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Engine shutting down mid air


abbod31

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It is a Mach 2 jet, at high altitude. No piloted aircraft I know of will do Mach 2 on the deck, the air is too dense and the aircraft either lacks the excess thrust or lacks the structural integrity, usually the latter.

 

Your maximum speed is 1,300km/h IAS. At high altitude, this allows you to reach about Mach 2.05, or 2.1 if you feel like pushing your luck.

 

Here's how to avoid flameouts in the 21:

 

- Don't exceed 1,300km/h IAS at any altitude.

- Don't make rapid throttle movements at high altitude, especially cutting to idle.

- Don't force the nose down for more than a second or two. Zero or negative G stops the main fuel tanks feeding into the service tank properly and the engine will suck it dry in a matter of seconds.

- Don't mess with the nose cone, the automated system is there for a reason.

 

Tailslides can cause some issues too, I think, but that might be another manifestation of the negative/zero G fuel flow problems.

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should overspeed be a problem ? isn't it a Mach 2 jet?

The engine can only cope with 1300kph IAS, above that it dies. It is a Mach 2 aircraft though.

 

IAS is very altitude dependent. Mach is too (to a lesser degree).

 

1200kph IAS at sea level = ~1200kph actual speed

1200kph IAS at 30,000m = ~2200kph actual speed ( > Mach 2)

 

Mach 1 at 0m (sea level) is ~1225kph

Mach 2 at sea level is ~2450kph

Mach 1 at 30,000m is ~1086kph

Mach 2 at 30,000m is ~2172kph

 

 

tl;dr: keep IAS below 1300kph, for high mach numbers, fly very high.


Edited by Buzzles
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