A cost analysis was conducted on a transmission and drive train system from a single-engine helicopter with an imput of 1134 hp at 6600 rpm. Main rotor speed was 325 rpm. Details and subassemblies of this system were identified using the Army Technical Manual. Prices of space parts were obtained from the Army Master Data File (AMDF). Irregularity ln the prices found showed that it was impossible to identify specific cost drivers or to develop any valide cost baseline or to obtain valid comparative detail costs using this data base. In view of this situation, plans to analyze a second system were abandoned. A detailed review of the data obtained strongly indicated that gears, forgings, and castings are the cost drivers in this system. Since all such systems employ components of similar nature and function, this indication is applicable to other transmission systems and should therefore be useful as an aid in directing cost-reduction efforts. Manufacturing approaches by which costs on such parts may be reduced are suggested. (Jensen)
Cost analysis of a helicopter transmission and drive train
Kostenanalyse eines Hubschrauberuebersetzungs- und Antriebsgetriebes
US Government Reports ; Nov ; 1-46
1979
46 Seiten
Report
English
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