Register here

Author Topic: Delta wing F-16s: SCAMP, F-16XL, Falcon 21 and more  (Read 60199 times)

Offline Matej

  • Deputy Administrator
  • CLEARANCE: Top Secret
  • ****
  • Posts: 2617
  • Multiuniversal creator
    • Hitechweb - bizare aviation
Delta wing F-16s: SCAMP, F-16XL, Falcon 21 and more
« on: June 27, 2006, 01:59:02 pm »
I have seen a drawing of a proposed F-16 derivative with a similar trapezoidal wing planform - although it dates from 5 years later.

Thats it. F-16U - one of early proposals for Saudi Arabia.

Bizarre aviation expert.

Offline elmayerle

  • Aerospace Engineer
  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 1234
Re: Delta wing F-16s: SCAMP, F-16XL, Falcon 21 and more
« Reply #1 on: June 27, 2006, 04:04:23 pm »
Per one of the aerodynamicists who worked on it, the F-16U's wing has the planform of the YF/F-22's wing.  As near as I can tell, the YF-22 wing mated to the F-2 fuselage, which was derived from the earlier "Agile Falcon" aerodynamic studies, comes quite close to this.

Offline TinWing

  • What-if addict
  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 885
Re: Delta wing F-16s: SCAMP, F-16XL, Falcon 21 and more
« Reply #2 on: June 27, 2006, 05:30:53 pm »
As promised, here is a Falcon 21 design study with exactly the same wing planform and same biconvex wing profile.

Offline PaulMM (Overscan)

  • Secret Projects Forum Founder
  • Administrator
  • CLEARANCE: Top Secret
  • *****
  • Posts: 10888
  • Paul Martell-Mead
    • Secret Projects
Re: Delta wing F-16s: SCAMP, F-16XL, Falcon 21 and more
« Reply #3 on: October 15, 2006, 08:11:16 am »
F-16XL early designs

"They can't see our arses for dust."
 
- Sir Sydney Camm

Offline PaulMM (Overscan)

  • Secret Projects Forum Founder
  • Administrator
  • CLEARANCE: Top Secret
  • *****
  • Posts: 10888
  • Paul Martell-Mead
    • Secret Projects
Re: Delta wing F-16s: SCAMP, F-16XL, Falcon 21 and more
« Reply #4 on: October 15, 2006, 08:16:00 am »
More
"They can't see our arses for dust."
 
- Sir Sydney Camm

Offline Matej

  • Deputy Administrator
  • CLEARANCE: Top Secret
  • ****
  • Posts: 2617
  • Multiuniversal creator
    • Hitechweb - bizare aviation
Re: Delta wing F-16s: SCAMP, F-16XL, Falcon 21 and more
« Reply #5 on: October 15, 2006, 08:20:42 am »
This first design is very nice  :)

Bizarre aviation expert.

Offline PaulMM (Overscan)

  • Secret Projects Forum Founder
  • Administrator
  • CLEARANCE: Top Secret
  • *****
  • Posts: 10888
  • Paul Martell-Mead
    • Secret Projects
Re: Delta wing F-16s: SCAMP, F-16XL, Falcon 21 and more
« Reply #6 on: October 15, 2006, 08:41:00 am »
Source:

Jay Miller Aerograph 1 General Dynamics F-16 Fighting Falcon Aerofax 1982
"They can't see our arses for dust."
 
- Sir Sydney Camm

Offline PaulMM (Overscan)

  • Secret Projects Forum Founder
  • Administrator
  • CLEARANCE: Top Secret
  • *****
  • Posts: 10888
  • Paul Martell-Mead
    • Secret Projects
Re: Delta wing F-16s: SCAMP, F-16XL, Falcon 21 and more
« Reply #7 on: October 15, 2006, 11:08:29 am »
3 NASA windtunnel pics, 2 of which show different inlets.

"They can't see our arses for dust."
 
- Sir Sydney Camm

Offline elmayerle

  • Aerospace Engineer
  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 1234
Re: Delta wing F-16s: SCAMP, F-16XL, Falcon 21 and more
« Reply #8 on: October 16, 2006, 12:19:14 am »
I think "F-16XL-2" shows the version I always liked, they used a standard F-16 horizontal tail as an all-moving vertical tail above the basic fairing.  I seem to remember a three-view of that version in an old issue of Aviation Week.

Offline CammNut

  • Senior Member
  • CLEARANCE: Secret
  • **
  • Posts: 296
Re: Delta wing F-16s: SCAMP, F-16XL, Falcon 21 and more
« Reply #9 on: July 06, 2007, 10:36:08 am »
Looks like NASA is thinking of putting F-16XL #1, the single-seater, back in the air to support sonic boom research. Fingers crossed...

http://www.fbo.gov/spg/NASA/DFRC/OPDC20220/NND07204397Q-DAC/listing.html

Offline Sundog

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 2519
Re: Delta wing F-16s: SCAMP, F-16XL, Falcon 21 and more
« Reply #10 on: July 06, 2007, 12:30:44 pm »
Does anyone know how fast the GE version of the XL supercruised, or is that still classified?

Offline Jeb

  • CLEARANCE: Secret
  • **
  • Posts: 243
Re: Delta wing F-16s: SCAMP, F-16XL, Falcon 21 and more
« Reply #11 on: July 07, 2007, 02:08:17 pm »
To me, this is one of the biggest "what could have been" projects ever.

Offline flateric

  • Deputy Administrator
  • CLEARANCE: Top Secret
  • ****
  • Posts: 8613
Re: Delta wing F-16s: SCAMP, F-16XL, Falcon 21 and more
« Reply #12 on: July 07, 2007, 04:44:51 pm »
Wing modifications that F-16XL went through the test period
« Last Edit: July 07, 2007, 11:42:23 pm by flateric »
"There are many disbelievers in
stealth, more than a few of them truly technically ignorant and proud of it." Sherm Mullin, Skunk Works

Offline elmayerle

  • Aerospace Engineer
  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 1234
Re: Delta wing F-16s: SCAMP, F-16XL, Falcon 21 and more
« Reply #13 on: July 07, 2007, 11:29:05 pm »
To me, this is one of the biggest "what could have been" projects ever.

Well, according to folk I work with who were there at the time, it did have its problems.  Apparently the cg was such that ground handling, and stability, was a right handful for the pilot.

Offline Ogami musashi

  • Senior Member
  • CLEARANCE: Secret
  • **
  • Posts: 299
Re: Delta wing F-16s: SCAMP, F-16XL, Falcon 21 and more
« Reply #14 on: July 08, 2007, 02:52:00 am »
According to the reports the laminar boundary layer goals were not reachable, the plane did not supercruise efficiently.

But maybe a new version would have fix this problem.