Results 1 to 7 of 7
  1. #1

    GP 1200 Trim Tabs

    Ok i made some custom Carbon Fiber trim tabs for my ski. I noticed that it tends to get loose in the backend at speed. I am also planned to add a small skeg to the trailing edge of this tab. Any thought????? Right now they are roughed in and dry fit. Will do the final install this weekend and hope to get out and run it a bit if the weather holds out i will post the speed difference when i run the ski.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	IMAG0223.jpg 
Views:	106 
Size:	115.7 KB 
ID:	269873   Click image for larger version. 

Name:	IMAG0224.jpg 
Views:	92 
Size:	113.0 KB 
ID:	269874   Click image for larger version. 

Name:	IMAG0225.jpg 
Views:	101 
Size:	85.8 KB 
ID:	269875  

  2. #2
    Wow.. They are massive.. Verry interested to see what they do.. Good on yu!!

  3. #3
    I wanna go FAAAAASTer!! CDW78's Avatar
    Join Date
    Mar 2010
    yeah, let us know for sure. Might be interested in getting some made, if possible!

  4. #4

    Join Date
    Aug 2006
    Those are some serious trim tabs!! What year is your boat? On my 98 I just got ones that were the same as stock but not plastic. Seems like they did well at
    65ish mph.

  5. #5
    I have a 1997 GP1200. I got the idea from building fountain and Baja powerboats. They are similar to a concept called a rocker tab made by arneson. I don't know what they will do but i will let you know. I am getting them final installed this evening and hope to run tomorrow afternoon for a minute.

  6. #6

    Join Date
    Sep 2008
    Clarksburg, WV
    Are you using any kind of reinforcing plate on the inside of the hull or just relying on the hull. Seems like it may be alot of force torquing on the tabs. Also, this seems similar to the adjustable aluminum trim tabs

  7. #7
    Ok well the tabs worked well for giving the ski better ride in the water however they are just a bit too long and the outside corner of the tab is giving the ski too much hook in rough stuff and exiting corners. It does not skate at all in the back end. Top speed seems to be effected slightly and this is probably due to the length. I am going to take some off the side of the tab and shorted it by 1/2" and see how it works. Overall its solid and has no leaks. It also is running a backing plate in the boat for added reinforcement. I will keep you posted as to what i find with the modifications

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. F.S. Gp 1200 trim tabs
    By Bruce in forum Yamaha Classifieds
    Replies: 3
    Last Post: 05-19-2012, 03:29 AM
  2. 1997 gp 1200 trim tabs
    By 1997gper in forum Yamaha Old School Skis
    Replies: 4
    Last Post: 12-09-2011, 02:38 PM
  3. 97 gp 1200 trim tabs and other stuff
    By softail in forum Yamaha Old School Skis
    Replies: 2
    Last Post: 09-05-2011, 12:52 AM
  4. GP 800/1200 Trim Tabs
    By GP12Russ in forum eBay Finds
    Replies: 0
    Last Post: 01-14-2010, 10:19 AM
  5. 97 Yamaha GP 1200 trim tabs
    By explorer6764 in forum Yamaha Old School Skis
    Replies: 7
    Last Post: 11-26-2009, 04:07 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts