Looking for input about this video of surface drives
10-17-2016, 09:25 AM
#1
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Looking for input about this video of surface drives
https://www.youtube.com/watch?v=0AjoyE13YMI
apparently its a 42 fountain and unless I'm blind the hull never touches the water even at an apparent 50 mph, can someone explain to me what I am looking at? apparently hull design no longer matters? or is it just a notch?
apparently its a 42 fountain and unless I'm blind the hull never touches the water even at an apparent 50 mph, can someone explain to me what I am looking at? apparently hull design no longer matters? or is it just a notch?
Last edited by stimleck; 10-17-2016 at 02:51 PM.
10-17-2016, 09:36 AM
#2
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yes the camera is up in the notch on the transom, which puts it probably five or six inches out of the water any time its on plane. I like the telemetry and one know what kind that is?
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Throttles- Cleveland Construction 377 Talon
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Throttles- Cleveland Construction 377 Talon
08 OPA Class 1 National Champion
08 Class 1 Geico Triple Crown Champion
08 OPA High Points Champion
10 OPA Class 1 National Champion ( happy now Ed! )
10-17-2016, 10:39 AM
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10-17-2016, 03:05 PM
#5
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Is it typical for a surface drive to ride so high at such a low speed? With all the talk about speedmasters only being effective over 80mph I assumed thats was their approximate planing speed
10-17-2016, 03:14 PM
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It is not the gear case the determines the planing speed. It is the hull. Speedmasters are the preferred gearcase over 80 MPH due to them being able to be surfaced as in the video. That is when the "magic" happens!
10-17-2016, 05:34 PM
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A true surface drive is designed to be about 50% out of the water when the boat is on plane. My Kaama drives as soon as the boat crawls up on top of the water and level out the drives are running half submerged at 0% trim. I can of course trim them up and down and change the depth! Unlike a stern drive positive trim doesn't do much with a surface drive because you are basically pulling the prop out of the water!
I shot this video this summer. You can't see a whole lot but you can see the blades spinning and you can kinda see they are only half submerged!
https://youtu.be/X2JYRgf1uRc
I shot this video this summer. You can't see a whole lot but you can see the blades spinning and you can kinda see they are only half submerged!
https://youtu.be/X2JYRgf1uRc
10-17-2016, 06:54 PM
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