bertram31.com

Charlie
316 = bahia mar (ok I cheated and knew the answer)
757 .... a 1967 or 1968 ?

Mikey
hull #327 a 1963 .... not crazy

Clearly, the numbering to be used for 20 yrs was not thought out on day one !!

you are correct, now tell me how you got that, and what hull # is it
sorry i didnt see 67, my registration says 1968

Bertramp,
Yes thats right.

charlie ...
you have hull #757.
by that time, it seems the numbering got better.
my 1970 hull is marked
316-1007
316 is Bahia ... we know that
Once they got the numbering together with the 31#-#### format, you can almost just go to the first digit after the "-" 7xx approx 1967 7=7approx
1969 is probably gonna be high 8xx or 9xx .... seems like its falling out that way. Just checked ... Coolair is a 1969 and is #854
My 1970 is one of the first with 4 digits after the "-"
I would guess 31X-12xx would be a 1972 approx

thanks
i think i got it now, so your saying it should be a 1967, instead of 68

Charlie ... I figured it was approximate 67 or 68 based upon the number. I doubt they made the exact same number every year. I think rule of thumb is approx 100 a yr., but they probably made 75 some years and 125 others. The numbers just "kinda get you there".
I wonder what the first boat was that got it stamped on the outside of the transom. I'm not sure when that became USCG law.

i don`t know the first stamped 31 but robbie has a fbc we sold at oakdale yacth and the transum is marked i think 1298 ? it is a dec. 1992 boat if robbie chines in we can find out for sure.

Bob .... no 1992s were made.
I gotta think its a 1972 or 1973 ... maybe early 1974.

Do you know when USCG started the starboard side transom stamping mandate ?
Once the outside transom numbers started, the year had to be in the number stamp, so I would think that the format changed some.

Whats your hull # .... c'mon put it out there

sorry 1972!!!! slip of the finger

mine is completed april 11 1973 -------------1301

Federal Boating act November1972 made it manditory for hull ID
as pete stated on page one

Bob ... where is your hull # located ?

oakdale long island ny/oakdale yacth club . crazy my serial # was in six places as i rip down the boat . the bottom side of the galley sink vanity , a small piece that use to sit over the port side locker, on the frame of the old head vanity i removed, in pencil under forward solon seat also someones name as a signature . on the inside starboard side of the transum .the first owner of the boat according to CC document research was on a piece in black crayon . which lead me to believe the boat was made for him . he also past down the original bertram owners manual fill with all kinds of paperwork.

So bertramp
you saying my hull number is 8 - made 1968 and it was the 54th of that year, or is it the 854th hull ever built

coolair,

I'm hull #605 FBC and supposely it was the 105th of the FBC made in 67.

Cool ...
I think you are the 854th hull made and it was 1969.

DQ ...
I think you are the 605th hull made and it was 1967.

I'm a number geek in a hawaiian shirt .... what can I tell you

Charlie and Bertramp,

Based on mine which is registered as a 1968 hull# 316-664 (I found the #664 written inside the port engine box), I would say that hull #757 is not a 67, but at least a 68. I wish mine was #757, I fly Boeing 757s for a living. Want to trade? :-D

Craig G wrote:Charlie and Bertramp,

Based on mine which is registered as a 1968 hull# 316-664 (I found the #664 written inside the port engine box), I would say that hull #757 is not a 67, but at least a 68. I wish mine was #757, I fly Boeing 757s for a living. Want to trade? :-D

Just get a black magic marker and scrawl 316-757 in a few places around the boat. That's all Bertram did, and it'll be cheaper than a trade--save you sales tax, shipping fees, survey costs, etc.

Good idea John, maybe I'll write 787 all over it to entice Boeing to hurry up and start deliveries of the Dreamliner. I kinda like my boat anyway, so I guess I won't trade.

Guy's here are some hull numbers from my records doing surveys on 31 Bertrams.

1961 Sport Fish Capy 5-10-1961 Hull 135 34 th hull
1961 Sport Fish ForTuna /Iasgar Hull 161 60 th hull
1961 Express Vizcaya 12-13-9161 Hull 186 85 th hull
1962 Express Caracoastal Hull 242 141th hull
1963 Express Finest Kind Hull 333 232th hull
1963 Express Kahuna Hull 335 234th hull
1966 Express Sandy Bird Hull 563 462th hull
1968 Fly Bridge Becky Too ?
1970 Fly Bridge Amore Mia Hull 901 800th hull
1970 Fly Bridge Perfect Hull 958
1970 Fly Bridge Summer Wind Hull 1056
1971 Fly Bridge Easy Rider Hull 1092
1973 Sport Fish Island Girl Hull 1172
1973 Sport Fish Sea Chele Hull 1321
1973 Fly Bridge Budy Boy Hull 1370

You can see the progession of the numbers starting at 101 in 1961. There are a few years that are missing and I had a few more boats that I could not find any numbers at all they were painted over. Hope this helps with the numbering discussion. Pete Fallon

Correction on Kahuna it is a sport fish not an express.

Pete,

Nice time-line that you put together for us, and consistent with former Bertram engineer Lee Dana's explanation to me. Thanks much. (Don't want to hi-jack the thread, but I hope your new knee is doing well.)

Tommy

Bertramp,

DQ ...
I think you are the 605th hull made and it was 1967.

Bertramp,
Supposedly a while back when I had talk to Richard Kidd and he told me that hull #605 was the 105th B31 Fly Bridge Crusier that was made. It doesn't mean it was the 605th hull made from what I undersatnd.

Pete,
Any thoughts from you on this statement. I hope this is the last for ya on all these knee surgery's.

DQ

Tommy, Bertramp, DQ and the rest of the faithful,

My knee is doing better, still going to PT and doctor, Capt Pat measured my leg for a real teak peg leg last weekend. If this knee don't work it's going to a epoxy teak unit.

Bertramp it was real nice to meet you last weekend, I hope that the numbers I posted cleared up some timeline questions on year of our boats.

DQ, from my records hull 605 should be a late 1966 or early 1967 model year, the only real way of verifying the number is from the glassed in paper tag in the port V berth or on the inner transom on the centerline under the aft cockpit sole support shelf or on the outter transom.

Models of the boats were 314 for open sport fish, 315 for enclosed bulkhead fly bridge cruisers and so forth. Most of the assembly line workers at Bertram were not highly educated and used parts from other boats in the woodworking shop, if it fit it didn't realed matter what number was written on it. This discussion can drag on forever but it keeps us together. Pete

Thanks Peter...nice meeting you too.
I still believe that if we all put hull numbers out there in our headers/footers we would have a great reference source.
My $.02

OK.

Went to profile, added the info, clicked submit, said profile was updated, and didn't show. What am I doing wrong?

Uh, nevermind.

ok
just updated mine

Ok gang..my hull id number is BERG1688M77L....Any translation

Aloha,

Ok here is mine

opunui wrote:Ok gang..my hull id number is BERG1688M77L....Any translation

Aloha,

Hmm ... yours is the numbering config after mine.
the "BERG" ... is bertram
the "1688" ... I would belive to be hull #
the "M77L" ... is the mystery
seems like they were no longer listing the "3XX" for model #

Hi Sandbox Players, Just thought I would add my hull numbers to the timeline. She is a 1969 Bertram 31 Moppie Cuddy which you guys have probably seen on my earlier post - Harry

I've updated my signature block too. My boat is the one on Pete's list shown as the Amore Mia.

I think I updated it..Russ

I'm glad to see more guys coming onboard with their hull numbers. Great idea Steve. Harry, where exactly did you find that tag glassed in your hull. All I've been able to come up with is the # 664 written with magic marker on the top inside of my port engine box. It is registered as a 1968, so it would have to be a very early 1968, or might really be a 1967. Any more hull numbers hiding out there?

Craig

Check the transome. Should be centered just under the steering or depending where the bilge pump is just above the pump.

hey not fair Russ has 2!

the m77l indicates military spec. which could mean anything government from fire dept/police / military . the boat was pre ordered from bertram with the agency option list.

aaahhh ... the plot thickens
thanks capt.

On militaries was it extra layup or special resins or ??

Coolair ,only untill one is sold..Russ

Mine seems to be B494572

Found it in the documentation provided to me when I acquired the boat and from this year insurance survey. Year built 1972 Fly Bridge Cruiser.

bertramp i have not taken measurements on every piece but the transom is definitly 1/16" thicker about 1' from bottom then two 1967 one 1973 one 1973 and one 1964 . bottom 6" from keel 2' forward of gas tank is the same as the 1972/1973 m boat is a 1979 b.t.w.

I have a commercial Whaler (great boat) they do some extra laminate and finish in a flat grey.
In Whalers ... "if you go grey, you'll never go back" !!

.... sorry, sometimes I'm a natural born fool !

Capt'n Bob..When you say military spec what would you think would be different...My boat originaly came from Florida via Washington State then on to Hawaii.

Aloha,

Coolair ,only untill one is sold..Russ


russ which one are you going to sell, lol

how could you!!! rebuild them both!!!

opunui the change in the layup was not for the hell of it. the police requested a step down with three large steps so they could board a boat on the high seas so bertram increased the thickness of transom to support steps.. sides have big bumpers to go along side a another boat and the bumpers are thru bolted so they increased the thickness off hull sides on point to note the M boats did not have rod holders on gunnels off course so when they were sold down the road you can see gunnel rod holders cut in .the military mounted a 30cal. machine gun on port and starboard side of overhang so you can see that part was heavy layup with filled in bolt holes.the deck up forward is 11/4" thick for same reason .

coolair,that just happen...Russ

Bob,
thanks for the info.it is very interesting.

Aloha,Bobby