My dad's idea was to have windows like an airplane, aluminum frames having the right shape and then just installed in the cabinsides. John Luhrs later thought it was best to use the same commercially-available portlights all other boatbuilders used; and the design went downhill from there.
It was my idea to extend the settee berths under the bulkhead-- I had seen it on some more-obscure boat before. By doing this we got a 5-berth 25-footer that still has a decent cockpit.
The wrap-around coaming was my dad's idea but we all (Bob Seidelmann, my brother, Warren Luhrs, my dad and I) contributed to it. It is good-looking, if awkward functionally, except for at the back where it finishes off the cockpit very well.
The semi-flush deck (cabinsides tapering into nothing ahead of the mast) made my dad call this initial edition the 'blister-canopy' (as with the Supermarine Spitfire) or the 'bubble-top' (what they called the North American P-51C with Malcolm hood). Once a fighter pilot, always a fighter pilot....
The rig is tall and the boom short, typical for an IOR-influenced boat of this period-- it's technically high-aspect. The narrow stern is an IOR feature as well, meant to get the smallest-possible girth measurements to 'defeat' the rule. Still the boat rates 19.4, not 18.0; and so it is not a quarter-tonner.
The narrow stern actually makes the boat appear and behave very much like a double-ender, being responsible for the boat taking a following sea rather well and leaving the water close to the way it found it (if the outboard is not too heavy or kept down).
Notice that the mainsheet in this drawing goes straight down to where Diana's bridgedeck-mounted traveler goes. ;) Also the plan drawing appears to indicate a bridge deck, which was not as-built.
I just noticed that this drawing shows the deck having scalloped handrails, not those little teak sticks that went on production boats. They also appear to extend a little too far forward. By some bizarre coincidence (for I did not examine this before I made them!) the handrails for Diana look exactly like the ones in this drawing.
The parallelogram keel is a sign of the times (1972). In 1974 it would have had a vertical trailing edge. The semi-skeg in front of the rudder is as well; in 1976 my dad would eliminate all but a minor dimple there on the Raider and by 1978 he had said he should have done without it entirely.
Other than this, the Raider 33 looks like a direct descendant of the Hunter 25. Both boats are noted for early heeling, stability once heeled, good pointing ability and the tendency to be driven hard by the jib (throttle) and steadied by the main (shock absorber). I call this a 'hellandback' boat, because that's where it'll take you.
