Effects of wing and canard sweep on lift enhancement of canard configurations

The effect of the wing's and canard's sweep angles on lift enhancement of a delta-wing/canard configuration at low to high incidence was studied using force measurement. The wing sweeps varied from 40 to 75 degrees and the canard sweep varied from 40 to 80 degrees. It was found that at certain angle of attack (AOA), the canard configurations of the lower sweep wings have a greater benefit from the effect of lift enhancement. It was also found that with regards to the canard configurations of certain sweep wings having lift enhancement effect, the effect of the canard sweep on the lift enhancement varies with AOA, but at each AOA, an optimum canard sweep for lift enhancement exists.