We will be racing DPN and since it is not a measurement based system, how do you give a beginning rating? Or do you sail some events as a non-competitor to generate data points?


It will be a real frankencat.

looks slow... needs more sail area... or an evinrude. <img src="http://www.catsailor.com/forums/images/graemlins/grin.gif" alt="" />

I was thinkin a ketch/junk rig w/ lee boards...

I don't know the answer to your question... but i'd suggest investing in some cradles for your trailer for those HT hulls.

That trailer is a temp. The aluminum trailer will get a ply deck w/ carpet. Cheaper, easier and supports the hulls better than cradles.

I thought those looked like HT hulls. Definately use cradles or a well padded flat deck. The hulls are very "tender."

Up the frankenboat factor with some risers for the rear beam.. absolutely necessary IMO with that boat in any sort of chop downwind.

I'm not sure that a flatbed would support it better. You have to remember that there's rocker in that there hull, and strapping it down to a large planar surface might result in the hulls getting "flat spots" where it met the wood.

There's a reason why everyone uses those cradles, and its not because they are cheaper than plywood.

No worries on the trailer. We can trim in foam to fit the hulls.

BTW, I have a relatively easy and cheap way to make those risers if you want to know how.

Flip the hulls over, cover in plastic wrap or tinfoil and then some glass and resin. Piece of small al. pipe glassed in for mount point.


Anyone have an answer for my question?

I meant risers to get the rear beam further from the water. Have you noticed how much the rear beam slaps the water and slows you down when running downwind?
anyway...
take the dpn of the original boat and then use all the multipliers to get to a decent starting point. There are modifiers for oversized main, no jib, jib on a boat normally without, etc etc etc...
http://www.ussailing.org/portsmouth/tables06/modifications06.asp
tell us what you did to change the thing and we can then calculate a starting point at least.

LOL.

Transferring the dead G-cat rig to it. So the 59 is not going to be accurate.

Yeah, that is going to be complicated. Are you putting a jib on it too? not that you asked, but might be a problem with loading up the bows with a forestay low enough to get the jib on. Will pull the hulls in too much. May need a bow foil... but I digress.
The 59 isn't accurate for full on HTs either!
Get it out and do some speed trials against a known DPN boat and see how it plays out. In the end you will probably need to bargain with the race committee. I don't see it as a huge problem with maybe local club racing but it certainly would be if you had some high maintenance competitors around or if you were racing the boat in an Alter Cup qualifier etc. In the end though, people who have been more involved with RCs would be better to chime in (JW, JK, etc)

Just racing for fun. Yes, the jib is going on it so some type of foil or crossbar will be necessary.

leave the jib off and put on a spin. Ive got one for you, came off my F18. Its in fair shape, but its cheap! Get that boat to Tommy Whitside, we will rate it for you. And Bill Hendrix will be there with his one off TheMightyHobie18/20(were not sure how long it is) but its got a nice Tiger main on it, and he is one of the best sailors around. His Frankenboat rules! he is the aster at making a sq top out of an old sail.

Very cool, Dave. That plan was for jib AND spin or hooter. And yes, reinforcing key points. We have an old Stiletto main that could be used for sail mods.

PTP,

I'm currious, how do you put in the risers for the rear cross beam?

Construction, mounting, etc.

Ditto.

Glad to see you got that thing bolted together.

I cant help on the rating.

Yes, to the cradles not rollers.

Rear beam risers were traditionally made for the HT out of carbon, only a handful of boats added them, the boat will slap the chop downwind, but you'll need a very short steep chop and frankly the condition that causes the slap doesnt happen that often in my opinion. If its honking out, it will happen, but under 15knots probably not very often. I wouldnt worry about it for now. Chicken lines are an easy way to deal with the slap. The Risers I've seen were made by a guy in P'cola area, Bauwman I think was his name, I probably butchered that. Anyway, carbon bolted to aluminum isnt a good idea, its a nice way to get all kinds of electron swapping. I wouldnt do it.

If you are really set on risers, call Forte RTS, order a new carbon rear beam for $400, he's got the spec's, ask him nicely for a couple of cut-offs of the same diameter and glue them on, layer on carbon cloth to taste. I can post pictures of my beam at some later point.

Bill