Climb Performance of Piston-Propeller Airplane with Cambered Wing and Variable Propeller Efficiency

Cavcar A.

JOURNAL OF AIRCRAFT, vol.48, no.5, pp.1701-1707, 2011 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 48 Issue: 5
  • Publication Date: 2011
  • Doi Number: 10.2514/1.c031351
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1701-1707
  • Anadolu University Affiliated: Yes


More accurate analytical solutions of the maximum rate of climb and maximum climb angle are proposed for the climbing flight of the piston-propeller airplane. For the solutions, it is assumed that the propeller efficiency is a function of the airspeed and the airplane has cambered wing drag polar. The solutions are compared with the performance calculated through traditional assumptions of a constant propeller efficiency and a symmetrical wing drag polar. Moreover, the quartic equation to find the best climb angle speed is solved exactly. The comparison proved that the solutions with traditional assumptions result in a higher service ceiling, a shorter climb time, and a shorter climb distance.