DIY Surf Plate NSS for 2005 SAN 210 TE Plus other Mods

[shredthegnar]

Did you ever get the system dialed in? Has anyone looked into using the tabs system like the Mastercraft gen 2 system.

[Lovenwlink]

Great job!
Thinking will try this for my 98 super sport any updates as far as plate sizes or shapes?
Thank you

[Zpenter]

Was wondering how the new plate worked

[theskunk]

I really want to try something similar to this, without drilling holes that can easily mount to the swim platform bracket. My only major concern is that the platform can't handle the extra amount of stress from having this hanging out the side.

I'm wondering if any of the scientific types can calculate exactly how much force is exacted against the tab, and more importantly, the platform bolts themselves.

[alexbailey228]

wow this is so awesome! I love how it doesn't have to drill into the boat. What are the chances of me talking you into building me one of these for $$

[rcazwillis]

oops, posted to wrong thread...

[Potsy89]

Hey dude, i have the same boat an put rev8's on. i had to lower the bimini 3-4". I'm 6'3", they lasted 1 trip then took them off. if you have a bimini that you use i would maybe try different tower speakers.

[SuperAirIan]

I really want to try something similar to this, without drilling holes that can easily mount to the swim platform bracket. My only major concern is that the platform can't handle the extra amount of stress from having this hanging out the side.

I'm wondering if any of the scientific types can calculate exactly how much force is exacted against the tab, and more importantly, the platform bolts themselves.

This is a very old thread...and I am certainly NOT a "Scientific" type...you'd be welcome to use a spreadsheet I put together to calculate the pressure if I could only figure out how to get an Excel Spreadsheet to post here.

Formula	Force = Apv^2
			Formula Units
	Force	Total Force Exerted	Newtons
	A	Surface Area of Plate	Square Meters
	p	Density of water @ xxF*	KGs/Cubic Meter
	v^2	Velocity of Water Squared	Meters/Second

The answer is in Newtons. One Newton is approximately 0.2248 Pounds-force.

For example...a plate with 33 square inches exposed to a perpendicular flow of water moving at 10 MPH that is at +70 degrees F is exposed to about 94 lbs of force...or about 2.8 PSI

[SuperAirIan]

Here is a more detailed result of a 33 square inch tab moving through water at various temps and speeds....

Water Temp		10 Mph	5 Mph	12 Mph	15 Mph	20 Mph	30 Mph	40 Mph
@40*F	Surf Plate Pressure	2.9	0.7	4.1	6.5	11.5	25.9	46.0	P.S.I.
	Total (1) Surf Plate Pressure	95	24	137	213	380	854	1,518	Pound-Force
@50*F	Surf Plate Pressure	2.9	0.7	4.1	6.4	11.5	25.8	45.8	P.S.I.
	Total (1) Surf Plate Pressure	95	24	136	213	378	851	1,512	Pound-Force
@60*F	Surf Plate Pressure	2.8	0.7	4.1	6.4	11.4	25.6	45.6	P.S.I.
	Total (1) Surf Plate Pressure	94	24	135	212	376	846	1,504	Pound-Force
@70*F	Surf Plate Pressure	2.8	0.7	4.1	6.4	11.3	25.5	45.4	P.S.I.
	Total (1) Surf Plate Pressure	94	23	135	210	374	842	1,497	Pound-Force
@80*F	Surf Plate Pressure	2.8	0.7	4.1	6.3	11.3	25.3	45.0	P.S.I.
	Total (1) Surf Plate Pressure	93	23	134	209	372	836	1,486	Pound-Force

[nukemustang]

Interesting to see there is really not that much pressure applied to the side of the boat at surfing speeds...

[theskunk]

Which is exactly why my design can use suction cups and still hang on appropriately

[jreed7374]

Could you take some pics of the brackets by themselves? Can see the outside really well - would like to see the inside a bit more clearly. Ant dimensions on them would be helpful as well. Awesome build.


Sent from my iPad using Tapatalk

[ohiowake2]

What is your plate made out of and how thick is it?

[Jholly87]

I built some surf tabs this past weekend and tried them out. I am completely a beginner at the whole surfing thing and quite honestly no clue what I'm doing, but want to get my '96 super sport surf able on port side. My tab sticks out about 2" on side and 1.5 on bottom. I have 2 750s in rear locker and 1 370 in ski locker. I had everything full except was only about 3/4 full on starboard locker. This was my first time trying to surf but I don't feel like I had a big enough wake. Think I need to make tabs slightly bigger and need more weight in front. I pretty well copied these guys idea. Don't have pictures of brackets mounted to boat because my runners on trailer stick out to far to test fit. I used jangelides method though with 4" angle behind swim platform bracket.

[Shaun san 210]

Thanks for the ideas I had a crack at it today