FVM Ö1 Tummelisa

FVM Ö1 Tummelisa
Kraju	Szwecja
Roli	Samoloty szkoleniowe
Pierwszy lot	Czerwiec 1920 r.
Zbudowany	28

Tthe FVM Ö 1 Tummelisa (szwedzki dla Thumbelina) to jednomiejscowy, jednosilnikowy szwedzki dwupłatowiec z lat 20. Był obsługiwany przez szwedzkie siły powietrzne jako zaawansowany trener do połowy lat 30.

Źródła: FVM Ö1 Tummelisa na Wikipedii

FVM O1 Tummelisa spacer
Fotografów	Niewiedzy
Lokalizacja	Niewiedzy
Zdjęcia	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)
Roli	Advanced Trainer Aircraft
National Origin	Szwecja
Producent	FVM (Flygkompaniets Tygverkstäder på Malmen)
First Flight	Czerwiec 1920 r.
Emeryturze	1935
No. Built	~28–30
Załogi	1 (Pilot)
Długość	5.5 m (18 ft 1 in)
Rozpiętość	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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