In article ,
"Tarver Engineering" wrote:

Read up on the RR F-35 engine offering and also see the test results for the
F-22. One is short of expectations and the other looks like a trick.

....except for the needed "trump" of offering half the fuel economy o do
what you claimed.

--
cirby at cfl.rr.com

Remember: Objects in rearview mirror may be hallucinations.
Slam on brakes accordingly.