![]() ![]() Most planes have ailerons on the wings, located as outboard as possible. Furthermore, assuming a typical canard proportion with a small canard/big wing, this is not an efficient way to roll the airplane. You must dip into the lifting capacity (already taxed) of this surface. To ask the canard to provide the roll couple is asking too much. ![]() It immediately exceeds its limit, stalls and the plane goes to the ground like a stone. ![]() The left-hand canard compensates, going to a greater angle of attack to keep the nose from dropping. The right-hand canard tips down, shedding lift to start the roll. You initiate a bank, rolling the plane to the right. The main wing is running about 4 degrees angle of attack, the canard is at 6 to 8 degrees - on the edge of stalling. Let's envision a typical scenario: Your plane is flying along at near minimum speed, probably right after takeoff or just before landing. In fact, the idea is that it stalls first (softly we hope), before the main wing, and puts the aircraft into a nose down attitude to resume flying speed rather than falling out of the sky - which is what usually happens if the main wing stalls. This reduces its capability to handle additional loads. For the sake of pitch stability, the canard surface will be running at a higher loading per square unit of area. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |