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View Full Version : Mysterious Weight Gain???



FlatRacer, aka BarrelBack
01-21-2004, 09:06 PM
I know we've probably discussed this before, but some nice gentleman just sent me a scan of a catalog page on the 18' 2+3 from 1965. The spec sheet listed the gross weight at approx. 1650 lbs.
This was far lower than the number I'd been carrying around in my head for this boat, so I checked the Donzi Marine website. There, the 18' 2+3 Classic is listed at approx. 2700 lbs. Big difference!
Now, even if the first boat was weighed empty, and the second was filled to its 41gallon Gas capacity, this would still only account for about one quarter of the discrepancy.
What gives???

FR :p

Scott Pearson
01-21-2004, 09:10 PM
Donzi didnt make an 18 in 1965.


(NJ)Scott

RedDog
01-21-2004, 09:17 PM
The model list - http://www.donzi.net/dlist/index.htm shows a 1965?

FlatRacer, aka BarrelBack
01-21-2004, 09:34 PM
Scott Pearson:
Donzi didnt make an 18 in 1965.


(NJ)Scott You may be right about that, but they were certainly gearing up for it:

http://www.donzi.net/photos/Pricelist-18-October-1965-600.jpg

The pricelist is from '65, but the catalog page was probably from later on.

FR :p

FlatRacer, aka BarrelBack
01-21-2004, 09:48 PM
Here's the brochure page I was talking about. I'm not really sure if it's from the same brochure the price list is referring to. I'll try to find out.

http://www.donzi.net/photos/18-2_3-Barrel-Back-600.jpg

FR :p

MLerner
01-21-2004, 10:12 PM
I noticed a similar weight gain when I looked at the NADA specs on the 18 classic. 1989 and below lists the 18 weight at 2250 lbs. After 1989 the wieght jumps to 2600 lb. Now, this is just NADA but I'm curious as well -- if true, why the jump?

boldts
01-21-2004, 10:59 PM
I'm not sure if this had anything to do with weight differences, but my 1969 18 Classic had a whole lot less for lack of better word, material in the hull. I mean no flotation stuff, no sound deadning or closed off flooring. When I stood back by the engine, I was standing on the hull bottom, not a pretty, flat, deck placed above the stringers. Just a thought.

Fish boy
01-22-2004, 04:51 AM
Not sure if it is the same thing, but I know a girl who claims to be built the same as in high school... I think she actually added a few extra pounds under the hood too LOL eek! :D :p

Fish
might be a little too caffeinated this morning

FlatRacer, aka BarrelBack
01-22-2004, 02:43 PM
MadPoodle:
October price list woulf be for the 1966 models, which your catalog page is from.. You mean just like the auto makers, huh?
I always wondered why they did that. I mean, who do they think they're fooling anyway?
And the damned magazines that hit the shelves two months early. Wazzup wit dat???
If I were king, THAT would be illegal.

Can you tell I've been couped up inside too long?

FR :rolleyes:

FlatRacer, aka BarrelBack
01-22-2004, 02:56 PM
boldts:
I'm not sure if this had anything to do with weight differences, but my 1969 18 Classic had a whole lot less for lack of better word, material in the hull. I mean no flotation stuff, no sound deadning or closed off flooring. When I stood back by the engine, I was standing on the hull bottom, not a pretty, flat, deck placed above the stringers. Just a thought. Man I'd be disappointed if I'd bought a newer Donzi only to find out the older ones were lighter. You'd think with all they've learned (about laminate schedules and bidirectional glass and vacuum bagging, etc.) in the last 30 years that the newer boats would be lighter AND stronger.

FR :p

Greg Guimond
12-21-2013, 11:05 AM
Ttt .........

mattyboy
12-21-2013, 11:23 AM
I know we've probably discussed this before, but some nice gentleman just sent me a scan of a catalog page on the 18' 2+3 from 1965. The spec sheet listed the gross weight at approx. 1650 lbs.
This was far lower than the number I'd been carrying around in my head for this boat, so I checked the Donzi Marine website. There, the 18' 2+3 Classic is listed at approx. 2700 lbs. Big difference!
Now, even if the first boat was weighed empty, and the second was filled to its 41gallon Gas capacity, this would still only account for about one quarter of the discrepancy.
What gives???

FR :p

I bet that 1650 is without the motor and the 2700 is with a volvo SB

Greg Guimond
12-21-2013, 11:31 AM
I bet that 1650 is without the motor and the 2700 is with a volvo SB

Some info .....




On the brochure that originally came with my '66 18', 289, 2bbl.w/volvo 200 it lists the gross weight at 1,650. Sounds kind of light to me.

mattyboy
12-21-2013, 12:31 PM
Some info .....

the motor drive is 900-1000 lbs so are you saying the boat weighs approx 650lbs?? if they layed them up that light we would not see any left they would have fell apart and sunk

I think they changed how the weighed them

Greg Guimond
12-21-2013, 12:37 PM
Not saying that at all. Where did you come up with that?:confused:

Ghost
12-21-2013, 01:21 PM
Not saying that at all. Where did you come up with that?:confused:

I suspect it's the 1650# number you listed from the brochure (which implicitly appears to include the motor, by the verbiage) minus the 1000lbs for the motor/drive. Sounds like nobody believes that the 1650# including drive train is even close to being true.

Greg Guimond
12-21-2013, 02:47 PM
I don't know what an 18 weighs but I'm thinking an early 16 Ski Sporter (64-68) weighs 1,000 pounds. That 1,000 lbs includes gas tank and bright work.

mattyboy
12-21-2013, 03:12 PM
the early skiskisporter are listed at approx 1500lbs gross weight if they used the standard 110hp volvo 4cyl with aq200 drive complete is 500 lbs

yes then the 1000 -1050 weight of the hull without power holds true

joseph m. hahnl
12-28-2013, 07:31 AM
the motor drive is 900-1000 lbs so are you saying the boat weighs approx 650lbs?? if they layed them up that light we would not see any left they would have fell apart and sunk

I think they changed how the weighed them
:propeller:I would agree. :confused: OR, perhaps its just a miss print "Typo". Type writers were cutting edge technology back then:wink: and you needed a 52 page owners manual to operate them:hyper: In all seriousness:lookaroun:. They did have a lot of prop train options:cool:Gross weight of the boat and then add the drive package weight:yes: sounds absolutely viable:smile:. Although I didn't see any weights listed in either document:boggled:.

As far as the 250 lbs on the newer boats , could easily be chalked up to Coosa ,EFI, and Bravo drive's:idea:

mattyboy
12-28-2013, 07:47 AM
another possibility is they estimated the hull at 1000 lbs and the weight of the 165 eaton package at 650lb. the volvo 180 /200 v8 combo is 815lbs

or they figured the additional glass was 150 lbs and they used the 500 lbs for the volvo 110??

justleft
12-28-2013, 08:20 PM
Wow ! Custom Trailer $620 :hyper:

78550

mattyboy
01-01-2014, 01:12 PM
rocket trailer