Notice:
The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.
The short answer is yes it should be the same as the hull number. However, sometimes an owner may buy a used sail from another boat which means it could very likely have that boats number on it. I hope this was helpful.
Usually the number on your sail is the hull number. It identifies your boat, and the Coasties can often use it to determine who owns it, if necessary.
However, US Sailing also issues numbers that are used by racers to identify their boats. Other sailing associations also do so, such as the Royal Yachting Association. When a race committee is scoring boats as they cross the finish line, and two white colored boats of the same class cross the finish line in succession, the sail numbers permit the RC to correctly identify each boat.
Sail numbers are required for racing, but I've never heard of any legal requirement for them on a cruising boat, but it's a good thing to have them, in case the Coasties find your boat empty, and adrift.
Steve Milby J/24 "Captiva Wind" previously C&C 35, Cal 25, C25 TR/FK, C22 Past Commodore
Hi Jim, Bladeswell is right on. If you have a mainsail with no number on it and you want to race your boat, simply use the numbers located on the metal plaque on your transom below the tiller. The sail number helps identify boats as they finish - especially if there are a bunch of boats close together at the finish line. BTW - any sailmaker can supply you with the appropriate numbers - the numbers have stick-on backs that "glue" the numbers to the sail. If you don't intend to race, there is little need for the sail number. Bill Holcomb - C25 Snickerdoodle #4839
Thanks Bill and Steve. I had not given any thought to racing identification purposes. Not being a racer I didn't think in terms of the bigger picture. Thanks for helping .
And as far as I know, the USCG will go on the registration number at the bow on the hull, or for "documented" vessels, the name and hail-port. After all, something like 80% of vessels out there don't have sails, so don't have sail numbers. And sail numbers are only meaningful if you know the make and model. And over half the sailboats don't have sails up. Sail numbers are for racing. Period.
Dave Bristle Association "Port Captain" for Mystic/Stonington CT PO of 1985 C-25 SR/FK #5032 Passage, USCG "sixpack" (expired), Now on Eastern 27 $+!nkp*+ Sarge
And as far as I know, the USCG will go on the registration number at the bow on the hull, or for "documented" vessels, the name and hail-port. After all, something like 80% of vessels out there don't have sails, so don't have sail numbers. And sail numbers are only meaningful if you know the make and model. And over half the sailboats don't have sails up. Sail numbers are for racing. Period.
If a sailboat is reported missing and the coasties are searching for it by air, they can identify it easily by the sail numbers. Registration numbers aren't nearly so visible from a distance, if the boat is displaying them at all.
If a nearby boat sees a boat in distress, he probably won't be able to see it's registration numbers or boat name, but he might be able to read its sail numbers, to report it to the coasties.
Sail numbers are a useful device for identifying a boat from a distance, regardless of whether you're a racer or cruiser.
Steve Milby J/24 "Captiva Wind" previously C&C 35, Cal 25, C25 TR/FK, C22 Past Commodore
True, if the sail is up. I don't recall seeing pictures or video of a boat "in distress" with its sails still up, but there probably have been some.
Dave Bristle Association "Port Captain" for Mystic/Stonington CT PO of 1985 C-25 SR/FK #5032 Passage, USCG "sixpack" (expired), Now on Eastern 27 $+!nkp*+ Sarge
USCG: "Sector San Diego, M-five-one: We have three masts with sails sticking up--which one was the number of the Mayday call?"
Dave Bristle Association "Port Captain" for Mystic/Stonington CT PO of 1985 C-25 SR/FK #5032 Passage, USCG "sixpack" (expired), Now on Eastern 27 $+!nkp*+ Sarge
Capt Sam, USCG Master Near Coastal Isle of Hope, GA. Charleston,SC. Lake Murray, SC. Aboard Bobbin - 1982 Standard Rig-Swing Keel #2963 Dinette Model "On a powerboat you are going somewhere....On a Sailboat you are Already There!" Capt Sam
Notice: The advice given on this site is based upon individual or quoted experience, yours may differ. The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.