Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 05-10-2013, 18:08   #1
Registered User
 
deluxe68's Avatar

Join Date: Apr 2009
Location: Arizona/Rhode Island
Boat: Swan 432
Posts: 581
Tartan 37/40/43 Ballast

We are looking for a cruising boat and noticed something peculiar about the ballast weights used on the deep fin keeled Tartans. The 3700 displaces 15950 lbs and has a 6000 lb ballast for a 37% ratio. The 4000 displaces 18854 but only has a 5500 keel for a 29% ratio. The 4300 displaces 21775 with a 6750 lb keel for a 30% ratio. All 3 have similar SAD's (22), I cannot figure out why the bigger boats do not have a heavier keel. What am I missing? All 3 were designed by the same guy.
__________________
deluxe68 is offline   Reply With Quote
Old 06-10-2013, 07:35   #2
Moderator Emeritus
 
GordMay's Avatar

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 31,580
Images: 240
Re: Tartan 37/40/43 Ballast

All by Sparkman & Stephens, except as noted.

Tartan 43 ➥ TARTAN 43 sailboat specifications and details on sailboatdata.com
Displ. 17800 lbs./ 8074 kgs.
Ballast: 9200 lbs. / 4173 kgs. (.516)
SA/Disp.: 18.33
Bal./Disp.: 51.68%
Disp./Len.: 233.63

Tartan 41 ➥ TARTAN 41 sailboat specifications and details on sailboatdata.com
Disp. 17850 lbs./ 8097 kgs.
Ballast: 9200 lbs. / 4173 kgs.
SA/Disp.: 17.05
Bal./Disp.: 51.54%
Disp./Len.: 228.53

Tartan 40 ➥ TARTAN 40 sailboat specifications and details on sailboatdata.com
Disp. 17250 lbs./ 7825 kgs.
Ballast: 7600 lbs. / 3447 kgs.
SA/Disp.: 17.46
Bal./Disp.: 44.05%
Disp./Len.: 244.51

Ted Hood’s Tartan 37-1 ➥ TARTAN 37-1 sailboat specifications and details on sailboatdata.com
Disp. 14600 lbs./ 6623 kgs.
Ballast: 4200 lbs. / 1905 kgs.
SA/Disp.: 17.58
Bal./Disp.: 28.76%
Disp./Len.: 393.08

Tartan 37-2K ➥ TARTAN 37-2 K sailboat specifications and details on sailboatdata.com
Disp. 15500 lbs./ 7031 kgs.
Ballast: 7500 lbs. / 3402 kgs.
SA/Disp.: 15.42
Bal./Disp.: 48.39%
Disp./Len.: 298.92

Tartan 37-2 ➥ TARTAN 37-2 sailboat specifications and details on sailboatdata.com
Disp. 15500 lbs./ 7031 kgs.
Ballast: 7500 lbs. / 3402 kgs.
SA/Disp.: 15.42
Bal./Disp.: 48.39%
Disp./Len.: 298.92
__________________
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"



GordMay is offline   Reply With Quote
Old 06-10-2013, 12:53   #3
Registered User
 
deluxe68's Avatar

Join Date: Apr 2009
Location: Arizona/Rhode Island
Boat: Swan 432
Posts: 581
Re: Tartan 37/40/43 Ballast

Quote:
Originally Posted by GordMay View Post
All by Sparkman & Stephens, except as noted.

Tartan 43 ➥ TARTAN 43 sailboat specifications and details on sailboatdata.com
Displ. 17800 lbs./ 8074 kgs.
Ballast: 9200 lbs. / 4173 kgs. (.516)
SA/Disp.: 18.33
Bal./Disp.: 51.68%
Disp./Len.: 233.63

Tartan 41 ➥ TARTAN 41 sailboat specifications and details on sailboatdata.com
Disp. 17850 lbs./ 8097 kgs.
Ballast: 9200 lbs. / 4173 kgs.
SA/Disp.: 17.05
Bal./Disp.: 51.54%
Disp./Len.: 228.53

Tartan 40 ➥ TARTAN 40 sailboat specifications and details on sailboatdata.com
Disp. 17250 lbs./ 7825 kgs.
Ballast: 7600 lbs. / 3447 kgs.
SA/Disp.: 17.46
Bal./Disp.: 44.05%
Disp./Len.: 244.51

Ted Hood’s Tartan 37-1 ➥ TARTAN 37-1 sailboat specifications and details on sailboatdata.com
Disp. 14600 lbs./ 6623 kgs.
Ballast: 4200 lbs. / 1905 kgs.
SA/Disp.: 17.58
Bal./Disp.: 28.76%
Disp./Len.: 393.08

Tartan 37-2K ➥ TARTAN 37-2 K sailboat specifications and details on sailboatdata.com
Disp. 15500 lbs./ 7031 kgs.
Ballast: 7500 lbs. / 3402 kgs.
SA/Disp.: 15.42
Bal./Disp.: 48.39%
Disp./Len.: 298.92

Tartan 37-2 ➥ TARTAN 37-2 sailboat specifications and details on sailboatdata.com
Disp. 15500 lbs./ 7031 kgs.
Ballast: 7500 lbs. / 3402 kgs.
SA/Disp.: 15.42
Bal./Disp.: 48.39%
Disp./Len.: 298.92
I am not referring to the older S&S designs, I should have had the thread title as "Tartan 3700/4000/4300 Ballast". The specs I listed are for brand new boats.
__________________
deluxe68 is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 01:58.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.