1300. Advanced Technology Effects on V/STOL Propulsion System Weight


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R S St. John: 1300. Advanced Technology Effects on V/STOL Propulsion System Weight. 1979.



Optimization of a V/STOL propulsive concept requires a team effort involving the engine manufacturer, the air framer and of course the procuring agency. The optimization process can be significantly enhanced by establishing detail weight data for the entire propulsive system in the initial design phase. These detail weight data can serve as a basis for identifying:
– Duplication in estimates and/or missing components,
– Advanced technology weight payoff,
– R&D funding allocations and scheduling profiles as a function of weight payoff, and
– Design and integration responsibilities.
The primary purposes of this paper are:
– To provide a detailed weight accounting of all elements associated with the propulsive system.
– Identify advanced technology effects on each of these elements.
– Increase knowledge f weight problems associated with engine/airframer propulsive system integration.
Vought’s Tandem Fan configuration is used as the baseline for the development of the data presented in this paper. The weight estimation methodology employed are based on Vought’s adaptation of the Reference(1) technique, Navy/Vought weight estimation methodology developed in References(2) and (3), and methodology developed under IR&D funding associated with Navy Type A and Type B V/STOL programs.


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