PPRuNe Forums - Search Results

Search: Posts Made By: PeterKent

Showing results 1 to 4 of 4
Search took 0.00 seconds.

Forum: Tech Log

15th Feb 2020, 21:32

Replies: 56

Turbojet Axial Rotor Thrust - SR-71

Views: 13,059

Posted By PeterKent

Maybe it's better not to use words like create...

Maybe it's better not to use words like create /produce/ provide.
The inlet feels (as we would if trying to stop it moving) a thrust or drag force because air is flowing through it. It doesn't...

Forum: Tech Log

15th Feb 2020, 14:57

Replies: 56

Turbojet Axial Rotor Thrust - SR-71

Views: 13,059

Posted By PeterKent

Yes. They had an existing engine which fitted in...

Yes. They had an existing engine which fitted in the allowed nacelle diameter. The challenge was modifying the existing engine with least carve-up possible and still give what was required, hence no...

Forum: Tech Log

14th Feb 2020, 01:27

Replies: 56

Turbojet Axial Rotor Thrust - SR-71

Views: 13,059

Posted By PeterKent

ref Megan's original question : "at cruise,...

ref Megan's original question :

"at cruise, the rotor of the engine actually has a small negative thrust load on the engine" from Richard Graham's book . He was obviously repeating an explanation...

Forum: Tech Log

8th Dec 2017, 21:29

Replies: 15

Contra Rotating Turbofan

Views: 6,161

Posted By PeterKent

You may find this GE36 design report a start,...

You may find this GE36 design report a start, counterrotating without a duct.
ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19900000732.pdf

See for example fig 5-9

Showing results 1 to 4 of 4