This paper presents an overview of the test campaign performed on the Piaggio P.180 'Avanti' aircraft in order to develop and obtain the maximum natural laminar flow on the lifting surfaces. The paper reports the development of new profile family that could allow not only good laminarity flow characteristics in the aircraft flight envelope but also favorable pressure distribution and performance results. The wind tunnel and in-flight visualization as well as the effects of natural laminar flow airfoil contamination are herein described. Sublimating chemicals techniques have been employed to test the design airfoils even if this approach allowed only one test point per flight. Positive results were however achieved and demonstrated the positive effects of such a design philosophy.
Natural Laminar Flow Test in-Flight Visualization
1992
8 pages
Report
No indication
English
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