CLC Peeler Skiff testing

[keyhavenpotterer]

It's good to see rigorous testing taking place on wooden boat designs. The CLC Peeler Skiff has just been through some floatation testing

http://www.facebook.com/photo.php?fb...type=3&theater

Here with 5000 lbs loaded aboard. 1/4" of freeboard left!



Brian

[potomac]

Note to self: No more than 5,000 lbs. of peelers in the skiff. That's a lot of peelers.

[James McMullen]

Why is it so much narrower forward than other skiffs of this sort? That boat has what looks like a shockingly unbalanced plan form to me with such a wide transom and max beam at the WL so far aft. To support all that weight of the motor and driver sitting dead aft or something? This seems to be a purely flat water, protected area shape with that extra-broach-ey stern. I'm fairly dubious about its seaworthiness in open water conditions or chop. . .

[James McMullen]

Compare it to boats like the Lumberyard Skiff or Tom Hill's Long Point Skiff or Ken Swan's Dolphin and you'll see what I mean.

[Spokaloo]

James, it's fairly similar to the Gardner Clam Skiff. It relies on deep flare tom compensate for the narrow entrance.

E

[Robert Meyer]

Why is it so much narrower forward than other skiffs of this sort? That boat has what looks like a shockingly unbalanced plan form to me with such a wide transom and max beam at the WL so far aft. To support all that weight of the motor and driver sitting dead aft or something? This seems to be a purely flat water, protected area shape with that extra-broach-ey stern. I'm fairly dubious about its seaworthiness in open water conditions or chop

Compare it to boats like the Lumberyard Skiff or Tom Hill's Long Point Skiff or Ken Swan's Dolphin and you'll see what I mean. . . .

Comparison of Lumberyard 16' Skiff and the 15' Peeler Skiff

Length LYS 15' 6” Peeler 15' 2”



Max Beam LYS 6 '6” Peeler 6'3”



Beam at sheer
45” from bow LYS 43” Peeler 42”

Beam at sheer
60” from bow LYS 57” Peeler 55”



Depth LYS 1' 10” Peeler At bow 2' 6”
Peeler Min depth 1' 7”



Draft LYS 6” Peeler 4”



Other Specs.
The Peeler has a Max. Load capacity of 1300lbs.
Peeler Max. Power 15 hp
Peeler weight 275 lbs


LYS Transom



Peeler Transom


LYS Bottom at Chine


Peeler bottom at chine


The Peeler doesn't look like such a " shockingly unbalanced plan form" to me.

[James McMullen]

It's not the beam at the sheer, Robert, it's the beam at the waterplane. The prismatic coefficient of the bow of that peeler at the waterline is awfully pointy. That, coupled with a wide transom and hard chines, doesn't seem like a whole lot of fun in a following sea. Check out how very differently the volumes are distributed in your own 16' Devlin Candlefish, a vastly more seaworthy hull form than any of these flattie skiff types, and I think you'll see what I mean.

[keyhavenpotterer]

Couple more pictures






Brian

[JimD]

Note to self: No more than 5,000 lbs. of peelers in the skiff. That's a lot of peelers.

More than any one man needs, actually.

[wizbang 13]

What is the purpose of putting over 2 tons of metal in a skiff in a tank?

[Spokaloo]

Static load testing, pretty common practice. Helps establish lbs per inch immersion (PPI) for various loading.

E

[skaraborgcraft]

I thought all these moden design programmes spat that kind of information out at the click of a mouse?

[keyhavenpotterer]

I thought all these moden design programmes spat that kind of information out at the click of a mouse?

Here's what it says on the link above "

At 5000 pounds (!) exactly, there was a quarter-inch of freeboard left. Back at CLC, I had calculated that we'd reach that point at 5009 pounds. A head-swelling moment for this designer: off by only eighteen-hundredths of one percent!"

Brian

[skaraborgcraft]

So, he didnt trust the computer figures? I guess he can relax now in the knowledge that his computer gives him pretty accurate results. Although i dont know anybody who would load up a boat and leave 1/4in freeboard,so i dont honestly see the point. The designer himself quotes 4 adults and an outboard as max payload......so.....are Americans and the Mc-way- of- life really tuned everyone so obese?

[keyhavenpotterer]

Of course the figures were trusted. Again to quote John "

We sent the Peeler Skiff to a Coast Guard facility near Solomons, MD, for full safety certification. The test regime was really interesting." That was the whole point of my starting this thread - that's it's really good to see a wooden boat kit supplier taking his product fpr CoastGuard certification testing.

Brian

[skaraborgcraft]

I didnt see that quote anywhere Brian, had i seen that,then the whole posting now makes perfect sense and i agree that having a kit certified is a good thing. Talking of which, how does one get an RCD compliance on a SCAMP without spending a small fortune??
Cheers

[keyhavenpotterer]

Talking of which, how does one get an RCD compliance on a SCAMP without spending a small fortune??
Cheers

Good question. I am not sure it does cost a fortune. The cost would be worth it I think. It's mainly a dreadful amount of paper work. I did see a scheme where a kit supplier of a plywood RIB set up a scheme whereby the builder took a series of pictures of the build as he progressed, sent them to the RYA who then issued the compliance certificate. This is the only time I have ever seen a system for gaining RCD certification for a home build of a kit.

Here's the link to the Gemini RIB pages, and they are still offering the certification for a home build http://www.geminiindustries.co.uk/rib%20rib%20kits.htm Perhaps they could cut and supply SCAMP kits in the same way - after all they have already been through and successfully achieved the required end result.

Something similar would be great for SCAMP and would make the kit build very attractive.

Pretty sure SCAMP would fly through any testing. We could do with a retired lawyer who want's to build a SCAMP!

Here's the link to the RYA RCD Certification http://www.rya.org.uk/SiteCollection...ce%20Guide.pdf

Brian

[Carl Cramer]

I remember talking extensively with Russell & Ashlyn Brown at PT Watercraft (www.ptwatercraft.com) about the process. Their 18-1/2' PT Skiff underwent the same safety certification some years ago. Pretty fascinating...