درباره ما
NACA-ARR-L5G25
Wind tunnel investigation of control-surface characteristics XXIII : a 0.25-airfoil-chord flap with tab having a chord twice the flap chord on an NACA 0009 airfoil
Year: 1945
Abstract: SUMMARY
Wind-tunnel tests have been made to determine the aerodynamic section characteristics of an NACA 0009 airfoil with a plain flap having a chord 25 percent of the airfoil chord and a balancing tab having a chord 50 percent of the airfoil chord or 200 percent of the flap chord so linked that the tab would deflect at a given rate with respect to the flap. Three linkage ratios were tested on the model.
The tests indicated that the flap and tab could be linked to give hinge-moment balance with flap deflection and with angle of attack and yet have greater lift effectiveness than a plain flap of similar size with a conventional balancing tab having a chord 20 percent of the flap chord linked to give hinge-moment balance with flap deflection only.
Wind-tunnel tests have been made to determine the aerodynamic section characteristics of an NACA 0009 airfoil with a plain flap having a chord 25 percent of the airfoil chord and a balancing tab having a chord 50 percent of the airfoil chord or 200 percent of the flap chord so linked that the tab would deflect at a given rate with respect to the flap. Three linkage ratios were tested on the model.
The tests indicated that the flap and tab could be linked to give hinge-moment balance with flap deflection and with angle of attack and yet have greater lift effectiveness than a plain flap of similar size with a conventional balancing tab having a chord 20 percent of the flap chord linked to give hinge-moment balance with flap deflection only.
Show full item record
| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T17:11:57Z | |
| date available | 2017-09-04T17:11:57Z | |
| date copyright | 01/01/1945 | |
| date issued | 1945 | |
| identifier other | YTUYYDAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/135436 | |
| description abstract | SUMMARY Wind-tunnel tests have been made to determine the aerodynamic section characteristics of an NACA 0009 airfoil with a plain flap having a chord 25 percent of the airfoil chord and a balancing tab having a chord 50 percent of the airfoil chord or 200 percent of the flap chord so linked that the tab would deflect at a given rate with respect to the flap. Three linkage ratios were tested on the model. The tests indicated that the flap and tab could be linked to give hinge-moment balance with flap deflection and with angle of attack and yet have greater lift effectiveness than a plain flap of similar size with a conventional balancing tab having a chord 20 percent of the flap chord linked to give hinge-moment balance with flap deflection only. | |
| language | English | |
| title | NACA-ARR-L5G25 | num |
| title | Wind tunnel investigation of control-surface characteristics XXIII : a 0.25-airfoil-chord flap with tab having a chord twice the flap chord on an NACA 0009 airfoil | en |
| type | standard | |
| page | 59 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1945 | |
| contenttype | fulltext |