Register here

Author Topic: General Dynamics F-111 Projects  (Read 93659 times)

Offline PaulMM (Overscan)

  • Secret Projects Forum Founder
  • Administrator
  • CLEARANCE: Top Secret
  • *****
  • Posts: 10888
  • Paul Martell-Mead
    • Secret Projects
General Dynamics F-111 Projects
« on: September 20, 2006, 12:57:07 pm »
Quote
65 FB-111As  to be modified to FB-111H, and/or up to 100 FB-111Hs built. Initial funding for two prototypes. $380m for prototype development, with a total program cost of $7000m, for a unit price of $42.1m (less than half the unit price of the B-1) for a 167 aircraft fleet.

43 percent commonality with structure, 79 percent of subsystems of the basic aircraft. Main features are the stretched fuselage and the use of F101 engines. Bomb bay size almost doubled, to allow 4 or 5 nuclear weapons instead of 2. External hardpoints increased to 12, 6 on the wings and 6 on the sides and bottoms of the air intakes. Two wing hardpoints fixed, usable at minimum sweep only. Maximum wing sweep is reduced to 60 deg, with maximum speed reduced to Mach 1.6.

Avionics suite include GE APQ-144 radar, modified APQ-134 TFR, APN-200 Doppler, AJN-16 and SKN-2400 INS, dual IBM CP-2A computers, AN/ALQ-131 band 1 & 2 jammers, AN/ALQ-137 jammer, AN/ALQ-153/154 tail warning, AN/ALR-62 RWR, AN/ALE-28 chaff/flare dispensers.

Engine: 2 x F101-GE turbofans, rated at 17,000lb st dry and 30,000lb st afterburning.
Max speed: Mach 1.6 above 36,000ft, cruise speed Mach 0.75, low altitude penetration speed Mach 0.85 at 200 ft, takeoff distance 6,700ft, high altitude ferry range 6,900 miles.

Empty weight: 30,408 lb
MTOW: 140,000lb
Max in-flight gross weight: 156,000lb (after refuelling)

Span: 70ft spread, 44ft 10in swept
Length: 88ft 2.5in
Height: 22ft
Wing area: 550 ft

Armament: 5 nuclear bombs, 4 AGM-69A SRAM, 3 ALCM-A in the internal bay. 10 weapons on 12 hardpoints.
Air International Jan 1978
« Last Edit: September 20, 2006, 01:36:38 pm by overscan »
"They can't see our arses for dust."
 
- Sir Sydney Camm

Offline Skybolt

  • Top Contributor
  • CLEARANCE: Top Secret
  • ***
  • Posts: 2288
Re: General Dynamics F-111 Projects
« Reply #1 on: September 20, 2006, 01:34:03 pm »
An often seen artist impression and a seldom seen internal arrangement (AFAIK)

Offline PaulMM (Overscan)

  • Secret Projects Forum Founder
  • Administrator
  • CLEARANCE: Top Secret
  • *****
  • Posts: 10888
  • Paul Martell-Mead
    • Secret Projects
Re: General Dynamics F-111 Projects
« Reply #2 on: September 20, 2006, 02:25:00 pm »
Internal fuel: 64,574lb

Air International, April 1978.
"They can't see our arses for dust."
 
- Sir Sydney Camm

Offline Archibald

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 2094
Re: General Dynamics F-111 Projects
« Reply #3 on: September 21, 2006, 11:33:18 am »
Were the undercarriage and airbrake changed or moved to make more room for the bomb bay   ???
Always thought the F-111 had big growth potential, it just needed better engines...
Conservatoire de l'Air et de l'Espace d'Aquitaine
http://www.caea.info/en/plan.php

Profanity: weaker mind trying to speak forcefully

Political correctness: just bury your head in the sand for the sake of appeasement and "peace for our time"
- https://fr.wikipedia.org/wiki/Serge_Dassault#Affaires_

Offline Skybolt

  • Top Contributor
  • CLEARANCE: Top Secret
  • ***
  • Posts: 2288
Re: General Dynamics F-111 Projects
« Reply #4 on: September 22, 2006, 01:46:50 am »
If I remember well, the FB-111H was preceded (or followed  ??? ) a by an FB-111G

Offline fightingirish

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 2075
Re: General Dynamics F-111 Projects
« Reply #5 on: September 22, 2006, 06:56:36 am »
If I remember well, the FB-111H was preceded (or followed  ??? ) a by an FB-111G

Are you not mixing up, that after leaving the SAC to the TAC and adding conventionel weapons systems the FB-111A was called F-111G?

The FB-111B was a planned version also  with General Electric F101 engines.
« Last Edit: September 22, 2006, 07:06:33 am by fightingirish »
Slán,
fightingirish

Slán ist an Irish Gaelic word for Goodbye.  :)

Avatar:
McDonnell Douglas Model 225 painting by "The Artist" Michael Burke (Tavush) 2018, found at deviantart.com and at Secret Projects Forum » Research Topics » User Artwork » McDonnell Douglas Model 225 Painting

Offline fightingirish

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 2075
Re: General Dynamics F-111 Projects
« Reply #6 on: September 22, 2006, 07:05:52 am »
« Last Edit: September 13, 2010, 01:06:41 am by overscan »
Slán,
fightingirish

Slán ist an Irish Gaelic word for Goodbye.  :)

Avatar:
McDonnell Douglas Model 225 painting by "The Artist" Michael Burke (Tavush) 2018, found at deviantart.com and at Secret Projects Forum » Research Topics » User Artwork » McDonnell Douglas Model 225 Painting

Offline Skybolt

  • Top Contributor
  • CLEARANCE: Top Secret
  • ***
  • Posts: 2288
Re: General Dynamics F-111 Projects
« Reply #7 on: September 23, 2006, 12:46:54 pm »
Quote
Are you not mixing up, that after leaving the SAC to the TAC and adding conventionel weapons systems the FB-111A was called F-111G?

You're right ! :-[

Offline PaulMM (Overscan)

  • Secret Projects Forum Founder
  • Administrator
  • CLEARANCE: Top Secret
  • *****
  • Posts: 10888
  • Paul Martell-Mead
    • Secret Projects
Re: General Dynamics F-111 Projects
« Reply #8 on: September 23, 2006, 12:52:17 pm »
FB-111G

Rejected proposal derived from FB-111A with lengthened fuselage and other aerodynamic changes, to allow carriage of 4 SRAM 4,100 miles at height or 2,200 miles at low altitude.

Unit cost $25m (F-111 cost: $16m)

Source:

Air Enthusiast September 1971
"They can't see our arses for dust."
 
- Sir Sydney Camm

Offline Skybolt

  • Top Contributor
  • CLEARANCE: Top Secret
  • ***
  • Posts: 2288
Re: General Dynamics F-111 Projects
« Reply #9 on: September 23, 2006, 12:55:05 pm »
And I wasn't wrong  ;D

Offline Archibald

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 2094
Re: General Dynamics F-111 Projects
« Reply #10 on: October 13, 2006, 12:44:16 am »
So we have now
- FB-111A
- FB-111B (http://home.att.net/~jbaugher1/f111_10.html)

- FB-111G
- FB-111H
(from here)

Maybe it's a stupid question, but what about the FB-111C/D/E/F  ???
It seems that the FB-111 serie was independant from the basic F-111 list...


Conservatoire de l'Air et de l'Espace d'Aquitaine
http://www.caea.info/en/plan.php

Profanity: weaker mind trying to speak forcefully

Political correctness: just bury your head in the sand for the sake of appeasement and "peace for our time"
- https://fr.wikipedia.org/wiki/Serge_Dassault#Affaires_

Offline Skybolt

  • Top Contributor
  • CLEARANCE: Top Secret
  • ***
  • Posts: 2288
Re: General Dynamics F-111 Projects
« Reply #11 on: October 13, 2006, 04:59:28 am »
The FB-111B had a "C" subversion, don't know differences, probably in avionics  ???

Offline Angel

  • CLEARANCE: Restricted
  • Posts: 17
Re: General Dynamics F-111 Projects
« Reply #12 on: October 18, 2006, 10:27:43 am »
HI, thanks Matej.

You know the specifications of the plane?

Offline Archibald

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 2094
Re: General Dynamics F-111 Projects
« Reply #13 on: October 18, 2006, 11:17:49 am »
Hmm I found more details about the FB-111 serie here
http://www.fb-111a.net/History.html

According to this website...

"When the B-1 project was cancelled in July 1977, the USAF was left to find a replacement and plans to modify the FB-111A were studied. GD began to explore the possibilities of an enlarged FB-111 variant and the original proposal called for converting the FB-111As to FB-111H followed by another proposal in 1979 to produce 89 FB-111B from F-111D and 66 FB-111C from FB-111A. The modifications involved adding a 15ft extension to the fuselage and the widening by 1.5ft of the rear fuselage to accommodate a pair of GE F101 afterburning turbofans. The aircraft would have possessed the capacity for 68,000lbs of fuel and the ability to carry a dozen of SRAMs."



Conservatoire de l'Air et de l'Espace d'Aquitaine
http://www.caea.info/en/plan.php

Profanity: weaker mind trying to speak forcefully

Political correctness: just bury your head in the sand for the sake of appeasement and "peace for our time"
- https://fr.wikipedia.org/wiki/Serge_Dassault#Affaires_

Offline fightingirish

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 2075
Re: General Dynamics F-111 Projects
« Reply #14 on: November 24, 2006, 02:04:35 am »
Found at key forum:

Quote from: datafuser
A November 1965 draft memorandum by McNamara regarding Recommended FY 1967-71 Strategic Offensive and Defensive Forces found at http://www.state.gov/r/pa/ho/frus/johnsonlb/x/9060.htm mentions FB-111M-3, a little known 3-seat variant of the FB-111.

Below is the part of the memorandum that describes the FB-111M-3.

"The FB-111M-3 is a larger version of the F-111. It would have a longer fuselage, a maximum takeoff gross weight of 130,000 lbs compared with 111,000 lbs for the FB-111A and would carry a crew of 3 instead of 2. It would also have about a 10 percent greater combat range. The AMSA is an entirely new and larger aircraft which has yet to be developed. The characteristics and cost of the AMSA were discussed in considerable detail in my memorandum on this subject last year.

The first operational FB-111s could be available in FY 1969 and the first FB-111M-3s about a year later. For a force of 210 U.E. aircraft, the FB-111M-3 would cost about $800 million more than the FB-111As, including development and production. The most significant operational factor in favor of the FB-111M-3 over the FB-111A is the availability of space for a crew of 3 instead of 2. The larger crew could spread the heavy workload and reduce the strain involved in strategic missions. The FB-111, however, would have essentially the same performance as the fighter version and could be easily used in that role. The FB-111M-3 would have less range with the same payload in that role because of its greater weight, and could not operate as efficiently from the shorter runways for which the F-111A was designed."

Cheers,
Sunho
Slán,
fightingirish

Slán ist an Irish Gaelic word for Goodbye.  :)

Avatar:
McDonnell Douglas Model 225 painting by "The Artist" Michael Burke (Tavush) 2018, found at deviantart.com and at Secret Projects Forum » Research Topics » User Artwork » McDonnell Douglas Model 225 Painting