Does anyone one know where an inches to degrees converter is? In the manuel to my OMP Edge the amount of throw is in degrees, my lil deflection gauge measures in inches and mm. So what can I do?

Its going to be a formula...remember that geometry/algebra you thought you would never need Essentially think of your controle surface as a Isosceles triangle where the length (chord) of the control surface is two sides of the triangle. and you want to know what the length of that other side (your deflection in one direction) is. Now, I have found a web site if your so inclined to figure it out it is here: http://www.ajdesigner.com/phptriangl...erimeter_s.php

However if this plane is an OMP profile 3D flyer. Max that sucker out, dial in a good bit of expo and go have fun with it.

Here is a link with a download to a conversion chart:

http://www.aeroperfect.com/degree.html

or...maybe purchase an inexpensive protractor and mark degrees your existing gauge?

Go to the local grocery store. In the school supplies aisle will be a cheap plastic protractor.

Use Pythagorean Theorem:

http://en.wikipedia.org/wiki/Pythagorean_theorem

then the angle opposite the right angle is your angle. The height opposite that angle is your inches.

CGr.

All that math hurt my head!!! A cheap plastic protractor and a piece of paper and a pencil. I did make up a bunch of degree meters for measuring my control throws so I can avoid all that thinking stuff. For things like engine offset the protractor and a ruler works out great and it's easy.

Don't even bother buying a cheap protractor. This will work just fine!!

Ken

Thanks guys, I already have a protractor and I just didnt think about using it[&:]. I can't wait to get this bird flying

At a distance of one inch from the origin, a line that rises at an angle of one degree from the origin will be 17/1000 of an inch high. Knowing that, it's easy to calculate the figures you need.

Home made degree meters and how to line out to get the engine thrust. I lined out a two degree thrust with a ruler and protractor. To find out how far to the left you will need to move over the engine for off set you just measure from the back of the engine mount {when the engine is mounted} to just behind the thrust washer on the crank. Then on the lined out paper if your thrust washer is say four inches from the back of the mount just measure across the lines at four inches, that's how far you have to off set the engine on the fire wall to have the carnk centered in the cowl.
I make up the meters with scrap ply and give them out to friends at the field. You can buy much better meters from Central Hobbies but I don't want to part with my money any more then I want to burn out my brain cells with all that thinking stuff!!

That's worse than my "Pathagorean Theorem" method.. [X(]