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NACA-TR-1336
An investigation of single- and dual-rotation propellers at positive and negative thrust, and in combination with an NACA 1-series D-type cowling at Mach numbers up to 0.84
Year: 1957
Abstract: An investigation has been made to determine the aerodynamic characteristics of the NACA 4-(5)(05)-041 four-blade, single-relation propeller and the NACA 4-(5)(05)-037 six- and eight-blade, dual-rotation propellers in combination with various spinners and NACA d-type spinner-cowling combinations at Mach numbers up to 0.84. Propeller force characteristics, local velocity distributions in the propeller planes, inlet pressure recoveries, and static-pressure distributions on the cowling surfaces were measured for a wide range of blade angles, advance ratios, and inlet-velocity ratios. Included are data showing: (a) the effect of extended cylindrical spinners on the characteristics of the single-rotation propeller, (b) the effect of variation of the difference in blade angle setting between the front and rear components of the dual-rotation propellers, (c) the negative- and static-thrust characteristics of the propellers with 1 series spinners, and (d) the effects of ideal- and platform-type propeller-spinner junctures on the pressure-recovery characteristics of the single-rotation propeller-spinner-cowling combination.
Subject: AERODYNAMIC
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T18:29:15Z | |
| date available | 2017-09-04T18:29:15Z | |
| date copyright | 01/01/1957 | |
| date issued | 1957 | |
| identifier other | ISUYYDAAAAAAAAAA.pdf | |
| identifier uri | http://yse.yabesh.ir/std;jsery=autho47037D83FCDCAC42/handle/yse/211409 | |
| description abstract | An investigation has been made to determine the aerodynamic characteristics of the NACA 4-(5)(05)-041 four-blade, single-relation propeller and the NACA 4-(5)(05)-037 six- and eight-blade, dual-rotation propellers in combination with various spinners and NACA d-type spinner-cowling combinations at Mach numbers up to 0.84. Propeller force characteristics, local velocity distributions in the propeller planes, inlet pressure recoveries, and static-pressure distributions on the cowling surfaces were measured for a wide range of blade angles, advance ratios, and inlet-velocity ratios. Included are data showing: (a) the effect of extended cylindrical spinners on the characteristics of the single-rotation propeller, (b) the effect of variation of the difference in blade angle setting between the front and rear components of the dual-rotation propellers, (c) the negative- and static-thrust characteristics of the propellers with 1 series spinners, and (d) the effects of ideal- and platform-type propeller-spinner junctures on the pressure-recovery characteristics of the single-rotation propeller-spinner-cowling combination. | |
| language | English | |
| title | NACA-TR-1336 | num |
| title | An investigation of single- and dual-rotation propellers at positive and negative thrust, and in combination with an NACA 1-series D-type cowling at Mach numbers up to 0.84 | en |
| type | standard | |
| page | 61 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1957 | |
| contenttype | fulltext | |
| subject keywords | AERODYNAMIC | |
| subject keywords | AIRCRAFT | |
| subject keywords | ANGLES | |
| subject keywords | BLADES | |
| subject keywords | CHARACTERISTICS | |
| subject keywords | COWLINGS | |
| subject keywords | DISTRIBUTION | |
| subject keywords | EFFICIENCY | |
| subject keywords | GEOMETRY | |
| subject keywords | PARTS | |
| subject keywords | PRESSURE | |
| subject keywords | PROPELLER | |
| subject keywords | PROPELLERS | |
| subject keywords | RECOVERY | |
| subject keywords | SPINNERS | |
| subject keywords | STATIC | |
| subject keywords | TESTS | |
| subject keywords | THRUST | |
| subject keywords | TUNNEL | |
| subject keywords | VELOCITY | |
| subject keywords | WIND |