Drag Api

[pizzaboy150]

Hi Peeps,

I have been searching the forum for information on the drag system. Also looking in the api there are DragCubes.

My question is whether there is a function in the api that will give me the current force of drag acting on a vessel or whether I have to find all the variables and try and calculate it myself?

Any help appreciated!

[MrMcMuffin]

Hi pizza boy, try going to this link http://anatid.github.io/XML-Documentation-for-the-KSP-API/class_part.html#a64e1f9b7a9419f736b4446fba5b83d22

[sarbian]

The current drag for a part is p.dragVectorDir * p.dragScalar so you just have to loop the parts and add those.

[pizzaboy150]

Hi Chaps thanks for the help that has steered me in the right direction!

[pizzaboy150]

So I have started testing and the values seem very very high I was expecting small force values?

What unit is returned from p.dragVectorDir * p.dragScalar??

- - - Updated - - -

Oh perhaps the force is in Newtons not kN which I am now accustomed too?

[MrMcMuffin]

If you want to add code type {CODE}"your code here"{/CODE} replace {} with []

your code here

just thought I'd make your life easier.

[NathanKell]

What's returned is kilonewtons, same as engines use. However, you're getting each component individually; recall that when X, Y, and Z = 1, the magnitude is just sqrt(3), not 3.

If you want reference code, check out https://github.com/NathanKell/AeroGUI

Edited June 20, 2015 by NathanKell