Grumman Gulfstream I
| Gulfstream I | |
|---|---|
| USCG VC-4A Gulfstream I in flight, 1964 | |
| General information | |
| Type | Business aircraft | 
| National origin | United States | 
| Manufacturer | Grumman | 
| Number built | 200 | 
| History | |
| Manufactured | 1959–1969 | 
| First flight | August 14, 1958 | 
The Grumman Gulfstream I (company designation G-159) is a twin-turboprop business aircraft. It first flew on August 14, 1958.