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Boeing XF8B-1

Boeing XF8B-1

     
Název:
Name:
Boeing XF8B-1
Originální název:
Original Name:
Boeing XF8B-1
Kategorie:
Category:
stíhací-bombardovací letoun
Výrobce:
Producer:
DD.MM.1944-DD.MM.194R Boeing Aircraft Co., Seattle, Washington
Období výroby:
Production Period:
DD.MM.1944-DD.MM.194R
Vyrobeno kusů:
Number of Produced:
3
První vzlet:
Maiden Flight:
17.11.1944
Osádka:
Crew:
1
Základní charakteristika:
Basic Characteristics:
 
Vzlet a přistání:
Take-off and Landing:
CTOL - konvenční vzlet a přistání
Uspořádání křídla:
Arrangement of Wing:
jednoplošník
Uspořádání letounu:
Aircraft Concept:
klasické
Podvozek:
Undercarriage:
zatahovací
Přistávací zařízení:
Landing Gear:
kola
Technické údaje:
Technical Data:
 
Hmotnost prázdného letounu:
Empty Weight:
6436 kg
Vzletová hmotnost:
Take-off Weight:
9302 kg
Maximální vzletová hmotnost:
Maximum Take-off Weight:
? kg
Rozpětí:
Wingspan:
16.46 m
Délka:
Length:
13.18 m
Výška:
Height:
4.95 m
Plocha křídla:
Wing Area:
45.43 m2
Plošné zatížení:
Wing Loading:
? kg/m2
Pohon:
Propulsion:
 
Kategorie:
Category:
pístový
Počet motorů:
Number of Engines:
1
Typ:
Type:
Pratt & Whitney R-4360-10 so vzletovým výkonom 2237 kW
Objem palivových nádrží:
Fuel Tank Capacity:
?
Výkony:
Performance:
 
Maximální rychlost:
Maximum Speed:
695.2 km/h v 11125 m
Cestovní rychlost:
Cruise Speed:
305.8 km/h v ? m
Rychlost stoupání:
Climb Rate:
18.6 m/s
Čas výstupu na výšku:
Time to Climb to:
? min do ? m
Operační dostup:
Service Ceiling:
11430 m
Dolet:
Range:
5632.7 km
Maximální dolet:
Maximum Range:
? km
Výzbroj:
Armament:
6x guľomet ráže 12.7 mm alebo 6x kanón ráže 20 mm

4x 227kg nebo 2x 726kg bomba v pumovnici
2x 227kg, 454kg nebo 726kg bomba pod křídly
Uživatelské státy:
User States:
Poznámka:
Note:
-
Zdroje:
Sources:
Bowers, Peter M. Boeing Aircraft since 1916. London, Putnam 1989. ISBN 0-85177-804-6.
URL : https://www.valka.cz/Boeing-XF8B-1-t18254#67123Version : 0

Boeing XF8B




History




On November 17, 1944, the prototype Boeing XF8B-1 airborne fighter aircraft took to the air for the first time. The emergence and development of the aircraft brought several interesting facts worth recalling.


Starting with the famous Boeing P-26 Peashooter, the aircraft that ushered in the era of monoplanes in the early 1930s, the Boeing Model 400 was again a fighter after a series of successful bomber aircraft. Its creation was driven by the Naval Air Forces SD-349 technical specifications. With the release of these specifications in 1943, the U.S. Navy made its official request for a very long-range fighter aircraft, the size of the new fighter was similar to that of torpedo planes of the time.

The new fighter's high performance was to be provided by a massive twenty-eight-cylinder Pratt & Whitney R-4360 engine with 3,000 horsepower. The engine's power was to be transmitted by counter-rotating three-bladed propellers made by Curtiss or Aeroproducts. On 10 April 1943, the Navy handed Boeing an order to build three prototypes, already designated XF8B-1.


However, the Boeing factory did not have the necessary capacity to produce the fighter, all of its production plants were supplying bombers to the US Air Force, so small shops had to be involved in production, and this contributed to delays in development.


After conducting ground tests, the prototype flew easily and test pilot Robert Lamson noted that the aircraft had pleasing flight characteristics, the engine was well tuned and caused no problems, but the large forces required to control the ailerons, folding the wings back behind the aircraft, and the oil cooler still had to be relocated caused problems.


The airplane was modified, the wings were raised up and Boeing installed a seat behind the pilot's seat for an engineer to monitor the airplane's systems during flight tests. The technician had been flying since January 1945. Testing was conducted primarily at Patuxent River Airport in Maryland, and practice dogfights with the P-59 Airacomet and the F7F Tigercat were also conducted there, with the second and third prototypes also involved in the tests.


From February 1946, the aircraft was also tested by USAAF pilots at its Wright Field base; the Army Air Force was looking for a fighter bomber at the time, and up to 1,450 kg of bombs could be hung under the Boeing aircraft. However, by the late 1940s, jet-powered aircraft were no longer in demand, and the piston-engined aircraft was scrapped in early 1948, with the first and second prototypes being scrapped in early 1948, followed by the third prototype in 1950.


Sources used:
William Green:″War Planes of the Second World War - Fighters″ Volume 4. Macdonald, London; 1961
Václav Němeček: "Vojenská letadla vol. 3"; Naše vojsko Praha year 1992; 3rd edition; ISBN 80-206-0117-1
L+K 5/1997; Václav Němeček Aircraft 39-45
https://www.samoloty.ow.pl/str041.htm
https://www.boeing.com/history/boeing/xf8b1.html
www.daveswarbirds.com
www.strangemilitary.com
https://en.wikipedia.org/wiki/Boeing_XF8B
steeljawscribe.blogspot.com
author archive
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Boeing XF8B
Boeing XF8B-1 -


URL : https://www.valka.cz/Boeing-XF8B-1-t18254#67124Version : 0
Photos of Boeing XF8B-1 from the test period
sources listed above
Boeing XF8B-1 -


Boeing XF8B-1 -


Boeing XF8B-1 -


Boeing XF8B-1 -


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