If the ground wire between the magneto and the ignition switch becomes disconnected, the most noticeable result will be that the engine

A precaution for the operation of an engine equipped with a constant-speed propeller is to

If a pilot suspects that the engine (with a fixed-pitch propeller) is detonating during climb-out after takeoff, the initial corrective action to take would be to

What type fuel can be substituted for an aircraft if the recommended octane is not available?