I used the net, Mini, thanks.
The only hit I found on Yahoo referring to an F-GF Hellcat is an ad for the intrepid where the text is the same as the article.
I called the Intrepid and the Aircraft they have is a reproduction of an F-6F-5 Hellcat. Simple typo, though the gentlemen, who seemed a bit confused explained that other aircraft companies were contracted to build the hellcat during WWII to meet demand, thereby possibly creating the F-GF designation. However, I volunteer at a museum dedicated to Grumman and Fairchaild-Republic. I was taught that the TBF, and F4F were subcontracted out to GM, primarily, so Grumman could concentrate on building the F-6F alone. I was not aware of any other contractors building the Hellcat.
The same ad advertises a local attraction for one's pleasure as the Observation Deck of the WTC. Time to update the page, I think.
The other 2 were questions, not statements. I know the A-12 existed, and it had some relation to the SR-71.
AS for the Carrier, perhaps the Intrepid we speak of was the last ship the Navy had by that name, having reused the name from much older ships.
A navy man should be able to answer this in a heartbeat.