Ryan, I'll let Joe Baugher, give you the differences. I edited some of his explanation for the sake of brevity.
F-8The F8U-1 was the initial production version of the Crusader. The Crusader test flight program had gone so smoothly that the production F8U-1 was almost identical to the XF8U-1 prototypes. The first production F8U-1 (BuNo 140444) flew for the first time on September 30, 1955, the same day as the maiden flight of the second XF8U-1.
The engine powering the F8U-1 was the J57-P-12A engine, which, after the delivery of the first few dozen aircraft, was supplanted by the J57-P-4A offering an afterburning thrust of 16,200 pounds. The F8U-1 carried an APG-30 gun-ranging fire control radar.
In order to show off its new fighter, the Navy decided to use the Crusader to capture the World's air speed record, held at that time by the F-100C Super Sabre at 825 mph. The Navy felt that the Crusader could beat that record by a substantial margin, perhaps even giving the Crusader the distinction of being the first aircraft to set a record that exceeded 1000 mph.On August 21, 1956, Cdr "Duke" Windsor in F8U-1 BuNo 141345 (the twelfth production machine) hit an average speed of 1015.428 mph in two speed runs in opposite directions over a 15-kilometer course at an altitude of 40,000 feet over China Lake, California.
On June 6, 1957, two F8U-1s, piloted by Capt Robert G. Dose and LtCdr Paul Miller took off from the USS Bon Homme Richard (CVA-31) steaming off the California coast and flew to the USS Saratoga (CVA-60) waiting off the Florida coast. With one midair refuelling over Texas, the planes made the trip in 3 hours and 28 minutes. President Dwight Eisenhower was aboard the Saratoga to greet the crew as they landed.
Fulltext :
http://home.att.net/~jbaugher1/f8_2.htmlA-7The Ling-Temco-Vought A-7 Corsair II was the result of a May 17, 1963 Navy design competition named VAL, which stood for Light Attack Aircraft. The VAL aircraft was to replace the Douglas A-4 Skyhawk, and was to have as its primary mission the delivery of conventional ordnance as opposed to nuclear weapons. The aircraft was to have a single seat, and the requirement specified that the aircraft would have to be in service no later than 1967. The Navy was interested in low cost, and specified that the aircraft would have to be
based on an existing design. In addition, in order to save even more money, the requirement did not call for supersonic performance. A maximum bombload of 15,000 pounds was called for. One of the more important features of the V-463 was the presence of no less than eight external stores positions. Two of the hardpoints were on the fuselage sides just ahead of the wing leading edge, and were each capable of carrying 500 pounds. There were two inner underwing pylons, each capable of carrying 2500 pounds, and four outer underwing pylons each capable of carrying 3500 pounds. The aircraft could carry virtually any of the offensive weapons in the Navy's armoury. The aircraft was also armed with a pair of 20-mm Mk 12 cannon with 600 rpg, one gun on each side of the air intake.
The engine used was a non-afterburning 11,350 lb.s.t Pratt & Whitney TF30-P-6 turbofan. No afterburner was needed, since supersonic performance was not called for in the requirement.
For full text see:
http://home.att.net/~jbaugher4/newa7_1.html I don't think bad about you for asking this, Ryan. I didn't even go to the gun cabinet !
And Ryan, come on, nobody hunts in the dining room, you hunt from the comfort of your living room couch !
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And Ryan, come on, nobody hunts in the dining room, you hunt from the comfort of your living room couch ! 
Anyone have photos/current disposition of these two?
