If I hadn't been able to tell by the Fujimi, the hex base shows it to be 1/72 or 1/76 model: I forget what Fujimi billed theirs as.
Hmm, will have to look up about the contest, haven't looked at any of the contests for ages.
"There are a thousand things that can happen when you go light a rocket engine, and only one of them is good."
Tom Mueller of SpaceX, in Air and Space, Jan. 2011
It's 1/76 as I recall - I'd have to double check the box. It was a great series - I want to say the molds were originally Nittos, but my memory is getting fuzzy. I'm not sure why Artic elected to jump in down here, but I'm glad he did.