M15.3

Question 1

What is ram compression

Answer 1

Increase in pressure within the intake at increasing forward speeds

Question 2

Intake duct is divergent which cases what

Answer 2

An increase in static pressure

Question 3

The inlet is classed as a cat.1 area, how much damage can be on it

Answer 3

Minimal.

Question 4

Compressor inlet velocity should be between?

Answer 4

.4 and .7 Mach.

Question 5

Pitot intakes maximum Mach number is

Answer 5

1.5

Question 6

in a transonic duct A normal shockwave will produce?

Answer 6

An increase in pressure and temperature with a decrease in velocity before the air enters the duct

Question 7

Pitot intake efficiency range

Answer 7

96 to 99%

Question 8

3 different types of shockwaves

Answer 8

Normal, oblique and bow.

Question 9

What is an oblique shock wave.

Answer 9

Smaller shockwave than a normal, it slows supersonic air flow from supersonic to slower supersonic without a massive change in energy.

Question 10

Variable geometry intakes use what to overcome the buzz effect.

Answer 10

Bleed air door

Question 11

How is the engine intake de-iced

Answer 11

Bleed air straight from the engine or electrical mats.