bracket

[zeke]

the bracket I,m looking at is a twin stainless that i,m planning on mounting a single 1995 150 oceanrunner.Will this be too much weight Or flotation,can this be done? also this guy has a console off of a 25 foot mako that fits the footprint perfectly{my hull didn,t have console} and a leaning post with 44 gallon livewell will this be too much?

[gofastsandman]

I`m running 35 gals and it HELPS the ride.

[doodlebug]

why not go fiberglass floation bracket you can get a single
bracket for about 850. from gause built down in tarpon springs
i have there twin bracket on my sceptre w/twin 250 mercs
works great if interested ill send you some pictures and get you a contact number.

[1bayouboy]

I didn't see the brackets on the Gause web page?? I'm curious as to the design and flotation amount. I just measured my Hermco twin bracket to get the flotation. The sides and ends slope a little going up so I just averaged the area. The bottom is V shaped and parallel with the keel. The bracket v up to the point where it's rectangular came out to 4.12 cubic feet which would be 263lbs. The rectangular area is 50x30 inches which came out to 0.86 cubic feet per inch of depth which is 55lbs per inch of depth it goes into the water beyond the V bottom. So if the bracket were mounted up 3 inches from the keel, and if the waterline was normally 18 inches up from the keel, then 5.5 inches of the rectangular section woul dbe in the water and that would be 5.5 x 55 = 302lbs. So that's approximately 560lbs of flotation.....so probably 420+ after taking out the weight of the bracket. It's all approximate....

Anybody know the design CG for 23ft hull.

[Bushwacker]

Anybody know the design CG for 23ft hull.

Moesly always put the center of the gas tank on the C/G so trim wouldn't change as you burn off fuel. (Pilots tend to be real fussy about stuff like that!) Not sure if Potter's designs were that sophisticated, but if your fuel tank is in original location, the center of the tank should be pretty close to the C/G.

I have a roller trailer with a rear cross-member supporting a gang of rollers that pivots when CG of boat moves aft of cross member when launching. Although the tension of winch cable on bow eye may affect it slightly, this "pivot point" on my Seafari seems to be pretty close to the center of fuel tank.

[zeke]

just found out the mako that the bracket came off of transom is 17 degree. will this work on my 71 20 sf?

[CaptLloyd]

The transom angle on the 20's should be 14 degrees.

If you mount that one, it will angle upwards, which IMO will look odd.

If you go with a bracket, get one with maximum floatation.

Good luck

Lloyd

[zeke]

can a 17 degree bracket be shimmed or can I alter my transom to accomodate it.Allready done the deal, aluminum trailer, bracket, and console for 2000.00.If not I guess I,ll try to sell bracket or trade.

[bkmoto786]

Just to let you know, the specification page in this website on the 20sf says the transom angle is 16 degrees. To find out for sure you can use a carpenter’s square and put the long side on the keel and then calculate the angles. I dont know much about brackets so you'll need to find out if 1 degree difference will cause any problems for you

[zeke]

are deadrise and transom angle the same thing