1/6 Scale Drag Boats

[RandyatBBY]

That is a work of art. Will this be running in legg lake anytime soon, I will have to come watch. I hate to ask such a stupid question but: how fast do you plan to go? over 140mph?

This one is not mine. I am dialing it in for a customer. I do not plan to make it run it max speed. I hope for some where between 60MPH and 90MPH. After I have leak checked it and ran on 4S then 5S then 6S I will know how the cheap ESC will hold up. This boat will go to a friend in Livermore for hydra dipping.

[Moonie]

Wow it came out nice!! I like the Vary realistic look.

[RandyatBBY]

Wow it came out nice!! I like the Vary realistic look.

I love these two pictures side by side
in water nitrochondriac.jpgfirst boat in water.jpg

[RandyatBBY]

another angle[ATTACH=CONFIG]164227[/ATTACH]

Did you get a run at the drags?

[GoFastNow]

No I did not make it out to the Drags yet, boat is just not ready. I drove it again, this time with 45mm high pitch props, and then it broke the u-joint between the motor and W-drive. Back to drawing board.

20190317_092427.jpg

[GoFastNow]

So, now I have another u-joint, seems much stronger than the chrome one. Another trip to the machine shop, and we are back in business....I hope.

20190330_121422.jpg

[srislash]

No I did not make it out to the Drags yet, boat is just not ready. I drove it again, this time with 45mm high pitch props, and then it broke the u-joint between the motor and W-drive. Back to drawing board.

[ATTACH=CONFIG]164508[/ATTACH]

Yikes

[drwayne]

10396330_655886544497763_1328754546_n.jpg
asset.php(2).jpg

asset.php.jpg

I use universal joints from cortis, in usa somewhere lol
Never failed.

[properchopper]

scroll to post #6

https://www.intlwaters.com/threads/u-joint-for-solid-shaft.76501/

[RandyatBBY]

I call em Dog bones. work great!

[GoFastNow]

Suggestions appreciated, as I was not aware of these options. I received my pair of 48mm 3-blade props from Oxidean, bolted them on and went to the lake today. I first wanted to try the (swordfish 300) timing on "soft start", with motor timing at "medium" in hopes that I could go full throttle from a dead stop. All good till about 30 feet out then it starts to carry the nose little, under control I think, but accelerating so hard I cant see if it going to be ok to stay full throttle. So, change timing to "standard start" and motor timing at "20". This time, control the "launch" with my finger and get to FT as soon as possible, it covered probably 250 feet in distance under power, then another 250 feet to come to a stop. As long as the boat is up on plane, there is no steering, so aim correctly, its SCARY fast, at least to me, my guess is above 80mph already, u-joint looks good, and I can raise the timing still, on the timing scale of 0-30, I am at 20. I have a Garmin gps coming this week, then I can see how fast its going. For some reason, my esc says error when I download the data, so I am flying kinda blind right now. I am curious to see how much load is on the esc, I know it takes some power to spin the W-drive, plus two huge props. So much to learn, I hope it dont crash along the way. I want to run it a few more times, then over to paint and graphics.

[GoFastNow]

With the scale motor on it, it barely floats.
twins.jpg

[GoFastNow]

first pic, shot from my drone, it was 76 mph.
boat pic1.jpg

[srislash]

first pic, shot from my drone, it was 76 mph.
[ATTACH=CONFIG]165035[/ATTACH]

Did you get it to launch well?

[30nitro]

Oh man.....whata great shot..!!! Love the spray...and the way she looks runnin...!! Awesome job on that hull....