Junkers Ju 352 Herkules
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The third prototype, Ju 352V3
[Source: Unknown]
Designed from the Junkers Ju 252 in 1943 to utilize non-strategic materials and stockpiled engines, the Ju 352 proved to be adequate but noticibly inferior to the Ju 252. A hydraulically powered Trapoklappe (rear loading ramp) allowed loading of heavy vehicles or freight whilst holding the fuselage level.
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Sources:
Gunston, Bill & Wood, Tony - Hitler's Luftwaffe
, 1977, Salamander
Books Ltd., London
Wikipedia: Junkers Ju 352
Gunston, Bill & Wood, Tony - Hitler's Luftwaffe
Wikipedia: Junkers Ju 352