![]() ![]() While the stalling speed of a particula airplane varies, the airplane will always stall at the same angle of attack regardless of airspeed, weight, load factor, or density altitude. The stalling angle of attack is independent of the speed of airflow over the wings. Which statement is true relating to the factors which produce stalls? Accordingly, it requires more power during approaches. The split flap creates the least change in pitching moment because, although it provides lift, it also results in considerably more drag than other types of flaps. Which type of flap creates the least change in pitching moment? When the airplane's nose moves farther from its original position, it has the undesirable characteristics of negative static stability. If the aircraft's nose initially tends to move farther from its original position after the elevator control is pressed forward and released, the aircraft displays When rolling out of a turn, the adverse yaw effect caused by the loweered aileron is more apparent than rolling into a turn, due to the higher angle of attack, wing loading, and the slower airspeed of the lowered wing wher rollout is started. The wing's angle of attack is greater as the rollout is started. When rolling out of a steep-banked turn, what causes the lowered aileron to create more drag than when rolling into the turn? As a result, gravity is not offset by as much vertical lift, and the sink rate increses. The vertical component of lift decreases. In a streight-and-level flight the vertical component of lift acts dirctly opposite to the component of gravity or weight. In a steep spiral (steep, descending turn), the wings are flying at a relatively low angle of attack and at a high airspeed.Īs the angle of bank is increased, the vertical component of lift Which characteristics of a spin is not a characteristic of a steep spiral?ĭuring a spin, both wings are stalled although 1 wing in less stalled than the other. Lift produced by an airfoil is the net force developed perpendicular to the relative wind.Įxperience a decrease in stability and a nose up change in moments.Īn Airplane will: require an increase in angle of attack to maintain the same lift coefficient, an increase in induced drug & thrust required, decrease in stability & nose up change in moment, reduction in static source & increase in indicated airspeed. Lift produced by an airfoil is the net force developed perpendicular to the Which statement relates to Bernoulli's principle?Īir traveling faster over the curved upper surface of an airfoil causes lower pressure on the top surface.īernoulli's principle states in part that the internal pressure of a fluid (liquid or gas) decreases at points where the speed of the fluid increases. ![]() Click here to study/print these flashcards.Ĭreate your own flash cards! Sign up here. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |