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11-25-2020, 08:50 AM #165000 RPM
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Hi!
Straight V no steps no pad Classical offshore race hull, fairly fast too
Cheeers, Toffen
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David liked this post
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11-25-2020, 09:53 AM #17The Historic Photo Master
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that works...
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XstreamVking liked this post
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11-25-2020, 09:57 AM #18
Why can't your have both a pad and steps. Fountain Powerboats have been doing it for years.
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11-25-2020, 10:09 AM #19
Like my pads. I have owned several STV and have always gone back to Allisons or Hydrostreams. Wouldn't know a stepped bottom if it bit me on the leg.
RockTeam Junk
No sparkling wiggles in here, only dump truck grinches.
"Screamin Heathen"
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keefallan liked this post
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11-25-2020, 02:30 PM #20
The easiest option is to as mentioned already just to convert the round bottom to a Vee and sharpen up the strakes so they dont look like they are fashioned from Plasticine.
However the question on my mine is why didn't the guys who designed the Sidewinder do this in the first place?
I know this round bottom Vee design was common in the 1970's.
Would a Vee conversion at 19 deg deadrise on a Sidewinder still chine walk? and being a relatively simple conversion one would expect that a few Sidewinders/Panthers would have been converted here in NZ where we love to tinker but Ive never seen one with a conversion.
They also tend Porpoise in hard turns which I suspect is due to the forward Chines.
The Strakes also curve in toward the keel at the bow so one of the first jobs will be to fill in the forward Strakes on the inside so they can be ground off and re-positioned from the outside once the Hull is flipped over.
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11-25-2020, 02:33 PM #21Team Member
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Did the Sidewinder bottom pre-date the invention of the pad? It pre dated V6 power, which increased the need for a pad
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11-25-2020, 03:30 PM #22
No it just was designed to go 45mph.
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XstreamVking thanked for this posttlwjkw, NZ Sidewinder liked this post
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11-25-2020, 03:50 PM #23Screaming And Flying!
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I run pad bottoms. Vents are ok but very tricky to get right. I concentrate on giving the hull adequate bow lift using the strakes without having to use much if any positive trim. That combo has always worked well for me. No porpoise and no china wok. Just a linear thrust with everything lined up.
83 V-King, 96 Mariner, 200 hp ff block 2.5 w/a 28p choppa
We gotta clean this liberal mess up, VOTE TRUMP TO MAGA!
Rebuild thread:
http://www.screamandfly.com/showthre...-it&highlight=
http://www.screamandfly.com/showthre...cs.&highlight=
Videos
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loop liked this post
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11-25-2020, 04:26 PM #24
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11-25-2020, 04:48 PM #25Scream And Fly VIP
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I'm just for a boat...........I dont care if its got steps, ladders, or stairs!!
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InjectorService, XstreamVking liked this post
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11-25-2020, 05:36 PM #26Screaming And Flying!
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HeeHee......I fell down some stairs.......missed my stepp......not going up a darn ladder............You know this.....Fly the boat......on the kissa......
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11-26-2020, 03:58 AM #27Screaming And Flying!
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11-26-2020, 08:46 AM #28
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Greg G liked this post
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11-27-2020, 11:41 PM #29
If I want to post a bit of a time line of photos as the job progresses, which part of the forum would best suit?
It may be of interest to some even for the humor factor.
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12-02-2020, 05:19 AM #305000 RPM
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I own a twin step 27ft Chaudron Race boat and a pad vee 22ft Speedcraft open boat. They run completely different to each other and the suitable driving style is completely different. My stepped hull likes to run level and 1/3 of the hull remains wet at all time at WOT (80mph) with a single 300 XS and does not like negative trim. My padded speedcraft runs much drier at WOT (95-100mph) with a 250XS with only a couple of feet in contact with the water. Cornering is also different. I need to trim negatively on the padded hull when cornering hard to grip well whilst my stepped hull prefers cornering with a slight positive trim and "skids" its way around a corner. Obviously this does not apply to all stepped bottoms and my stepped Chaudron weighs nearly double of my padded vee Speedcraft hull so not really fair to compare.
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Greg G thanked for this post
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