The Fieseler F5 (Fi-5 was a secondary later designation) was a single-engined two-seat sportplane of the 1930's. Produced by the German aircraft manufacturer Fieseler Flugzeugbau, which was started by the WW1 figher ace and German aerobatic star, Gerhard Fieseler. Gerhard worked at the company full time after winning the first World Aeronautics Competition(Championship) of 1934 in his Fieseler F2Tiger, having previously one the 1932 European Aerobatic Championship, and the F5 was among the companies earliest big sellers. The F5 was powered by the Hirth HM60 engine. It competed with the Klemm 25, but with the F5's shorter wings and different handling that experience pilots preferred, it became quite popular.
Some Data on one variant:
F.5/5R: wingspan 10 m, length 6.60 m, range 200km, empty 395 kg
The firm was founded on April 1 1930 as Fieseler Flugzeugbau in Kassel by World War I flying ace and aerobatic champion Gerhard Fieseler.
Fieseler had been a manager for the Raab-Katzenstein, but when this company went bankrupt, Fieseler bought a sailplane factory in Kassel and quickly turned it to building sports planes.
Even greater success was to follow in 1936 when an aircraft of Fieseler's own design won a tender for a new STOL observation and liaison aircraft for the Luftwaffe.
The FieselerFi 156 Storch (stork) was a small liaison aircraft built by Fieseler before and during World War II, and production continued in other countries into the 1950s for the private market.
Fieseler's entry was the most advanced in terms of STOL performance, by far.
Fieseler then offered the Fi 156B model which allowed for the retraction of the leading edge slats and a number of minor aerodynamic cleanups, boosting the speed to 208 km/h (130 mph).