The objectives of this program were to design a composite main rotor blade in the multi-tubular spar configuration to be directly interchangeable (in pairs) with the production metal (540) blades on the AH-1G helicopter, have increased fatigue life, invulnerability to the 23mm ballistic threat, low radar cross section, and low fabrication cost. Manufacturing technology was developed and described in a Process Specification. Laboratory, ground, and flight tests demonstrated that the wet-filament wound, co-cured blade met, and in some cases surpassed, all objectives and could be adapted for Army service. (Author)
Flight Test of a Composite Multi-tubular Spar Main Rotor Blade on the AH-1G Helicopter, Volume I. Materials, Design and Test
1977
328 pages
Report
No indication
English
Aircraft , Composite Materials , Helicopter rotors , Composite materials , Fiberglass , Graphite , Tubular structures , Radar cross sections , Loads(Forces) , Rate of climb indicators , Flight loads , Flight testing , Flight speeds , Weight , Spars , Test and evaluation , AH-1G aircraft , H-1 aircraft , Huey Cobra , Gunships
Helicopter main rotor wing spar composite structure and assembling method thereof
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