FJ-44 Engine Miscellaneous

Question 1

What type of Bypass Duct?

Answer 1

Full Length

Question 2

Turbine blades ____ internal cooling

Answer 2

do not require

Question 3

High pressure compressor bleed air from ____ ports on the engine exterior and provide for aircraft:

Answer 3

two

pressurization, cabin air conditioning/heating, windshield defogging, and de-icing/anti-icing

Question 4

Fuel is injected into the combuster by a:

Answer 4

Fuel Slinger that atomizes and evenly delivers fuel

Question 5

N1 (inner) shaft connects the:

Answer 5

LP fan, IP compressor, and the two-stage, low pressure turbines supported by bearing 1 and 4

Question 6

N2 (outer) shaft connects the:

Answer 6

Single-stage, centrifugal compressor, and the single-stage, HP turbine. Supported by bearings 2 and 3

Question 7

Describe the combustion chamber.

Answer 7

Annular, reverse-flow combustion chamber

Question 8

What does it mean when the N1 and N2 shafts are concentric?

Answer 8

Concentric Shafts are two independently spinning shafts positioned on the same rotational axis, one is nested inside the other.

Question 9

Is the FJ-44 considered to be light weight?

Answer 9

Yes at 448lbs

Question 10

How would you describe this turbofans characteristics?

Answer 10

Medium bypass turbonfan (forward fan)

Question 11

How would you describe the compressor?

Answer 11

Twin Spool/split compressor