Wind Tunnel Test of the Straight and Forward Swept Canards

  • Published : 2003.05.30


A low speed wind tunnel test for the canard airplane model was conducted in KARI LSWT. To measure the required level of accuracy, the image system was applied for all elevator deflection and different canard incidence conditions. By doing so, the difference in aerodynamic characteristics between the forward swept and straight canards can be precisely evaluated, and the pros and cons of both canards arrangements can be discussed. Compared with both canard configurations at the same incidence angle setting, the straight canard has benefits in lift and drag, and the slope of pitching moment increases more moderately than the forward swept canard. The listed data and discussion would be useful to whom wants to design a canard airplane.


straight canard;forward swept canard;drag-polar;canard airplane;image method


  1. C. Ostowari and D. Naik, Experimental Study of Three- Lifting Surface Configuration, Journal of Aircraft Vol. 25, No.2, 1988
  2. J. Rom, J. Er- EI and R. Gordon, Measurements of the aerodynamic characteristics of various wing-canard configurations and comparison with NL VLM results, 7th AIAA Applied Aerodynamics Conference July 31-Aug.2, 1989
  3. J. Chung. T. Cho, J Lee, B. Sung, "Wind Tunnel Test of a Canard Airplane", KSME lnternational Journal, Vol. 16, No.1, pp125-131, 2002
  4. B. Sung, et al, "Wind Tunnel Test of Canard Airplane", KARI-AD-TM-2000-12, 2000
  5. J. Chung, "KARI LSWT Operational Results ( The 2nd Wind Tunnel Test of a Canard Airplane)", KARI-AD-TM-2000-015, 2000
  6. S.A. Arnette, C.B. Porter, W.S. Meredith, J.M. Hoffman and B.Z. Sung, Aerodynamic Commissioning Results for the Korea Aerospace Research Institute Low Speed Wind Tunnel, AIAA- 2000- 0291, 38TH Aerospace Sciences Meeting & Exhibit, Reno, NV, 2000