Register here

Author Topic: Vought (LTV) A-7 Corsair II Projects  (Read 60306 times)

Offline Triton

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 8267
  • Donald McKelvy
    • Deep Blue to Wild Blue
Re: Vought (LTV) A-7 Corsair II Projects
« Reply #120 on: June 19, 2012, 10:09:31 am »
Fascinating stuff.

Offline Mark Nankivil

  • Archive Raider
  • Top Contributor
  • CLEARANCE: Top Secret
  • ***
  • Posts: 1056
Re: Vought (LTV) A-7 Corsair II Projects
« Reply #121 on: August 15, 2012, 02:33:36 pm »
Greetings All -

On my last visit to the Vought Archives, I copied the following drawings of the two A-7X variants being looked at - the single engine F-101 DFE and the twin engine F404 Dry version (V-529).

Enjoy the Day! Mark

Offline ReccePhreak

  • CLEARANCE: Confidential
  • *
  • Posts: 23
Re: Vought (LTV) A-7 Corsair II Projects
« Reply #122 on: August 15, 2012, 04:54:45 pm »
Greetings All -

On my last visit to the Vought Archives, I copied the following drawings of the two A-7X variants being looked at - the single engine F-101 DFE and the twin engine F404 Dry version (V-529).

Enjoy the Day! Mark

Cool drawings, thanks!
 
It would be interesting, but a real challenge, to convert a 1/48 A-7 model into the twin F404 version.
 
Larry
 

Offline italian_o

  • CLEARANCE: Restricted
  • Posts: 6
Re: Vought (LTV) A-7 Corsair II Projects
« Reply #123 on: August 17, 2012, 10:41:29 am »

It would be interesting, but a real challenge, to convert a 1/48 A-7 model into the twin F404 version.
 
Larry

I did it in 1/48, look this link: http://www.whatifmodelers.com/index.php/topic,21674.0.html
I have NEVER completed the conversion, maybe this year I will complete the job....


Offline Grey Havoc

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 5286
  • _ \\ //
Re: Vought (LTV) A-7 Corsair II Projects
« Reply #124 on: April 28, 2013, 04:16:02 am »
http://www.dtic.mil/dtic/tr/fulltext/u2/a038455.pdf

Quote
                                         INTRODUCTION

        The Airborne Light Optical Fiber Technology (ALOFT) demonstration was sponsored
by the Naval Air System Command (AIR-360) to show the feasibility of using fiber
optics on an airborne military platform and to determine if fiber optics could lower the
overall cost or improve the overall performance of military systems.
When signals in an avionics environment ire transferred electrically, there is found
to be potential operational degradation and damage due to the susceptibility of metallic
conductors to elect romiagnetic interference, radio-frequency interference, lightning strikes,
and nuclear-generated electromagnetic pulses. Other sources of electronic interference such
as crosstalk, ground-looping, reflection, and short-circuit loading also affect system operation.
When an electro-optical interface is used to transfer signals, information is transmitted
through bundles of glass fibers called fiber-optic cables. Because of the dielectric nature of
glass, the bundles are immune to electrical interference and are unaffected by electbonic conduction
problems. Because of these attributes and the high-bandwidth capabilities of fiberoptic
cables, multiplexing can be used reliably in a fiber-optic system. Multiplexing reduces
the number of the required signal paths and the complexity of cable connectors. The resulting
enhancement of system performance and the savings of space and weight may make fiberoptic
technology highly cost effective for avionic systems.


PARTICIPANTS

        The ALOFT project began in March 1974 when NAVAIR assigned NELC the responsibility
for conducting the fiber-optic investigation. The project came to an end in February
1977 after more than 107 flight-test hours of the fiber-optic A-7 system had been conducted
by Naval Weapons Center (NWC), China Lake, California.
       NELC was tasked by NAVAIR to manage the ALOFT project and to perform evaluation
tests on fiber-optic components. IBM, Federal Systems Division, Owego, New York,
performed the system design, fabrication, and integration. Ling-Temnco-Vought (LTV),
Vought Systems Division, Dallas, Texas, developed an installation plan and performed the
initial system ground tests. The Naval Weapons Center, China Lake, California, supplied the
necessary software for the system, safety-of-flight verification, and the flight test facilities
for the ALOFT demonstration. NWC also installed the ALOFT system in the aircraft and
performed ground and flight testing. The Naval Air Test Center (NATC), Patuxent River.
Maryland, evaluated the reliability and maintainability of the system. Emi and lightning susccptibility
tests were performed by LTV, McDonnell Aircraft Company, and personnel of
the Flight Dynamics Laboratory, Wright-Patterson Air Force Base, Ohio. McDonnell Aircraft
Company, using data and analyses supplied by the Naval Postgraduate School, Monterey,
California, executed an economic analysis of the ALOFT system.
"A great civilization is not conquered from without until it has destroyed itself from within." - Will Durant, American historian (1885-1981)

Offline PaulMM (Overscan)

  • Secret Projects Forum Founder
  • Administrator
  • CLEARANCE: Top Secret
  • *****
  • Posts: 9002
  • Paul Martell-Mead
    • Secret Projects
"They can't see our arses for dust."
 
- Sir Sydney Camm

Offline Bill S

  • Top Contributor
  • CLEARANCE: Secret
  • ***
  • Posts: 369
Re: Vought (LTV) A-7 Corsair II Projects
« Reply #126 on: April 19, 2014, 02:08:06 pm »
Low Speed Wind Tunnel model of a two seat strike fighter.
It has strakes, Pave Penny, UHTs still original configuration
and a large dorsal box for the refueling receptacle.
Photos VAHF


bill
« Last Edit: April 19, 2014, 02:21:10 pm by Bill S »

Offline Bill S

  • Top Contributor
  • CLEARANCE: Secret
  • ***
  • Posts: 369
Re: Vought (LTV) A-7 Corsair II Projects
« Reply #127 on: August 10, 2015, 07:28:30 pm »
Here are some drawings of the A-7K with the GE F-110 engine installation that was proposed in 1984.
There is not a V number or A-7F associated with this proposal. VAHF Archives



These are a simple general arrangement.
Inboard profile
Detail of the engine installation

Offline Bill S

  • Top Contributor
  • CLEARANCE: Secret
  • ***
  • Posts: 369
Re: Vought (LTV) A-7 Corsair II Projects
« Reply #128 on: August 10, 2015, 07:35:57 pm »
Here are the slides of the A-7D with the GE F-110 engine proposal, VAHF archives


General arrangement
Inboard profile
Engine installation

Offline Bill S

  • Top Contributor
  • CLEARANCE: Secret
  • ***
  • Posts: 369
Re: Vought (LTV) A-7 Corsair II Projects
« Reply #129 on: August 10, 2015, 07:48:34 pm »
One of the biggest benefits to the GE F-110 installation was all that thrust.
The attached chart shows the benefits of that power plant over the TF-41.


Sustained speed while jinking was an important improvement.
I had a fighter pilot tell me that "after two turns you could pop them like a grape".

Offline Sundog

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 1923
Re: Vought (LTV) A-7 Corsair II Projects
« Reply #130 on: August 10, 2015, 09:16:56 pm »
Thanks Bill, I didn't even know these earlier versions (Earlier than the YA-7F) even existed.

Offline hesham

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 14383
Re: Vought (LTV) A-7 Corsair II Projects
« Reply #131 on: August 11, 2015, 05:05:57 am »
Nice find Bill.

Offline martinbayer

  • CLEARANCE: Secret
  • **
  • Posts: 247
Re: Vought (LTV) A-7 Corsair II Projects
« Reply #132 on: August 12, 2015, 01:05:59 pm »
A university study for a Strut Braced Wing demonstrator using a re-winged A7 aircraft that was proposed to NASA Langley: http://www.dept.aoe.vt.edu/~mason/Mason_f/AOE275SBW.pdf

Martin