IOMICA Forum

I have found only one commercially available fin that lists its airfoil , Anders Wallin has one for sale: 0006( 6%t/c).
Sails ect lists 6, 6.5 and 7% for t/c, but no airfoil.
What other airfoils are being used commercially or just by home builders for fins and rudders?

Thanks, Rob

Andreas, really nice boat! I have used those sites alot for help in building my Triple Crown.

Does anyone have the full set of Triple Crown plans that they have finished with and would be willing to sent to me?

I am ready to start construction and I have the download version.

John, I E-mailed Robert Hobbs publicity-officer@mya-uk.org.uk and was told how much money to send( I sent cash ...

Lester wrote:

Robert H wrote:Why do my posts keep coming out on the first page?

Hi Robert

The IOM Forum is set up to show the most recent posts first, in reverse order.

Lester, I just figured that out
Its 1:30 in the morning and I think I have hade enough beer! Im talking to people who are not even there!

and once again

Same thing

Deleted for drunken stupidity

Gyula,How did you like using lime wood( is that the same as basswood)? I like the color difference. I will use it and red cedar on my next hull. What type of glue are you using? Alot of questions , I know!
Rob

Gyula, In your pictures the shear at the stern looks like its straight back from 9-10, instead of dropping down, or is it just my bad eyes? Did you use the flair in the bow or not? The hardest part of the whole hull (for me anyway) was the first few planks, dealing with the bow flair and the stern ...

Gyula, great looking hull. I really like the light and dark wood together. What wood did you use?
I am just finishing up mine. I used western red cedar.
Does anyone know what purpose the flair on the top of the first three sections serve. It looks good but is there a practical reason for it ...

Has anyone tried Redwood? It is cheap here in northern California, though the days of finding really clear heartwood with no knots is over. Its a lightweight wood that is very rot resistant and has a beautiful rich red color. I have some cabinets in my garage that are 50 year old redwood heartwood ...

Yes, thank you Soeren. This has been a very informative thread! I have printed it out for reference. I just hope I can do the methods justice. Soeren ,the Obechi is so light colored in the pictures I mistook it for balsa also. Rob

Lester and Ralph , thank you for the great information.
Ralph, the blade looks like the ticket, but the shaft on my saw is too large.
I am sure I can find a blade that will fit my saw, maybe not as thin, but close.
Ralph ,I like your idea of using the MDF and hand planer. I will make a wood jig ...

Barry ,Well I put my thinest, finest tooth blade on my table saw and tried cutting 1/8 strips. The thickness was consistant, but there were a few blade marks ,not perfect but usable. The wast is another matter, about 50%. I will go pick a band saw. I can use it for many other projects too.
Rob

Hi barry and thanks. I have a large lumber yard about 5 miles from me, and yes they let you pick through the wood there too.(I love that) I will check and see what woods they have for planking. You strip your own wood on a table saw? How does it come out cutting such thin strips(3mm)?do you have to ...

I looked up eastern and western red cedar, eastern is a juniper not a cedar no wonder they look and smell so different!
Rob

Sounds like you know your trees Charles. I wonder if they have simular working properties. I have used both eastern and western cedar in finsh carpentry. Eastern is more colorful and stronger smelling than western, but western is much cheaper and easier to get where I live. I have never seen either ...

Thanks again Roy , I guess there is nothing left but to find some cedar.
Rob

Thanks Roy, Do people who use harder woods than basla( pine, cedar, basswood, mohogany) usually cut their wood strips to size or buy them that way? I love the look of red cedar and will probably try it next. I noticed that when planking with balsa, if you get CA( instant glue) on the outside of the ...

Thanks Charles, That does look like a good method. I did not see any text with the photos. I wonder what thickness mohogany he uses. I will try to contact him.
Rob

I have built a few hulls with balsa, 2-US1M's and 1-IOM. The balsa worked fine, and was light, but I would like to use a wood that is more durable/ prettier than balsa.
What wood do others use for planking? What are some of the good and and bad points of those woods and are there any special ...

Thanks Steve, Half the fun for me is building my own parts and the other half of course, is trying them out( sailing). I am not going to build any thing to sell I just want to learn the best way to build my own fins.
Can you give me any more info on your methods of building and using a preasure ...

I am new to R/C sailing, and am just learning the ins and outs of boat building. I have built a coulpe of US1 meter fins. Both were built with balsa cores, uni-directional carbon, bidirectional 5.7 oz carbon on the bias and then 1.5 oz glass cloth. I didn't vacuum bag either one, but they turned out ...