With a cabin in which a six-foot person can stand comfortably, the passenger-configured Gulfstream G-I boasts airline-type seating, oversized cabin windows, an oversized bathroom and a galley capable of serving snacks all the way to full in-flight meals.  The first in the Gulfstream Aerospace business aircraft line of executive airplanes, the G-I is powered by two reliable British Rolls-Royce turboprop (jet prop) engines.  One of the fastest of all turboprop aircraft, the G-I cruises at 300 mph at 18,000 to 24,000 feet of altitude.  Charters in the G-I include two pilots and one flight attendant.  The number of passenger seats varies by aircraft, so contact a Phoenix Air Charter Coordinator for full details.