I’m wanting to make a balsa sando version of the original MR twin, and I am hoping someone here could help me out with some measurements. I’m betting that there is at least one Swaylocks member who owns one of these. I know its kind of a pain in the butt to get out the carpenter’s square and take width measurments every six inches, but it would be a huge help if someone could since I don’t have one at my disposal to measure myself.
Thanks!
The latest tracks has an add for mr the 78 twin 80 twin and super twin are shown.
6’2" 21"(i think it was) 3 1/4
4 3/4 nose 2 1/4 tail
I have one of the MR twins made by G&S, back in '79 or '80. I think it is a 6’0". What do you need? I can take dimensions or send you a template by mail. The bottom contours are pretty complex. I think there is a sort of fluted concave under the side wings. Not sure how to measure that, but I’ll give it a shot.
http://www.surfresearch.com.au/00000040.html
check out this site shwuz it has stacks of MR’s with detailed dimensions.
I have one of the MR twins made by G&S, back in '79 or '80. I think it is a 6’0". What do you need? I can take dimensions or send you a template by mail. The bottom contours are pretty complex. I think there is a sort of fluted concave under the side wings. Not sure how to measure that, but I’ll give it a shot.
If it looks like one of these on top, then yes, I would love a set of dimensions…
Since I’ll be using my own rocker, bottom, fins, rails, etc… The easiest thing would be just to PM me a set of offset measurements from the stringer, either every 3 or 6 inches from the nose. I don’t expect to be able to replicate a Mark Richards, but I love the outline and think it would be a hell of a place to start.
I really appreciate the help, and if there is anything I can do in return just let me know!
Hi Jarrod , I posted them at surfer forum and here last year.
…it’s “search” time mate !
Hey Nick,
Good to hear from you. Built any boards since the fish? Still have the templates you mailed me. Mike
Outline taken from your pic.
Scaled to 183cm (6’)
Measurements every 15.25cm (6")
BTW: 1"=2.54
I hope it helps.
…Neira; How do you do that?..
Thanks
Brilliant, neira! Thanks so much!
Now, again, how the hell did you do that?!
Any time I’ve tried to take a tilted board picture and put it on a perfectly vertical axis, it screws the outline all up… Then to scale it and measure it so accurately…
I’m simply flabbergasted.
Great work!
Shwuz,
Sorry for the delay. My dimensions are very close to Neira’s. This is from the nose back. The board is 6’0":
3" 2.69"
6" 4.25"
12" 7.0"
18" 8.5"
24" 9.5"
30" 9.88"
36" 9.94"
42" 9.69"
48" 9.06"
54" 8.25"
60" 7.25"
66" 5.25"
69" 4.25"
The swallow has the tips 5.25" apart and 1.62" deep. The wings are 6.75" up and .5" deep. The trailing edge of the fins is 9.75" up, set 1.75" in from the rail. The leading edge is toed in 25". The fins have a 6" base and are 6" deep.
The bottom has a deep V from nose to tail (I never noticed that before), going to a double concave through the fins.
Rooster,
My one and only fish was not a success, at least for me. It seems corky and hard to turn. Basically, I lean over the rail, then fall on my face! I’m used to stomping on the tail to turn my heavy single fins, so learning to “steer” with my front foot is tough. I don’t think the 9" keel fins are helping matters. I am going to grind them off and replace with some 7" keels I made, to see if that helps.
Excellent, Nick! Thanks so much for the detailed dims, that should be more than adequate to make a good template from!
Ok, now back to my regularly scheduled protracted planning phase! Look for this board sometime in feb.
Wow, Neira, can you do that with rocker too?
Do you mean… like that??
It’s simply AUTOCAD.
Just:
-create a NEW file
-then you must import the jpeg you want to extract the rocker or outline from by INSERT/BACKGROUND IMAGE. Don’t care about scale and rotation, you’ll do it later.
-then DRAW a red line along the stringer, from nose to tail
-then ROTATE both elements (jpg and red line) till red line is true vertical
-then SCALE both elements till red line is as long as you need (6’, 7’, 9’3"…)
-then DRAW a red POLYLINE along the outline and/or the rocker, only one side. When finished, MODIFY the polyline into a SPLINE
-then COPY this SPLINE away from the pìcture and make all the measurements you want.
You need to be just introduced in AUTOCAD. It’s not an expert issue.
Post here the pic you need to extract the aoutline and rocker. I can do it for you.
Well, yeah, like that. Wow. As for “simple”, it looks to be, if you know AutoCadd. I have it, but haven’t used it. Now I am motivated to learn. thx for the tip.