C-37 Gulfstream USCG 1/48Coast Guard C 37 Gulfstream airplane model. The C 37 is a military version of the Gulfstream V business jet. The Gulfstream V can fly non stop 6,500 nautical miles. On long flights, it can carry eight passengers and a crew of four at Mach 0. 80 while cruising at 51,000 feet. With this aircraft, the Coast Guard is capable of taking senior leadership nonstop to areas of the world that previously required flying much larger aircraft. The key to C 37A's