Junkers J.I Blechesel / Tin Donkey
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An all-metal semi-cantilever biplane, the multi-spar metal wings were covered with corrugated light alloy sheet. The entire forward part of the fuselage to the rear of the cockpits was made of 5 mm sheet steel armour. The front fuselage alone weighed 1030 lb. The rear fuselage was a light alloy tube structure, covered with fabric on most aircraft. Control surfaces were all metal, with ailerons on the top wing only.
![]() The J.1 first flew on December 12, 1915, giving unexpectedly stable performance.
Altogether, 227 J.1 were built, serving from late 1917 until the end of the war.
Engine: Benz Bz.IV, 200 hp
Wingspan: 52 ft 6 in
Wing area: 531.5 sq.ft
Length: 29 ft 10.5 in
Height: 11 ft 1.75 in
Empty weight: 3895 lb
MTOW: 4797 lb
Max speed: 97 mph at SL
Endurance: 2 hr
Armament: 1 x Parabellum mg
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