70A Constructional arrangement and operation
TTP B1-L3 ATA 70A Beech 90 Series B2-L1 Constructional arrangement and operation The engine is d i vided into eight major sections as foll o ws: 1. Compressor air inlet 2. Compressor 3. Com b ustion chamber 4. Compressor turbine 5. Po w er turbines 6. Exhaust 7. Reduction gearb o x 8. Accesso r y dr i v e gearb o x Comp r essor Air Inlet The compressor air inlet, at the rear of the engine, fo r ms the main air inlet to the g as generator. The inlet includes a circular light all o y casting fo r ming a plenum chamber to all o w air to enter the compresso r . An int e g ral oil tank is pa r t of this assem b l y , immediate l y to the rear of the inlet plenum chambe r . The inlet assem b l ...