Vee, How sharp ??

[Simon.O.]

How important is the sharpnes of the Vee on the keel of a DV.
I have one in for overhaul at the moment and want to know if the edge of the V is critical.
I know that rear edges and indeed spray rails etc need sharp exit edges, but what about the keel.
I figure that some of the GRP hulls would have a fairly smooth edge when pulled from the mould and may need a touch up later. Is it important, like real important.

Sport boat about 29" 700SC or L size BL on 4S, for fun.

Your thoughts and opinions please.

[ED66677]

Simon
I don't think it is as important as the rest you mentionned, but think about the ride pad! the last 1 or 2" (I have to measure) of the keel, just before the transom has to be flat!... at least that's the way it is on my 29" DF copy!

[Simon.O.]

Simon
I don't think it is as important as the rest you mentionned, but think about the ride pad! the last 1 or 2" (I have to measure) of the keel, just before the transom has to be flat!... at least that's the way it is on my 29" DF copy!

Funny you mention that hull.
I am keen to hear about the flat section. Width and length (appoximate) please.

On another note. ED you should see what the little Canard does with a 8S BL on 2S lipo with a 432 metal prop. It is now dusted off and come to the pond on most trips.

[ED66677]

I'll give you the dimension later... this evening

On another note. ED you should see what the little Canard does with a 8S BL on 2S lipo with a 432 metal prop. It is now dusted off and come to the pond on most trips.

you mean a 8 turns Small can like a Feigao 540 08S?
Any vids? I don't remember you posted any did you? we want to see it in action!!!

[Simon.O.]

I'll give you the dimension later... this evening

you mean a 8 turns Small can like a Feigao 540 08S?
Any vids? I don't remember you posted any did you? we want to see it in action!!!

Feigao 540 08S !! A little powerhouse are those motors.
No vids, yet or for a while.
Now go and get me a few dimensions.

I am always happy to talk (type) to you ED.

I have something on one of my build boards.
If she see's it I may have a lot of explaining to do and will not be here (OSE) for a while.

[ozzie-crawl]

my df 25 copy has a ride pad but only very small about 8mm wide at the transom and tapers out about 50mm from the transom. i have seen these on a 47" hull and are really big.
i thought my 33" cyber storm was supposed to have a ride pad but it doesnt, still has the hook tho
and both boats have a round keel it isnt sharp

[ED66677]

Now go and get me a few dimensions.

I will as soon as I get back home 'cause I'm at work!

[ED66677]

Simon, the ride pad of my 29" DF copy is... hudge!
the hull is 740mm long and the ride pad start at 440mm from the noze, and slowly becomes wider until 70mm from transom where it is about 10mm wide, then it ends up at 15mm wide at transom, edges are not straight but more like a large arc! difficult to measure in fact but you have an idea now sir!...
and of course, it is always a pleasure to have a contructive "discution" with you

[Simon.O.]

Scott The DF has a hook ?? Is this where the bottom curls downwards at the transom edge. If so is it a desireable thing or is it usually filled and sanded out.

ED Very interesting dimensions on that ride pad / keel setup.

A bit more reading and I will have some useful knowledge.

[ozzie-crawl]

the hook is designed into it, i believe the seaducer hulls are the same
any sign of that motor yet?

[Simon.O.]

Scott This "hook". Can you tell me more about it and what it is please.
A rough Aussie explaination should work.

The motor has not arrived yet but given the time that it took for the props from Andy to arrive I do not expect to see it before next Friday.
Thanks for that one.

[ozzie-crawl]

okay rough aussie explanation: has a less curve than a wombats butt, tho more than a dead dingos dongger
on a serious note there is a slight concave area maybe starts 150mm before the transom its only very shallow and is gone by the time it meets the transom

[Simon.O.]

Right....now you owe me a new keyboard.
Anyone know if a lot of beer is fatal to a keyboard.

That was very funny Scott.

I now have a vision of of the "hook" in a mono bottom that may not ever leave my mind.

Back on track here.
Is this hook a good or bad thing ?

I can do any size ride surface and hook or not that is reccomended for a 29"+ Wild-thing style mono.

[ED66677]

Simon look at the OSE store and check out the pictures of the DF29,5" you'll see exactly how my copy is made, what I can tell you is if you start with this ride pad shape, you'll be on the right track IMO, mine, even if she's not running extremely fast, holds very well in turns, even though I don't have turn fins, she does not bounce in curves but "slides" very well!!!

[Simon.O.]

, mine, even if she's not running extremely fast, holds very well in turns, even though I don't have turn fins, she does not bounce in curves but slides very well !

Does anyone know if a sharp V keel is better for turns or no difference.

I am trying to find out why some hulls have a ride surface and others do not, and what is best suited to outright speed (saw) The stepped question is another thread.

I'm working on it !!