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Center of gravity?

Old 09-19-2022 | 08:07 PM
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Makes great sense and thought that must be part of it.



Originally Posted by Unlimited jd
brings the rotational mass closer to the centerline of the boat and lower, the propulsion closer to the center, and as you know my drive prop shaft is 1.5” above the bottom. (1” with the spacers installed) If we did nothing but move the drives out 4” on the same horizontal plane, they would be at least 1” below the bottom in that relative line.
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Old 09-19-2022 | 09:17 PM
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All the steps are doing at that point are packing air! LOL
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Old 09-20-2022 | 05:27 AM
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That thing is singin!

Originally Posted by Keith Atlanta
All the steps are doing at that point are packing air! LOL
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Old 09-20-2022 | 07:26 AM
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Originally Posted by dvr4hire
For my experiences in the bilge, the best reason for staggered setup is the relative ease of serviceability!!
Drv4hire,

That can't be an unwelcome bonus. I can't imagine changing the plugs in a side-by-side twin set-up.

Thanks. Brad.
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Old 09-20-2022 | 07:36 AM
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Originally Posted by Keith Atlanta
All the steps are doing at that point are packing air! LOL
Keith,

The steps did their job at a much lower speed, allowing for higher pitch props when the hull was seeing a lot more wetted surface.

Thanks. Brad.
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Old 09-20-2022 | 08:23 AM
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Look up "ben perfected" i think cg is approx 35% forward of the transom. They had the boat fully fueled, both drivers and picked it up on 1 sling at lake x to determine that.
ben perfected is a 30 panther B class boat that holds a world record of 104, haven't seen sprague on here in a long while.

alot of info on how it was set up with the how and why's.
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Old 09-20-2022 | 08:24 AM
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Originally Posted by Twin O/B Sonic
Makes great sense and thought that must be part of it.
I think it makes the boats rotational inertia along the length greater. This should prevent the boat from making big attitude changes when hitting waves (it will stay flatter)
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Old 09-20-2022 | 08:29 AM
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Originally Posted by outonsafari
Look up "ben perfected" i think cg is approx 35% forward of the transom. They had the boat fully fueled, both drivers and picked it up on 1 sling at lake x to determine that.
ben perfected is a 30 panther B class boat that holds a world record of 104, haven't seen sprague on here in a long while.

alot of info on how it was set up with the how and why's.
i was thinking you could put hard plastic sliders on your trailer bunks, then take one set of wheels off your trailer, load the boat back on the trailer. On flat ground slowly winch it forward until it “breaks over” and is balanced on one axle.
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Old 09-20-2022 | 08:33 AM
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Record Breaking Scarab Panther

What is the fastest panther

you'll have to dig but there is a thread on the set up and why
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Old 09-20-2022 | 08:52 AM
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PERFECT!

Finally the info icee been looking for.

Thank you sir!

Now I have some reading to do :-)


Originally Posted by outonsafari
Look up "ben perfected" i think cg is approx 35% forward of the transom. They had the boat fully fueled, both drivers and picked it up on 1 sling at lake x to determine that.
ben perfected is a 30 panther B class boat that holds a world record of 104, haven't seen sprague on here in a long while.

alot of info on how it was set up with the how and why's.
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