A Gulfstream I.

The Grumman Gulfstream I (company designation G-159) is a twin turboprop business aircraft that first flew on August 14, 1958. Designed to hold up to 14 passengers, it was mainly used by corporate customers, with a smaller number operated by regional or commuter airlines. A small number were used by the United States Coast Guard and Navy for VIP transport and training under the designation C-4 Academe. 200 total airframes were built.

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