The internal horn turns ON and stays ON as long as the detector has power and the smoke sensor detects smoke.

An alphabetical index by subject is to be included in the Introduction, as an assistance in locating the desired circuit.

For simplicity of presentation and understandability, complex systems should be divided into system-function rather than overall master schematic diagrams.

The two most common types of engines used in helicopters are the reciprocating engine and the turbine engine.

Acetone is a heavy-duty degreaser suitable for metal preparation and removing grease from fabric covering prior to doping.

The main frame of the wing includes spars, ribs, stringers, integral fuel tank structure, tip tank supporting structure and frames around openings.

Illustrations should be used whenever they will simplify, shorten, or make the text easier to understand.

Units of measurements shown in manual must be consistent where practical.

The torsion link assembly transmits torsional loads from the axle to the shock strut.

Put a warning notice in the cockpit to tell persons not to operate the flight controls.

This torque shaft cannot move inboard. Thus, before you remove it, remove the outboard torque shaft.