The Astra SPX is the upgrade from the Astra SP.
https://centraljetcharter.com/astra-spx.html The ASTRA SPX Information The Astra SPX introduced by the midsize transcontinental Astra, a clean-sheet improvement over the Westwind. Astra SPX Exterior astra spx on runway, astra spx exterior, citation astra spx External baggage capacity is 42 cubic feet. Interior measurements are 4.8 feet wide, 17.1 feet long and a near unheard of height in a "Midsize Private Airplane" of 5.6 feet. With seating for up to eight passengers and a maximum range of over 3,000 miles, the Gulfstream G100 Astra SPX is designed for medium to long-range charters. The Astra SPX’s average cruising speed of 474 knots make it one of the fastest mid-sized corporate jets in the world. Astra SPX Information The redesigned once more Astra SPX was introduced in 1994 with new engines and winglets. Its engine and design modifications, namely the addition of winglets, aid in maintaining mach .82 at its maximum range of almost 3,000 nautical miles, a great feat. This ...