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Forum: Military Aviation

25th Sep 2021, 07:18

Replies: 160

USAF Fund B-52 Engine Replacement

Views: 59,995

Posted By tdracer

Rolls Indy was formerly Allison (they offered me...

Rolls Indy was formerly Allison (they offered me a job way back when) - so while the parent company is now British, they are still "American" engines.

Forum: Military Aviation

26th Jul 2021, 18:13

Replies: 160

USAF Fund B-52 Engine Replacement

Views: 59,995

Posted By tdracer

The nacelles are going to be all new (and most...

The nacelles are going to be all new (and most probably the struts). Modern fan-jet engines are much larger in diameter and tend to be significantly heavier due to the big fans and improved engine...

Forum: Military Aviation

25th Jul 2021, 00:06

Replies: 160

USAF Fund B-52 Engine Replacement

Views: 59,995

Posted By tdracer

Not too sure how much corporate prestige there is...

Not too sure how much corporate prestige there is in the re-engine of a 1950's bomber - heck most people don't know who makes the engines in the F-22 or B-2.
That being said, the RB211-535 (from the...

Forum: Military Aviation

23rd Jul 2021, 23:52

Replies: 160

USAF Fund B-52 Engine Replacement

Views: 59,995

Posted By tdracer

We were seriously looking at a B-52 re-engine...

We were seriously looking at a B-52 re-engine program over 20 years ago - math said the savings in fuel burn alone would pay for it. But apparently the USAF thought that giving the B-52 new life...

Forum: Military Aviation

23rd Jul 2021, 22:27

Replies: 160

USAF Fund B-52 Engine Replacement

Views: 59,995

Posted By tdracer

No doubt that will be taken into account in the...

No doubt that will be taken into account in the bid prices. In the commercial world, it's pretty common that the engine companies sell the engines for new aircraft at (or very near) cost - or even...

Forum: Military Aviation

23rd Jul 2021, 00:53

Replies: 160

USAF Fund B-52 Engine Replacement

Views: 59,995

Posted By tdracer

Looks like it's really going to happen this time:...

Looks like it's really going to happen this time:

https://www.defenseone.com/technology/2021/06/engine-replacement-could-keep-venerable-b-52-flying-through-its-100th-birthday/182687/

Forum: Military Aviation

9th Apr 2018, 20:47

Replies: 160

USAF Fund B-52 Engine Replacement

Views: 59,995

Posted By tdracer

It's not as dramatic as it used to be, but if...

It's not as dramatic as it used to be, but if you're going to fly it a lot (1,000 hrs./year) most bus jets cost more/hr. to operate than a 737. That's one thing that has really boosted the 737 BBJ....

Forum: Military Aviation

9th Apr 2018, 17:58

Replies: 160

USAF Fund B-52 Engine Replacement

Views: 59,995

Posted By tdracer

737 'Wedgetail' already exists for the AWACS...

737 'Wedgetail' already exists for the AWACS mission.
No need to re-invent the wheel - not that it would stop them from trying...

Forum: Military Aviation

8th Apr 2018, 01:44

Replies: 160

USAF Fund B-52 Engine Replacement

Views: 59,995

Posted By tdracer

You can remain the skeptic, but I've seen it. ...

You can remain the skeptic, but I've seen it. For example, around 1990, GE ran into a big problem with voids in the turbine blades for their new engines - and many of the suspect parts had made it...

Forum: Military Aviation

7th Apr 2018, 03:35

Replies: 160

USAF Fund B-52 Engine Replacement

Views: 59,995

Posted By tdracer

Etudiant, it's not that simple. Some of the...

Etudiant, it's not that simple.
Some of the manufacturing processes and alloys used 70 years ago have been effectively banned due to EPA and OSHA regulations. Newer processes and alloys result in...

Forum: Military Aviation

3rd Apr 2018, 19:22

Replies: 160

USAF Fund B-52 Engine Replacement

Views: 59,995

Posted By tdracer

Having dealt with all three on a regular basis...

Having dealt with all three on a regular basis (prior to my retirement), we had a saying:
"The worst engine manufacturer in the world is the one you're dealing with today"
That being said, based on...

Forum: Military Aviation

23rd Feb 2018, 22:32

Replies: 160

USAF Fund B-52 Engine Replacement

Views: 59,995

Posted By tdracer

Ken, modern FADECs can operate 'self contained',...

Ken, modern FADECs can operate 'self contained', but far from optimized (commonly referred to as 'failsafe' or 'get home' mode). I've been involved in integrating FADECs into the aircraft systems...

Forum: Military Aviation

23rd Feb 2018, 02:32

Replies: 160

USAF Fund B-52 Engine Replacement

Views: 59,995

Posted By tdracer

Ken I fear the USAF is going to find out just...

Ken
I fear the USAF is going to find out just how expensive it is to retrofit modern FADEC engines onto an analog airplane and discover they would have better off fixing the B-1 structures.
They...

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