Jets45 Histories

Junkers Ef-126 "Lilli"

A side view of the Ef-126 in 1947
    Engine: 1x Argus As-044 Pulse-jet making around 1,100 lb of thrust
    Wing Span: 6.30 m
    Length: 8.65 m
    Height: 1.9 m
    Weight: Empty 1,100 kg / Loaded 2,800 kg
    Maximum Speed: 770 km/h
    Ceiling: 10,000 m
    Range: 300 km
    Crew: 1
    Armament: 2x MG 151/20 20mm cannons / 12 R4M rockets under each wing
The mock up of the nose and cockpit as in 1945

Design on the Ef-126 "Lilli" began in late 1944, as part of the "Jager-Notprogramm". It was planned on paper to make two version, one powered by a Argus As 044 pulse-jet engine (Ef-126) and one powered by a Walter rocket engine (Ef-127) little work was done on ether aircraft by the time the Soviets occupied the Dessau plant in 1945, apart of the building of a wind tunnel model and a mockup of the Ef-126, no construction was undertaken.

The Ef-126 was to have been made up of a metal fuselage with wooden wings, with as much as possible being made from low grade and recycled non-strategic materials.

However under Soviets occupations, construction of a prototype Ef-126 was started in October 1945 at the Dessau plant, with a full scale mockup being ready by January 1946, the Soviets were impressed enough to order the Junkers team to make five aircraft. The first prototype was completed by mid May 1946, with it's first flight soon after wards, flown by Matthies. The aircraft was not fitted with an engine at this point, but was towed* into the air by a Junkers Ju-88G. The second test flight was on the 21/5/1946, this again with out the Argus As 044 engine being fitted, this flight ended with the aircraft crashing and killing the pilot Herr Matthies.
Another view of the same Ef-126
The wind tunnel model in 1945
After the crash a number of modifications were made to the design of the other four aircraft. In the summer of 1946 a Soviet commission inspected the work of the Junkers staff and in September 1946 three aircraft the V-2,V-3 and V-4 were transferred to the USSR for further flight trials and tests, the V-5 remained in Germany at the Dessau works, it having it's first flight on the 16/3/1947 again towed into the air by a Ju-88.
But by the 20/6/1948, it was decided by the Soviet Aviation Ministry that all work on the Ef-126 should be stopped in Germany and the USSR.
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