Trim tab placement on a 24x7
05-13-2013, 09:22 PM
#2
Charter Member
Charter Member
Is neither an acceptable answer? But seriously I prefer at about 20 - 21 degrees and 1/2 inch above the bottom at the closest point. Remember a trim tab is a rudder if installed at 90 degrees and provides lift only at 0 degrees of deadrise. Most will install them at the same deadrise as the hull but there are many factors to consider.
05-14-2013, 07:59 AM
#5
Slow but steady.. Been slammed at work lately..
I have a little more to do in the bilge and cockpit before it's ready for paint / rigging. Have all the interior. Engine is at the machine shop. Will have to run N/A for a season until I come up with the $$ for the blower but should still be a fun ride.
Doug
I have a little more to do in the bilge and cockpit before it's ready for paint / rigging. Have all the interior. Engine is at the machine shop. Will have to run N/A for a season until I come up with the $$ for the blower but should still be a fun ride.
Doug
05-14-2013, 08:29 AM
#6
Is neither an acceptable answer? But seriously I prefer at about 20 - 21 degrees and 1/2 inch above the bottom at the closest point. Remember a trim tab is a rudder if installed at 90 degrees and provides lift only at 0 degrees of deadrise. Most will install them at the same deadrise as the hull but there are many factors to consider.
Part of my issue is I've never driven or even been in a 24x7 so I don't really know what to expect...
I'm assuming it will be prone to listing at slower speeds because of the narrow beam, and may need help keeping the bow down running in the rough being as light as it is...
Last edited by Boatally Insane; 05-14-2013 at 08:34 AM.
05-14-2013, 01:00 PM
#7
Registered
Join Date: May 2007
Location: Georgetown, TX
Posts: 1,272
Likes: 0
Received 0 Likes
on
0 Posts
Slow but steady.. Been slammed at work lately..
I have a little more to do in the bilge and cockpit before it's ready for paint / rigging. Have all the interior. Engine is at the machine shop. Will have to run N/A for a season until I come up with the $$ for the blower but should still be a fun ride.
Doug
I have a little more to do in the bilge and cockpit before it's ready for paint / rigging. Have all the interior. Engine is at the machine shop. Will have to run N/A for a season until I come up with the $$ for the blower but should still be a fun ride.
Doug
Mount those tabs parallel with the hull and not horizontally.
05-14-2013, 02:44 PM
#8
Registered
Join Date: Jul 2004
Location: Stockholm, Sweden
Posts: 1,229
Likes: 0
Received 0 Likes
on
0 Posts
Platinum Member
05-14-2013, 03:33 PM
#10
Registered
Join Date: Jul 2004
Location: Stockholm, Sweden
Posts: 1,229
Likes: 0
Received 0 Likes
on
0 Posts
Sounds like your tabs were mounted too low and always in contact with water, causing drag and maybe even acting as a rocker. Correctly mounted tabs shouldn't rob any speed when in the up position.
