# Do multi engines face the torque effect?

Do multi engines face the torque effect? What about jets?

• By "torque effect" do you mean p-factor? Or some kind of rolling effect due to a high power engine? May 14, 2017 at 1:36
• @RonBeyer to be fair, if the OP understand the difference between torque and p-factor, he would not be asking this question. May 14, 2017 at 12:20
• I know that the torque effect is the left-turning tendency an aircraft has. Don't know what p-factor is (the Wikipedia explanation is a bit complicated). Any videos?
– TayE
May 14, 2017 at 13:11
• With all engines operating or one or more engines inoperative?
– J W
May 16, 2017 at 17:16

Maybe you mean the p-factor. If both engines are rotating clockwise, the plane yaws to the right. If one rotates clockwise, the other counter-clockwise, the effect cancelles out and the plane flys straight.

• What about the effect of the two engines operating at different speeds? Is that significant? May 20, 2017 at 23:16
• @TannerSwett I think so. The p-factor is directly proportional with the speed of the prop. Now, if one engine operates at a different speed, the plane will yaw into the direction of the faster engine. (Apart from the fact that the thrust is applied asymmetrically) May 22, 2017 at 15:22