Hi Dave,
I'm glad you found the SR/BHC web site. It has dimensions under the "specification" tab on some pages.

It is good to look at for the construction photos and the explanatory drawings, but the collection of photos is a bit pricey at £5.50 each. Perhaps they could do a deal for a serious modeller and find some better drawings or send digital versions of photos cheaper. Trouble is when you do that they pop up everywhere on the web and bang goes their profit from their intellectual property.

The usual Russian sites have dimension data too, probably all copied from the same source. They have loads of interesting subjects. I'm grateful for the info but worry about the legality - perhaps copyright does not apply there, because most seems to be plagiarised without recognition or permission.

There are lots of other pages if you use Google to look for Saunders Roe Princess and a few for Saunders Roe SR45, but I've not found any better plans or data yet.

regards

Jerry