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rockers
Hey Daren,
The "s" at the back is really not at the back but more critical to be placed under the drivers center of gravity and Dave Rawson (Canada) taught me the formula and I have it written down somewhere for the required speed, weight and lift to raise the boat parallel to the water.
picture a straight line along the bottom from the aft (transom) as you move foward to the first rib would rise from 0 to 1/8" then to the next rib rise a 1/4" then to the next rib back to 1/8" and then to the next rib zero. drivers size weight and speed depends on where you start and finish it. This works but the key when Tim did this in his boats was the long decreasing deck line and the afterlanes to help draw the boat upwards when the proper calculations were met.
I hope this explains more. It may be more of a relief then an "s" but I refer to it as that. I do not use rockers in my boats espescially at the back, I feel it gives a false reading in our setups unless you know it's there.
I think that if we had 6' long angle checker then a rocker would be fine as you could setup more to the angle of the dead-rise and create the proper angle of attack to the deadrise.
I could be wrong but when I was reading the book that Ron Collins received with his entrop the deadrise was much further back in the boat and the torpedo tube was aligned perfectly with the deadrise angle which when measure would equate to about a 2.5" kicked in.
Regards,
Regards,
Hey Daren,
The "s" at the back is really not at the back but more critical to be placed under the drivers center of gravity and Dave Rawson (Canada) taught me the formula and I have it written down somewhere for the required speed, weight and lift to raise the boat parallel to the water.
picture a straight line along the bottom from the aft (transom) as you move foward to the first rib would rise from 0 to 1/8" then to the next rib rise a 1/4" then to the next rib back to 1/8" and then to the next rib zero. drivers size weight and speed depends on where you start and finish it. This works but the key when Tim did this in his boats was the long decreasing deck line and the afterlanes to help draw the boat upwards when the proper calculations were met.
I hope this explains more. It may be more of a relief then an "s" but I refer to it as that. I do not use rockers in my boats espescially at the back, I feel it gives a false reading in our setups unless you know it's there.
I think that if we had 6' long angle checker then a rocker would be fine as you could setup more to the angle of the dead-rise and create the proper angle of attack to the deadrise.
I could be wrong but when I was reading the book that Ron Collins received with his entrop the deadrise was much further back in the boat and the torpedo tube was aligned perfectly with the deadrise angle which when measure would equate to about a 2.5" kicked in.
Regards,
Regards,
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