HSL 156

I am not going to describe my version but to point the way although you seem to have a lot of info already. In the books " Royal Air Force Rescue Boats by Geoff Pilborough and colour plates by John Pritchard" isbn 0 9510266 8 2 ( part one ) there is a drawing with the boat in grey when it was at Newhaven, it also shows the extra guns added in line with forward turret on the deck at each side, also in the book " Sailors in the RAF by Keith Beardow" there is a photograph of the crew on 156 and clearly there is a view of these added guns. I don,t know what drawing is given by Deans but the  plan of HSL 156 by John Prichard is still available, as are all of his others through "Model Boats" ( who now seem to go by another name) . The painting by Steve Farrow shows it with a yellow deck and these extra guns, but i don,t know if he was correct although my boat is in yellow with an oerlikon. By the way if you havn,t built a launch of this type before balance it about 2/3 from the bow, at least make that your starting point.