F-15EX

Military aircraft - Post cold war aircraft, including for example B-2, Gripen, F-18E/F Super Hornet, Rafale, and Typhoon.
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madrat

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Unread post24 Feb 2021, 01:54

I'd rather them replace F-15E units and send the older jets to do their work. Give the mud movers that shoulder an actual workload the lovin' over a new imagined role.
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zero-one

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Unread post02 Mar 2021, 02:27

The PW-F299 is 29,000 lbs class
The GE-129 is also 29,000 lbs class.

Everything we heard so far is that both engines will give you comparable performance with subtle differences here and there.

So why is the EX seemingly rated at a higher max altitude and heavier max payload? Fly-by-wire advantages? Structural advancements? Secret sauce?
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Corsair1963

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Unread post02 Mar 2021, 02:32

Notice that it doesn't show a higher maximum take off weight for the F-15EX either........... :|
Last edited by Corsair1963 on 02 Mar 2021, 03:02, edited 1 time in total.
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Corsair1963

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Unread post02 Mar 2021, 03:00

madrat wrote:I'd rather them replace F-15E units and send the older jets to do their work. Give the mud movers that shoulder an actual workload the lovin' over a new imagined role.


I wouldn't be surprised if F-15EX's just don't replace and/or augment the existing F-15E Fleet. As some of the F-15C Units are already converting to the F-35A not the F-15EX....


Clearly, they don't need 144+ F-15EX's to replace the few remaining F-15C's. So, my guess is after they replace a number of the F-15C Units. (Oregon Air National Guard for example) They just switch over to the Strike Role. Currently, being performed by the Strike Eagles.

Hell, at that point they may transfer the aforementioned (ANG F-15EX) too! Then replace them to with the F-35A........
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zero-one

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Unread post02 Mar 2021, 03:32

Corsair1963 wrote:Notice that it doesn't show a higher maximum take off weight for the F-15EX either........... :|

Exactly, so is the empty weight lower?
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Unread post02 Mar 2021, 03:48

zero-one wrote:
Corsair1963 wrote:Notice that it doesn't show a higher maximum take off weight for the F-15EX either........... :|

Exactly, so is the empty weight lower?

No. The "payload weight" is a pylon weight issue. Two extra pylons means more "payload weight". With the same max weight the extra pylons are a farce for anything other than pure A-A work. No F-15E ever went to combat without the wing tanks, and I see no reason the EX won't also. When the SA (the same plane) went through Star Wars Canyon with a full AA load it still had drop tanks and targeting pods. The reality is that with full CFTs and the Wing tanks the F-15E only has a payload of 11,211lb remaining before hitting Max Gross.
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Corsair1963

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Unread post02 Mar 2021, 03:59

sprstdlyscottsmn wrote:
zero-one wrote:
Corsair1963 wrote:Notice that it doesn't show a higher maximum take off weight for the F-15EX either........... :|

Exactly, so is the empty weight lower?

No. The "payload weight" is a pylon weight issue. Two extra pylons means more "payload weight". With the same max weight the extra pylons are a farce for anything other than pure A-A work. No F-15E ever went to combat without the wing tanks, and I see no reason the EX won't also. When the SA (the same plane) went through Star Wars Canyon with a full AA load it still had drop tanks and targeting pods. The reality is that with full CFTs and the Wing tanks the F-15E only has a payload of 11,211lb remaining before hitting Max Gross.



Yes, and it appears the F-15EX will have a similar limitation.......... :shock:
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sferrin

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Unread post02 Mar 2021, 14:24

sprstdlyscottsmn wrote:
zero-one wrote:
Corsair1963 wrote:Notice that it doesn't show a higher maximum take off weight for the F-15EX either........... :|

Exactly, so is the empty weight lower?

No. The "payload weight" is a pylon weight issue. Two extra pylons means more "payload weight". With the same max weight the extra pylons are a farce for anything other than pure A-A work. No F-15E ever went to combat without the wing tanks, and I see no reason the EX won't also. When the SA (the same plane) went through Star Wars Canyon with a full AA load it still had drop tanks and targeting pods. The reality is that with full CFTs and the Wing tanks the F-15E only has a payload of 11,211lb remaining before hitting Max Gross.


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Unread post02 Mar 2021, 14:30

zero-one wrote:..........and heavier max payload? Fly-by-wire advantages? Structural advancements? Secret sauce?


Same as that info-graphic - Boeing also list 81,000 lbs max gross on their site for the new Eagles which was the same as the original F-15E.

https://www.boeing.com/defense/f-15/#/t ... ifications

Not clear what that other weight figure is - they are not saying 8)
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Unread post02 Mar 2021, 17:08

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h-bomb

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Unread post03 Mar 2021, 01:37

basher54321 wrote:
zero-one wrote:..........and heavier max payload? Fly-by-wire advantages? Structural advancements? Secret sauce?


Same as that info-graphic - Boeing also list 81,000 lbs max gross on their site for the new Eagles which was the same as the original F-15E.

https://www.boeing.com/defense/f-15/#/t ... ifications

Not clear what that other weight figure is - they are not saying 8)


It's been a few decades but wasn't 81K lbs an overload weight? 72k lbs was normal weight, over that you had to do a landing gear inspection? Or in the last 2 decades did the Strike Eagles get uprated gear?
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Unread post03 Mar 2021, 03:41

h-bomb wrote:It's been a few decades but wasn't 81K lbs an overload weight? 72k lbs was normal weight, over that you had to do a landing gear inspection? Or in the last 2 decades did the Strike Eagles get uprated gear?

They exceed 72klb in an air to air load. That may be a landing weight, but it is not a take-off weight.
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Unread post03 Mar 2021, 11:38

From what the Dash 1 states the F-15E was even designed to land at its max gross of 81,000 lbs.
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Unread post03 Mar 2021, 13:50

h-bomb wrote:It's been a few decades but wasn't 81K lbs an overload weight? 72k lbs was normal weight, over that you had to do a landing gear inspection? Or in the last 2 decades did the Strike Eagles get uprated gear?



I don't doubt the F-15QA/EX may have some changes because if it has a 20,000 hour lifetime with a similar mission distribution to the E then that could imply major structural changes - but at this point bit difficult to say.
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Unread post03 Mar 2021, 14:02

basher54321 wrote:From what the Dash 1 states the F-15E was even designed to land at its max gross of 81,000 lbs.

Thanks for double checking on that, didn't have my file available.
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