F-15EX

sprstdlyscottsmn · by **sprstdlyscottsmn** » 19 Mar 2021, 18:41

mixelflick wrote:Here, GE is claiming an improved fuel burn and "performance capability in reserve".

https://www.geaviation.com/military/eng ... 7yEALw_wcB

I wonder just how much more range an F-15EX has vs. an F-15E for example. I also wonder if the "performance capability in reserve" refers to more thrust, faster throttle input, etc.? Finally, are both the E and EX pictured below powered by the same GE engine? Unless my eyes are playing tricks on me, the nozzle at least looks similar. Doesn't seem to have the turkey feathers removed, as on the PandW F-100...

Zoom in, the EX is on the left with GE motors, the E on the right has featherless Pratts

mixelflick · by **mixelflick** » 20 Mar 2021, 16:23

Ah... I see now. Thanks..

I must say I think this engine competition to power the EX is going to be good for all parties. A lot at stake though, as what USAF flies means a lot (right or wrong), to foreign customers. Pratt is the home team where I live, and pilots (particularly one F-35 pilot I spoke with) rave about their engines. GE's F-110's did wonders for the Tomcat, albeit it was coming from possibly the worst engine/airframe mismatch in fighter history. Naval, anyway..

Can't wait for the F-15 demo team to be resurrected. It should fly like an Strike Eagle with the up-rated engines and no CFTs, which is to say - one hell of an impressive demo. I thought there was one at MAKS some years ago, but couldn't find it on Youtube. It was far and away the most impressive Eagle demo I've seen. And I've been seeing them since 1987...

sprstdlyscottsmn · by **sprstdlyscottsmn** » 21 Mar 2021, 13:59

I think I recall that demo, it was really good for an Eagle.

wrightwing · by **wrightwing** » 21 Mar 2021, 18:21

I'd be interested in seeing the plane demo it's new slow speed, care free handling capabilities, with the FBW controls.

sprstdlyscottsmn · by **sprstdlyscottsmn** » 21 Mar 2021, 18:42

Me too. I've heard a well flown Charlie can make a Hornet driver sweat in ACM.

deltasierracharlie · by **deltasierracharlie** » 22 Mar 2021, 00:47

mixelflick wrote:...I thought there was one at MAKS some years ago, but couldn't find it on Youtube. It was far and away the most impressive Eagle demo I've seen. And I've been seeing them since 1987...

This video here?

Just type something like "F-15E MAKS" on the search bar and it will show up.

sprstdlyscottsmn · by **sprstdlyscottsmn** » 22 Mar 2021, 12:59

yeah, oh man, that pitch rate at ~1:00. That is a crisp demo.

mixelflick · by **mixelflick** » 22 Mar 2021, 15:09

deltasierracharlie wrote:
mixelflick wrote:...I thought there was one at MAKS some years ago, but couldn't find it on Youtube. It was far and away the most impressive Eagle demo I've seen. And I've been seeing them since 1987...

This video here?

Just type something like "F-15E MAKS" on the search bar and it will show up.

Tried that, still looking. I'm virtually certain it was an F-15E without the CFT's/FAST packs. This pilot is pretty incredible though, I'd love to know how much fuel he was carrying. Still, a display like that with CFT's is very impressive. Full, empty or otherwise. I've heard they don't cause much drag by themselves subsonic, supersonic is a different story.

I'd also love to see the slow speed stuff they're alluding to. Hard to picture the F-15 performing some of those moves, but with the new FBW software and other enhancements... I'm sure it'll be eye watering.

sprstdlyscottsmn · by **sprstdlyscottsmn** » 22 Mar 2021, 16:00

mixelflick wrote: Still, a display like that with CFT's is very impressive. Full, empty or otherwise. I've heard they don't cause much drag by themselves subsonic, supersonic is a different story.

One thing to keep in mind is that CFTs reduce stability in pitch. Empty CFTs might give a better display than no CFTs.

Tiger05 · by **Tiger05** » 22 Mar 2021, 19:35

Here is a video of a F-15E without CFTs performing a flight demonstration for the Korean government back in 2001. Looks like it convinced them since they eventually bought the thing.

Maybe it was this video you were talking about, mixelflick?

https://www.youtube.com/watch?v=YuhPrxFFiA8

mixelflick · by **mixelflick** » 22 Mar 2021, 20:15

Tiger05 wrote:Here is a video of a F-15E without CFTs performing a flight demonstration for the Korean government back in 2001. Looks like it convinced them since they eventually bought the thing. Maybe it was this video you were talking about, mixelflick?

https://www.youtube.com/watch?v=YuhPrxFFiA8

That's quite a display, but no that's not it. Damn, I knew I should have bookmarked it. In any case, I've never seen an Eagle (of any sort) flown this slow/high AoA. I suppose we'll have to wait and see how much of an envelope extension the EX has. I think they (EX and perhaps QA pilots) speaking to the fact the EX "reaches the edges of the performance envelope faster..". Something to that effect.

Exciting stuff...

jetblast16 · by **jetblast16** » 22 Mar 2021, 20:51

Original video source: https://www.youtube.com/watch?v=BOnKR9blO7Q

jetblast16 · by **jetblast16** » 22 Mar 2021, 20:52

Original video source: https://www.youtube.com/watch?v=Q2tuj4LWEPw

jetblast16 · by **jetblast16** » 22 Mar 2021, 20:53

A charlie..

Original video source: https://www.youtube.com/watch?v=RbRCQaEjQqQ

jetblast16 · by **jetblast16** » 22 Mar 2021, 20:56

The raw power of an F-15SG (a close approximate of the F-15EX)

Original video source: https://www.youtube.com/watch?v=TVwQlBfM7fQ