Grumman G-159 Gulfstream I

A picture of the Grumman G-159 Gulfstream I

As early as 1947 the Grumman Company was working on designs for a twin-engine executive transport aircraft.  The concept went through several stages including conversions of existing Grumman designs and all new jet powered concepts.  By 1956 they had settled on a turboprop design as the best compromise between speed and affordability.  Interest in the aircraft was extremely high and a series of preorders and deposits convinced Grumman to go ahead.  The aircraft that emerged on August 14, 1958 could carry up to 24 passengers over 2,000 miles at speeds in excess of 300 miles an hour.  A total of 200 Gulfstream I aircraft were built between 1958 and 1969 with the vast majority going into service as corporate transports.  A very few were used as airliners, but they quickly proved to be uneconomical in that role.  The U.S. Navy purchased nine aircraft for training A-6 Intruder navigators while the Coast Guard purchased one aircraft as a transport.  In 1963, NASA purchased five Gulfstreams for both experimental and transport use.

Wingspan

78 ft 4 in.

Length

63 ft 9 in.

Height

22 ft 9 in.

Weight

31,000 lbs (loaded)

Maximum Speed

357 MPH

Service Ceiling

36,900 ft

Range

2,500 miles

Engines

Two Rolls-Royce Dart 529-8 turboprops with 2,210 horsepower each

Crew

2 with 15 passengers

Manufacturer
Grumman

Markings
National Aeronautics and Space Administration, Johnson Space Center, Houston, Texas, 2002

Designation
G-159

Registration
N4N4

Serial Number
151

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