thanks for the info here are both my boats both needs doing up

thinking as 2 grandkids is it 1 each

Yes looks like one of each. Nice.

Hi BOATSHED,
The wooden block is screwed and araldited ti the keel and supports an Aluminium bracket designed for holding a Brushless motor in an Aeroplane, use what’s available I always say.
The coupling is Silicon tube fitted to brass universal coupling fittings and because the way brushless run is very quiet compared to a normal Unversal Joint assembly.
Will post it running shortly.
Thanks for you interest. Graham

Now I understand. Yes Make do and substitute.

Great model ! I actually exchanged a number of emails with Gary Fry, who is/was the owner of Manu Wai and ran her for a while in Sydney Harbour till engine problems stopped him . Not sure if she is still afloat or if he still owns her, but she was in a pretty bad way a while ago. I think Gary was trying to get a club or museum to take over the maintenance as she needs a lot doing (new motor etc.) Used to see her often on the Waitemata Harbour here in Auckland, and have a photo of her not long before she went to Australia. Was the last working PT20 in the world. As a kid I saw her first public arrival at the down town terminal when she was new. First time I'd ever heard air horns, hundreds of people jumped when the skipper let them rip. Typical Italian stuff !! a space ship in those days, nothing else like her ! Shame to see her decay, hope she is rescued. I will put a pic up when I can. There are a number of vids on You Tube, in both Auckland and Sydney. Just type Manu-Wai in search and you will find them.

She's a beauty!!! (And I am not talking about only the lady in the cockpit!)

I grew up a block away from the river, and there were a lot of pleasure craft in the area. Most of them were pre-70's as I left before then.

Thank you, Peejay!😁