Originally Posted by Paul Beaurain
Who knows their Delta Ribs...
These boats usually had twins on the back. what HP was normal and engine weight also?
If a single were fitted, what is the max the boat/engine is rated for?
I am guessing that a single 150 or maybe a 175Hp would about be max for this.
the transom of my (6.8 m) delta is 55 mm or so, however for our inboard diesel to ultra long single 250hp 4 stroke we are making 2 struts from the inner side of the transom forward to support the engine/weight of engine, just to be on the 'save side'. I reckon the transom would sufficiently support the engine anyway....
I know that one of the private lifeboats organisations in the netherlands ('t span - andijk) have a delta 8.9 m who had some problems with a twin 4 stroke setup which turned out to be too heavy for the transom but i understood that was because they had put 2 x max horsepower for 2 stroke engines (lighter) as 4 stroke engines (= much heavier) on the back..I noted that boat also has a strut going forward for support nowadays.
reckon delta themselves are able to tell you indeed ....