For those of you running, or have run, 32"-33" Monos what was your total RTR weight with batts? The setup details don't matter just the weight.
Anyone and Everyone Chime in here
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Yeah I agree. More weight lessens the chance of chime walking increasing the speed as long as the weight is central. Instead of riding waves you cut through them!Everything that has a beginning, has an EndComment
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I've found if you keep the longitudinal CG as close to the centerline of the boat and as low as possible the Chine walking is minimized without adding weight. I.E. use one battery in the center instead of two batteries on each side. Newtons law - forevery action there's an equal and opposite reaction. More downward momentum (mass x velocity) on one side causes reaction on the other side or chine walking. reduce the amount of momentum (less mass x velocity) = less reaction on the opposite side. Does that make any sense?Comment
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...Does that make any sense?
For the rough windy conditions so common in Texas I add a pound of lead to my Titans. My latest is a full nitro layup and weighs almost 10 lbs. It runs mid-50s on 4S2P and wins District races.
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It's always a give and take. I do find my mono setup as I stated above tends to hop in the corners on rough waters, but in the straights I'm leaving everyone in my wake. Of course I'm running with a bunch of cat hulls which don't corner too fast anyhow. I guess it falls back to driver preference.Comment
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My P-Spec DF33 is at 6lbs 7oz
and my P-Spec Carbon Fiber OM29 is at 4lbs 2oz
my DF33 is now becoming my P-Mono racer because of the extra weight over my OM29...NAMBA20...Caterpillar UL-1, P-Spec OM29, P-Mono DF33, P-Spec JAE, Aussie 33" Hydro-LSH, Sprintcat CC2028 on 8s, PT SS45 Q Hydro, PS295 UL-1 power, OSE Brothers Outlaw QMono 4-sale, Rio 51z CC2028 on 8sComment
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Okay I am nearing completetion on my build and I weighed it in last night at 9lbs 6.6 oz with 9000 mah of batts. The batts weighed in at 3lbs 1.6oz leaving the boat it self at 6lbs 5oz. I'm not sure this thing is even gonna floatComment
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Darin and I were having this same conversation through emails about the triangle that is the bottom of the boat. Not the science. Just the gut feeling.
I think of the water to hull contact on each side of the keel as positive pressure points. If your going to run your boat high and dry it would need to be perfectly balanced left to right and also be nearly perfect aerodynamically so that even if it's completly out of the water it will fly straight and flat. Almost impossible with the equipment in the boat, turn fins, strakes, a bit of hook maybe in the bottom, a rudder off to one side. It's a lot of things to get perfect. So you need to compensate with positive pressure on each side of the keel. We do that by adjusting the strut height. How much pressure you need depends on the the boat. I don't have any math or science to back my thinking up. Just a feel thing.
I'm with Rummy on the weight too. I don't even consider it anymore. Except for spec sport. Might matter for OPC.Noisy personComment
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Darin and I were having this same conversation through emails about the triangle that is the bottom of the boat. Not the science. Just the gut feeling.
I think of the water to hull contact on each side of the keel as positive pressure points. If your going to run your boat high and dry it would need to be perfectly balanced left to right and also be nearly perfect aerodynamically so that even if it's completly out of the water it will fly straight and flat. Almost impossible with the equipment in the boat, turn fins, strakes, a bit of hook maybe in the bottom, a rudder off to one side. It's a lot of things to get perfect. So you need to compensate with positive pressure on each side of the keel. We do that by adjusting the strut height. How much pressure you need depends on the the boat. I don't have any math or science to back my thinking up. Just a feel thing.
I'm with Rummy on the weight too. I don't even consider it anymore. Except for spec sport. Might matter for OPC.Comment
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JIM
JIM MARCUM: NAMBA 777; EX? SoCal FE Racers Club; D-19; Official 2012 NAMBA FE Nationals Rescue Diver; Purple Heart Viet Nam Vet; Professional SCUBA/HOOKA Diver, KELCO, 1973-1978; BBA 1978, Magna Cum Laude; MBA 1980 w/honors; Retired DOD GS1102-12 Contract SpecialistComment
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