I have a picton 170gts that needs new stringers and keel they are 1 1/4 inches wide. My friend says they are not structural because they are to thin so don't need to be fibreglassed in so heavily. I think they are structural can someone please help so I can get on with the job.
Hi I have a 1977 140hp bubble back with a 13 1/4?17 prop on a picton 170gts that weighs about 500kg without the engine what sort of speed & fuel consumption should I expect from this set up