Afternoon All
Realised it was a while since last update, so here's some progress.
I've now started to bond the various pieces once they were tweaked and persuaded to fit. I'm finding that accuracy is very hard to maintain when scaling up, tolerances of transferring plans to wood, cutting that wood, is not the same as telling a laser cutter / CNC to cut another set of frames / parts... Some parts I'm having to sand to fit, some I'm actually building up a mm or so.
So the bow is now pretty much in one structural piece:

The boat itself remains in two parts.
At the stern, the stringers that run either side of the shafts are now bonded to the transom and the two frames near the stern:


The space between the stringers has been made solid between the transom and the last frame, I've then routed out slots to take the P Brackets, also for the two exhaust stubs, and then built up and drilled for the rudder tubes. This is now a very rigid section and the running hardware should be kept well aligned.



Also been busy getting the transom elements to all fit nicely, I'll post once that's all sorted and bonded.
The stringers are deeper than the frames so I can trim them in place to match the line of the hull.
I'm pondering the keel joint at the moment, I think some additional stiffening / strengthening is called for... On the 1/10 version its just a 3mm ply plate each side of the joint, then it relies on the planking for strength. I can do that and will with 6mm ply plates, but think I need the additional stiffening. The bow is almost a cage of ply parts, so rigidity is build in, and the stringers have made the stern part of the hull similarly rigid... I'm thinking a pair of mid hull stringers that lace into the bow and stern sections, we'll see.
That's it for now on the 1/5th.
Have had the 1/10th Aquarama out on the water a few times this year, this was in the sunshine at the excellent MBM Wicksteed event:

Huge thanks to everyone involved in organising a great weekend..!
Very best regards to all.
David.