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2 More Numpty Questions


Geoff Smith 1
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Hiya all. 2 things that I need clearing up.
(1) What is the difference between 'Fast & Slow' Props.
(2) Will Cling film be ok for using between plan and building board.
 
Cheers
 
Geoff
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1. My definition........A slowfly propeller is designed to give thrust at low airspeeds, is usually paddle bladed, and low pitch, designed to give thrust at the low end of it's rev range.......used for funfly type outdoor and indoor planes......A "fast" propeller (more usually called "speed", etc) is designed to bite the air with minimal drag at high rpm for high thrust at the top end of it's effective rev range. (the preserve of flying wings, pylon, etc.)
 
2. Not in my opinion, as said, polythene sheet
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Hiya all. Thanks for this, both questions answered and understood, much to my surprise. I'll have to get the hang of using 'search' the prop question was easily answered there. Cheers my friends.
 
Geoff
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