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2 votes
2 answers
1k views

Why do jet nozzles close at different rates?

After recently seeing the trailer for Top Gun 2, I was reminded of something that I always wondered about: why do the nozzles of some jet aircraft seem to close at different rates? Sure, it's likely ...
F16Falcon's user avatar
  • 395
7 votes
1 answer
2k views

How does the Pratt & Whitney F119 achieve its features?

The Wikipedia article on the Pratt & Whitney F119 that powers the F-22 says the following: The high pressure and low pressure turbines are single stage and counter-rotating, thus shortening ...
user avatar
7 votes
1 answer
1k views

Will afterburner work at settings less than full dry thrust?

Dry thrust is normal jet engine power without using an afterburner. Max dry thrust is the engine's most powerful thrust level without afterburner. But what if the engine is at half power, or even ...
DrZ214's user avatar
  • 17.9k
25 votes
6 answers
70k views

What is an afterburner and how long can a jet fly on afterburner?

I heard this word so many time in military documentary about jets, especially fighter jets, but I don't fully understand what it is or how it works. In a documentary from the Discovery Channel, all ...
TBBT's user avatar
  • 1,862