Norman Thompson N.T.4
|Norman Thompson N.T.4|
|Primary user||U.K. (RNAS)|
|Wingspan||23.7 m (77 ft 10 in)|
|Engine||(NT4) 2×150hp Hispano-Suiza|
(NT4a) 2×200hp Hispano-Suiza
|Armament||front flexible Lewis|
2×100 kg (230 lb) bombs
|Max Speed||148 km/h (92 mph) - 153 km/h (95 mph)  [note 1]|
|Climb||2,000 ft (610 m) in 3:50|
6,500 ft (2,000 m) in 15:00-15:30
10,000 ft (3,000 m) in 31:05
|Service Ceiling||11,700 ft (3,600 m) |
Inspired by the Curtiss H-4, the Norman Thompson N.T.4 had similar lines but integrated the glass-enclosed cabin directly into the hull structure. The initial batch was powered by a pair of 150hp Hispano-Suiza vee-eights, but later runs used the 200hp geared engines shared with the R.A.F. S.E.5a, and in this form it was re-designated the Norman Thompson N.T.4a.
Like the Curtiss H.4, the N.T.4 was nicknamed the Small America. Armament consisted of a Lewis gun on a Scarff ring and up to 210 kg (460 lb) of bombs. The Hispano engines were troublesome, though, and the planes were retired before the war's end.
For more information, see Wikipedia:Norman Thompson N.T.4.
- With 200hp engines.
- Nowarra, p.104.
- Nowarra, pp.202-204.
- Bruce'69, p.652.