what is it?
Raab-Katzenstein RK-26 Tigerschwalbe, also known as the Fieseler F 1 Tigerschwalbe, was a German twin-seat biplane trainer aircraft designed by Gerhard Fieseler by the end of the 1920s.
How to recognise it: 1 piston engine with propeller · biplane · 8.4 m wingspan
base stats
Bars compare against all aircraft: 3,500 km/h, 20,000 km, 850 seats; size and number built on a log scale up to 640 t (An-225) and 45,000 built (Cessna 172).
fun facts
- First flew 96 years ago, in 1930.
piston: A car-like piston engine turning a propeller: simple and cheap, the classic small plane.
spec sheet
- first flight
- 1930
- status
- retired
- number built
- 27
- role
- training aircraft
- origin
- Weimar Republic
- makers
- Raab-Katzenstein, Svenska Järnvägsverkstäderna
- engines
- 1× Armstrong Siddeley Lynx / Walter Castor
- crew
- 2
- length
- 6.6 m
- wingspan
- 8.4 m
- height
- 2.7 m
- max take-off weight
- 1,100 kg
- top speed
- 190 km/h
- cruise speed
- 160 km/h
- range
- —
- ceiling
- 5,000 m
- wings
- biplane
Specs are for the version in the Wikipedia article's specification section. Blank means the sources don't say.
Sources: Wikidata Q479921, Wikipedia: Raab-Katzenstein RK-26 (CC BY-SA 4.0).Updated 2026-10-24.