Mahe 36: Coast Guard Docmentation Mahe Evolution

[Gpryce]

Anyone willing to share the measurements and relevant information from their Coast Guard Documentation? I'd like to document my 2012 Mahe Evolution but I'm not at the boat to take measurements. I've searched the forum without success.

[kds65]

We have an older 2007 mahe that is documented. What do you wish to know?

[Maryscoty1]

Share more! You can tell more about it right!.

[Gpryce]

If you used the simplified measurement form, the dimensions used would be helpful, i.e. depth of hull from deck to bottom of hull excluding keel, length of hull excluding engine room, width of a single hull. Approximate salon dimensions H x W x L. Net and gross tonnage. Thanks, any information appreciated.

[kds65]

I don’t remember having to specify all that stuff. I’ll locate my documentation and let you know.

[SailingHarmonie]

None of the information you are looking for is on a boat's documentation certificate. It would normally have been submitted as part of the builders certificate when the boat was originally built and used by the documenting agency to calculate the gross and net tonnage numbers.

If you do not have this information, the best place to get it is to contact FP and ask them. They will have it in their files, they might even be able to get you a builder's certificate. Although that is more work than most boat builders want to go to for an old model.

[capt jgw]

I've never documented a boat from scratch, all mine were already doc'd so we used the existing tonnage numbers. But I have seen identical boats with widely varying numbers, like a factor of two or three. Depends I guess on who does the measuring. Based on that I don't think the numbers are all that important for pleasure craft. Anything close is close enough. For commercial boats on the other hand, tonnage is very important. Even then there is a lot of cheating. Crewing, equipment, and even berthing requirements go up drastically at 100 gross tons, but most any vessel under around 200 feet length can be designed and measured to stay under 100 GT. One 65 foot boat I ran was 94 tons but a 285 foot car ferry here is only 98 tons. Makes no sense at all. Note that in this context "ton" is a measure of volume (100 cubic feet) and has nothing to do with weight or displacement.

[kds65]

We didn’t start the process from scratch, PO did that. My documentation lists :
Gross tonnage 16 GRT, Net tonnage 15 GRT, Length 36, breadth 19.3, depth 6.5, place built Aigrefeuille France.

[Gpryce]

Thanks to all that replied and thank you kds65 for the specifics.

[Montanan]

Application for Simplified Measurements:

https://www.dco.uscg.mil/Portals/9/D...MIp21zNw%3D%3D

Application for documentation:

https://www.dco.uscg.mil/Portals/9/D..._IFJv_1A%3d%3d

For reference purposes:

This is how you are to make it: the length of the ark 300 cubits, its breadth 50 cubits, and its height 30 cubits. —Genesis 7:15 (ESV)

A cubit is roughly 18 inches. To make these numbers make sense to us today Noah’s ark is 450 ft. (137.16 m) long, 75 ft. (22.86 m) wide, and 45 ft. (13.716 m) tall.