Category Archives: Glider


Cornelius XFG-1(Frank-Airmodel, Vacu-formed)

TYPE: Fuel transporting towed glider




COMMENT: The Cornelius XFG-1 was a military fuel transporting towed glider, without a tail plane and with a forward-swept wing. Its designation “FG” stood for fuel glider and its role was as a fuel transport. It was to be towed behind another aircraft rather like contemporary troop carrying gliders, but its two fuselage tanks held 677 US gal of aviation gasoline. Unlike other troop carrying gliders like the Waco CG-4A Hadrian, the XFG-1 could be towed by bombers or transports at a cruise speed of 250 mph. Proposals seem to have included a piloted tow version behind a large transport, the glider landing loaded on skids having jettisoned its wheels after take-off; or a pilotless version towed behind a B-29 bomber, disconnected and abandoned after fuel transfer was completed; the intent of the scheme being for the glider to act, essentially, as a giant, winged drop tank for extending the range of the towing aircraft. The XFG-1 was a high-wing monoplane, its wing set far back towards its vertical stabilizer. The wing was quite high aspect ratio and of modest forward sweep. Though the earlier Cornelius aircraft had wings that had their incidence variable in the air, the incidence on the XFG-1 could only be adjusted on the ground, with two settings of 3˚ and 7˚. There was no horizontal tail. It had a simple fixed tricycle undercarriage and a conventional single seat cockpit; two examples of the type were built for test purposes only (Ref.:  24).

Northrop MX-324 (Unicraft, Resin)

TYPE: Experimental rocket-powered flying-wing aircraft

ACCOMMODATION: Pilot only, in prone position

POWER PLANT: One Aerojet XCARL-2000A-1 rocket engine, rated at 920 kp thrust


COMMENT: In 1942, Northrop Company was working an ambitious design for a rocked driven flying wing fighter aircraft under the designation Northrop XP-79. To test the radical design, rocket-powered glider prototypes were built under the designation MX-324. Positioned on a trolley the first aircraft was towed into the air on 5 July 1944 by a Lockheed P-38 Lightning. Once released towline the rocket engine was ignited for three minutes, making the Northrop MX-324 the first US-built rocket-powered aircraft. After successful flight the aircraft landed on skids. In late 1944 the MX-324 was retrofit with a tricycle landing gear enabling take-off and landing on runways. Results from flight tests were incorporated in the final aircraft, the Northrop XP-79B (Ref.: 23)