The A-10 is laughably small... Someone did some comparisons I think, and they said they thought the Terminator A-10 was 1/35 scale or something? Very diminutive.
To be fair though, a scale A-10 is a massive plane... One was mocked up and planned at one time by either Admiral Toys or 21st Cent. Toys (I think 21st) and was displayed, and it's truly huge. It was so big that they felt it was a real risk to try making it (this was several years ago). It's really a big, big plane though. For comparison I think the Rattler's at least half the size or something.
On a more fair scale though, and a good price, Power Team Elite made a fantastic A-10 but it's underscaled by a smaller margin. Still a noticeable margin, but it's bigger than the Rattler.