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4th Feb 2020, 22:14
Replies: 12,075
Views: 3,625,252
Posted By tdracer

Way to bash Boeing when we're talking about...

Way to bash Boeing when we're talking about LockMart...
Pick up a steel or Inconel fastener and a titanium fastener of the same size, and tell me you can't tell the difference (and if you're paying...
4th Feb 2020, 04:08
Replies: 12,075
Views: 3,625,252
Posted By tdracer

Maybe not visually, but titanium bolts feel like...

Maybe not visually, but titanium bolts feel like feathers compared to steel or Inconel bolts - they are much lighter...
I've used both and I can't imagine not noticing the difference in weight -...
28th Jun 2019, 21:57
Replies: 12,075
Views: 3,625,252
Posted By tdracer

OK, what's different about the F35 that the Ford...

OK, what's different about the F35 that the Ford class can't handle them? The linked article is strangely silent on what that might be.
26th Jun 2019, 20:54
Replies: 12,075
Views: 3,625,252
Posted By tdracer

External tanks on pylons would obviously be...

External tanks on pylons would obviously be highly adverse to the radar signature - but properly designed conformal tanks could have a minimal impact.
I wonder if it would be practical to design...
17th Jun 2019, 18:45
Replies: 12,075
Views: 3,625,252
Posted By tdracer

Not 100% positive about this, but I believe GE...

Not 100% positive about this, but I believe GE still uses the pyrometer system on the GE90-94B - not bothering to retrofit to the -1115B style EGT. Granted I don't think the GE90-94B is still in...
16th Jun 2019, 04:14
Replies: 12,075
Views: 3,625,252
Posted By tdracer

GE tried to use that pyrometer trick on the...

GE tried to use that pyrometer trick on the GE90-94B - didn't work as well in the commercial environment as it did on the military and they went back to a thermocouple based system on the GE90-115B...
14th Jun 2019, 18:15
Replies: 12,075
Views: 3,625,252
Posted By tdracer

Educated guess here, but it sounds to me like it...

Educated guess here, but it sounds to me like it the engine became EGT limited and cut back thrust unexpectedly.
Assuming that's correct (or at least close), the 'fix' would be easy - get rid of EGT...
28th Apr 2019, 00:46
Replies: 12,075
Views: 3,625,252
Posted By tdracer

Engines, I don't disagree with anything in your...

Engines, I don't disagree with anything in your posts. Pretty much every modern military aircraft has had issues during 'the early years'.
However, I can't recall another program where "the early...
17th May 2018, 21:17
Replies: 12,075
Views: 3,625,252
Posted By tdracer

As others have noted, it depends on how you...

As others have noted, it depends on how you define 'contested', but I can attest to the KC-46 being designed to be able to withstand some battle damage. For example, those wire separation...
5th Mar 2018, 16:57
Replies: 12,075
Views: 3,625,252
Posted By tdracer

Engines, according to those in the know (which...

Engines, according to those in the know (which I'm not), at least on the F-15 the conformal tanks resulted in no increase in airframe drag when subsonic, although transonic/supersonic was a different...
23rd Feb 2018, 02:41
Replies: 12,075
Views: 3,625,252
Posted By tdracer

Yea, opened about 5 hours after I made my thread...

Yea, opened about 5 hours after I made my thread drifting post :ugh:
I'll continue my discussion over there...
22nd Feb 2018, 02:16
Replies: 12,075
Views: 3,625,252
Posted By tdracer

Sorry for the thread drift, but I really don't...

Sorry for the thread drift, but I really don't see the logic behind mothballing the relatively new B1 and B2, while dumping vast money into the 60 year old BUFF (I'd estimate the re-engine program at...
14th Dec 2017, 01:23
Replies: 12,075
Views: 3,625,252
Posted By tdracer

Isn't Canada's fundamental problem with the F-35...

Isn't Canada's fundamental problem with the F-35 that they believe a single engine combat aircraft is inherently unsuitable for their climatically hostile (and remote) northern territories?
Hard...
13th Dec 2016, 03:58
Replies: 12,075
Views: 3,625,252
Posted By tdracer

Lifetime sounds excessive to me, but I do think a...

Lifetime sounds excessive to me, but I do think a "cooling off" period should be in order (I'm thinking five years).
However you need to be careful - people in procurement and similar high level...
22nd Aug 2016, 13:33
Replies: 12,075
Views: 3,625,252
Posted By tdracer

It's not just defense contracts - it permeates...

It's not just defense contracts - it permeates the industry. When we did our propulsion work statements for the 747-8, we found out later than someone higher up decided they were too high and...
11th Aug 2016, 19:29
Replies: 12,075
Views: 3,625,252
Posted By tdracer

Engines No, I didn't do anything to my post,...

Engines
No, I didn't do anything to my post, and at least when I look it's still there so I don't believe is was moderated out (post #9560 :eek:).
Much (most?) of what I know about the F-35 program...
6th Aug 2016, 04:44
Replies: 12,075
Views: 3,625,252
Posted By tdracer

Damn, now I have adult beverage all over my...

Damn, now I have adult beverage all over my keyboard :E
4th Aug 2016, 20:00
Replies: 12,075
Views: 3,625,252
Posted By tdracer

WTF-35: How the Joint Strike Fighter Got to Be Such a Mess

Interesting take on the F-35...

WTF-35: How the Joint Strike Fighter Got to Be Such a Mess (http://www.popularmechanics.com/military/a21957/wtf-35/?mag=pop&list=nl_pnl_news&src=nl&date=080416)
27th May 2016, 04:11
Replies: 12,075
Views: 3,625,252
Posted By tdracer

Restarting F-22 maybe isn't as far fetched as...

Restarting F-22 maybe isn't as far fetched as we're thinking?

http://www.nationaldefensemagazine.org/blog/Lists/Posts/Post.aspx?ID=2202


$500 million? What's that, the cost of 3 or 4 F-35s?
29th Apr 2016, 18:37
Replies: 12,075
Views: 3,625,252
Posted By tdracer

It would appear that we'll soon have some real...

It would appear that we'll soon have some real F-35 vs. A-10 data:


A-10 vs. F-35: Air Force warplanes to face off - CNNPolitics.com...
2nd Feb 2016, 16:02
Replies: 12,075
Views: 3,625,252
Posted By tdracer

I was watching the movie "Robocop" last weekend...

I was watching the movie "Robocop" last weekend (the 1987 version, which I think is a classic). This little quote seems applicable to the F-35 program:
4th May 2015, 10:55
Replies: 12,075
Views: 3,625,252
Posted By tdracer

Apologies for being a bit behind - I've been...

Apologies for being a bit behind - I've been traveling and pretty much off line for the last week+ - but I want to add my observations (and I invite Turbine D and Engines to disagree or pile on as...
6th Jan 2015, 18:17
Replies: 12,075
Views: 3,625,252
Posted By tdracer

Roughly 10 years ago, I voiced the opinion that...

Roughly 10 years ago, I voiced the opinion that the USAF should cancel the F-22 and go full out on the F-35.
Boy did I get that wrong - with the benefit of 20/20 hindsight, the F-35A isn't coming...
9th Dec 2014, 18:29
Replies: 12,075
Views: 3,625,252
Posted By tdracer

China doesn't sound too worried about the F-35

China doesn't sound too worried about the F-35
18th Sep 2014, 02:58
Replies: 12,075
Views: 3,625,252
Posted By tdracer

First, a disclaimer - new weapons programs...

First, a disclaimer - new weapons programs generate critics, regardless of the merit of the program or how well it is executed. I distinctly recall massive criticisms of the M1 Abrams tank - it was...
5th Sep 2014, 00:07
Replies: 12,075
Views: 3,625,252
Posted By tdracer

This seems like a bit of deja vu, all over again...

This seems like a bit of deja vu, all over again :=.


On the JT9D on the 747 and 767, we had problems with engine bending and compressor case distortion causing excessive tip rub, efficiency...
28th May 2014, 20:52
Replies: 12,075
Views: 3,625,252
Posted By tdracer

Problem is, if you don't have air superiority (or...

Problem is, if you don't have air superiority (or at least close to it), the life span of an LHA in a contested area will be measured in hours, perhaps even minutes. Unless the F-35B is a whole lot...
6th Feb 2014, 16:11
Replies: 12,075
Views: 3,625,252
Posted By tdracer

From ORAC's link:

So, making three different models with a high level of shared parts has lead to cost overruns? Wasn't the whole idea of having multiple models of the same airplane with a high level of commonality...
30th Jan 2014, 00:12
Replies: 12,075
Views: 3,625,252
Posted By tdracer

It occurs to me that what the Marines need is a...

It occurs to me that what the Marines need is a close air support aircraft. The A-10 is arguably the best close air support aircraft ever built, and it has neither speed nor stealth. The ability to...
Showing results 1 to 29 of 29


 
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