747400sp From United States of America, joined Aug 2003, 3662 posts, RR: 2 Posted (8 years 2 months 4 weeks 1 day 7 hours ago) and read 2590 times:
I was thinking about how GE was able use the loud low by-pass F-101 design, and make a quiet High by-pass engine like the CFM-56. It got me to thinking, what if they took the loud high by-pass TF-39 and reduce it fan size and it's BPR to 2:0 and make a low by-pass version of it. So if GE was to make a low by-pass version of the TF-39 with afterburners, how much power do you think they could get out of it?
F14D4ever From United States of America, joined May 2005, 319 posts, RR: 4
Reply 1, posted (8 years 2 months 4 weeks 10 hours ago) and read 2554 times:
There's no reason to use the TF39 core for anything. It's ancient.
The F101 is ca. 31,000 pounds thrust (at sea level/static conditions).
Its derivative, the F110, is 29,000+. The next step up in thrust, the F136, already exists, with decades-newer technology in every component.
If in some alternate universe the TF39 core were used for a low bypass turbofan, I'd guess it would be in the 34-38,000 pound thrust class in afterburner.
Finally, please use the correct designations for these engines: F101, CFM56, TF39; no hyphen. A hyphen is used after the digits to designate subtype, such as CFM56-7, TF39-1C, or F110-129.