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NACA-WR-L-449
Wind-tunnel investigation of an NACA 23021 airfoil with two sizes of balanced split flaps
Year: 1941
Abstract: An investigation has been made in the NACA 7- by 10- foot wind tunnel of a large-chord NACE 23021 airfoil with a 15-percent-chord and a 25-percent-chord balanced split flap of 01ark Y profile, to determine the aerodynamic section characteristics of the airfoil-flap combinations as affected by the size, nose location, and deflection of the flaps. Section lift, drag, and pitching-moment characteristics are presented in the form of contours of flap nose location for given values of the lift, drag, and pitching-moment coefficients and complete aerodynamic section characteristics are presented for four representative locations of each flap. The two balanced split flaps are compared with a slotted-flap arrangement developed in a previous investigation.
Subject: AIRFOILS
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T17:27:22Z | |
| date available | 2017-09-04T17:27:22Z | |
| date copyright | 01/01/1941 | |
| date issued | 1941 | |
| identifier other | CMXYYDAAAAAAAAAA.pdf | |
| identifier uri | http://yse.yabesh.ir/std/handle/yse/150543 | |
| description abstract | An investigation has been made in the NACA 7- by 10- foot wind tunnel of a large-chord NACE 23021 airfoil with a 15-percent-chord and a 25-percent-chord balanced split flap of 01ark Y profile, to determine the aerodynamic section characteristics of the airfoil-flap combinations as affected by the size, nose location, and deflection of the flaps. Section lift, drag, and pitching-moment characteristics are presented in the form of contours of flap nose location for given values of the lift, drag, and pitching-moment coefficients and complete aerodynamic section characteristics are presented for four representative locations of each flap. The two balanced split flaps are compared with a slotted-flap arrangement developed in a previous investigation. | |
| language | English | |
| title | NACA-WR-L-449 | num |
| title | Wind-tunnel investigation of an NACA 23021 airfoil with two sizes of balanced split flaps | en |
| type | standard | |
| page | 34 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1941 | |
| contenttype | fulltext | |
| subject keywords | AIRFOILS | |
| subject keywords | BALANCED | |
| subject keywords | CHAR | |
| subject keywords | CLARK | |
| subject keywords | FLAPS | |
| subject keywords | FOWLER | |
| subject keywords | MOMENTS | |
| subject keywords | NACA | |
| subject keywords | ORDINATES | |
| subject keywords | SLOTTED | |
| subject keywords | SPLIT | |
| subject keywords | WING |