GravityHater
Well-known member
- Joined
- Aug 12, 2004
- Posts
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Is there a turbofan out there that can mechanically alter the bypass ratio in flight? Especially is there one in regular civilian use?
GravityHater said:of my question?
To learn things.
9GClub said:what would be the point of a variable bypass setup?
I agree, I'm pretty sure 9G is right. I think you've got it backwards.GravityHater said:"the turbojet is more efficient at low altitude;
the turbofan is more efficient at high altitude"
hindsight2020 said:whoa fellas, the SR-71 does not have a "variable bypass ratio" engine at all. Just like the MIG-21, they both have pure turbojet engines (read NO bypass) with variable GEOMETRY inlets.
9GClub said:It's also interesting to note how most intakes are offset a couple inches from the fuselage (perhaps most notably on the F-4/F-16) in order to avoid sucking from the boundary layer. If I'm not mistaken, the Raptor does NOT incorporate this design (i.e. the intakes are blended to the fuselage)..... wonder what the rationale is in that case....
mzaharis said:You may be thinking of Lockheed-Martin's F-35
fletch717 said:O.K dungeons & Dragon players, it's time get out of the basement and go look for some girls.