Grumman Aircraft Engineering Corporation announced the development of the jet-powered Gulfstream II (design number G-1159) on May 5, 1965. In total 256 GII's were built and delivered by Grumman, Grumman American Aviation Corp. and Gulfstream American between October 1966 and March 1980. Click on the picture for more details on the Gulfstream II and in-depth airframe reports.