A distributed suction high-lift boundary layer control system fitted to a standard liaison L-19 aircraft increased the aircraft CL max to 5.74 and decreased the take-off and landing distance over a 50-foot obstacle by 38 percent and 29 percent, respectively, with no increase in available power. The modified aircraft demonstrated acceptable stability, control, and handling characteristics in all flight phases, and the stalling characteristics were good, with no rolling tendency. Considerable structural modifications were necessary to obtain the above results. The small holes in the boundary layer control system operated quite successfully for a period of 5 years without clogging due to dust or rain. (Author)
Flight Test Evaluation of a Distributed Suction High-Lift Boundary Layer Control System on a Modified L-19 Liaison Aircraft
1966
2 pages
Report
No indication
English
Distributed Suction Boundary Layer Control for High Lift
SAE Technical Papers | 1968
|Distributed suction boundary layer control for high lift
Engineering Index Backfile | 1968
|Flight experiments on suction for high lift
AIAA | 1965
|