Strick where did you mount your bracket on your 20 sf... My bracket is 48 inches wide by 25in deep.. and also the sides of your brackets look to be about 10in high.. is that true..thanks for all the help

will measure tomorrow and let you know

strick

If you are 25 inches deep with the tub . . . do you have a 30" shaft motor?

Sorry on25" offset not deep.. 22 in deep..

Shaft is 20"

Hey Martin - uh oh . . . a 20" motor on a 22"/23" deep bracket will probably have some issues. Even if you get the bracket height just perfect. The bracket may block water from the prop (b/c it's an obstruction hanging 2" to 3" below the cavitation plate).

With a 22"/23" depth and a 25" shaft motor there is a little wiggle room to adjust the motor height up or down.

Understand.. I am going to buy an extntion kit for the lower...to25 inches..if i need to..so with my 25in setback .. I can bring the bracket 2 inches... Just trying to figure out how high i need to mount the bracket to transom.. On your smaller brackets what is the height of the sides of the bracket .. Looks likecto be about 8-10 inches. From the chine of the bracket to the top of swim platform

Martin, here's an earlier post I sent to Strick with some mounting measurements on my Hermco bracket. http://www.classicseacraft.com/commu...=24103&page=10 In general you want to mount the tub as low as possible to get maximum flotation. The top of the solid green paint (not bootstripe) in pictures in that other thread is 11 5/8" above bottom of flotation tub. Bottom picture below shows where my motor is currently mounted.

The AV plate on my motor is 3.5" above keel in attached pic. I've since raised motor another 1" from where it was in this picture, and it looks like it needs to come up another inch to get the AV plate out of the water when on plane. I'd guess that an AV plate height of somewhere around 5 to 5'5" above keel would be about right for my rig, but that's with a 30" setback. With a 24" setback, you'd probably want to start out with an AV plate height of around 4", but mount the motor so you could later raise it 1 or 2 holes. Hope this helps. Denny

Othanks denny yes I got it now... Thanks again for all your help... I know it was in the other posts.. but I tens to forget esp. After all the boat porn on here... Thanks again

the sides on the bracket that is mounted to the 20sf are about 11" deep. The sides on the bracket that is going on the 20 sceptre are 10.25" deep.

strick