The application of propeller test data to design and performance calculations (1925)
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74 REPORT NATIONAL ADVISORY COMMITTEE EOR AERONAUTICS. curateresults couldbeobtainedbyeonstructingacurveofr)02vs. ^for the desired^- Having obtained the -t* at each. V, n and consequently B.HP and i\ are known. … FiQ.'fl.—Variation of »(7, with 2 and -JL Durand propellers Nos. Fig. 7.—Variation of V>n?» with £■ and Durand's pro- D nD pollers Nos. 139,11, 7,3, 82, and 113. | 139,11, 7,3, 82, and 113. 240 220 200 180 I /SO /00 50 61 'O JO .20 .30 .40 .50 60 -70 80 In yi y^p— of sea level I ig. 8.—Chart for…
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