Author Topic: McDonnell Douglas F-15 Eagle Ideas and Inspiration  (Read 50155 times)

Offline dy031101

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McDonnell Douglas F-15 Eagle Ideas and Inspiration
« on: February 12, 2012, 01:24:58 PM »
The discussion with production F-17 makes me wonder about one thing- did GE compete for the engine to be used by the F-15?  If they did, what engine did they enter the competition with?

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Nevertheless, even though it couldn't be the YJ101 or F404 that GE competed for the F-15's engines with, I feel tempted to think of a F-15 powered by a cluster of three of these turbofans, too......
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Re: McDonnell Douglas F-15 Eagle Ideas and Inspiration
« Reply #1 on: February 12, 2012, 02:11:37 PM »
I don't know if there was any original competing engine, although in recent years the F-15 has been available with the GE F110 engine.  Variants with this so far include the F-15K, SG and updated S versions.


« Last Edit: February 13, 2012, 02:04:33 AM by GTX_Admin »
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Re: McDonnell Douglas F-15 Eagle Ideas and Inspiration
« Reply #2 on: February 12, 2012, 02:18:29 PM »
One concept I am toying with is the idea of an F-15 fitted with a probe & drogue air-to-air refuelling arrangement.  Either for the proposed F-15N or as an option for export versions.
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Re: McDonnell Douglas F-15 Eagle Ideas and Inspiration
« Reply #3 on: February 12, 2012, 05:42:05 PM »
Another could be a VG wing onto an F-15 body.  Bit of a twist from the usual 'normal' wing on a VG machine.

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Offline upnorth

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Re: McDonnell Douglas F-15 Eagle Ideas and Inspiration
« Reply #4 on: February 12, 2012, 06:19:03 PM »
I'd think the F-15 would look quite fetching with a cranked arrow delta wing configuration, like the F-16XL.
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Online elmayerle

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Re: McDonnell Douglas F-15 Eagle Ideas and Inspiration
« Reply #5 on: February 13, 2012, 05:19:41 AM »
One concept I am toying with is the idea of an F-15 fitted with a probe & drogue air-to-air refuelling arrangement.  Either for the proposed F-15N or as an option for export versions.
I've been doing a bit of doodling on that for a navalized F-15 (I'm calling it a F-15M since someone took the F-15N designation on another board for a VG navalized F-15) and it looks like I could handily replace the flying boom receptacle with a probe & drogue set-up that would use much the same real estate.  Contra-wise, I've found enough now to reverse that for a F-14 for USAF use.

Offline kitnut617

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Re: McDonnell Douglas F-15 Eagle Ideas and Inspiration
« Reply #6 on: February 13, 2012, 05:37:02 AM »
One concept I am toying with is the idea of an F-15 fitted with a probe & drogue air-to-air refuelling arrangement.  Either for the proposed F-15N or as an option for export versions.
I've been doing a bit of doodling on that for a navalized F-15 (I'm calling it a F-15M since someone took the F-15N designation on another board for a VG navalized F-15) and it looks like I could handily replace the flying boom receptacle with a probe & drogue set-up that would use much the same real estate.  Contra-wise, I've found enough now to reverse that for a F-14 for USAF use.

I've been contemplating the very same set-up for my AV-19 build Evan,  seeing as the Marines favour that type of refueling system.  I had wondered if the probe would be too far back though, or is there something that would extend the probe far enough forward to be seen easily from the cockpit.

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Re: McDonnell Douglas F-15 Eagle Ideas and Inspiration
« Reply #7 on: February 13, 2012, 05:45:04 AM »
I don't think you can extend it forward enough and have it fit the available "real estate".  My F-15M was going to be a two-seater and the GIB could help with watching the probe and drogue.  In your case, would the probe be that much farther aft than it is on the current Harrier?

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Re: McDonnell Douglas F-15 Eagle Ideas and Inspiration
« Reply #8 on: February 13, 2012, 05:48:55 AM »
The discussion with production F-17 makes me wonder about one thing- did GE compete for the engine to be used by the F-15?  If they did, what engine did they enter the competition with?

I believe the naval version of the GE engine in the original competition was the F400 but I'm not totally certain (it *has* been some 40 years after all).  I know P&W competed in the B-1 competition with an engine with the internal designation JTF20 and the F100/F401 family was the JTF22 but I don't know the GE designations any closer.

Offline kitnut617

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Re: McDonnell Douglas F-15 Eagle Ideas and Inspiration
« Reply #9 on: February 13, 2012, 06:01:08 AM »
I don't think you can extend it forward enough and have it fit the available "real estate".  My F-15M was going to be a two-seater and the GIB could help with watching the probe and drogue.  In your case, would the probe be that much farther aft than it is on the current Harrier?

Considering that my AV-19 is heavily influenced by the F-15, I had done a lot of viewing of F-15 pic's, the seat position in the AV-19 is a bit closer to the wing root fairing of an F-15, but then I moved the wing root back a bit on the AV-19 so looks about the same distance to where the recepticule is.  I think though we could have some sort of extender working in the probe mechanism but I was really wondering just how much.
« Last Edit: February 13, 2012, 06:03:22 AM by kitnut617 »

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Re: McDonnell Douglas F-15 Eagle Ideas and Inspiration
« Reply #10 on: February 13, 2012, 08:04:05 AM »
A telescoping front end, with a mechanism that extends it when the probe is extended would work.  As I remember, the inflight refueling probes on various rotary-winged platforms are actuated forward for refueling to get the drogue farther away from the rotor disk so there might be something there.  I don't think I'd want to use too many extensions, though, as I'd be concerned about structural integrity if there were too many sections.

Offline finsrin

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Re: McDonnell Douglas F-15 Eagle Ideas and Inspiration
« Reply #11 on: February 13, 2012, 02:04:01 PM »
Sometime in midst of F-22 and F-35 budget issues I read that Boeing proposed a USAF "F-15 on steriods" as the article said.  A lower cost yet high performance alternative or suplement to the others.  What I read did not give specifics.
Bill

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Re: McDonnell Douglas F-15 Eagle Ideas and Inspiration
« Reply #12 on: February 13, 2012, 03:49:30 PM »
A telescoping front end, with a mechanism that extends it when the probe is extended would work.  As I remember, the inflight refueling probes on various rotary-winged platforms are actuated forward for refueling to get the drogue farther away from the rotor disk so there might be something there.  I don't think I'd want to use too many extensions, though, as I'd be concerned about structural integrity if there were too many sections.


I was thinking of doing a set up similar to either the Tornado (my preferred):



Or F-18:



Or telescoped helicopter wise from the existing refueling port.

Either way, the need would be to get the probe in the pilot's eye sight.  Obviously for the first two options, it would need to be on the same side as the real world point to aid simplicity of piping etc.

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Greg
« Last Edit: February 13, 2012, 03:55:18 PM by GTX_Admin »
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Re: McDonnell Douglas F-15 Eagle Ideas and Inspiration
« Reply #13 on: February 13, 2012, 04:08:14 PM »
Don't ignore or overlook the refueling probe attached to a fuel tank.  There are several variations on that theme including one that has a telescoping probe that is stowed in the fuel tank when not in use.  I downloaded a couple of images of one that was based on the fuel tank used on the F-16. 
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Re: McDonnell Douglas F-15 Eagle Ideas and Inspiration
« Reply #14 on: February 13, 2012, 04:20:50 PM »
Don't ignore or overlook the refueling probe attached to a fuel tank.  There are several variations on that theme including one that has a telescoping probe that is stowed in the fuel tank when not in use.  I downloaded a couple of images of one that was based on the fuel tank used on the F-16.


That would be this one:





I did consider, but it isn't as elegant as a aircraft mounted probe.
« Last Edit: February 13, 2012, 04:26:24 PM by GTX_Admin »
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