I’ve been rather busy the past few weeks with some boat renovations.
Two older Carl Douglas boats that were in good condition overall considering their age (both from the early 1990s) have now received a new lease on life.
Both needed repairs to the washboards (a common issue) but otherwise were largely in need of a rub back, minor touch ups, the a new coat of shiny and protective clear coat.
Please, for my own sanity if nothing else: If you own a CDRS boat, don’t cover things up with tape and mean to get to it later. It needs attention now – even if only a temporary repair – so that it doesn’t get worse! Once exposed, timber does degrade quickly.
The growth of the boat renovation side of things means that I’ll need to reorganise the workshop to give me more room. A good thing, even if it means a few days of hard work and complete disarray!
With the Boat Races taking place today, you may have wondered how the Oxford and Cambridge Boat Race crews try to stay dry, there are a number of ways.
I was working down on the Putney embankment and had a quick look at the CUBC boats. This is what I saw…
Special splash boards: Bolted to the underside of the gunwale flange are some custom made wide boards. Made from sheets of a carbon-foam-carbon laminate and cut in sections to neatly match the shape of the boat.
The extra 10cm or so width helps to keep the water out, but it looks like they would be a time consuming pain to fit and remove, and carrying the boat would be much more difficult.
Taller gunwale edge: These boats also have a larger freeboard height with about 40mm added to the height of the gunwales. This would be easy enough to build as it would only require some extra sections to be added to the standard production mould in the factory.
To ensure clearance for the hands, one of the rigger mounts is now inside the boat (instead of on the other gunwale flange) on a special carbon section. See the twin sets of mounts on each side of the hull.
The riggers are custom made to allow for this difference in height. Easy with alloy wing riggers (as per the Goldie boat), but the carbon riggers on the Blue boat must have required some special work. I can only presume that a whole new set of moulds were needed – not cheap!
Other ‘tricks’: The boats for both universities have used electrically powered pumps for some time. The coxswain’s seat has a switch to activate these. The technology has improved steadily over the years and the current designs are very light and powerful. Lithium Ion battery packs are a welcome improvement over the old heavy lead-acid motorcycle batteries of years gone by.
I wasn’t able to see the details of the pumps, but each boatman has their own special tricks and ideas about the best way to set these up. Differences between the clubs would include number of pumps (one per seat, one per two seats), location of piping, types of valves used (to prevent air-locks in the pipes for eg) and so on.