Vacuum Engine - Power Test

I was wondering how much power has my engine, so I made this simple test: I fixed one end of the thread to the crankshaft and the other to the simple carriage made of LEGO :) Then I started the engine and the carriege with a load was pulled up a ramp. On this video you can see the engine pulling about 470 grams (carriage + weights) on height of 90 cm in about 13,4 seconds, which gives enormous useful power - 0,32 W ;) Just enough to light up a few small LED's :)

[@ballHand]

cool