Full-Scale Wind-Tunnel Tests on Several Metal Propellers Having Different Blade Forms (1931)
NASA Technical Reports Server (NTRS) · leaf 9
sections of the per cent less than that of Nos. 4412 and lowest thickness ratio (No. 3603) had the highest 3790, and about 3 per cent less than that maximum efficiency. of No. 3003 under the same conditions. 2. Differences in efficiency between the various (b) The Reed-R propeller absorbs slightly… … occurs at a slightly higher value of Cs, pitch propeller, when operating on the particular so that the pitch is aerodynamically engine and body used in the tests. slightly greater than that of No. 4412 or the other propellers. If the pitches were aerodynamically the same, the maximum efficiency of…
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