Sketch physics Prop driven

iichiversii

Ok im new to sketch physics and to be honest im learning fast, but i have found myself a problem with a little project im working on, ok here it is,

i have a submarine with a prop attacted as you would, ialso have the prop rotating to give my submarine propeltion, hoping the prop would drive my sub in a forward motion which it didnt, ok the sub floats and the prop rotates as it should but the prop doesnt react with the water, what state do i need to assign to the prop to do this, or are my completely doing something that doesnt work in sketch physics, please help me out here

mitcorb

Hi:
See this link to SP faq. It is a persistent or "sticky" thread:
http://www.forums.sketchucation.com/viewtopic.php?f=61&t=17914#p143877

Discusses joints thrusters emitters.

DanYHKim

I don't think this can be done. You can assign a "thruster" parameter to your submarine, and then it will travel forward, but it will not be driven directly by the propeller. A propeller works kind of like a screw thread cutting through the relatively low density water*, but won't interact with a surrounding medium in SketchyPhysics in this way.

Yes, I know that this is wrong in many ways. Please don't let this spawn a side-discussion on propellors and aerodynamics.