|
|
|
|
|
|
|
|
|
|
jet boat
Go to universe site which has a huge thread and the top gurus there and will take you all day to read it and are SUPER HELPFUL.
![]() |
|
Last edited by Mikedown; Mar 11, 2011 at 08:14 PM.
|
|
||
|
Quote:
I'm subscribed to the RCU one, but RCG has some good info too, its just that its scattered throughout many little threads. |
|
|
||
|
|
|
https://www.hobbyking.com/hobbyking/s...dProduct=15190
Maby this one fits you? I don't know how much room there is, and what max rpm that jet drive can manage. |
|
|
|
||
|
Quote:
|
|
|
||
|
|
|
Yea that kv motor on 2S should be fine, and there is lots of room in the hull because it is so wide. Plus with that motor you will be able to use the stock coupler which is nice. The ESC is the exact same one I'm using and it works great, although I'm running it on 3S.
That setup might not be the fastest, but it should be pretty reliable I think. *Edit* Be aware that you only need about 5mm or so of servo travel to move the jet nozzle to full left and full right, so you might have to turn your dual rates way down or drill a hole very close to the center of the control horn for that big servo. |
|
|
|
||
|
Quote:
I have a DX2s, so i can just program servo end points. Good to know! I just got the stock battery charged up, and am going to go run it in a little stream. May as well get some use out of it while i wait for upgrades to come in. ![]() |
|
|
||
|
|
|
4800kv on 2s is beyond what the drive is useful for. Small jet drives don't do much besides cavitate if you start spinning them more than 25000rpm. That motor on 2s would be over 35000rpm unloaded. I would aim for a motor in the 3200-3600kv range for 2s. I have a 3200kv outrunner in mine on 3s, and over 3/4 throttle is jut makes more noise without picking up any speed.
The servo is also overkill, I run mine on an HK 9g servo with no issues at all. |
|
|
|
||
|
Quote:
Ya, the servo is a little over kill, but I was recommended at RCU to go bigger servo than a mini. I'd rather overkill then under-kill. ![]() |
|
|
||
|
|||
|
Just uploaded a stock video. There was about 4 inches of slush, but still kind of cool. There are these great little pools on the surface of the ice caused by the snow melting. Would be fun to have a moded one in them. |
||
|
|||
|
||
|
Quote:
The issue isn't torque, it's the WOT rpm's are too fast for the small jet pump to handle. Going with a lower kv motor will give you just as much performance, and at the same time keep the heat and amp draw lower. You can run as big of a servo as you want, but I haven't had a single issue with a cheap 9g one. The only benefit to the bigger one is that it would add weight to the boat (they like to be a bit heavier to keep the intake in the water). If it were me, I would build it light then add stick on lead for ballast in key places though. |
|
|
||
Thread Tools | |
Similar Threads | |||||
Category | Thread | Thread Starter | Forum | Replies | Last Post |
Build Log | My NQD "Tear Into" build thread. | wparsons | Racing Boats - Electric | 69 | Feb 17, 2016 09:47 PM |
Wanted | Anyone have a NQD Tear into jet boat kicking around? | Energy | Boats (FS/W) | 3 | Mar 22, 2011 07:41 PM |
Discussion | Brushless NQD torn into jet boat | mortonj69 | Micro and Sub-Micro Boats | 3 | Feb 14, 2011 08:02 AM |
Discussion | Brushless NQD torn into jet boat | mortonj69 | Racing Boats - Electric | 3 | Oct 16, 2010 06:40 PM |
New Product | NQD Tear Into Jet Boats | rcnz | Dock Talk | 1 | Jul 14, 2010 06:48 PM |