Term

Card 1 — Front: Multi-Engine 28 Volt Turbine Electrical System (title)

Definition

Back: Trainer board showing how two turbine generators, battery, relays, regulators and buses interact; used for teaching. Sustained by the bench power or connected aircraft battery during demonstrations.

Term

Card 2 — Front: Battery / Master (ON / OFF)

Definition

Back: Main power switch that connects the battery to the electrical system. Works like a main breaker; when ON it energizes buses and enables starters. Sustained by a charged battery and clean switch contacts.

Term

Card 3 — Front: LH Starter-Generator

Definition

Back: Acts as starter motor during start then as generator once the engine runs. Mechanically driven by engine when generating; electrically driven from battery for starting. Sustained by engine drive, regular brush/armature maintenance.