PlagueWielder

Hey

How do I convert inches/cm to degrees when measuring throw?

Thanks

PlagueWielder

Just thought about using the cos function but itll be too long

Any other ways?

MinnFlyer

My Feedback: (4)

Most of us don't bother. We use the T.L.A.R. principle (That Looks About Right).

In other words, pull back on the stick, if the elevator goes up, you're in good shape. If it barely moves, you need more, if it moves a LOT, you need less.

Once you fly it, you can decide whether or not you want to change it.

FHHuber

Typical trainer throws would be about 20 deg up and down elevator, 20 to 25 deg up on the ailerons and less down than up. (but not necessarilly differerent... its just better if it is different) 30 deg each way on rudder. 5 deg each way on the nosewheel. (less is better.)

Those throws will work for any typical trainer model. The reason you want a very small nosewheel deflection is it is VERY sensitive. The best way to sett it is use the hole closest to the servo arm retaining screw (at the servo) and the hole furthest from the steering block at the nosewheel. You will be amazed how tight the airplane will turn on the ground with a very small movement of the nosewheel.

Jim Schwagle

My Feedback: (1)

Take the inverse sin (arcsin) of the throw divided by the width of the elevator or aileron at that point, inches or cm, either, but be sure both measurements are in the same units. (Inverse sin, after performing the division.) Measure carefully, errors can compound to large differences.

Edit for clarification.

PlagueWielder

FHHuber, its not for a trainer but for a 3D model, I just thought this would be the right place to post.

Jim Schwagle, Thanks although I thought about using math. I guess its the only way.

a65l

My Feedback: (17)

Do a google search, there are tons of conversion sites on the web. Used one the other day setting up Super Sports 40, as the measurements are in MM's in the manual.

Andy

FHHuber

For a 3D model... the same throws will be OK for test flying and getting used to the model

When you get into some of the advanced 3D maneuvers you will want as much as 60 deg throw (some will go all the way to 90 deg... but more than 60 is essentially useless.) each way on ailerons, elevator and rudder.