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Old 02-06-2014, 03:36 PM   #81
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Thanks to skid gear and psneeld we've got lots to look at and/or study. But I don't see the QBBL info. I remember a QBBL on the bottom of a sailboat w lots of rocker. I think it was skidgear that posted It several mos ago.

Anyway remembering hull forms accurately is tricky. Marks Coot looks to me now as it's in the grey area. Not much submerged transom but a flatter QBBL than I had remembered. Looks the same as the DeFevers but w less submerged tramsom.

The Meridian in the post of supposed FD boats is probably closer to a planing hull that FD.

And yes psneeld barges are FD. And yes also that there are many other factors in NA but to be able to tell FD from SD I think the QBBL and amount of sub transom is the easiest to use. The latter being more useful being easier to comprehend. Can you think of another more telling design feature for the purpose?
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Old 02-06-2014, 03:52 PM   #82
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[QUOTE=manyboats;211401]Thanks to skid gear and psneeld we've got lots to look at and/or study. But I don't see the QBBL info.

The QBBL discussion is in Dave Gerr's paper attached via my post #71. Think it's on page 13 or 14 in the attachment.
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Old 02-06-2014, 03:54 PM   #83
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Could be that a Choy Lee pilothouse fits the bill

1977 Cheoy Lee CL-50 World Cruiser Power Boat For Sale - www.yachtworld.com

This is a really nice looking boat!
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Old 02-06-2014, 03:55 PM   #84
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The photo shows the Coot laying on its keel, thus is nose down. This drawing shows the boat's lines on the level.



The submerged portion of the hull is about three feet deep in the middle.
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Old 02-06-2014, 04:10 PM   #85
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Thanks to skid gear and psneeld we've got lots to look at and/or study. But I don't see the QBBL info. I remember a QBBL on the bottom of a sailboat w lots of rocker. I think it was skidgear that posted It several mos ago.

Anyway remembering hull forms accurately is tricky. Marks Coot looks to me now as it's in the grey area. Not much submerged transom but a flatter QBBL than I had remembered. Looks the same as the DeFevers but w less submerged tramsom.

The Meridian in the post of supposed FD boats is probably closer to a planing hull that FD.

And yes psneeld barges are FD. And yes also that there are many other factors in NA but to be able to tell FD from SD I think the QBBL and amount of sub transom is the easiest to use. The latter being more useful being easier to comprehend. Can you think of another more telling design feature for the purpose?
Your "purpose" of "quickly telling by a feature or two" is EXACTLY what the issue is....YOU CAN'T "guess" from a rough pic or two showing a feature or two.....

One design feature without significant info on others is only part of it...even the designers often relent that there's overlap or "compromise".
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Old 02-06-2014, 04:31 PM   #86
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One design feature without significant info on others is only part of it...even the designers often relent that there's overlap or "compromise".
Which is why Dave Gerr's calculations and formulae as posted by Skidgear show the definition of FD to be a calculated number and not a "look."

Like "Trawler," terms and definitions used for advertising tend to get trumped in the real world of NA. A decade ago Dashew said emphatically to anyone listening, "I'm designing an FPB not a FD or SD."

So back to the OP's question --------------.
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Old 02-06-2014, 05:02 PM   #87
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Your "purpose" of "quickly telling by a feature or two" is EXACTLY what the issue is....YOU CAN'T "guess" from a rough pic or two showing a feature or two.....

Wow ... a serious case of dejavu just set in!

I though we all agreed it took at least 3 photos ... wait, maybe that was to determine the dancing angels per pinhead ratio ... it is all so confusing.
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Old 02-06-2014, 05:11 PM   #88
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Bry see what you started! There is a boat on G Dock that might fit your needs. Next time we meet up let's take a walk.
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Old 02-06-2014, 05:37 PM   #89
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Wow ... a serious case of dejavu just set in!

I though we all agreed it took at least 3 photos ... wait, maybe that was to determine the dancing angels per pinhead ratio ... it is all so confusing.
wrong again buster...we agreed you need 3 pics/angles of view to determine whether it's REALLY an anchor ball or not....
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Old 02-06-2014, 05:55 PM   #90
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Greetings,



OK Mr. psneeld. Anchor ball or nut?
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Old 02-06-2014, 06:55 PM   #91
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Mark now she looks positively FD. Are you shure that pic's level?

"Dancing Angles" .. "Pinhead ratio" ....... BS ratio?

And psneeld is crying out for NUMBERS and reference ratios.

It seems many here feel that if they wish it hard enough and long enough their SD boat will become a FD boat. It seems many think a FD boat is a real trawler and a SD is a make believe or "wannabe" trawler. Since a huge majority of trawlers are SD it seems to me the opposite should be true. The real trawler is SD. I would rather have a SD boat. I've said many times the ideal boat (for me) is a 12 knot boat. And in my size that's not even close to FD. If one has the money why would they aspire to slug along at significantly less than hull speed?

Any comments see the new thread "SD/FD".
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Old 02-06-2014, 08:24 PM   #92
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Yes Bob a Beer and a walk - however we might have to leave the beer on the boat. Don't think the harbor would appreciate libations on the boardwalk....
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Old 02-07-2014, 03:06 AM   #93
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Why cant we pick a boat based on a mission requirement instead?

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Agree fully, first figure out what you are actually going to do with the boat then look for a boat that fits that use.
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Old 02-07-2014, 03:28 AM   #94
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Agree fully, first figure out what you are actually going to do with the boat then look for a boat that fits that use.
Doesn't everyone do this?
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Old 02-07-2014, 06:49 AM   #95
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We had many of the same requirements that you mentioned when we began our search as well. We looked at many of the Defever 49 pilothouse trawlers. We then came across the Ocean Alexander Mark 1. We purchased one with twin Ford Lehman 120's for the fuel burn. We consume 4 gallons per hour at 8 knots without the gen set running & 5 gallons per hour with. The boat has classic lines that we love, a great layout, good range, covered walkways, & we like the Portuguese bridge. It has been a great boat for us. We also really like the Krogen's & the posting from Dauntless regarding fuel burn & range is quite impressive. Good luck with what ever you come up with.
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Old 02-07-2014, 09:54 AM   #96
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We had many of the same requirements that you mentioned when we began our search as well. We looked at many of the Defever 49 pilothouse trawlers. We then came across the Ocean Alexander Mark 1. We purchased one with twin Ford Lehman 120's for the fuel burn. We consume 4 gallons per hour at 8 knots without the gen set running & 5 gallons per hour with. The boat has classic lines that we love, a great layout, good range, covered walkways, & we like the Portuguese bridge. It has been a great boat for us. We also really like the Krogen's & the posting from Dauntless regarding fuel burn & range is quite impressive. Good luck with what ever you come up with.
The Ocean Alexander mk1 and bigger boats have always been in my sights.. they are really nice boats and have the look, good luck with yours!
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Old 02-07-2014, 02:20 PM   #97
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The Ocean Alexander mk1 and bigger boats have always been in my sights.. they are really nice boats and have the look, good luck with yours!
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I second (third?) that. Was all over one last year and came very close. Well built, spacious, intelligent design, and very cozy. Yeah, cozy is important.
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Old 02-07-2014, 02:30 PM   #98
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I'd looked at one a few years ago in BC but alas the teak decks had leaked too much onto the fuel tanks.

I know of one MK I replica made in wood. One of the artisans from around Port Townsend did it, very nice indeed. One of the Monk NAs had blessed it.
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Old 01-19-2015, 06:46 PM   #99
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Your $175 price puts a damper on all of your wants. The trouble is that your travel route dictates a high fuel capacity which means that the easiest way to get what you want is to digger deeper or get a loan as you will need a blue water trawler which don't come cheap. You can stay with a cheaper vessel but you should plan on using your life raft and a helicopter ride courtesy of the Coast guard .
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