Algodoo

i got this engine to preform almost flawlessly simply by increasing the strength of the spring on the "spark plug" to 1.0. the engine would then run at a relatively constant speed (a few misfires here and there) in a single direction.

such a shame that it can't run for for than 2 revolutions without changing direction.

nice! it flew over 1.2 km straight up before it started it's decent!