Fieseler Fi 156
| Fi 156 Storch | |
|---|---|
.jpg) |
|
| Storch in flight at Flying Legends (July 2012) | |
| Role | Reconnaissance & communications |
| National origin | Germany |
| Manufacturer |
Fieseler Morane-Saulnier |
| First flight | 24 May 1936 |
| Introduction | 1937 |
| Retired | Germany: 1945 France: 1970 |
| Primary users |
Luftwaffe French Army French Air Force |
| Produced | 1937–1949 (1965 for the MS 500) |
| Number built | Over 2,900 |
The Fieseler Fi 156 Storch (English: Stork) was a small German liaison aircraft built by Fieseler before and during World War II. Production continued in other countries into the 1950s for the private market. It remains famous for its excellent STOL performance; French-built later variants often appear at air shows.
In 1935, the RLM (Reichsluftfahrtministerium, Reich Aviation Ministry) invited tenders from several companies for a new Luftwaffe aircraft suitable for liaison, army co-operation (today called forward air control), and medical evacuation. This resulted in the Messerschmitt Bf 163 and Siebel Si 201 competing against the Fieseler firm's tender. Conceived by chief designer Reinhold Mewes and technical director Erich Bachem, Fieseler's design had a far better short take off and landing ("STOL") performance. A fixed slat ran along the entire length of the leading edge of the long wings, while a hinged and slotted set of control surfaces ran along the entire length of trailing edge. This was inspired by earlier 1930s Junkers Doppelflügel, "double-wing" aircraft wing control surface design concepts. For the Fi 156, this setup along each wing panel's trailing edge was split nearly 50/50 between the inboard-located flaps and outboard-located ailerons, which themselves included trim tab devices over half of each aileron's trailing edge length.
A design feature rare for land-based aircraft enabled the wings on the Storch to be folded back along the fuselage in a manner similar to the wings of the US Navy's Grumman F4F Wildcat fighter. This allowed the aircraft to be carried on a trailer or even towed slowly behind a vehicle. The primary hinge for the folding wing was located in the wing root, where the rear wing spar met the cabin. The long legs of the main landing gear contained oil-and-spring shock absorbers that had a travel of 40 cm (15-3/4 inches), allowing the aircraft to land on comparatively rough and uneven surfaces - this was combined with a "pre-travel" distance of 20 cm, before the oleos began damping the landing gear shock. In flight, the main landing gear legs hung down, giving the aircraft the appearance of a long-legged, big-winged bird, hence its nickname, Storch. With its very low landing speed the Storch often appeared to land vertically, or even backwards, in strong winds from directly ahead.
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Wikipedia