IPKSA - why change something that works? although the only thing about this type of steering geometry is that there is no self centering, its a pain to push along, raising the front end and pulling is the only option. There is also a little bit of under steer at speed.
Seat on and chassis bracing on, only temporary seat cover, I needed somewhere to sit and ponder over mast and rigging assemblies!
Mast foot attached with the pinch bolt method same as rear axle, fitted a stop inside about 250mm down from the top for the mast to sit on, the mouth was later flared. 10 deg rake. Anybody in the Highland region looking for a good metal stockist, I used B&M Steel in Inverness, they only sell stock lengths but at a reasonable price. Therefore I have enough steel left for the next two projects!
Some Scottish weather never held me up, The uncut sail on, its a Tushingham 4.2m2 I unpicked the mast sleeve, cut off some of the luff curve and attached it back on with double sided tape, Then I broke the wifes sewing machine! A local tarp specialist charged me a fortune to finish the job! gutted! £70 for only 8m of sewing? We have a saying in Scotland, "ripping off gypsy b*#@&£d"
Sewing machine fixed! Seat cover made from reinforced polyamide (I think?) Punched some eyelets around the perimeter and attached with some cord, just like a trampoline but without the bounce!.
Rigging on, this Dolphin sail was made from lighter cloth so I was able to modify it myself, its about 4.5 m2 after the cutting. I added a single batton to hold its shape. The boom is the same 1" tubing from the forks, A rowlock pinch clamped into the end to allow replacing if needed, a couple of anchor loops for the sail carabiners to attach, a stop ring to prevent the rigging sliding down the boom and last but not least a small lumi flag to stop people walking into the end of it!
My son enjoying the 20 knots available that day at Dornoch beach.
Well thats it folks, I'm about £3oo light and put in about 20ish hours graft, not too shabby if you compare that to the cost of a Blowkart.
I have some other action shots which I will dig out and post as soon as I can.
I have also started the Mk2 version, Seat redesign, wheel change and rigging changes, but kept the chassis design 90%ish, I will keep you all informed.
Thanks for looking.