Tá McDonnell XF-85 Goblin Je americký prototyp stíhacího letounu, který byl vytvořen během druhé světové války společností McDonnell Aircraft. Měl být nasazen z bombového prostoru obřího bombardéru Convair B-36 jako parazitní bojovník. Zamýšlenou úlohou XF-85 bylo bránit bombardéry před nepřátelskými stíhacími letadly, což bylo prokázáno během druhé světové války. McDonnell postavil dva prototypy, než letectvo (USAAF) program ukončilo.
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McDonnell XF-85 Goblin Procházka Kolem
Fotografů
John Heck, Vladimir Jakubov
Lokalizace
Národní muzeum USAF, Dayton
Fotografie
96
Viz také:
General Characteristics and Role
The McDonnell XF-85 Goblin was an experimental jet fighter developed for the United States Air Force (USAF) in the late 1940s. Its highly unusual role was to serve as a “parasite fighter”—a defensive fighter that would be carried and launched from a bomber, specifically the massive Convair B-36 Peacemaker, and recovered mid-air. This concept arose because early jet fighters lacked the range to escort strategic bombers on long-distance missions, leaving them vulnerable to enemy interceptors deep inside hostile territory. The XF-85 was designed to be small enough to fit within the B-36’s bomb bay and featured a unique hinged nose assembly for hooking up to a trapeze system.
Property
Typical Value (XF-85)
Roli
Experimental Parasite Fighter
National Origin
Spojené státy americké
Výrobce
McDonnell Aircraft Corporation
First Flight (unattached)
23 August 1948
Posádky
1 (Pilot)
Délka
4.93 m (16 ft 2 in)
Rozpětí křídel
6.44 m (21 ft 1 in)
Gross Weight
2 540 kg (5 600 liber)
Powerplant and Unique Features
Engine: 1 x Westinghouse J34-WE-22 turbojet engine.
Thrust: 3,000 lbf (13 kN).
Armament: Proposed four .50 caliber (12.7 mm) M2 Browning machine guns (never installed on the prototypes).
Unique Tail: It featured a distinctive cruciform tail and swept wings that folded upwards for stowage inside the bomber.
Recovery System: The plane used a retractable hook in its nose to latch onto a specialized trapeze lowered from the carrier aircraft (initially a modified B-29 Superfortress, later planned for the B-36).
Performance: The intended speed was over 1,000 km/h (620 mph), designed to intercept potential enemy fighters like the MiG-15.
Program Outcome and Legacy
Testing: The recovery phase of the test flights proved extremely difficult, due to the intense turbulence and buffeting behind the carrier aircraft. Pilots reported high difficulty in successfully mating the hook with the trapeze.
Cancellation: The program was cancelled in 1949 after only a few test flights. The mid-air docking procedure was deemed too risky for operational use. Furthermore, the rapid development of aerial refueling technology provided a more practical solution to the bomber escort problem.
Legacy: While unsuccessful, the XF-85 stands as one of the most unique and ambitious attempts in aviation history to solve the strategic bomber escort challenge. It remains a prime example of Cold War experimental aircraft design.
Preservation: Both prototypes built (AF Ser. No. 46-523 and 46-524) survive. One is displayed at the National Museum of the United States Air Force in Dayton, Ohio, and the other at the Strategic Air Command & Aerospace Museum in Ashland, Nebraska.