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Jets - 1975 Gulfstream IIb #166

History of the 1975 Gulfstream IIb #166

Collectively the most successful members of the Gulfstream corporate aircraft family, the Gulfstream II and Gulfstream III are Spey powered developments of the original turboprop powered Gulfstream I.

The Rolls-Royce Dart turboprop powered Grumman Gulfstream I proved to be quite successful as a large long range corporate transport, while the availability of an faster and more powerful turbojet powered model, the Rolls-Royce Spey meant that a jet powered successor was a logical development. Grumman launched such an aircraft, named the Gulfstream II or G-II, in May 1965.

While based on the original Gulfstream I - the G-II shares the same forward fuselage and cross section - there are more differences than similarities. The most obvious difference is the two rear mounted Spey axial flow turbojet engines, others include a new swept wing and tail. A similar size fuselage to the G-I seats 10 in a typical executive configuration.

No prototype G-II was built, instead the first to fly was a production standard aircraft, which first flew on October 2 1966. Certification and first production deliveries occurred in October and December 1967 respectively.

The improved Gulfstream III followed Gulfstream American's purchase of Grumman's GA lines in 1978. The Gulfstream III first flew on December 2 1979. Changes compared with the G-II include a revised wing of greater span and area with drag reducing winglets, more fuel tankage and thus range, reprofiled nose and a 97cm (3ft 2in) fuselage stretch. Gulfstream IIBs are G-IIs retrofitted with the G-III's wing.

Production deliveries of G-IIIs began in late 1980 and continued until 1986 when production ceased in favor of the Gulfstream IV, a somewhat larger model with two new, quieter, more powerful and fuel efficient Rolls-Royce Tay turbofans.


  • 12,025 Total Hours; Landings 8,060

Engines: Rolls-Royce Spey MK 511-8

  Left Right
Time Since New 11,956 12,083
Since Mid 2065 2426
Time to OH 01/12 05/12


  • Garrett GTCP-100G


  • FD
  • Comm
  • Nav
  • ADF
  • DME
  • HF
  • TCAS-II w/change 7
  • FMS Dual GNS-XLS
  • Radar
  • Enc Alt
  • Rad Alt
  • AutoPilot
  • Flitefone
  • ELT 406 mHz
  • ADC
  • CVR
  • FDR


  • RVSM
  • 8.33/FM Immunity
  • Part 135 Certified
  • RNP-5 & -10
  • Flight ID


  • November 2004. Overall Matterhorn White with Black/Gold Accent Striping.


  • 1995. 15 pax fireblocked executive interior completed in teal green and light gray leather with light oyster carpet, headliner and sidewalls. High gloss walnut burl wood woodwork; two forward bulkhead monitors; Configured with forward 4-place club; mid-cabin 4-place dining with 2 single seats opposite; aft 2-place club opposite 4-place divan. Aft galley with all amenities.

Aircraft History provided by
The Wings of the Web

1975 Gulfstream IIb #166 Samples

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