The air engine
Engineers (Advanced), mission M7 Fluid Power, lesson 4 of 6.
Hook
Steam engines used pushed steam. Our engine uses pushed air!
Fair test
Pump the tank to a set number of strokes. Count engine turns until it stops.
Bonus challenge
Get the most turns from 20 pump strokes.
The build
Air Engine: A cylinder turns a crank and flywheel; the crank flips a valve at the right moment, so compressed air keeps the wheel spinning.