Chapter 2.1.1/2 Powerplant

Question 1

What type of engine is in the 60R
What are its sections

Answer 1

T700-GE-401C
5 sections - Inlet, compressor, combustor, turbine, exhaust

Question 2

What is in the inlet section

Answer 2

Inlet cowling, swirl frame, front frame, main frame, accessory sections, and scroll case.

Waterwash manifold is an integral part of the swirl frame

Question 3

How does air flow through the inlet section

Answer 3

Flows through inlet cowling which can be heated by 5th stage bleed air

Passes through the swirl vanes which imparts rotation

Rotation causes particles to be thrown outward into the IPS and outboard

IPS discharge passes over the scroll vanes

Proceeds through the deswirl vanes which remove the rotation

Question 4

Compressor Section

Answer 4

5 stage axial
single stage centrifugal

Question 5

Combustion Section

Answer 5

Flow through, annual combustion chamber, two igniters, and 12 fuel injectors

Question 6

Ng Turbine

Answer 6

Two-stage air cooled
Ng drives the compressor and AGB

Question 7

Np Turbine

Answer 7

Two-stage air cooled Coaxial shaft
Turn the power turbine shaft which connects to the high speed shaft connected to the input module

Question 8

Where is TGT sensed?

Answer 8

Between Ng and Np turbine

Question 9

Engine Airflow

Answer 9

30% used for combustion
70% used for T2, P3, cooling, and engine oil seal pressurization

Question 10

AGB

Answer 10

Driven by a rotor via a radial drive shaft from Ng turbine
Provides mounting pad for Alternator, starter, HMU, ODV, boost pump