Monday, 24 November 2008

Transom, Frame 6a & steaming & fitting the stringers

April 2006 : After fitting frames #1 -#6 and the chine stringer and experimenting with the outboard well, we were ready to fit the transom and frame #6a into position. As both had been modified in terms of thickness we had to 'adjust'the position of #6a so that the internal dimensions of the well were sufficient for us to get the yamaha outboard in!

We also decided that we would reinforce the joint between the bottom board and the transom by putting in a couple of 24mmm thick ply 'knees'.

All the doublers completed for the stringer/frames joints. Paul rigged up a simple router jig and completed the 'boring' job in no time - well, a few days. What would we do without machinery?

Before steaming the stringers we used a thin batten of the same width as the stringer to fit through the notches to ensure a good fit and line but, more importantly, to give us an indication of the amount of fore and aft bevelling required in each frame notch.

We also decided that before fitting the stringers it would be a good idea to cross-brace as much of the frame work and stem as we could to try and reduce the possisbility of 'twist' as pressure was applied. This made access to the 'inside' of the boat quite difficult and we often cursed the bracing but I'm convinced it was well worth it. 9mm thick ply frames look very spindly on their own, even if they are best quality marine "Robbins Elite"!

Paul made a simple jig that enabled us to pull the steamed stringers into the frames, before drilling and screwing and, as usual, leaving them for a couple of days to acquire the correct shape before removal, epoxying and re-screwing. It all worked like clockwork.

I see from the build log that Anne also did a lot of work, so when I say 'we' - that is all inclusive! I also note that one day she brought down a fantastic BBQ (yes, even in April - we're Brits you see) with home made sausages, chicken and bean salad all washed down with a good Alsace Pinot Gris. That was followed by a fruit salad in rum punch warmed on the BBQ in foil. Sheila produced home made vanilla ice cream and meringues and "voila", a feast. This boat building lark is easy. More wine?

No comments: