The 5-minute FALCON - F-15 Global Strike Eagle

[flateric]

Apart from talks of low-cost LEO launches, F-15 as first stage dubbed 'Global Strike Eagle' makes Flateric suspicious...)))

 

[Michel Van]

this pig back The Rocket on F-15 remind me of some thing

ah Yes

D-21 M-21 Fiasco
were a Sr-71 variant carry pig back a Mach 6 drone
the D-21 Wing came to close to M-21 fin
on July 30 1966 that happend and D-21 hit and destroy the M-21

here is the same problem
not much space between F-14 Fin and Rocket

 

[Orionblamblam]

Note that the F-15 in question is unmanned... pilotted either from the ground or bya chase plane.

Also, the release conditions would be substantially different from the D-21. The D-21 was released from the A-11 while in horizontal flight; here the rocket would be release while in climb. Thus the gravity vector would tend to pull the D-21 back down onto the A-11, while the rocket would tend to be pulled *aft* of the F-15.

Still very unlikely though.

 

[flateric]

Personally I think that this is graduate manga that obviously became Boeing paper to send someone to that boring RAS conference

Full text
http://www.responsivespace.com/Papers/RS4%5CPresentations%5CRS4_2001C_Chen.pdf
http://www.responsivespace.com/Papers/RS4%5CPapers%5CRS4_2001P_Chen.pdf

 

[Orionblamblam]

Personally I think that this is graduate manga that obviously became Boeing paper to send someone to that boring RAS conference

Given that the illustrations are powerpoint....

 

[Kim Margosein]

I can just picture Wile E Coyote piloting this. All that's needed is "Acme" on the rocket.
Kim M ;D

 

[compton_effect]

The most interesting bit for me is the launch flight crew - "No flight crew". That baby is flying unmanned.
Lets face it, that thing looks like something the Iranians would have thought up.

 

[fightingirish]

The most interesting bit for me is the launch flight crew - "No flight crew". That baby is flying unmanned.
Lets face it, that thing looks like something the Iranians would have thought up.

yes, I knew something was wrong with the canopy.
First I thought they took the false canopy from that Mig-29 displayed in the USA.

 

[CFE]

With the added drag of the rocket, would it be possible for the F-15 to break the sound barrier in the mated configuration? I suspect that the delta-V contribution of the F-15 would be very small (certainly less than Mach 2.) If that's the case, why even bother with this concept?

 

[Orionblamblam]

With the added drag of the rocket, would it be possible for the F-15 to break the sound barrier in the mated configuration? I suspect that the delta-V contribution of the F-15 would be very small (certainly less than Mach 2.) If that's the case, why even bother with this concept?

Not just a velocity componant, but also an altitude componant. Reduces the height the rocket must climb on it's own *and* it reduces the aerodynamic drag it must fight. Also, an aircraft gives increased options in launch points compared to ground launch.

 

[TomS]

With the added drag of the rocket, would it be possible for the F-15 to break the sound barrier in the mated configuration? I suspect that the delta-V contribution of the F-15 would be very small (certainly less than Mach 2.) If that's the case, why even bother with this concept?

Apparently, it was possible. Yesterday, while looking for something totally different, I stumbled across this report on the concept that was reposted by DoD earlier this year. The flight profile calls for a pitch-up and M<1.7, and actual release at M1.35 and just under 50,000 feet altitude. I'm not quite sure I understand the profile leading to the pitch-up -- it's a bit of a roller-coaster.

 

[Desertfox]

There's similar concepts out there for using Rafales, Eurofighters and Sukhois, as well as the Raven X concept: https://www.aevumspace.com/space. I guess you can add the Mig-31 with Kinzhal to the list.

Very similar to what my undergrad thesis project was.

 

[Scott Kenny]

With the added drag of the rocket, would it be possible for the F-15 to break the sound barrier in the mated configuration? I suspect that the delta-V contribution of the F-15 would be very small (certainly less than Mach 2.) If that's the case, why even bother with this concept?

Same reason that the Pegasus booster launches from the B-52, or the various Scaled Composites weirdness: to get above the thickest part of the atmosphere.

Free delta vee just from that. Starting supersonic is a happy bonus.