtained by the Navy for various development programs. At first, these aircraft operated under their original USAAF designations, but on 31 July 1945 they were assigned the naval aircraft designation PB-1, a designation which had originally been used in 1925 for the Boeing Model 50 experimental flying boat.

Thirty-two B-17Gs were used by the Navy under the designation PB-1W, the suffix -W indicating an airborne early warning role. A large radome for an S-band AN/APS-20 search radar was fitted underneath the fuselage and additional internal fuel tanks were added for longer range, with the provision for additional underwing fuel tanks. Originally, the B-17 was also chosen because of its heavy defensive armament, but this was later removed. These aircraft were painted dark blue, the standard Navy paint scheme which had been adopted in late 1944. PB-1Ws continued in USN service until 1955, gradually being phased out in favor of the Lockheed WV-2 (known in the USAF as the EC-121, a designation adopted by the USN in 1962), a military version of the Lockheed 1049 Constellation commercial airliner.

The U.S. Coast Guard PB-1G carried a droppable lifeboat.

In July 1945, 16 B-17s were transferred to the Coast Guard via the Navy; these aircraft were initially assigned U.S. Navy Bureau Numbers (BuNo), but were delivered to the Coast Guard designated as PB-1Gs beginning in July 1946. Coast Guard PB-1Gs were stationed at a number of bases in the U.S. and Newfoundland, with five at Coast Guard Air Station Elizabeth City, North Carolina, two at CGAS San Francisco, two at NAS Argentia, Newfoundland, one at CGAS Kodiak, Alaska, and one in Washington state. They were used primarily in the "Dumbo" air-sea rescue role, but were also used for iceberg patrol duties and for photo mapping. The Coast Guard PB-1Gs served throughout the 1950s, the last example not being withdrawn from service until 14 October 1959.

Special operations

B-17s were used by the CIA front companies Civil Air Transport, Air America and Intermountain Aviation for special missions. These included B-17G 44-85531, registered as N809Z. These aircraft were primarily used for agent drop missions over the People's Republic of China, flying from Taiwan, with Taiwanese crews. Four B-17s were shot down in these operations.

In 1957 the surviving B-17s had been stripped of all weapons and painted black. One of these Taiwan-based B-17s was flown to Clark Air Base in the Philippines in mid-September, assigned for covert missions into Tibet.

On 28 May 1962, N809Z, piloted by Connie Seigrist and Douglas Price, flew Major James Smith, USAF and Lieutenant Leonard A. LeSchack, USNR to the abandoned Soviet arctic ice station NP 8, as Operation Coldfeet. Smith and LeSchack parachuted from the B-17 and searched the station for several days. On 1 June, Seigrist and Price returned and picked up Smith and LeSchack using a Fulton Skyhook system installed on the B-17. N809Z was used to perform a Skyhook pick up in the James Bond movie Thunderball in 1965. This aircraft, now restored to its original B-17G configuration, was on display in the Evergreen Aviation & Space Museum in McMinnville, Oregon until it was sold to the Collings Foundation in 2015.

Operators

Military operators of the B-17

Civil operators of the B-17

The B-17, a versatile aircraft, served in dozens of USAAF units in theaters of combat throughout World War II, and in other roles for the RAF. Its main use was in Europe, where its shorter range and smaller bombload relative to other aircraft did not hamper it as much as in the Pacific Theater. Peak USAAF inventory (in August 1944) was 4,574 worldwide.

Surviving aircraft

Forty-six planes survive in complete form, nine of which are airworthy, and 39 of which reside in the United States.

Fortresses as a symbol

The B-17's capacity to repel enemy attacks and still inflict heavy damage upon German military capability and production centers is rendered in this caricature.

The B-17 Flying Fortress became symbolic of the United States of America's air power. In a 1943 Consolidated Aircraft poll of 2,500 men in cities where Consolidated advertisements had been run in newspapers, 73% had heard of the B-24 and 90% knew of the B-17.

After the first Y1B-17s were delivered to the Army Air Corps 2nd Bombardment Group, they were used on flights to promote their long range and navigational capabilities. In January 1938, group commander Colonel Robert Olds flew a Y1B-17 from the U.S. east coast to the west coast, setting a transcontinental record of 13 hours 27 minutes. He also broke the west-to-east coast record on the return trip, averaging 245 mph (394 km/h) in 11 hours 1 minute. Six bombers of the 2nd Bombardment Group took off from Langley Field on 15 February 1938 as part of a goodwill flight to Buenos Aires, Argentina. Covering 12,000 miles (19,000 km) they returned on 27 February, with seven aircraft setting off on a flight to Rio de Janeiro, Brazil, three days later. In a well-publicized mission on 12 May of the same year, three Y1B-17s "intercepted" and took photographs of the Italian ocean liner SS Rex 610 miles (980 km) off the Atlantic coast.

Many pilots who flew both the B-17 and the B-24 preferred the B-17 for its greater stability and ease in formation flying. The electrical systems were less vulnerable to damage than the B-24's hydraulics, and the B-17 was easier to fly than a B-24 when missing an engine. During the war, the largest offensive bombing force, the Eighth Air Force, had an open preference for the B-17. Lieutenant General Jimmy Doolittle wrote about his preference for equipping the Eighth with B-17s, citing the logistical advantage in keeping field forces down to a minimum number of aircraft types with their individual servicing and spares. For this reason, he wanted B-17 bombers and P-51 fighters for the Eighth. His views were supported by Eighth Air Force statisticians, whose mission studies showed that the Flying Fortress's utility and survivability was much greater than those of the B-24 Liberator. Making it back to base on numerous occasions, despite extensive battle damage, the B-17's durability became legendary; stories and photos of B-17s surviving battle damage were widely circulated during the war. Despite an inferior performance and smaller bombload than the more numerous B-24 Liberators, a survey of Eighth Air Force crews showed a much higher rate of satisfaction with the B-17.

Technical data (Boeing B-17 Flying Fortress)

Notable B-17s

The severely damaged All American continues to fly after collision with an attacking Bf 109 fighter, eventually landing without crew injuries.

• All American – This B-17F survived having her tail almost cut off in a mid-air collision with a Bf 109 over Tunisia but returned safely to base in Algeria.
• Chief Seattle – sponsored by the city of Seattle, she disappeared (MIA) on 14 August 1942 flying a recon mission for the 19th BG, 435th BS and the crew declared dead on 7 December 1945.
• Hell's Kitchen – B-17F 41-24392 was one of only three early B-17F's in 414th BS to complete more than 100 combat missions.
• Mary Ann – a B-17D that was part of an unarmed flight which left Hamilton Air Field, Novato, California on 6 December 1941 en route to Hickam Field in Hawaii, arriving during the attack on Pearl Harbor. The plane and her crew were immediately forced into action on Wake Island and in the Philippines during the outbreak of World War II. She became famous when her exploits were featured in Air Force, one of the first of the patriotic war films released in 1943.
• Memphis Belle – one of the first B-17s to complete a tour of duty of 25 missions in the 8th Air Force and the subject of a feature film, now completely restored and on display since 17 May 2018 at the National Museum of the U.S. Air Force at Wright-Patterson AFB in Dayton, Ohio.
• Miss Every Morning Fix'n – B-17C. Previously named 'Pamela'. Stationed in Mackay, Queensland, Australia during World War II. On 14 June 1943, crashed shortly after takeoff from Mackay while ferrying U.S. forces personnel back to Port Moresby, with 40 of the 41 people on board killed. It remains the worst air disaster in Australian history. The sole survivor, Foye Roberts, married an Australian and returned to the States. He died in Wichita Falls, Texas, on 4 February 2004.
• Murder Inc. – A B-17 bombardier wearing the name of the B-17 "Murder Inc." on his jacket was used for propaganda in German newspapers.
• Old 666 – B-17E flown by the most highly decorated crew in the Pacific Theater
• Royal Flush – B-17F 42-6087 from the 100th Bomb Group and commanded on one mission by highly decorated USAAF officer Robert Rosenthal, she was the lone surviving 100th BG B-17 of 10 October 1943 raid against Münster to return to the unit's base at RAF Thorpe Abbotts.
• Sir Baboon McGoon – B-17F featured in the June 1944 issue of Popular Science magazine and the 1945 issue of Flying magazine. Articles discuss mobile recovery crews following October 1943 belly landing at Tannington, England.
• The Swoose – Initially nicknamed Ole Betsy while in service, The Swoose is the only remaining intact B-17D, built in 1940, the oldest surviving Flying Fortress, and the only surviving B-17 to have seen action in the Philippines campaign (1941–1942); she is in the collection of the National Air and Space Museum and is being restored for final display at the National Museum of the U.S. Air Force at Wright-Patterson AFB in Dayton, Ohio. The Swoose was flown by Frank Kurtz, father of actress Swoosie Kurtz, who named his daughter after the bomber.
• Ye Olde Pub – the B-17 that was not shot down by Franz Stigler, as memorialized in the painting A Higher Call by John D. Shaw.
• 5 Grand – 5,000th B-17 made, emblazoned with Boeing employee signatures, served with the 333rd Bomb Squadron, 96th Bomb Group in Europe. Damaged and repaired after gear-up landing, transferred to 388th Bomb Group. Returned from duty following V-E Day, flown for war bonds tour, then stored at Kingman, Arizona. Following an unsuccessful bid for museum preservation, the aircraft was scrapped.

Images for kids

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  Installation of fixtures and assemblies on a tail fuselage section of a B-17 at the Douglas plant in Long Beach, California, October 1942

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  B-17Bs at March Field, California, prior to attack on Pearl Harbor, with framed nose glazing of the style retained through the B-17E model

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  Nose of a B-17G being restored at the Mighty Eighth Air Force Museum

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  Waist position gun blister of Model 299, not adopted for production

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  Boeing-built B-17Fs, with the clear-view two-piece Plexiglas bombardier's nose.

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  B-17G nose detail

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  Postwar SB-17G-95DL (ser. no. 44-83722), assigned to the 2nd ERS as a search-and-rescue aircraft, beside a Stinson L-5

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  RAF Fortress I serial AN529, with He 111H-style "bathtub" ventral gondola

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  Marks and letters on the tails of B-17 during WWII in Europe

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  B-17F formation over Schweinfurt, Germany, 17 August 1943

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  Boeing B-17F radar bombing through clouds: Bremen, Germany, on 13 November 1943

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  B-17G of the 384th Bomb Group on the bomb run

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  B-17E BO AAF S/N 41-9211 Typhoon McGoon II of the 11th BG / 98th BS, taken in January 1943 in New Caledonia: The antennae mounted upon the nose were used for radar tracking surface vessels.

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  Part of a USAAF stream of over 1,000 B-17s

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  German training model on how to attack a "flying porcupine" (fliegendes Stachelschwein)

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  "Combat boxes" of 12 B-17 during bombing missions

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  Formation flying through dense flak over Merseburg, Germany

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  B-17G-15-BO Wee Willie, 322d BS, 91st BG, after direct flak hit on her 128th mission.

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  Captured B-17F-27-BO in Luftwaffe markings, the USAAF-named "Wulfe-Hound", 41-24585, of the 360th BS/303rd BG, was downed on 12 December 1942 near Leeuwarden, Netherlands, while on a raid on Rouen, France. The first Flying Fortress to fall intact into German hands, it was operated by Kampfgeschwader 200 from March 1944.

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  This captured USAAF Boeing B-17D, in Japanese livery, was flown to Japan for technical evaluation

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  Maynard H. Smith receiving Medal of Honor from Secretary of War Henry L. Stimson

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  Forrest L. Vosler receiving Medal of Honor from President Roosevelt

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  L–R, Nancy Love, pilot and Betty (Huyler) Gillies, co-pilot, the first women to fly the Boeing B-17 Flying Fortress heavy bomber for the WASP

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  3-view projection of a B-17G, with inset detail showing the "Cheyenne tail" and some major differences with other B-17 variants

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  B-17G nose guns

See also

In Spanish: Boeing B-17 Flying Fortress para niños