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Are those TPU? Something to ponder. One might print those in white. Reason is when the boat dumps over and the box quickly cools from water contact is when a good "water resistant" seal is challenged. I kind of dig this.. Grim

YEP!.. and do not even THINK about sanding it out and trying paint it.. it will fish eye over the areas where the chunks are Grim

Bill was raised by his grandmother not far from the Indianapolis motor speedway. He loved that race and was large part of his love for motor sports.. He would talk about his football career and how when he was training he would try to pick gofers out of the holes in the field by his house. (LOL)...

PLA's will continue to absorb water (hence they need not be recycled) and just for instance. A PLA printed object submerged in water will start to fall apart in as little as 5-7 days. They become brittle and break. I suspect you have see this on a older spool. The design looks sturdy and well...

good golly I hope those are ABS.. AT A MINIMUM.. In my experiences there is ZERO percent chance I am putting 10K worth of boats on 3D printed parts.. I SO HOPE YOU PROVE ME WRONG! Grim

Would make my day.. I have buried myself in projects I cannot get out of. TRUST me when I say. I miss all you boat nuts! Have a great race! Grim

Good luck to all the RACERS! Grim

Kris, Pinch test the low speed.. there are a bunch of videos on that out there. (it will get you close) Over last number of years I have been using the OS#8 plug in the motor.. (wont be switching anytime soon!) Grim

I have ran 50MPH with or without.. but Alex is right.. go ahead and remove the shim if its in the motor. Grim

Good note Jerry, (hope you are well) The first time I saw Steve's scale run I was like.. "I just saw something special". Man that guy can tune a boat! Grim

Bill, 50 to 60 is fine... (18 or more percent oil, based on viscosity) I like a 1440, back cut 17 deg and set to 2.9 cup... BUT.. your boat will tell you what you want. The Grimracer 40x52/3 also works quite well. I use Grimracer Speed Grease after 5 rounds and just run the extra pressure tap...

looking good Doug!

Bill, the race we are talking about is the IMPBAs 75th anniversary Internats. The race is in October (Huntsville Al) I am hoping to race 5 boats. B Sport Tunnel B Mod Tunnel B Hydro B Sport Hydro (Sport 20) D Sport Hydro (Sport 40)

and its ready for primer.. AGAIN.. broke out one of the mounting holes for the NACA duct. (gota fix that) I had to ORDER 180 grit wet dry.. yes.. had to ORDER IT.. I could not find it anyplace around. I must live in a bubble! CRIPES

THANK YOU RICK! My first Internats (the 50th) was in 99.. that very pond.. looking forward to the 75th! LETS RACE GANG! Grim

Rick.. I dont know the running order BUT I DO KNOW THE FINISHING ORDER!!!!!! BAZINGA! Grim

the 304 only has the external antenna.. (it is not a diversity RX) Grim

GO GET EM DUNNY!

somebody give him one.................

one of the most profound things I discovered while working on gas boats was to "curl the pull start cord" not pull with your shoulder. It take FAR less holding power to secure the boat as well as the speed of the pull it can some times be just one compression stroke and its running. If you are...