Go Back  Offshoreonly.com > Technical > General Q & A
Need trim tab help and recommendations >

Need trim tab help and recommendations

Notices

Need trim tab help and recommendations

Thread Tools
 
Old 12-13-2007, 02:37 PM
  #1  
Registered
Thread Starter
 
Join Date: Sep 2006
Location: Toronto, ON
Posts: 595
Likes: 0
Received 0 Likes on 0 Posts
Default Need trim tab help and recommendations

All,

I've got a Scarab SCS that does not have trim tabs on it. The boat is 23'3" long (hull length about 22'6") with a dry weight of 3750lb. Power is a 502MAG EFI, so the boat can do mid 70's without a problem.

I believe a set of trim tabs will help the boat - first I can stabilize the boat running about 70 in non-flat seas - currently it will start to chine walk if the bay is not flat. A bit of tab should eliminate the walking.

Second, will they help in rough water? When Georgian Bay gets rough, the wave period is pretty close together, and what happens is the boat doesn't really have time to recover from hitting the first wave before it hits the second - so usually it misses the deep V part of the hull and slams into the underside - giving a painful ride. Will tabs help to keep the boat more level so that the bow can do its job and slice through the wave? This really slows us down now to basically barely planing speeds.

I am looking at a set of Dana's LT series:

They are 16x12" and I am wondering if they are the right size for my boat. They are slightly smaller than 280K's but slightly larger than the Bennett dual rams that Wellcraft made an option on this boat. Dana's website says they are for boats under 24' and under 65mph so I'm not sure if these will even work, but they are half the price of something like 280K's and look a lot stronger than the Bennetts.

Suggestions?

Thanks,

Rob
freshwaterfiend is offline  
Old 12-13-2007, 09:22 PM
  #2  
Registered
VIP Member
 
tggrounds's Avatar
 
Join Date: Jan 2006
Location: Newport, RI
Posts: 85
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by freshwaterfiend
All,

I've got a Scarab SCS that does not have trim tabs on it. The boat is 23'3" long (hull length about 22'6") with a dry weight of 3750lb. Power is a 502MAG EFI, so the boat can do mid 70's without a problem.

I believe a set of trim tabs will help the boat - first I can stabilize the boat running about 70 in non-flat seas - currently it will start to chine walk if the bay is not flat. A bit of tab should eliminate the walking.

Second, will they help in rough water? When Georgian Bay gets rough, the wave period is pretty close together, and what happens is the boat doesn't really have time to recover from hitting the first wave before it hits the second - so usually it misses the deep V part of the hull and slams into the underside - giving a painful ride. Will tabs help to keep the boat more level so that the bow can do its job and slice through the wave? This really slows us down now to basically barely planing speeds.

I am looking at a set of Dana's LT series:

They are 16x12" and I am wondering if they are the right size for my boat. They are slightly smaller than 280K's but slightly larger than the Bennett dual rams that Wellcraft made an option on this boat. Dana's website says they are for boats under 24' and under 65mph so I'm not sure if these will even work, but they are half the price of something like 280K's and look a lot stronger than the Bennetts.

Suggestions?

Thanks,

Rob
I have them on my 24 pantera and work fine for me but this was my first year for boating and only have 5 hours on them.
Attached Thumbnails Need trim tab help and recommendations-dsc01274.jpg   Need trim tab help and recommendations-dsc01307.jpg  
tggrounds is offline  
Old 12-14-2007, 06:12 AM
  #3  
Registered
 
Join Date: Jun 2006
Location: Littleton,Co
Posts: 371
Likes: 0
Received 0 Likes on 0 Posts
Default

Rob,I've got the factory dual ram Bennetts on my boat and they are plenty strong and do what they are intended to do.

Granted,this is a lake boat but on windy/busy days we'll get 3 foot chops and the boat cuts right thru the swell.I really dont think these water rockets are intended for too big of choppy water anyway.

Steve
Prostreeter is offline  
Old 12-14-2007, 08:30 AM
  #4  
Registered
 
Join Date: Jul 2007
Posts: 753
Likes: 0
Received 0 Likes on 0 Posts
Default

i have a scarab 22 that i put the electric tabs on, faster than hydrylic and helped when ruff water shows up, also put drew marine sidewinders for the chime walk, it is gone and i am running close to 80 gps
fastscarab22 is offline  
Old 12-14-2007, 12:53 PM
  #5  
Registered
Thread Starter
 
Join Date: Sep 2006
Location: Toronto, ON
Posts: 595
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks guys.

Prostreeter, whether or not this is a big water boat, it's what I've got and I've got to get it to run the best I can in the water we've got - otherwise it'll be on the lift on the rough days and nobody wants that! -heh.

But I agree, this isn't a 36 footer after all.

Thanks for all the help so far, much appreciated.
freshwaterfiend is offline  
Old 12-14-2007, 12:56 PM
  #6  
Registered
Thread Starter
 
Join Date: Sep 2006
Location: Toronto, ON
Posts: 595
Likes: 0
Received 0 Likes on 0 Posts
Default

Oh and Fastscarab, the boat already has hydraulic steering but thank you for your suggestion.
freshwaterfiend is offline  
Old 12-14-2007, 01:04 PM
  #7  
Banned
 
Join Date: Sep 2007
Location: Frankfort,ill
Posts: 12,861
Likes: 0
Received 2 Likes on 2 Posts
Default

I have a set of 280Ks with 30 hours ,pumps, lines if you need em 1000.00 for everything
Attached Thumbnails Need trim tab help and recommendations-ebay-133.jpg  
RunninHotRacing163.1 is offline  
Old 12-17-2007, 10:23 AM
  #8  
Registered
 
Revelocity's Avatar
 
Join Date: Feb 2001
Location: Warwick, MD USA
Posts: 675
Received 38 Likes on 29 Posts
Default

I run the Eddie Marine branded version of the Dana LT's on my 22' Velocity. They work very well and are probably overkill for the boat.
Revelocity is offline  
Old 12-17-2007, 12:44 PM
  #9  
Registered
 
sleeper_dave's Avatar
 
Join Date: Apr 2005
Posts: 725
Likes: 0
Received 0 Likes on 0 Posts
Default

Those look like nice tabs, i'm sure they'll do the trick.

I have the dual ram bennett's on my boat, and I had larger custom tabs made using the same pump and actuators. Made a world of difference.

Running a bit of tab really helps smooth out the ride on my boat when it's a bit choppy out.
sleeper_dave is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
26sonic
General Boating Discussion
0
04-30-2008 03:08 PM
cloudmaster_321
Eliminator
12
04-28-2008 08:17 PM
26sonic
Sonic
8
05-12-2006 09:23 PM
Python82
General Boating Discussion
16
03-14-2006 06:08 PM
Monty
General Q & A
6
05-16-2005 01:24 PM

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 On
Pingbacks are On
Refbacks are On



Quick Reply: Need trim tab help and recommendations


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.