aus_cat16 wrote:
It surprises me that more people aren't interested in this discussion, but perhaps we're just splitting hairs.

I think you are correct. Seems like those who competitively race take every little bit of improvement to the extreme, seems like they'd be curious to know. I'm usually out with friends just going for top speed and having fun, not too important to me, but if the hulls need to be in a certain position, I'd like them set up that way. Here are some c/p's from another post with some info to think about.
mmiller wrote:
There is little parallel on a Hobie 16. I have a couple pylon measurements that might be used as a reference. This is from a factory demo some years ago.
78 1/2" center to center forward pylons at deck
77 1/4" center to center aft pylons at deck
Fast seems to be loose striker... this allows the hulls to splay out a bit which keeps the flat outer surface more perpendicular (in the water) as the weather hull comes above the water surface.
mmadge wrote:
I have been told distance between bow tang bolts 79" distance between rudder pins 83"
ftlauderdale16 wrote:
So after measuring my boat I got 79" at the tang bolts at the front and 84" between the rudder pins.
Had Fred check his boat which is fresh out of a box and he got the same measurements.
mmadge wrote:
Interesting is the measurements change quite a bit 1"+ ,between the boat when it is just sitting rigged and when you pull on jib halyard and sheet the main hard.Strapped in pulls the bows in.
Last year when I purchased my boat, the front crossbar had the most curve I had ever seen on a 16. I had to take it off, block it on both ends and literally jump on it to flatten it out. Once I did, I measured the bottom points of the hull at the bows and sterns and adjusted so they were equal. I never checked the pylon measurement to see if they matched the factory specs. I suspect that once the rig was tensioned the bows probably pulled in a bit. After taking my boat apart yet again to epoxy the frame, I flattened the front crossbar out a little more. My front/rear pylon measurements are about 3/4" wider than spec. I'm going with what Matt says about flatter being faster by splaying out the hulls more while I have the boat apart, but you are right, maybe just splitting hairs.