Keystone NK

Keystone NK
Keystone NK
Role Biplane trainer
National origin United States
Manufacturer Keystone Aircraft
First flight 1928
Introduction 1930
Primary user United States Navy
Number built 20

The Keystone NK or Keystone Pup was a two-seat biplane trainer built by Keystone Aircraft for the United States Navy.

Design 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.

Variants

Pup
Keystone prototype, one built.
XNK-1
Prototypes for Naval variant of Pup, three built.
NK-1
Production aircraft with minor changes, 16 built.

Operators

 United States

Specifications (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)
  • Range: 375 miles (603 km)

References

  • Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. 
  • The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). Orbis Publishing. 
  • Andrade, John (1979). U.S.Military Aircraft Designations and Serials since 1909. Midland Counties Publications. ISBN ISBN 0-904597-22-9. 

External links

v · d · eUSN/USMC trainer aircraft designations 1922-1948
Boeing

NB • N2B
Curtiss

(NC not assigned) • N2C
Piper

NE
Huff-Daland

HN
Howard

NH
North American

NJ
Keystone

NK
Langley

XNL
Martin

(NM not assigned) • N2M
Naval Aircraft Factory

(NN not assigned) • N2N • N3N • (N4N not assigned) • XN5N
Spartan

NP
Fairchild

XNQ
Ryan

NR
Stearman

NS • N2S
New Standard

NT
Timm

N2T
Consolidated

NY • N2Y • XN3Y • N4Y
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