Keystone NK
1920s American naval training aircraft
The Keystone NK or Keystone Pup was a two-seat biplane trainer built by Keystone Aircraft for the United States Navy.
01Design and development
The NK was an open-cockpit two-seat biplane with a convertible wheel or float landing gear. It was powered by a 220 hp (164 kW) Wright R-790 Whirlwind. The company prototype designated the Pup was entered into a United States Navy design competition for a trainer and was awarded a contract for three prototypes designated XNK-1. Following evaluation a production batch of 16 was ordered designated NK-1 which were delivered during 1930.
02Variants
- Pup
- Keystone prototype, one built.
- XNK-1
- Prototypes for Naval variant of Pup, three built.
- NK-1
- Production aircraft with minor changes, 16 built.
03Specifications (NK-1)
General characteristics
- Crew: 2
- Length: 26 ft 6 in (8.08 m)
- Wingspan: 37 ft 0 in (11.28 m)
- Powerplant: 1 × Wright R-790 Whirlwind , 220 hp (164 kW)
Performance
- Maximum speed: 116 mph (186 km/h, 101 kn)
- Range: 375 mi (603 km, 326 nmi)
Sources and credits
This article is adapted from the Wikipedia article “Keystone NK”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Images, from Wikimedia Commons:
- Keystone NK-1.jpg by J.M.F. Haase, Public domain
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