00803nam0-2200301---450-99000876798040332120081128141313.00632020326000876798FED01000876798(Aleph)000876798FED0100087679820081128d1990----km-y0itay50------baengGBy-------001yyBasic helicopter aerodynamicsJ. SeddonOxford [etc.]BSP Professional books1990XVII, 136 p.ill.25 cm629.132'3Seddon,J.504130ITUNINARICAUNIMARCBK990008767980403321H4157/LDINPADINPABasic helicopter aerodynamics810831UNINA