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  #1  
Old 04-09-2009, 03:17 PM
cSickNick cSickNick is offline
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Default 20' Transom angle specs info ?

Hi All,

Can someone point me to a link or post this info? I tried looking thru the online Literature section, but did not see it. Other info on length/width of steps appreciated too.

I assume all 20' dimensions are the same? If not looking specifically for the 20' Seafari specs.

Thanks Nick
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  #2  
Old 04-09-2009, 03:37 PM
Fr. Frank Fr. Frank is offline
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Default Re: 20' Transom angle specs info ?

Nick, I measured the angle on my Seafari transom a few years ago, and it is 14 degrees. I don't know the answer to the rest of the question.
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Fr. Frank says:
Jesus liked fishing, too. He even walked on water to get to the boat!

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'73 Cobia 18' prototype "Casting Skiff", 70hp Mercury
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  #3  
Old 04-09-2009, 04:30 PM
1bayouboy 1bayouboy is offline
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Default Re: 20' Transom angle specs info ?

Do all the models have the same transom angle.....??

I thought it was 13 degrees...???
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  #4  
Old 04-09-2009, 06:08 PM
Bigshrimpin Bigshrimpin is offline
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Default Re: 20' Transom angle specs info ?

Quote:
Hi All,

Can someone point me to a link or post this info? I tried looking thru the online Literature section, but did not see it. Other info on length/width of steps appreciated too.

I assume all 20' dimensions are the same? If not looking specifically for the 20' Seafari specs.

Thanks Nick

Hey Nick - I measured several times for the bracket . . . I had 13 degrees. You can measure 13, but cut 12 or 14 depending on the way the wind blows.

http://www.classicseacraft.com/forum...=&fpart=1&vc=1

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  #5  
Old 04-09-2009, 06:42 PM
76Red18 76Red18 is offline
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Default Re: 20' Transom angle specs info ?

If the 20 is the same as my 18, I have a scaled drawing of the transom. Give me a little while and I'll try to figure out how to transfer it from my cad to this site.
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  #6  
Old 04-09-2009, 08:10 PM
Bigshrimpin Bigshrimpin is offline
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Default Re: 20' Transom angle specs info ?

You can't see the difference visually b/w 12, 13 or 14 degrees
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  #7  
Old 04-09-2009, 11:13 PM
Fr. Frank Fr. Frank is offline
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Default Re: 20' Transom angle specs info ?

There's a formula I can't remember, wherein you take the long side of a carpenter's square and put it under the keel line with the hull and up against the vertical chine, with the short arm of the square pointing up. You then slide the square as far under the hull as it will go, until the end of the short arm of the square makes contact with the transom. Using the height above the hull bottom for the contact in relations to the distance of the inside corner of the square from the transom will give you the transom angle.

An online transom angle calculator can be found here: http://www.rocketflap.com/transom_calc.php
__________________
Common Sense is learning from your mistakes. Wisdom is learning from the other guy's mistakes.

Fr. Frank says:
Jesus liked fishing, too. He even walked on water to get to the boat!

Currently without a SeaCraft
(2) Pompano 12' fishing kayaks
'73 Cobia 18' prototype "Casting Skiff", 70hp Mercury
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  #8  
Old 04-10-2009, 12:16 PM
cSickNick cSickNick is offline
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Default Re: 20' Transom angle specs info ?

Guys thanks for that info.

Does anyone have the angle specs of the 3 steps? I could measure that info over the weekend, but was wondering if someone or somewhere this info is online.

I could scan in a copy of a created written draft, but was wondering if someone already had a "pretty" CAD like copy showing these dimensions and angles.

Thanks Nick
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  #9  
Old 04-10-2009, 06:33 PM
76Red18 76Red18 is offline
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Default Re: 20' Transom angle specs info ?

I can't seem to transfer from cad and my scanner doesn't work so here's some numbers from the 18. Maybe someone can verify if the 18 and 20 are the same.
- 0 is the keel
- step 1 is over 12", up 4.5" with a height of 1",surface is 14"
- step 2 is over 13.5" from step 1, up 2.75" with a height of 1", surface is 12 "
- chine is over 14.25" from step 2, up 3", surface is 14.5"
_ transom width at rub rail height is 6'9" not including the rub rails

Send me your address and I'll mail you the drawing.
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  #10  
Old 04-13-2009, 02:49 PM
cSickNick cSickNick is offline
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Default Re: 20' Transom angle specs info ?

Hi Red,

Please send them to my email profile: [email protected]

I took some quick measurements hiding from the "wife's" Easter sunday to compare with your drawing.

Real Easter (Greek) is this Sunday!

- Nick
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