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Jets - Gulfstream IIb #139

History of the Gulfstream IIb #139

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.


  • 13,850 Total Hours; Landings 8290

Engines: Rolls-Royce Spey MK 511-8

  Left Right
Serial # 8796 8798
Run Time 12,872 (12/06) 13,406 (4/06)
OH Due 13,530 13,738
Hours Until OH 450 150


  • S/N P34819; Since New: 8068 hrs
  • Time Since Hots: 1802 hrs; HSI due 9266 hrs


  • Single Sperry SP-50G Auto Pilot
  • Dual Collins 562A Flight Director
  • Triple Collins VHF-22D COMMS
  • Dual Collins VIR-30 NAV
  • Dual Collins ADF-60 ADF
  • Single Collins DME-40 DME
  • Dual Collins 671U-4A HF's w/selcal
  • Single Universal UNS-1B+ FMS/GPS
  • Single Universal UNS-1D FMS/GPS
  • Collins 54W-1C Comp Warning
  • Fairchild A100A CVR
  • Single Litton LTN-72RL Inertial
  • Sundstrand MK-2 GPWS
  • TCAS II w/Change 7
  • Primus 800 Radar

Entertainment System

  • 20" Sony TV
  • Nakamichi CD/Audio System
  • Two (2) Sony VCR's
  • Two (2) 5.6" Rosen Monitors at Aft Seats
  • Dual Ovens
  • Lou Martin Electric Window Shades


  • Matterhorn White with Three Blue Stripes. 1993.


  • Gorgeous 11 Passenger Executive interior with new carpet, soft goods (seats, side panels, etc.) and wood rework done 3/2003. G-IV “Wide –Look” Interior completed in Beige Leathers, Neutral Carpet and Light Burled finish on Woodwork. Aft Galley and Aft Lavatory. Cabin configured with Two Single Seats with Opposing 3 Place Divan Fwd; Four Place Conference Group w/ Opposing Credenza Mid; 2 opposing single seats Aft. Cockpit refurbished including new sheepskin seats.


  • Stage II Hush Kits / J.E.T. Standby Attitude Gyro / 8.33 Mhz Spacing / FM Immunity / Flitephone VI / Interior Fireblocked to Part 135.

Aircraft History provided by
The Wings of the Web

Gulfstream IIb #139 Samples

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