FVM Ö1 Tummelisa

FVM Ö1 Tummelisa
Країні	Швеція
Роль	Навчальні літаки
Перший політ	Червень 1920 р.
Побудований	28

У 201 FVM Ö 1 Tummelisa (шведська для Thumbelina) — одномісний, одномоторний шведський біплан 1920-х років. Він експлуатувався шведськими ВПС як передовий тренер до середини 1930-х років.

Джерело: FVM Ö1 Туммеліса у Вікіпедії

FVM O1 Туммеліса прогулянка навколо
Фотографів	Незнай
Локалізацією	Незнай
Фото	11

FVM Ö1 Tummelisa 1

FVM Ö1 Tummelisa 2

FVM Ö1 Tummelisa 3

ФВМ Ö1 Туммеліса 4

FVM Ö1 Tummelisa 5

FVM Ö1 Tummelisa 6

FVM Ö1 Tummelisa 7

FVM Ö1 Tummelisa 9

FVM Ö1 Tummelisa 8

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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)
Роль	Advanced Trainer Aircraft
National Origin	Швеція
Виробник	FVM (Flygkompaniets Tygverkstäder på Malmen)
First Flight	Червень 1920 р.
Пенсію	1935
No. Built	~28–30
команда	1 (Pilot)
Довжина	5.5 m (18 ft 1 in)
Розмах крил	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.