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Aldebaran 6 (sail# TBA)

Posted By: Phillip

Aldebaran 6 (sail# TBA) - 10/01/13 02:09 PM

A thread for those interested in timber mosquito.
Some photos are in Photobucket but I'll try to give some further info via this forum.
Hulls, transom and centre deck, 4.1mm ply. Forward and rear decks, 3.5 ply. Internal frames and centre board cases, 3.1 ply. All ply started at 4.1mm, reduced to numbers stated in a thickness/panel planer.
Hulls have been constructed internally similarly to Aldebaran 5 (1765), but, rocker moved aft, fuller in the bow, narrowed the decks, fatter and flatter in the aft section.
Launch date October 13, Adelaide SC opening day, but currently 1 week behind schedule.
That's enough for now, willing to answer questions.
Now see if I can upload some photos.
[Linked Image]
[img:left]http://s51.photobucket.com/user/vmca/media/misc/P1030273_zps7b389dd3.jpg.html?sort=4&o=8[/img]
One worked but second link will take you to Photobucket. Shall practice the photo process or get further coaching.
Posted By: Sixth Element

Re: Aldebaran 6 (sail# TBA) - 10/01/13 08:51 PM

hi Phillip, boat is looking great. once again well done on a good job. will have to try and get down to asc opening to have a look.

Posted By: Matt_Stone

Re: Aldebaran 6 (sail# TBA) - 10/01/13 11:25 PM

Hi Phillip,
looking good!
what does the Name Aldebaran mean?
Posted By: No Turbulence

Re: Aldebaran 6 (sail# TBA) - 10/02/13 12:54 AM

Hi Phillip,

Well done, looks good. Hope you keep us informed about how it Aldebaran 5

Ross
No Turbulence 1
Posted By: Simon C

Re: Aldebaran 6 (sail# TBA) - 10/02/13 01:57 AM

Wow! looks beautiful smile
Posted By: No Turbulence

Re: Aldebaran 6 (sail# TBA) - 10/02/13 05:37 AM

As I tried to say earlier, I hope you keep us informed about how it performs compaired to Alderbaran 5.

Ross
Posted By: Damo

Re: Aldebaran 6 (sail# TBA) - 10/02/13 11:13 AM

Awesome
looks grait Philip!!
Posted By: Pirate

Re: Aldebaran 6 (sail# TBA) - 10/02/13 11:28 AM

Originally Posted by Phillip
....or get further coaching......


just above the top left of the photo you want to link are several "buttons"
facebook/twitter/google+ etc ect....
the last one looks like a chain link.... left click it ..... a drop down window will appear laugh

copy the IMAGE CODES(for forums and boards)

Paste that directly to the reply to post window you have when your doing a post....

[Linked Image]

it will produce a smaller photo in your thread (as above) but allows a faster thread upload for those viewing the thread,
should they want to see a larger version then they simply have to left click on the photo and that will take them automatically to the site and the larger version of the photo.

Once you are ready to 'submit' the thread click the PreviewPost button first and view the post for a check on how it will look

The main advantages of the smaller pic are .....
it keeps the bandwidth down so this keeps the forum/board fast in its loading of the pages....
it stops the expanded window look with typing going off into the righthand side never never region and having to use the bottom slide to "see" all of the post because the typing field now runs the full width of the photo.....
and you can monitor how many people are actually viewing your stuff, from this you learn what people generally want to see more of
wink

Posted By: Phillip

Re: Aldebaran 6 (sail# TBA) - 10/04/13 03:51 AM

Hi Guys, thanks for your interest and compliments.
Peter, ASC open day is a wish, shall contact you if I don't make it.
Matt, Aldebaran is the name of a star, the brightest (magnitude 1) in the constellation Taurus, The Bull. It is clearly visible in the summer sky, west of the Big Dipper, (Orion the Hunter). Can show you at the nationals as the viewing in the country away from city-light pollution is awesome.
Ross, if I let on how much better A6 is compared to A5 no one will won't to buy Aldebaran 5. But just so I don't create any turbulence I'll keep you informed. smile
Simon & Damo, thanks.
Damo, How's that new boat coming along. Got the timber decks on yet?
Pirate, thanks for the coaching, shall post more photos when time is free.
Posted By: Damo

Re: Aldebaran 6 (sail# TBA) - 10/04/13 09:21 AM

Philip,
The timber decks are on and looks grait, I see why you love timber so much!! The hulls will be painted by the end of next week hopfully. I changed the hull colour but it will high light the timber. I have sent you a pm also.
Cheers
Damo
Posted By: Phillip

Re: Aldebaran 6 (sail# TBA) - 10/06/13 12:48 PM

Centre boards fitted earlier.
https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-prn2/1385137_428885740551086_1792379803_n.jpg

https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-ash3/r270/599380_428885967217730_749998740_n.jpg

Decks later and today
https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-prn1/540149_429605450479115_102850836_n.jpg

The assistant
https://fbcdn-sphotos-b-a.akamaihd.net/hphotos-ak-ash4/1375838_429605823812411_244832281_n.jpg

Just need to paint it, white seems to popular:)
PP
Posted By: Phillip

Re: Aldebaran 6 (sail# TBA) - 10/07/13 03:02 PM

Aldebaran 6 is all rubbed back and ready for the paint, maybe Wednesday.
I have made an album in Photobucket.
http://s840.photobucket.com/user/FibreW/library/?sort=9&page=1
smile
PP
Posted By: Phillip

Re: Aldebaran 6 (sail# TBA) - 10/09/13 11:52 AM

Hi swarm, planned to paint today but Adelaide had strong wind with dust and 34c, so postponed it. Also was not satisfied with the final rub back of the resin so applied another layer today instead.
[Linked Image]
What a pleasure to work with warm, thin resin that spread and flattened out.
[Linked Image]
Tomorrow back to wet sanding and paint preparation. So no launch this weekend. Hard work being a perfectionist.
smile
PP
Ps. Thanks Pirate Kingy, photos inserted!
Posted By: No Turbulence

Re: Aldebaran 6 (sail# TBA) - 10/23/13 11:43 PM

Hi Phillip,

Has the boat made the water yet?

Ross

No Turbulence
1774
Posted By: Phillip

Re: Aldebaran 6 (sail# TBA) - 10/26/13 11:13 AM

Hi all, and responding to Ross,
Wet Aldebaran VI (1827) today. Completed her first race, 12-15 knots, comfortable trapezing, and over-powered at times. Preoccupied for 2 laps finding the sweet spot going to windward in sloppy conditions. Kept Atreus honest for first part until they began to 2 trap. Very rusty for first outing of the season so very clumsy on the boat. But also unbalanced tacking and gybing as A6 is quicker in the turns. Hull shape seems steadier on a shy reach whilst trapping off the rear beam. All in all, everything worked and no water in the hulls after. So keen to repeat the day and learn to sail the new hulls, fast!
Measure tomorrow, expect to be +55kg because the hull skin ply is thicker than A5's. Shall broadcast info for those interested.
smile
PP
Posted By: Anonymous

Re: Aldebaran 6 (sail# TBA) - 10/26/13 10:27 PM

Congratulations on getting her wet. Would be hard to get the feel first race of the season, I know how long it takes me to get comfortable after Winter break on a boat that I knew cry well.

Enjoy the learning curve, quicker tacking and gybing is great, once you get used to it. cool
Posted By: Matt_Stone

Re: Aldebaran 6 (sail# TBA) - 10/28/13 04:06 AM

Just curious, how much rocker are we allowed? what happens if you go too much rocker?
Posted By: Anonymous

Re: Aldebaran 6 (sail# TBA) - 10/28/13 09:16 AM

My understanding is there is no measurement as such, it's just building within the Building restrictions and fitting within the templates afterwards, means that there is a maximum amount that you can have, which is partly controlled by where it's placed also (forward or back). confused

Hopefully guy's like Phillip that have built boats can explain it better.
Posted By: Phillip

Re: Aldebaran 6 (sail# TBA) - 10/28/13 11:36 AM

Hi Guys, Rocker can be as much or as little as you like/design into the hull(within the restrictions). Greater rocker gives you greater load bearing shape, lifting bow and stern out of the water. Greater rocker enables quick turns, tacks, gybes and mark roundings. BUT, more rocker can cause excessive pitching motion (hobbie-horsing) in sloppy seas. Also can reduce the water-line length and therefore potential speed. Where the maximum rocker draft is located along the hull length will determine hull response to wave action; forward, results in excessive bow lift when punching into a wave, a slowing action. Gives superior down wave/surfing capabilities, but you need to slide forward, even onto the fore deck. Rocker aft gives greater crew support especially for 2 up, the trade off is having sufficient buoyancy in the bows on a reach/off wind. B scary sliding down the face of 2+ metre waves and watching the bows bury to the main beam, and you are both already sitting on the rear beam. So how much rocker and where to place it is a design challenge. There is some latitude with the mossie BRR, especially if building a plug for glass, but the tortured ply places further restrictions because of the nature of the medium, taking numbers to excess and the ply will explode, well split anyway. Still orifice wincing! crazy
Aldebaran 6 split in 3 places, twice under the forward chain plate at the keel, right next to the edge of the FG tape, (I was pushing the 4mm ply to the limit of the template curvature/restrictions). The 3rd split when I dropped the 8 metre tape measure into the hull when it was tortured but not framed, cry
See following post for 1st time sailing report and measurement day.
smile PP
Posted By: Phillip

Re: Aldebaran 6 (sail# TBA) - 10/28/13 11:51 AM

Hi Guys, 1st impressions sailing. Aldebaran 6 hulls are some what different to A5. Rocker location is different, hull cross sections at the 3 measurement points (where the hull measurement templates are placed) are different. Tiller feel had greater weather helm and I am still investigating why. So as Gary suggests it will take a while before I am confident I am sailing A6 to his full potential. I felt quicker but was inconsistent.
Measurement: Thanks to Peter D in making the time Sunday. A6 measures, I was confident he would. I predicted he would be over minimum weight as the ply was thicker/heavier than A5's (bought 18 years ago) and I have made mention of this in the opening post. Numbers? 2kg heavier than I predicted :o, I'll just have to lose 4kg. So work it out laugh
Posted By: Pirate

Re: Aldebaran 6 (sail# TBA) - 10/28/13 08:34 PM

Originally Posted by Phillip
..... Rocker can be as much or as little as you like/design into the hull(within the restrictions).....


The "rocker" in a mozzie has always been a mystery to me and likely to many others too I'd guess .... most I've asked about it have usually shrugged their shoulders and had that blank look... confused

Jurassic Karp 1740 (as stated from its previous owner) has minimal rocker in it which can make it a bit slow in light conditions, however with this comes extra stability and less drag at speed such that this is probably one of the outright fastest hulls around and as such is well suited to the spinnaker with this extra stability. In 12 kts + this boat is as fast as any of the newer boats depending upon the guy on the tiller.

That's all well and good on paper, but how do you check what rocker you actually have ???

I've just bought another mozzie, because I needed another headache crazy and whilst it too will need some long overdue TLC, it will get on the water well before the Karp will... 2~3 weeks and we should be sailing it..... Karp is still 2~3 months away at a push....

so how do I check the rocker on the new toy ???

What do I look for .... measurements at a given point.... template comparisions ... or is this an experienced builder thing where you slip on the rubber glove and say relax and I'll see what you've got in there

shocked

wink Kingy
Posted By: Phillip

Re: Aldebaran 6 (sail# TBA) - 11/22/13 11:22 AM

After much consideration; place the hull(s) on a flat surface/floor. Measure 613mm from the bow and trace a line down to the keel, 90 degrees to the sheer line. Mark that point on the keel. You now have two points on the keel that are the same on every legal mossie, the 613 point and the transom. 'Rock' the boat until the 613 mark and the transom are equal in vertical measurement from the floor. Record that measurement. Drop a plumb from the bow and transom. Measure and record where the keel is in contact with the floor, from bow and stern plumbs. You now have a maximum depth of rocker and where that maximum depth is along the keel. It can be used as a comparison with other like measured hulls. Would be interesting!
PP
1827
Ps: I guess you could use a string line as the flat surface but several steady hands would be required to stretch it and hold it steady. Therefore rocker could be measured with boat on trailer, if there is clear access along the keel. ??
Posted By: Phillip

Re: Aldebaran 6 (sail# TBA) - 08/27/14 01:45 PM

The photographs of Aldebaran VI's construction (in photobucket) have all been labelled. It may help interested parties understand the internal structures of a timber mozzie. Happy viewing.

http://s840.photobucket.com/

Also some joyful memories of Aldebaran V. He's for sale!

http://www.theracingcat.com/index.php?page=boats-for-sale
Posted By: Matthew Dawson

Re: Aldebaran 6 (sail# TBA) - 08/28/14 08:31 AM

I can't get the photobucket link to work. I have signed in to photobucket ... I keep just ending up at my PB home page ... any ideas?
Posted By: Phillip

Re: Aldebaran 6 (sail# TBA) - 08/28/14 10:36 AM

It did not copy n paste correctly.

http://s840.photobucket.com/user/FibreW/library/?sort=9&page=1
Posted By: Matthew Dawson

Re: Aldebaran 6 (sail# TBA) - 08/28/14 11:17 AM

Beautiful work Phillip
Posted By: Phillip

Re: Aldebaran 6 (sail# TBA) - 09/14/15 07:53 AM

Aldebaran VI is up for a 'repaint'. Starts with hand sanding. Dry sand with 120 grit. Slow but ensures removal of the surface but not breaking through the epoxy. Do not want to create bare wood. Will have a few 'running' repairs to perfect when this first process is complete. (Have been using spray enamel on these repairs and this product will also need complete removal before respraying with 2 pack.) The 2 pack thinners finds the enamel very quickly, it dissolves it!
[Linked Image]
Sanded for 2 hours and all 4 bows sanded to the main beam. Rear half will be quicker as the curved sections are easier to sand. Then its onto finer grits, followed by wet sanding. Will finish with ~600 grit, then spraying.
Posted By: Rebel without a Clew

Re: Aldebaran 6 (sail# TBA) - 09/14/15 12:06 PM

Phil you rascal! Ha! I knew you'd been quiet! With a timber boat you get more than 1 hobby. Did A6 really need it or did you just get bored? Winter thing? By coincidence I am at a similar stage with mine! Cheers, Roy.
Posted By: Phillip

Re: Aldebaran 6 (sail# TBA) - 09/15/15 12:38 PM

A6 has had a few repairs, mostly splits, that needed attention. Thought it prudent to repair these and then resurface the whole boat to maintain its 'French Polish' finish. LOL.
[Linked Image]

[Linked Image]
Quiet because I've been in Qld during August-September, twice. Also been waiting for Adelaide's weather to warm up so I can work in the carport (no shed like some other lucky owners).
[Linked Image]
Carbon Credit, Hamilton Island (before it 'lost' a bow)
Posted By: Phillip

Re: Aldebaran 6 (sail# TBA) - 09/28/15 04:34 AM

Nice and shiny again. Spent a 'few' hours hand sanding, 120 dry, 240 dry, 400 wet. This also included repairs and epoxy on the bare spots. Leaving it for 3 days to fully harden.
[Linked Image]
Now to replace fittings and sailing gear. One week to season openings!
[Linked Image]
Still designing the long-awaited sign writing. Something distinctive, in red & black again. And to disguise the plain timber grain on the bow sections, see photo!
Posted By: Pirate

Re: Aldebaran 6 (sail# TBA) - 09/28/15 08:40 AM

Originally Posted by Phillip
A6 has had a few repairs, mostly splits, that needed attention. Thought it prudent to repair these and then resurface the whole boat to maintain its 'French Polish' finish. LOL.
[Linked Image]



odd split eek

I take it only one of the veneers has separated (from the pic atleast)

I've only seen that sort of splitting in lower quality veneers and in ply that's been left directly in sunlight in the storage store...... Where I get my ply from they have a 6mm sheet that's "sacrificed" to protect the ply sheets underneath, its full of fracture splits like the one you've pictured, the pack is stored under a laserlite sheet in the roof and the sunlight hits the rack around 11:00am through to late arvo baking the ply sheets to destruction. I always pull half a dozen odd sheets off before taking 'my sheets'

wink
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