Does anyone know the actual displacement of both the lighter and heavier H-18's?

Does anyone know the actual dispacement of the early Nacra 5.8's?

I'd appreciate your thoughts or web links that you might have.

Thanks

Mike

5.8 was 160kg- 353lbs, factory spec

TheMightyHobie18 had a min class weight of 400lbs- but tended to be a little over that

I also posted this question of the Hobiecat.com forum.

In case anyone is reading this wanting an answer to this question, here was the response that I liked the best.

"My 1982 weighed in @ 435#at the 2001 Nationals, My 1988 weighed in @ 411# at the 2003 Nationals
If your only concern is with the weight of the boat as you are moving it around on the beach, take the Daggerboards off when you are moving it, and there's your difference."

"At the Clear Lake nationals, the Heaviest Hobie 18 in the event was one that had been badly damaged and poorly repaired, it weighed about 465# and his two best finishes were in the lightest air races. If you let the actual weight of the boat get into your head, you are only messing with yourself. I lose way more in one bad tack than I ever give up because of a boat that is a few pounds heavy."

I believe this answered my questioned with factual details and set me at ease. If anyone has the same question, perhpas this will help.

for cat. numbers like weights etc. it is best to download something like the full texel ratings spreadsheet with all of the various boat measurements

18, 5.8, and 5.5 with screacher. The 18 is much closer in the pic, but see how they float...

Look at how they float????
Whoaaaaaa .... Hold on there, that's not a totally fair comparison!
I'll grant you some truth in that comparison, but there is a huge difference in the weight placement on the two Nacra's vs where the two fella's (Team Beefcake)are sitting on the Hobie. I'll grant you that the Nacra's ride differently, and are a bit more "sporty" in the way they feel, but the difference is not "all that".
If you REALLY want to compare the difference, take a look at the PHRF ratings.
Just my opinion, and in the interest of fairness and full disclosure, I am a die hard H-18 owner.

Stephen
H-18

Stephen,

The Guys on the TheMightyHobie18 don't look that much bigger to me. The skipper is way too far back though and the TheMightyHobie18 does have those heavy wings <img src="http://www.catsailor.com/forums/images/graemlins/grin.gif" alt="" />

Dave,
I should have added a Question Mark after the (Team Beefcake) comment. If you look at the two Nacra's, both the skippers and crews are up at the front crossbars, while both skipper and crew on the 18 are much closer to the rear crossbar.
Weight placement is a lot of how the boats present themselves in that picture. And, as you noted the H-18 does have the extra wing weight hanging behind the usual center of weight.

A little research on comparing the Portsmouth Ratings after my comment in my prior posting

DPN for the Hobie 18 & Hobie 18 Magnum is 71.4
DPN for a Nacra 5.8 is between 66.4 and 66.6 depending on whether it is classified as a NA or an Original.

Hmm, I would not have thought the difference was quite that much

Just as a comparison, the Hobie 20 rates a DPN Number of 65, while a Tiger rates a 62.4, as does the Nacra F-18

Granted, the weight is not trimmed great on the 18 in that pic, however the 18 crew is certainly not team beef. The 5.8 crew is not at the crossbeam either. The 5.5 crew is though, and it is interesting to note the difference between the 5.5 and the 5.8.

Here's a pic of that 18 in better weight trim. Still looks a little low...



Here's another 18. This one happens to be mine. I took the wings off for racing, I'm the beef, the crew not so much.



By the way - you really notice the difference when you try to get back on a 5.8 or 6.0 after a capsize..

And yes, I'm well aware of the PN number differences - lots of things contribute to that. But the truth is as stated before, the 18 has less freeboard and less bouyancy than the 5.8.

Two good pics deserve two more. 5.8 leading a SC-20:



Same light air night, H-18 with spin (me again...):