FVM Ö1 Tummelisa

FVM Ö1 Tummelisa
País	Suecia
Papel	Aviones de entrenamiento
Primer vuelo	Junio de 1920
Construido	28

el FVM Ö 1 Tummelisa (sueco para Thumbelina) es un biplano sueco monoplaza y monomotor de la década de 1920. Fue operado por la Fuerza Aérea Sueca como su entrenador avanzado hasta mediados de la década de 1930.

Fuente: FVM Ö1 Tummelisa en Wikipedia

FVM O1 Tummelisa Paseo alrededor
Fotógrafos	Unknow
Localización	Unknow
Fotos	11

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General Characteristics

The FVM Ö1 Tummelisa (Swedish for “Thumbelina”) is a light, single-seat biplane from the 1920s. It was the most well-known and successful aircraft designed by FVM (Flygkompaniets Tygverkstäder på Malmen), the Swedish Army Aviation’s workshop. The aircraft was developed for advanced training, particularly for prospective fighter pilots, and was praised for its agility, though it demanded skill due to the gyroscopic effect of its rotary engine. When the Swedish Air Force (Flygvapnet) was established in 1926, the type was officially designated Ö 1 (Övningsplan 1, or Advanced Trainer 1). Remarkably, it served until the mid-1930s without any fatal accidents.

Property	Typical Value (Ö 1)
Papel	Advanced Trainer Aircraft
National Origin	Suecia
Fabricante	FVM (Flygkompaniets Tygverkstäder på Malmen)
First Flight	Junio de 1920
Retirado	1935
No. Built	~28–30
Equipo	1 (Pilot)
Longitud	5.5 m (18 ft 1 in)
Envergadura	7.8 m (25 ft 7 in)
Max Takeoff Weight	~535–552 kg (1,180–1,217 lb)

Powerplant and Performance

Engine: 1 x Thulin A 9-cylinder rotary engine (based on the Le Rhône).
Power Output: 67 kW (90 hp).
Propeller: 2-bladed.
Maximum Speed: 145–148 km/h (90–92 mph).
Service Ceiling: 5,000 m (16,000 ft).
Construction: Light wooden construction with wings and tail coated in linen fabric. The fuselage was covered in plywood.
Unique Feature: The rotary engine demanded special skill to compensate for the torque effect, making it an excellent, demanding advanced trainer.

Design and Legacy

Original Name: Initially known as “Tummeliten” (Little Tom Thumb), but pilots quickly nicknamed it “Tummelisa.”
Designers: Gösta von Porat and Henry Kjellson.
Operational Use: Served primarily at the Swedish Air Force Flight Academy (F 5) at Ljungbyhed.
Survivors: One original Ö 1 is preserved and displayed at the Flygvapenmuseum (Swedish Air Force Museum) in Linköping. At least one flying replica exists, built by Mikael Carlson.

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