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Author Topic: Vought F-8 Projects  (Read 13813 times)

Offline Pioneer

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Vought F-8 Projects
« on: August 07, 2006, 04:48:48 am »
I was flicking through some of my old magazine extracts that I have collected over the years (a photocopy when photo copiers were as amazing as computers are today!). I came across an article about the Vought IF-8 Crusader.
It was apparently a proposal of based on the Vought F-8D Crusader to the Luftwaffe for a supersonic fighter, at the time that the Luftwaffe was assessing the English Electric Lightning, Mirage III, J35 Draken, XF11F-2 Super Tiger and the F-104 Starfighter to replace its Sabres and F-84’s.
The IF-8 Crusader was to have had a General Electric J79-GE-17 Turbojet, in place of the normal Pratt & Whitney J57 turbojet; increased internal fuel capacity, and a so-called USAF cockpit and modified offensive weapons.
As history has shown, Germany chose the Lockheed F-104G Starfighter.

Does anyone know anything about the Vought IF-8 Crusader?
Or was this just the V-1000? ???

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Offline Skybolt

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Re: Vought F-8 Projects
« Reply #1 on: August 07, 2006, 09:12:05 am »
V-1000 is from 1969. The German (and Italian) program was from the start of the '60s. This project is intriguing. It seems it never received a V-number. Don't know  if the V8-U2 (later F-8D) airframe could receive a J-79 without  major modifications. Idea, what  if it was the F8-U3 reborn? It was offered to the USAF with a specific version (don't remember the V-) and the engine was the J-75...

Offline elmayerle

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Re: Vought F-8 Projects
« Reply #2 on: August 07, 2006, 09:23:53 pm »
J79 as a replacement for the J57 is reasonable, the thrust is the same and the overall engine envelope is a bit less.  That would make sense in a lot of ways.  *grin* That the chief engineer behind the J79 was an Americanized German (by way of the AVG, no less) would not have hurt.  Using the J75 would've required the larger airframe of the F8U-3 since the J75 was essentially an enlarged J57.

Offline Archibald

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Re: Vought F-8 Projects
« Reply #3 on: February 18, 2007, 10:49:35 am »
So there was tow proposal for a J-79 crusader (IF-8 / V-1000)  ???

The Crusader is well known for its brilliant performances over Vietnam. At a time, it was the only valuable fighter in the american arsenal (the Phantom has its difficulties, the F-104 was a turkey. what else ?)

Now, this was achieved with the old and heavy J-57 engine...

I compared the J-57 with the J-79 some weeks ago (on the whatif forum  ;)) .
Just wanted to say that the J-57 was 2300 kg and 6.20 m long. Diameter in 1.15m
On the other hand, the J-79 was only 1600 kg and...5 m long. Diameter = 1.05 m !

For a  roughly equal thrust(7800 kgp or so). Can you imagine the benefits of changing a J-57 for a J-79 ?  :o

This plane would have been ideal for the Essex carriers, which were too small for Phantoms (I mean, J-79 powered variants. Americanised spey Phantoms were proposed for use on... small carriers. See what I mean ?  ;) )

I red that in Vietnam air protection of smaller carrier was assumed by Skyhawks with AIM-9  ??? 

I thought, too that the V-1000 was a proposal from the late 50's. Hmmm there's a cool alternate world to imagine, in which Vought sell the Crusader III to USAF, the
IF-8  and V-1000 are produced until 1972 for USN and Foreign customers (including navies of countries such as Brazil, France, GB...).



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Offline RyanC

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Re: Vought F-8 Projects
« Reply #4 on: June 04, 2010, 12:19:19 am »
Escape Capsuel Concept.

Offline Mark Nankivil

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Re: Vought F-8 Projects
« Reply #5 on: June 07, 2010, 08:18:07 pm »
...and in color...

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Offline Hammer Birchgrove

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Re: Vought F-8 Projects
« Reply #6 on: June 08, 2010, 09:33:18 am »
Fascinating concept. I know that XF-108 Rapier interceptor and the XB-70 Valkyrie bomber were going to have escape capsules. I've read somewhere that one of the V-bombers (the Victor IIRC) were supposed to have an escape capsule to the whole crew; rather than just having ejection seats only for the pilots, forcing the rest of the crew to parachute; with the risks involved.
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Offline frank

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Re: Vought F-8 Projects
« Reply #7 on: June 09, 2010, 10:40:25 am »

      The F-111 had a capsule & IIRC, the original B-1 was to use a capsule.


Fascinating concept. I know that XF-108 Rapier interceptor and the XB-70 Valkyrie bomber were going to have escape capsules. I've read somewhere that one of the V-bombers (the Victor IIRC) were supposed to have an escape capsule to the whole crew; rather than just having ejection seats only for the pilots, forcing the rest of the crew to parachute; with the risks involved.

Offline sferrin

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Re: Vought F-8 Projects
« Reply #8 on: June 09, 2010, 10:50:36 am »
The B-58 also used capsules.

http://www.ejectionsite.com/b58capsule.htm
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Offline Hammer Birchgrove

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Re: Vought F-8 Projects
« Reply #9 on: June 09, 2010, 11:38:29 am »
Thanks guys.  :)
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Offline fightingirish

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Re: Vought F-8 Projects
« Reply #10 on: June 09, 2010, 11:38:49 am »
Dear folks,
other interesting escape concepts are shown in the following topic.
Link: http://www.secretprojects.co.uk/forum/index.php/topic,1893.0/all.html
You also see the mockup of Escape Capsuel Concept for the F-8 Crusader.
http://www.chinalakealumni.org/IMAGES/1961/Oscar%20F8U%20ddOCT61%20CLK%20NAN.jpg
Quote
Mock up of Chance Vought Optimum Survival and Containment System (OSCAR) escape capsule. The solid fuel rocket motors were designed by China Lake.

2 pictures of the TF-8A (F8U-1T) at SDASM Archives.
Link: http://www.flickr.com/search/?ss=2&w=49487266%40N07&q=F8U-1T&m=text


« Last Edit: June 09, 2010, 11:46:16 am by fightingirish »
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Offline Mark Nankivil

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Re: Vought F-8 Projects
« Reply #11 on: June 10, 2010, 07:01:36 am »
I look at the F-8 capsule with the fins and can only think the pilot can steer it to the point of impact.  Ouch.

The prototype B-1s had capsules but the B-1B is ejection seat equipped.  The XB-70 also had individual capsules - part of the reason that Major Cross was killed after the F-104 collision as the ejection seat could not retract back into the capsule to allow the start of the ejection sequence do to G forces that had built up.

Mark

Offline Apollo Leader

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Re: Vought F-8 Projects
« Reply #12 on: June 10, 2010, 01:11:50 pm »
One has got to wonder if you eject that much of the aircraft off in an emergency (especially in combat) what if it were itself heavily damaged by enemy fire before ejecting?  Wouldn't also the forward section now be an easy target for AAA, SAM's, and enemy fighters?  It just screams, "Shoot me".
Richard

Offline Triton

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Re: Vought F-8 Projects
« Reply #13 on: June 18, 2012, 10:40:53 am »
« Last Edit: June 18, 2012, 11:11:22 am by Triton »

Offline Orionblamblam

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Re: Vought F-8 Projects
« Reply #14 on: June 18, 2012, 11:56:26 am »
FWIW:
 
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