Designed and built by Nielsen & Winther A/S, a Copenhagen
machine tool manufacturer, possibly with some
assistance from the Swedish Thulin concern, the Type
Aa single-seat fighter was first flown on 21 January
1917. Of wooden construction, the Type Aa was
powered by a 90hp Thulin rotary engine (a copy of the
Le Rhone) and was armed with a single 8mm Madsen
machine gun mounted on the upper wing and firing
above the propeller disc. Ground tests with synchronising
equipment took place in 1918, reportedly using a
Type Aa with the gun mounted on the side of the fuselage,
but there is no evidence that air firing tests took
place. Six Type Aa fighters were delivered to the Danish Army during 1917, but these were withdrawn
from service in 1919 owing to the unreliability of their
engines. Prototypes were completed of a two-seat reconnaissance
version, the Type Ab, and a floatequipped
version of the single-seater, the Type Ac.
|A three-view drawing (1280 x 978)|
| Take-off weight||550 kg||1213 lb|
| Empty weight||350 kg||772 lb|
| Wingspan||7.70 m||25 ft 3 in|
| Length||6.60 m||22 ft 8 in|
| Height||2.8 m||9 ft 2 in|
| Max. speed||150 km/h||93 mph|
Concerning the type Ab, there were two build and only one was delivered.
Question for Beifang and Gabriel, how can I get a scan of the pictures you mention for my own purpose?
|Gabriel Pavlovcic, 25.07.2011|
This sole plane was owned by Albert Jarfelt and his wife Henriette Fruchard and used in Argentina. Have four superb repro-photos!
Weston, what's the point of you?
This plane was used in Villa Lugano and San Fernando aerodromes, circa 1919, by Jarfelt an his wife Henriette Fruchard. Have 2 repro-photos
Nielsen & Winther Type AA
|GABRIEL PAVLOVCIC, 29.09.2010|
Was the sole prototype of Ab Type exported to Argentina?
I´ve been told, Albert Jarfelt received the sole plane in Buenos Aires, September 09, 1919, via "Frisa" ship. This plane was used in Villa Lugano and San Fernando aerodromes, circa 1919, by Jarfelt an his wife Henriette Fruchard. Have 2 repro-photos.
what is the piont of the plane
Do you have any comments about this aircraft ?