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Old 04-21-2003 | 03:24 PM
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Newfly
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Default 1 Negative thrust (what is this)

Could you help me with the above-[img]i/expressions/face-icon-small-confused.gif[/img]described in an old Popular Mechanics DIY Encyclopedia."Use a 3-blade prop (1 neg thrust max)with a COX 020 engine.So what type of prop should this bee?I only understand the 3-blade part.Thanx in advance.