Top_Gunn

My Feedback: (6)

Certainly not.

golf4two

Thank you so very much....that is simple enought for even me to understand! It will come in handy many times over as I really love to scratch build my own designs.
Thanks again,
=Rick=

saramos

Use the calculator. Sin(degrees of throw) X cord of the control surface at the point the measurement is taken. For example if you are doing an elevator and the width of the control surface is 4 3/4" where you are making the measurement, and the desired throw is 12.5 degrees up, it would be sin(12.5) X 4.75, and 14 degrees down it would be sin(14) X 4.75
Using the windows calculator, this comes out to be .974" of up throw and 1.149" down throw.

Scott

saramos

You can do the same for a wing dihedral. Say you need 2 degrees dihedral for a plane with a wingspan of 64.5", you would do the calculation for half the wingspan. sin(2) X 32.25 for an answer of 1.126" For a dihedral of 6 degrees for the same plane it would be sin(6)X32.25 for an answer of 3.371"

Scott

cymaz

I made my own from this plan

This is the site.....http://www.grahamlegg.talktalk.net/Throwgauge.html

mkoe

Here's a quick PDF just made.

larryjd

I made a spreadsheet several years ago that allows one to print out a chart where you look up the control surface width in inches on the left column and then the deflection in inches on the top row. At the intersection you will get the degrees for that combination. If anyone is interested in a copy of that spreadsheet just send me an email at [email protected]. The sheet goes from 1/8" control surface width to 7 1/2" control surface width. There are also 2 cells available where you can input your own numbers to calculate the degrees of deflection. I have found this also useful to calculate engine down thrust and right thrust calculations.