The maintenance of the flying fleet at the Museum includes running the engines to check the performance, functioning of fuel and ignition systems and operation of the propeller mechanism. Advantage is taken of a break in the weather to bring the radial engines to life with a bark from the engine and a puff from the  exhaust to protest the enforced idleness in the hangar.

The Waco AQC-6 coughs to life.

The Harvard protests being awoken in mid winter.