seanychen
Posts: 2914
Joined: 7/20/2002 From: Canton,
MI, USA Status: offline
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The reason for right thrust has been discussed in the aerodynamic forums. I just want to briefly point out here that right thrust helps to compensate the yaw tendency caused by propeller producing a CCW spiraling thrust (as viewed from in front of the plane) as it goes past the fuselage and tail. Since more vertical fin occupy the space where the top half of the spiral, a left-yaw tendency is produced. Right thrust is added to compensate this prop-spiral yaw effect. This is not torque, persay. Torque is in the rotational axis, so torque would cause the airplane from rolling, not yawing, to the left. This effect is generally not noticeable at flying speed. At low speed, where the wing wouldn't effectly counteract the torque, you will see engine/prop torque causing roll to the left, especially with throttling action. Hence you have torque roll. I also see this effect while taking off on water: my left float will dip into the water more when I advance the throttle.
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E_Total = M*G*H + 1/2 M*V^2 When H=0, all of airplane's velocity becomes crash energy!
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