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NACA-TN-3919
Investigation of effectiveness of a wing equipped with a 50-percent-chord sliding flap, a 30-percent-chord slotted flap, and a 30-percent-chord slat in deflecting propeller slipstreams downward for vertical take-off
Year: 1957
Abstract: Results are presented of an investigation of the effectiveness of a wing equipped with a 50-percent-chord sliding flap and a 30-percent-chord slotted flap in deflecting a propeller slipstream downward for vertical take-off. Tests were conducted at zero forward speed in a large room and included the effects of flap deflection, proximity to the ground, a leading-edge slat, and end plates. A turning angle of about 70 degrees and a resultant force of about 100 percent of the thrust were achieved near the ground. Out of the ground-effect region, the turning angle was also about 70 degrees but the resultant force was reduced to about 86 percent of the thrust.
Subject: AIRPLANES
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T15:21:32Z | |
| date available | 2017-09-04T15:21:32Z | |
| date copyright | 01/01/1957 | |
| date issued | 1957 | |
| identifier other | MZNUYDAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/21528 | |
| description abstract | Results are presented of an investigation of the effectiveness of a wing equipped with a 50-percent-chord sliding flap and a 30-percent-chord slotted flap in deflecting a propeller slipstream downward for vertical take-off. Tests were conducted at zero forward speed in a large room and included the effects of flap deflection, proximity to the ground, a leading-edge slat, and end plates. A turning angle of about 70 degrees and a resultant force of about 100 percent of the thrust were achieved near the ground. Out of the ground-effect region, the turning angle was also about 70 degrees but the resultant force was reduced to about 86 percent of the thrust. | |
| language | English | |
| title | NACA-TN-3919 | num |
| title | Investigation of effectiveness of a wing equipped with a 50-percent-chord sliding flap, a 30-percent-chord slotted flap, and a 30-percent-chord slat in deflecting propeller slipstreams downward for vertical take-off | en |
| type | standard | |
| page | 40 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1957 | |
| contenttype | fulltext | |
| subject keywords | AIRPLANES | |
| subject keywords | COMPLETE | |
| subject keywords | DEVICES | |
| subject keywords | HIGH | |
| subject keywords | LIFT | |
| subject keywords | LONGITUDINAL | |
| subject keywords | PERFROMANCE | |
| subject keywords | PROPELLERS | |
| subject keywords | SLIPSTREAM | |
| subject keywords | STABILITY | |
| subject keywords | STATIC | |
| subject keywords | WINGS |