Wednesday 29 October 2014

Boarding Ladder




Climbing back into a boat from the water is something that most sailors must have thought about at some time, whether it is simply getting back on board after a swim or back on board after falling overboard. While climbing back in after a swim is hard enough, climbing back in after falling overboard when fully clothed and after your life jacket has inflated must be neigh on impossible.

Tra Bhui has high sides for a Drascombe. The overhang at the stern precludes the use of the outboard well as a useable footwell, so anyone climbing back in would face a very real, challenge indeed.

For reasons of safety and convenience a ladder of some sort was required. To my mind the only effective ladder is a rigid one and one which can be properly secured to the boat.

While there are numerous “rope” type ladders on the market, none of the ones that I have seen adequately address the issue of the rungs moving under the boat when you try and stand on them. While rope ladders may offer a means of getting back into the boat for a youngster in a swimming costume, they were not a solution that would give me the confidence of being able to get back into the boat myself if I was fully clothed, nor would they really make it any easier if I was recovering someone else.

Ladder Mark 1

A few years ago Douglas Hopwood came up with a design for a collapsible wooden ladder that he had used successfully on his own Drascombe Appuskidu see: -  http://www.hopwood.uk.net/Drascombe%20projects/Boarding%20Ladder.htm

This appeared to be a pretty good solution and one which I thought I could adapt and make work on Tra Bhui.

Cutting the side section out of marine ply
The idea of the ladder is that it folds flat and can be stored on edge just inside the gunwale, between main sheet horse and the stern of the boat. If required the ladder could be reached from the water and lifted into position. The top of the ladder would hook over the Gunwale  and the ladders profile would match that of the hull thus preventing it from swinging under the boat when anyone stood on its lower rungs.

Using some off cut 8 mm plywood I made up some templates of Tra Bhui’s hull as the two legs of the ladder would need to be slightly different if each was to be scribed to fit snuggly against the hull as not only does the hull taper in three dimensions, but the rubbing strip around the hull closes in on itself.

Starting to round the edges
With the templates made I transferred the pattern onto some 20 mm marine ply.  After cutting out the plywood, priming and painting it (yellow to match the hull) I assembled the ladder and tried it on Tra Bhui.

While the ladder fitted well it was not as long as I would have liked (the length is governed by the distance available for storage between the main sheet horse and the stern), it took up a lot of room when stored on deck and made getting into the rear port hatch a bit of a mission and it was hard to reach from the water due to the physical height of Tra Bhui.


It was a solution, but it did not really suit the Gig.  I felt there must be a better solution to the problem of getting back into the boat from the water.

N.B. The ladder I made was not made from Douglas Hopwood’s plans. I am sure Douglas’s ladders work well and no doubt suit certain Drascombes better than others; I simply picked up on his concept and made a larger one for the Gig.

Ladder Mark 2
Mark 2 Ladder 
The solution to the ladder problem was in the end pretty simple. I bought a quality stainless steel  one (Grade 316 stainless) from Germany. This ladder is telescopic and extends to 1.2m. It is hinged allowing it to be stored upside down. Storing it upside down means that it is normally collapsed. By releasing it can be swung vertically through 180 degrees which allows it to fully extend into the water.



Ladder stowed and ready for use
The ladder is simply secured by 4 stainless steel bolts through the hull just below the Gunwale. A teak spacer holds the ladder clear of the rubbing strip. To release it, it is simply a matter of undoing two half hitches. The ladder then simply drops into the water.  By placing the ladder beside the end of the main sheet horse the load on the hull is dispersed on both sides of the boat and the horse provides a handy handhold when using the ladder.







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