News:

Howdy, Com-Pac'ers!
Hope you'll find the Forum to be both a good resource and
a place to make sailing friends.
Jump on in and have fun, folks! :)
- CaptK, Crewdog Barque, and your friendly CPYOA Moderators

Main Menu

New Naca 0014 Foil Rudder for our Com Pac 19

Started by DOUG142, September 11, 2010, 09:08:53 AM

Previous topic - Next topic

Shawn

On the UniFoil rudders I don't think there is any stainless in them at all.

The stainless was in the replacement rudders that fit the stock rudder head.



The rudder at the stock rudder head is much narrower so they needed the stainless for strength in there. On the Unifoil the rudder is much thicker at the rudder head.

Shawn

Salty19

Hi Shawn,

Sorry if my post was misleading...yep the one in my pics is solid HDPE with zero core. The stainless referred to is the mounting assembly of IDA's Kick Up Foil Rudder Assembly only. 

I put this on before sailing the first time on the 19 based on the excellent results from the 16. Sure makes these boats point higher, hold their line and of course power steering makes long sails a "breeze".




"Island Time" 1998 Com-pac 19XL # 603

Salty19

Hey Doug-  Very nice work, as usual!

Can I make a suggestion on the color?    Match up the rudder with a sunbrella color that you like and that compliments the boat. 

Then when you do get around to making cushions and other covers it will all match up nicely and coordinate.   Also white always looks good and will look as if it belongs there from the factory (to a non-trained eye).  If you paint a base coat of darker color it will be easy to see where you ned to touch it up in the future.  Also white reflects heat and therefore perhaps will cause less heat damage to the foam/epoxy (if that's even possible in WI) over time.

If you're not handy with the sewing machine and want to make some covers (tiller, winch, lifeline, rudder etc) , give me a shout...I can probably make them for you since you made the furler base for me.  Just say the word!

P.S. Have you sailed her yet?

"Island Time" 1998 Com-pac 19XL # 603

DOUG142

HI Mike,
Good to hear from you.  Been very busy with work and everything else around here.  We are at a point to take the boat out for the first time.  This past Sunday was suppose to be that date.  However, the Wisconsin forcast did it again.  Not good weather at all. 

Thanks for the kind words about the rudder.  This one is my first foam and glass one.  I ran the foam and glass a little to high up and ended up cutting an inch of the foil off the top end.  I couldn't pull the rudder up to the UP position!

Linda is very good with sewing and has all the material for the cushion re-do.  Over Winter project I do believe.  Thanks for the offer.

If we get one weekend day that isn't to cold, we have cold weather gear, and not raining,  we are going sailing.  Our first outing will be Lake Kegonsa, Wisconsin.
It is just up the road a bit.

Truck is all fixed.  We are READY!

Doug and Linda

Sweet Dreams, CP-19

CP-16 SUMMER ESCAPE, YEAR 1983(SOLD), 1975 SCORPION (fOR sALE), 1983 COM-PAC 19 SWEET DREAMS
http://s895.photobucket.com/albums/ac156/DOUGN6885/SWEET%20DREAMS%20%20COMPAC%2019/

Greene

Doug,
Where do you put in on Lake Kegonsa?  Decent ramp?  We haven't sailed that lake yet and we'd like to come down and give it a try.

Mike and Brenda
'84 CP-16 (sold) - '88 CP-19II (sold) - '88 Com-Pac 23/3 (sold)
http://s613.photobucket.com/albums/tt211/greene2108/


"I'm just one bad decision away from a really good time."

http://wrinklesinoursails.blogspot.com

DOUG142

Hi guys,
We haven't gotten a chance to sail our 19 footer yet!!!!

We put in at Lake Kegonsa at the state park there.  Have the yearly park pass for state parks in Wisconsin so don't pay launch fee or daily fee.
Nice ramp, nice park, they even have a dock over by the picnic area.
I think I still have your phone number, can call when we plan on going?
Lake Kegonsa also has a website you could check out.
Been sailing there three times when we had the 16. 

Let us know.   Hope all is well with you.
Doug and Linda
Sweet Dreams, CP-19, Year 1983
CP-16 SUMMER ESCAPE, YEAR 1983(SOLD), 1975 SCORPION (fOR sALE), 1983 COM-PAC 19 SWEET DREAMS
http://s895.photobucket.com/albums/ac156/DOUGN6885/SWEET%20DREAMS%20%20COMPAC%2019/

Bob Condon

Salty19

How this is the thickest portion of the rudder you show. I am building a naca00014 profile
and am guessing that the thickest portion is about 1.5 inches... any change at either an estimate
or measuring it.

I am using a NC machine to cut the material but will play with foam as a prototype.

Many thanks!

Bob Condon
Bob Condon
C19 Hull 226

Salty19

Bob--I'm not sure what you're asking.   I didn't make my own, I slapped on IDA's version so I don't have any figures or likewise from creating one.

But I do have an actual (not scale) shape of the  NACA0012 template for the 19 if you would like one.  I can measure it later if that's what you need.
"Island Time" 1998 Com-pac 19XL # 603

Bob Condon

Salty19,

Sorry for not being clear.

What I am asking is for a measurement of  the thickest part on the NACA0012 section of the rudder (near the leading edge)
I am assuming it is around 1.5 inches. This is  an input on my spreadsheet, but I can cut any thickness on the machine.

The standard compac rudder is 12 " front to back and about 26" is in the water and the entire plate is 1/4" thick.

Many thanks
Bob Condon

Bob Condon
C19 Hull 226

Salty19

Bob--Sure thing.  I'll check tonight with a micrometer.
"Island Time" 1998 Com-pac 19XL # 603

Salty19

Bob, the max width of the naca0012 foil on my CP19 is 1 1/4".

Hope that helps,
"Island Time" 1998 Com-pac 19XL # 603

Bob Condon

Bob Condon
C19 Hull 226

David

Folks,

If one has to start from scratch with no on hand materials(having simple tools), how much do you think it would cost to build the 0014 as discussed in this post.  Forget man hours, because that is where the enjoyment comes in after a few frustrations.  Just curious what the difference in price would be between a factory one and home made personal pride one.

David

Bob Condon

ANy answer is true.

Grab a pocket knife and whittle for the rest of your life. -or- spend $24K on a N/C based machine
or anything in between.

I bet to realistically build a rudder that would perform, you would need to spend $700 in tools to get the level of precision
you would want... For accuracy, I would think that a good router would be needed and make profile "ribs" to be able to get the
correct shape using a router that you would run between two profile ribs

bob
Bob Condon
C19 Hull 226

newt

Bob- I hear of good results from any foil from 0010 to 0014. I think I could make a rudder with that much leeway in my garage on a sanding machine. IMHO.