Algodoo

I messed with the phn file so that you don`t have to. It`s not hard, though. Just make a block (or ball, or whatever), save it, open the file with notepad, find the variable for the air friction multiplier of that block, and change it to whatever you want, then save it.
One block has 1000x airfriction, the other block has -1000x airfriction. Feel free to resize, clone, etc to make... whatever it is you want to make... with them. Good for propellers, and the negative one is also good for helping cars to achieve ridiculous speeds. If you make a request in the comments I`ll post some blocks or other shapes with different airfriction multipliers (500, -100, over nine thousand, etc), but it`s not too hard to do yourself. The simpler the scene is when you mess with the blocks, the easier it is to find the right variable.