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Ö-1 Tummelisa 1920

 

Specifications:  
Wingspan: 63” 158 cm
Length: 43” 108 cm
Wing area: 925 sq" 57,8 dm²
Weight: 9,3 Ibs 4200 g
Wing load: 23 oz/sq' 72 g/dm²
Engine: .60 (10 cc) 2-stroke
  .70 - .90 (11.5 - 15 cc) 4-stroke
Radio Min. 4-channel


The Model
The scale gives an aircraft compact enough to transport in a car, but big enough to fly comfortably. This model has no vices but care should be taken at the flare out, as on its full-size counterpart.

Ö1, Tummeliten
One of the oldest and best known aircrafts at the Swedish Airforce Museum in Linköping, Sweden, is Ö1, Tummeliten (Little Tom Thumb) or more often known as Tummelisa, his female counterpart.
This aircraft was constructed in 1919 at the Swedish Army Aircraft Factory (FFV) at Malmen near Linköping, now the headquarters of SAAB, (Svenska Aeroplan AB). The initiator was Captain Gösta von Porat who had spent some time at Ecole d'aviation in Paris and the chief designer was Henry Kjellson a skilled and advanced aircraft engineer. The aircraft was equiped with an 80 hp rotary engine made in
Sweden and based on the le Rhone rotary engine.
The maine purpose of this aircraft was to replace the heavy and slow Albatross, in service as training aircrafts. It was small and light and was intended to improve the pilots handling skill and sensitivity.
In total 30 planes were built and Tummeliten served without any major accidents until 1935 when all but one were scrapped. The remaining aircraft, No. 3656 was kept in flyable condition long thereafter and was overhauled and repainted as late as 1951 and flown in Gothenburg that year, In 1962, at the 50 year anniversary celebration of the Swedish Airforce Tummeliten was flown for the last time and is now grounded because of the risk of loosing an historical valuable aircraft.

General flight instructions (for both full-size and model):
Ground: Revving up and assisting with rudder not recomended because of ground loop risk.
Start: Keep direction steady with quick rudder corrections and watch tail with elevator. Too low tail reduces directional stability and increases ground loop risk. Climb out at shallow angle.
Aproach: Straight into the wind. Directional corrections during landing and roll out with quick and later large rudder movements. Reving up engine will not improve corrections, but rather make the situation worse.

K&W models 1:5 scale:

Austria-Hungary
Phönix D-III

Finland
Thulin D

France
Morane Saulnier L
Morane Saulnier H
Bleriot XI
Nieuport 17 C-1
Antoinette VII
SPAD XIII
Voisin Bi-plane
Breguet CU-1 RNF

Germany
Albatros C-1
Focke Wulf FW44
Fokker D-V
Fokker D-VII
Fokker E-III
Junkers CL-1
Pfalz E-I
Pfalz E-III

Great Britain
Avro 504 K
Blackburn Mono D
Bristol F2B
R.A.F. SE5a
Sopwith Tri-plane
R.A.F. BE2a
Vickers Vimy

Italy
Macchi M7
Nieuport 17

Japan
K5Y2 Willow (Float)
K5Y1 Willow

Sweden
Focke Wulf FW44
Macchi M7
Phönix D-III
Sk1 CFM Albatros 120
Thulin K
Ö1 Tummelisa

USA
Standard J-1
Wright Flyer
Thomas Morse
Ryan NYP
AIRCO DH4B
Douglas World Cruiser
Curtis JN-4 Jenny
Stearman PT17

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