Just measured the model:
Base size is 82mm square.
Falcon is about 130mm front to back and about 98mm across.

Thank you, very kind of you.

I just bought the Revell 1:241 scale Falcon from Amazon (UK) as it was on a special offer - £1.90 or thereabouts, as long as you spent at least £20 on other products. It so happened I needed to order a 4-volume book set (The Bandits of the Marsh), so....
It's a little small, measuring 110mm by 80mm, but I could live with that I think...