How to Apply the Torque Fix to Your Aircraft

X-Plane 10.45 beta 1 fixes a bug in X-Plane’s flight model where props applied too much torque to the aircraft. The effect is most noticeable on single engine aircraft where the prop torque is applied along the center of the fuselage.

Authors: in order to have the new correct torque applied to your aircraft, you must resave your aircraft in Plane-Maker 10.45. When X-Plane finds an aircraft authored with an old Plane-Maker, which includes all existing aircraft already shipped, we preserve the old torque behavior.

We put in this compatibility because some aircraft have plugins and other work-arounds that try to get correct flight dynamics assuming X-Plane will apply too much torque.  If we were to apply the fix to these planes, they’d then have too little torque (because we’d apply less torque and the work-around would already be in place). So this is an opt-in fix.

Authors: if you use Plane-Maker 10.45 to work on your aircraft, you will be opted in to the fix!  There is no way to work on a new aircraft and preserve the old torque. Our thinking is: the old torque calculating is physically wrong, so we’re not letting anyone preserve this mistake when working on a new aircraft.

So when you bring your aircraft in for its next feature update, note that you will be getting the torque fix and you should make sure the results are useful.

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About Ben Supnik

Ben is a software engineer who works on X-Plane; he spends most of his days drinking coffee and swearing at the computer -- sometimes at the same time.
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6 Responses to How to Apply the Torque Fix to Your Aircraft

  1. rivegauche610 says:

    How do we non-programmer users fix our pre-10.45b1 aircraft?

  2. Maurice Cohen says:

    How do we (mere users) identify the version of Plane-Maker that was used to author a plane?

  3. Johannes Bergmark says:

    Will this solve the problem with twin engine props taxiing with only one engine?

    I.e. AN24 and the Saab 340 is impossible to taxi with only one engine.

Comments are closed.