Scarlattikvarten differs from the original Spyder design in a number of ways. Some changes were made when we built the boats and others have been introduced over the years. The following table is a summary of all this.
Major changes and some other 'progress':
|1986||Stretched hull aft-body||Longer and straighter run.|
|Simplified cockpits||Better ergonomics and shorter building time.|
|Dolphin and seagull strikers.||Simpler and stronger.|
|Aluminum mast||No time to build wing and lighter|
|Ackermann tiller geometry||We though this is the way to do it.|
|1987||Balanced rudders||Ease of helming.|
|1989||New cross-beams and 0.5 m wider.||Old beams under-engineered.|
|1991||1 m higher mast.||Got a good deal on a used, higher main.|
|Assym. spi. on bowsprit.||To fit new rig.|
|1996||Deeper dagger boards.||Greed for windward speed.|
|1998||New aluminium mast.||Stronger, lighter, better shape|
|2004||Dolphin striker replaced by beefed-up laminate on beam.||Convenience on trailer and at mooring.|
Apart from this I have tinkered quite a bit with main-sheet and other sail controls. Some of this does a surprising difference to how sweet the handling of the boat is. The net effect of all this tinkering and re-engineering is that Scarlattikvarten has gained some 20 kg of all up weight, the up-wind sail area has increase little over 4 sqm and the down-wind area some 10 sqm. The rig is about 1 m higher and the dagger-boards are some 25 cm deeper. Top speed is probably lower but average speed and windward capability is definitely better. Above all she is quite a bit sweeter to sail.
A friend of mine commented some years ago that the only parts left from the original boat were the hulls. I had to point out that the boom, the rudder blades and the engine pod also are from 1986.