This worked okay for my Tiger (alothough 2006 model, with the trampoline stretched along the hulls rather than in tracks) as winter storage outside in northern Illinois: I left the boat on the trailer with the mast (track-side up) on the caddy in front & tied with padding alongside the traveller cleat at the rear. I stretched a tarp across the boat & mast, centered on the mast as the ridge pole. I tied the tarp under the hulls & trailer from side to side using rope, with shock cord to keep the ropes taut. In the front, where the tarp extended in front of the bows, I sort of wrapped the corners back & down & tied them to the trailer tongue; similar to the rear of the transoms.
That worked okay, although some snow piled up on the sides, but mostly on the hulls. The tarp sagged a bit under the weight, but it appeared to be pulled back up by the shock cords when the snow melted, so that there was only a little standing water on the tarp.
Before putting on the tarp, I took off the sidestay anchor eye bolts(it might be a good idea to plug the holes to keep water from getting in & freezing, just in case), put carpet padding on the protrusions of the mast, & tied the mast so that the ends of the spreader arms would stay level.
The tarp lasted the winter, although if I remember right, it wore through on one of the hull rear corners. Padding there would help, but beware the potential for staining from dye.
Tarp specifics: Here's what I bought:
From Tarpaflex:
"WHITE HEAVY DUTY POLY TARP Ref: 20
White heavy duty poly Tarps are manufactured from tough low density polyethylene, laminated on both sides with high density polyethylene which makes heavy duty Tarpaulins strong, tear resistant and 100% water proof."
Link:
http://www.tarpaflex.com/acatalog/White_Heavy_Duty_Poly_Tarps.htmlCut (nominal) size: 16 ft x 32 ft would have been nice, but is not offered.
I used 16 ft x 30 ft cut size = 15 ft 4 inches x 29 ft 6 inches, which meant that the tarp did not cover the base of the mast, over which I put a couple of plastic garbage bags.
Cost: ~$US 72 in November 2007, including shipping
I am going to take another look at the tarp we used last year to decide whether to buy a new one this year, or tape up the worn parts of the old one with duct tape.
If you find a slightly longer tarp, would you let me know?