Fascinating stuff.
Mark Nankivil said: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
ReccePhreak said:It would be interesting, but a real challenge, to convert a 1/48 A-7 model into the twin F404 version.
Larry
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.
stimpy75 said:some more pics i have found in the web
and the side where i found them
http://beyondthesprues.com/Forum/index.php?PHPSESSID=1crb2b74iebvlbjed8u0be95v4&topic=968.0;all
Bill S said:stimpy75 said:some more pics i have found in the web
and the side where i found them
http://beyondthesprues.com/Forum/index.php?PHPSESSID=1crb2b74iebvlbjed8u0be95v4&topic=968.0;all
I have seen those before, like on this forum. B)
MIRAGE 4000 said:Vough proposed an A-7E "French Navy" (A-7E Export) with French carrier suitability (catapult, nose gear tow)
It was proposed with Aerospatiale in 1972.
I have some details, if you want.
The Navy was sufficiently impressed with the increased power offered by the Spey, and decided to use this engine for its own version of the Corsair II. The designation A-7E was assigned, and this version was to succeed the A-7A in production. However, there were delays in the deliveries of the TF41-A-2 engine specified for the A-7E, so the first 67 aircraft of the order were delivered with the TF30-P-5 engine. These aircraft had all of the other improvements planned for the A-7E, including the improved avionics and the M61 rotary cannon, and were redesignated A-7C after delivery.
MIRAGE 4000 said:Vought proposed an A-7E "French Navy" (A-7E Export) with French carrier suitability (catapult, nose gear tow)
It was proposed with Aerospatiale in 1972.
Bill S said:Opens up a number of interesting questions: what would be used to counter the weight,
Silencer1 said:Hello, Bill S!
Bill S said:Opens up a number of interesting questions: what would be used to counter the weight,
Thanks for sharing!
I wonder, if the drone with it's wing requires counterweight - at least at flight. From other hand, during taxiing and take-off it's weight should be taken into account. What's the weight of BQM-34, did you know?
RAP said:AWST article from 1977 on twin engine A-7.
MIRAGE 4000 said:Vought proposed an A-7E "French Navy" (A-7E Export) with French carrier suitability (catapult, nose gear tow)
It was proposed with Aerospatiale in 1972.
To help win the contract, Vought put some of these models on the desks of Marine Nationale procurement officers. I'm sure there were some Super-Etendard models right behind them, trying to shoot them down ...
(thump !) 'was the sound of my jaw hitting the ground, Wile E. Coyote -style.
What a beauty ! Welcome to the forum Manolis.