Navy Jet Trainer (VTX) Conceptual Design Studies.
NAVAL AIR DEVELOPMENT CENTER WARMINSTER PA AIR VEHICLE TECHNOLOGY DEPT
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The VTX aircraft is intended to fill the future trainer role for basic and advanced flight training of Navy undergraduate jet pilots. The vehicle design studies include definition of a baseline VTX configuration and examination of take-off gross weight sensitivity to six performancedesign parameters sustained maneuvering load factor, service ceiling, avionics payload, structural limit load factor, maximum speed, and range. Vehicle design synthesis and performance estimation are accomplished with the aid of HIPERAC, a tactical aircraft design tool developed by NAVAIRDEVCEN. The VTX vehicle design serves principally as a tool for examining the design implications of preliminary requirements proposed for Navy jet trainer aircraft. Initially, three driving performance requirements sustained maneuverability, take-off distance, and landing distance and a fuel-critical mission Low Level Operational Navigation are identified, then a vehicle configuration is developed to satisfy these constraints. The take-off gross weight of this vehicle is 12,235 lbs., and it is powered by two turbofan engines of 3475 lbs. rated thrust apiece. Maximum Mach number is 0.84 at 30,000 ft. altitude, maximum sustained normal acceleration at 18,000 ft. is 4gs, service ceiling is 52,700 ft., and maximum range is 1573 n. mi. Takeoff gross weight is particularly sensitive to increases in sustained load factor, maximum speed, and service ceiling but much less sensitive to reductions in these parameters because reduced weight design solutions are bounded by the take-off distance constraint. Author
- Training Aircraft