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Search took 0.00 seconds. Search: Posts Made By: keelbolts
Forum: Monohull Sailboats 22-05-2009, 05:32
Replies: 201
Views: 59,563
Posted By keelbolts
I gather centerboard trunks can be a problem,...

I gather centerboard trunks can be a problem, especially on wooden boats, but I've always thought they make sense if you're planning to sail to a place with shallow water. Close as you can come to...
Forum: Monohull Sailboats 20-05-2009, 10:29
Replies: 201
Views: 59,563
Posted By keelbolts
I ride a horse.

I ride a horse.
Forum: Monohull Sailboats 20-05-2009, 09:46
Replies: 201
Views: 59,563
Posted By keelbolts
Oh, now that was uncalled for. Creating lift or...

Oh, now that was uncalled for. Creating lift or lifted, if you believe a fin keel will beat a modified full keel to windward, we both have a lot to learn.
Forum: Monohull Sailboats 20-05-2009, 09:07
Replies: 201
Views: 59,563
Posted By keelbolts
I've known how a wing works for many, many years....

I've known how a wing works for many, many years. The only thing that's new to me is the idea that something being blown up or over can be thought of as "creating lift". In that differences in...
Forum: Monohull Sailboats 20-05-2009, 06:24
Replies: 201
Views: 59,563
Posted By keelbolts
I believe I owe many of you an apology. After...

I believe I owe many of you an apology. After batting around the question of a form's creating lift v. being lifted with my son, I have been persuaded that the process is the same. While I maintain...
Forum: Monohull Sailboats 15-05-2009, 11:30
Replies: 201
Views: 59,563
Posted By keelbolts
What we need here is an experiment. I believe,...

What we need here is an experiment. I believe, though I may be wrong, that if you put an asymmetrical wing in a wind tunnel an blow wind directly at it, it will try to rise. If you do the same with...
Forum: Monohull Sailboats 15-05-2009, 11:12
Replies: 201
Views: 59,563
Posted By keelbolts
I think that's what I've been saying. I believe...

I think that's what I've been saying. I believe that here's a difference between an object creating lift & being lifted. Am I mistaken?
Forum: Monohull Sailboats 15-05-2009, 11:06
Replies: 201
Views: 59,563
Posted By keelbolts
Pitts are low powered? I've seen 'em fly & I...

Pitts are low powered? I've seen 'em fly & I assumed they must be fairly high powered. Aren't stunt planes usually high powered?
Forum: Monohull Sailboats 15-05-2009, 10:56
Replies: 201
Views: 59,563
Posted By keelbolts
I spent several years working on Navy jets so I...

I spent several years working on Navy jets so I know that aircraft can fly upside down for varying lengths of time. Questions: does that ability represent the triumph of power over gravity. Put a...
Forum: Monohull Sailboats 15-05-2009, 10:49
Replies: 201
Views: 59,563
Posted By keelbolts
The lift on a wing is created by the wing itself....

The lift on a wing is created by the wing itself. As I have always understood it, as the wing moves thru the air, the differing shapes of the upper & lower surfaces produces different pressures above...
Forum: Monohull Sailboats 15-05-2009, 10:41
Replies: 201
Views: 59,563
Posted By keelbolts
Next thing you know, you guys will be telling me...

Next thing you know, you guys will be telling me there's no Easter Bunny.
Forum: Monohull Sailboats 15-05-2009, 10:39
Replies: 201
Views: 59,563
Posted By keelbolts
I guess it was a leading question, or whatever...

I guess it was a leading question, or whatever you call them, meant to lead to a point. An aircraft wing creates lift while moving directly thru the air. A keel requires leeway to make lift. ...
Forum: Monohull Sailboats 15-05-2009, 10:27
Replies: 201
Views: 59,563
Posted By keelbolts
Still trying to learn - not simply arguing. ...

Still trying to learn - not simply arguing.

You state that a keel and a wing function in the same way.
one question, one observation:

Question: does a keel create lift without leeway?
...
Forum: Monohull Sailboats 15-05-2009, 09:58
Replies: 201
Views: 59,563
Posted By keelbolts
Mr. Perry, please don't be in any way offended by...

Mr. Perry, please don't be in any way offended by any of what I've said. I feel a bit like I'm arguing flight characteristics with the Wright Brothers. I do think that we have a language problem in...
Forum: Monohull Sailboats 15-05-2009, 09:14
Replies: 201
Views: 59,563
Posted By keelbolts
I think, that even in Clark's time, there were...

I think, that even in Clark's time, there were those that didn't buy MS theory. I remember reading that it wasn't any good since it was figured on a static hull and was irrelevant once the boat was...
Forum: Monohull Sailboats 15-05-2009, 07:27
Replies: 201
Views: 59,563
Posted By keelbolts
I should probably point out that my opinions on...

I should probably point out that my opinions on fin keeled boats are not based on my Westerly. She's all about useable volume and sitting upright when the water goes away and, at those things, she...
Forum: Monohull Sailboats 14-05-2009, 11:47
Replies: 201
Views: 59,563
Posted By keelbolts
I don't want to offend anybody and I readily...

I don't want to offend anybody and I readily admit I'm not even an amateur boat designer. I've read a bit about it, but my statements are 99% "seat of the pants." I've sailed both & I've found...
Forum: Monohull Sailboats 14-05-2009, 11:25
Replies: 201
Views: 59,563
Posted By keelbolts
When I say full keel, this is what I'm thinking...

When I say full keel, this is what I'm thinking of.
Forum: Monohull Sailboats 14-05-2009, 11:20
Replies: 201
Views: 59,563
Posted By keelbolts
It's a fin keel. What's going to keep it from...

It's a fin keel. What's going to keep it from falling off when the wind blows?
Forum: Monohull Sailboats 14-05-2009, 09:58
Replies: 201
Views: 59,563
Posted By keelbolts
Stability? I'll readily admit that I don't know...

Stability? I'll readily admit that I don't know the definition of stability as it applies to sailboat design. Having said that, in static terms, I'd imagine a 6' fin keel with two tons of lead on the...
Forum: Monohull Sailboats 12-05-2009, 08:44
Replies: 201
Views: 59,563
Posted By keelbolts
Mr. Perry, I understand, exactly, the position...

Mr. Perry, I understand, exactly, the position you're in. I spent several years in architecture. What I wanted often had to take a back seat to what the client wanted. I could, and did, try to...
Forum: Monohull Sailboats 12-05-2009, 06:21
Replies: 201
Views: 59,563
Posted By keelbolts
You're right, Hiracer, it's not that simple. I...

You're right, Hiracer, it's not that simple. I stand by what I said, and yet I now happily own a boat that has, not one, but two fin keels. My full keel boat is all you could want in a deep water...
Forum: Monohull Sailboats 11-05-2009, 12:10
Replies: 201
Views: 59,563
Posted By keelbolts
Remember that those loooong overhangs were there...

Remember that those loooong overhangs were there primarily to cheat the rules. Some of the later J-boats must have had LWLs equal to about half of their LODs. Ratings were based, among other...
Forum: Monohull Sailboats 06-05-2009, 10:09
Replies: 201
Views: 59,563
Posted By keelbolts
Thank you Mr. Perry. I am clear on this now. ...

Thank you Mr. Perry. I am clear on this now. What a great site this is, where I can learn about how a keel works from a designer of your stature. Thanks again.
Forum: Monohull Sailboats 06-05-2009, 09:45
Replies: 201
Views: 59,563
Posted By keelbolts
I'm nowhere near stupid enough to argue with you...

I'm nowhere near stupid enough to argue with you about keel design, so anything I say here is about clarification for me. I can see how water working on the keel at an angle would lift the keel, in...
Showing results 1 to 25 of 30
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