Curtiss N-9
| Curtiss N-9 | |
|---|---|
|
|
| Type: | Trainer aircraft |
| Design country: | |
| Manufacturer: | |
| Commissioning: |
1917 |
| Production time: |
1917-1927 |
| Number of pieces: |
574 |
The Curtiss N-9 (also Model 5) is a biplane - seaplane that in the First World War by American Glenn Curtiss was constructed.
development
The Curtiss N-9 was an evolution of the Curtiss Model N of 1914. From originated the joining of the best features of the two mutually very similar designs model J and model N end of 1914, the Curtiss JN-4 . While Curtiss did not pursue the Model J any further, the Model N was further developed independently and parallel to the Jenny in 1915/16. Series versions were the N-8 and N-9, while nothing is known about the existence of any predecessor variants N-1 to N-7.
The N-9 was essentially a JN-4B that received a 100 horsepower Curtiss OXX engine, a central float, and an extension of the lower wings by 1.52 m. Due to the increased span, the additional weight of the swimmers could be compensated. The ailerons of the upper wing were also enlarged, as on the JN-4B. The Curtiss OXX-6 engine with its 100 HP made 10 HP more than the OX-5 engine of the Curtiss JN-4. In addition to the large middle float, the aircraft had a support float on each wing tip.
During test flights with the prototype, deficiencies in directional stability were found. Therefore, the series machines received an enlarged vertical stabilizer.
With the Curtiss factories overloaded, Marblehead Burgess manufactured 460 aircraft.
A total of 560 aircraft were ordered for the US Navy and 14 for the US Army . Due to the armistice, an order for a further 1,200 aircraft was canceled.
variants
N-9H : The aircraft was equipped with a 150 hp Wright A engine. With the appearance of the Curtiss N-9H, the N-9 was renamed the N-9C. The N-9H was 30.5 cm longer, weighed 971 kg empty and had a max. Takeoff weight of 1247 kg. The top speed was 125 km / h. The aircraft reached a service ceiling of 2010 m.
Technical specifications
| Parameter | Curtiss N-9 data |
|---|---|
| crew | 2 |
| length | 9.09 m |
| Wingspan | 16.25 m |
| drive | 8-cylinder V-engine Curtiss OX-6 with 100 HP (74 kW) |
| Top speed | 113 km / h |
| Service ceiling | 2743 m |
| Max. Flight time | 2 h |
| Takeoff mass | 1093 kg |
See also
literature
- Peter M. Bowers : Curtiss Aircraft 1907-1947. Putnam, 1979, ISBN 0-370-10029-8 , pp. 111-115.
- Enzo Angelucci, Paolo Matrcardi: Airplanes from the beginning to the 1st World War. Falken-Verlag E. Sicker, Wiesbaden 1976, ISBN 3-8068-0391-9 , p. 238.
- AERO. Issue 55, p. 1538.
