2014年10月1日水曜日
4 blade propeller
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2 pieces of 10-6 Graupner Super Nylon propeller would be put on YS 60SR motor as an experimental trial tomorrow. The blade width and thickness of 2 blades prop are both far larger than APC 4 blade prop if compared. Narrower and thin construction would gain more motor rotation, but on the mechanical efficiency, more actual experiment would be required to know the effective road nP15 maneuver would be, 2 cycle motor with tuned silencer.
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