You really have all my consideration for having keep this pace of generous tips and pictures up to this point. This thread is a great gift for all of us starting in this hobby. Your patience is also an inspiration.
I have found on the internet (www.nonsolovele.com/Tecniche.shtml) your Come Fare le Vele (or Forma per vele) booklets on sail making. They are unfortunately in Italian but they are well illustrated and I think I have understand everything that I need to start making sail. Except for one thing. You show in booklet #3 the JPM and the RB method of assembly. The first one use the edge of the block as an guide, as you did in picture #123-666, while the other one use the highest point of the tool.
A simple Google translation let me believe that you didn’t know at that time which one was the better. Have you reach a conclusion since then? Or in other words, does the JPM method, which seems a lot simpler, is good enough?
bonjour Sylvain,
le deux methodes sont equivalentes. Both methods are equivalents and all depend on the degree of confidence you have.
This is true for many thinks when you talk about manual work.
Of course on the technical point of view, the profile you get may be slightly different, how much, I never managed to measure it.
When at the pictures in my booklet is hard to see the differences and the program AccuMeasure do not help very much to evaluate the two construction methods, see: http://www.ukhalsey.com/accumeasuredl.asp
cheers
ClaudioD
The Main is done ! with the found mylar of 70g/m².
Is not bad but not yet perfect as I like, probably I need some training again for large sails. The last sails I made was 3 years ago for a couple of RG65.
ClaudioD
Hi Claudio, finally managed to find internet connection in the middle of Asia (not easy) really pleased to see your progress congratulations & looking forward to our test sailing session when I get back.
I was thinking about your trip ! perfect then, I hope me too !
Waiting for fresh sails mylar tissue for the jib and eventually a new main …it appear I lost training in making sails , heheh !
Actually a little busy with self made, as usual, of bit and pieces for the mast .
working around the Mast - actual weight 143g include the Main Boom & Wang, the Spreaders and Crane, without cables.
The Main is 42g and assume that the Jib should not be more then 18g.
20g left for cables and hocks and turnbuckles…
ClaudioD
just back from our hols in the home land, France where we finally found that yellow roundy shape thingy called Sun if i’m remember cos we don’t see much of it here in Ireland !!! ;)
Unlike you Claudio I’m from Bretagne so from the little I read so far we surly didn’t get the heat you got there… though we did it the 30’s a few days we also got refreshed with some showers at times … but hey we’re not made of sugar so we didn’t melt… it was great to feel a bit of heat though… Got fishing with the son and even put his MMR on the water for the first time… great little boat they are… very quick to react and heel at the smallest puff of wind though… Our son was delighted… great !!!
Anyway… can’t wait to read all I missed whilst I was away. No doubt all good stuff I bet.
that’s odd for this time of year in the south of France ! the weather this year has been rather odd here too with a fantastic hot week in late March then consistently below average temperature since…
Yeah the Hydroptere is simply amazing and they’ve been at it for nearly 20 years now and after breaking quite a few speed records but now they’re after trans-atlantic ones… interesting to keep an eye on how they’re doing.
Looking at the main I can obviously see where you’ve broad seamed the panels and on those ‘lines’ I think I can make out some small vertical lines. Are these the end points of the battens or are they not fitted yet? Also on the main there are a pair of black parallel diagonal lines running from luff to leach - are these additional battens to help support the leach or do they serve some other esoteric purpose?
In the meantime, I’m waiting, somewhat nervously, to see pictures/film of 123 in action. Bearing that in mind, if Alan does indeed make it to the Cote D’Azure, I’d be most grateful if you could remind him of the purpose of his visit: Definitely not a holiday!! There are far two many followers of this build log wanting full descriptive analysis of 123’s performance with particular emphasis on comparative performance with regards to AC120’s and, I suppose, although somewhat to a lesser degree, the the current top IOM designs. So he obviously won’t be in much of a position to top up his suntan!!
So anyway, I guess the context of what I’m saying is that I sincerely hope that the forthcoming waterborne activities come sooner rather than later (weather permitted, of course - what would you consider to be an ideal wind strength for the initial trials?).
Regards,
Row
PS: Should have some developments to report on ‘Enterprise’ soon - she’s made it down from the loft above the garage and in my spare moments I’m coming up with methods to fill/seal the aft face of the keel. When I get there I’ll be posting all relevant info etc on my build log.
Thanks for the reminder Row, my current schedule has me arriving back home (Germany) 22nd Sept, no doubt jet-lagged, kiss the wife, kids & dog, change my clothes and then drive overnight to Ravenna (Italy) AC 120 championship (23rd/24th) then following drive to Nice (France) for testing session with Claudio, if 123 will be ready ? and then back home again. Planning on having 2 x AC 120’s, latest model IOM & maybe Sprinta if space permits, maybe Claudio will have M-Class available as well for complete performance comparsion.
Believe me I will not be driving 2,500 kms (round trip) to top up my tan mate :smile_lol … if you like to join me & share driving would be really welcome & appeciated
Hi Row,
Happy to ear that you are back to Enterprise work.
The diagonal lines are battens supporting the leech made out of XRay radiographic film and kept in place with insignia adhesive (Dacron).
Still few details and 123 will be ready to meet the water !
Hoping for good results, battery under charge !
Cheers
Claudio
Love to join you but I’ve only just started driving again (after surgery back in may) and my car limit at the moment is 25 minutes max, so pretty useless to share driving with and overall a terrible travelling companion!! Also, it’s the chief financial controllers birthday later this month…
Hi Row, what pity would be great to have some one to chin-wag with on such long drive, all the best in your recovery and best wishes for the CFO’s birthday.
Hi Alan,
you wrote above that you will drive to Ravenna the 23rd and 24th of September.
According to what written on the IACC 120 site, the Italian championship is held on Saturday 22 and Sunday 23rd !
I suppose that on Saturday there will held fleet racing for selecting the 8 finalists for Sunday 23rd.
Better check here : http://iacc120cup.altervista.org/Main0.html
Cheers
ClaudioD
My impression for the moment is that the verifications made about “hull balance” are very very good. If the centering will be OK, then, no efforts are expected with the Rudder, thus less drag !!
Having said that, so far I concentrated my effort to the design of the immersed volumes.
The comparatives test should confirm the expectations.
After the learn lesson about bowed deck, my mind is already traveling toward 123 bis !! more correctly ‘Tris’
The new design approach is dealing with the ‘pitching moments’ and ‘damping’.
Too often we see models jumping up and down according to the wavelet sequences.
The mast is continuously swinging back/forward and the sails get stalled all the times, producing large drag and reducing the speed to ‘zero’…
Don’t tell me I’m crazy ! but new 1.2.3. MarkII plans are almost ready.
sure can’t wait for the 123 to get wet and see how she performs against other proven boats. My view ahead of the test is that, though I really like the IOM and race them competitively, I don’t really see the IOM, latest design or not being a threat to the 123. By the way what IOM boat are you bringing down ? Fastest at the moment is Brad Gibson Britpop (ok in his hand anything will go fast) but it is a proven fast IOM.
I see more of a match against a well tuned up AC120 and marblehead. Not sure which one would be fastest. what about a 10R ?
Are you gonna take a video of the maiden voyage and test ?
Cheers, Gilbert
For now or rather this afternoon I’m hoping to go to Dun Loaghaire where the MOD70 have arrived with a classic close finish in dying winds with only 31secs between the 2 top boat and just a further 30 secs to the 3rd boat… I’ll post some pics if people are interested. Pitty I don’t have my 2m tri ready yet - still on the drawing board
