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boat discussion (3 replies and 1 comment)

jackwilliam
5 years ago
jackwilliam 5 years ago

i currently have a boat that is planted at 127 but can chine walk up into 128+ being careful.

the biggest thing for me was finding the right angle for the boat to be at, and i found that my creation likes it best at just over 5 on the jackplate and just a hair of down trim. im currently using a boat thats 21' 8" and has triples on it as well. whats the overall weight you guys are seeing as well as how the boat performs and how to squeeze every last mph from it.
dry weight: 700
total weight: 2490

im also curious as to how people are running 130+ mph and id like to know how its being done.
happy boating

nicholasfrancis
5 years ago
nicholasfrancis 5 years ago

Hi Jack,
Here is my top speed build. Best so far is 123.4MPH
I can obtain 119-120 without flipping but in order to get more i have to tap the trim up a notch,
thus making my boat flip...
Other specs not shown:
Triple 300s running on a 12' Jack Plate
Props are 44 Pitch!
The picture should give you a realistic idea of what i have created so far. She's "WIP!

http://www.speedboatsim.com/wp-content/uploads/2016/08/Use-this-one.jpg

If I'm not boating, i must be asleep!

jackwilliam
5 years ago

a couple things that ive done to my boat to make some speed increases are decrease the weight, but then decrease the rear deadrise to get more contact with the water, its also very important to "skim" the boat on the water as much as possible so you should probably bring the start position back from 10% to 0%. i know that for 3x300's i usually run a boat thats 21+ feet but thats just my preference on handling.

what i credit most of my boats speed is the way you set up the chines on the back, not only is it crucial to how the boat will or will not chine walk but if you set it up properly you can gain a few mph out of it.

if this doesnt help i will be posting pictures of my set up and you can go off of those specs and toy with what works for you, just remember trim and your jackplate are crucial

happy boating!

jackwilliam
5 years ago
jackwilliam 5 years ago

first

http://www.speedboatsim.com/wp-content/uploads/2015/08/steam-3x300s.png
jackwilliam
5 years ago
jackwilliam 5 years ago

second

http://www.speedboatsim.com/wp-content/uploads/2015/08/steam-3x300s-1.png