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Old Mar 05, 2013, 11:45 PM
Tommy
Joined Mar 2013
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NQD rc jet boat build

hey guys I decided to get in to this famous craze at the moment with the nqd jet boat now I just got some questions to be answered please answer as many as you can as all the help and or advice I cane get will be much appreciated.
1. whats the biggest water cooled brushless motor I can put in this
2. what is the best esc and turning servo I can put in it
3. the actual jet system is there a better setup for it ie copper propeller or metal grate to put on the bottom or ? :/

thank you for answering these questions also websites rc hobby shops or whatever names you got throw them at me I want to get this thing into the beach s I can do some jumps
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Old Mar 06, 2013, 11:00 AM
Boaters are nice people.
Sneek, Netherlands.
Joined May 2004
4,516 Posts
Hi Dale,

Welcome to the wet side!

Regarding your questions:
- 1) read the thread: http://www.rcgroups.com/forums/showthread.php?t=1404719
- 2) see 1)
- 3) see 1), any obstruction in the inlet slightly reduces the efficiency, for these small jets there are no brass impellors available.

Regards, Jan.
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Old Mar 06, 2013, 12:26 PM
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Vancouver, BC
Joined Aug 2009
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While I second Jan's suggestion that you read the thread, I will admit that there is sometimes a fair bit of random stuff to sort through in there to find the useful bits. That said, it is an entertaining read!

The basics in my opinion:

Ideal motor = 24mm or 28mm water cooled inrunner, 2800-3200kV on 3S 2200mah LiPo.
ESC: Turnigy Seaking 35A
Servo: Any 9g servo or larger, bonus points if it's waterproof.

Jet upgrades are not necessary, aside from maybe changing the stock plastic grate to some small metal rods. The plastic one works fine though until you break it.

Anyway, come on over to the main thread, we'll help you through the process.
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Old Mar 07, 2013, 09:17 AM
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Also check out the Tear Into forum on the RCU site http://www.rcuniverse.com/forum/m_7991409/tm.htm as the one here on RC Groups has turned into basically a chat room, and takes a lot of reading to find pertinent info.. A good powerful motor would be this 28mm water cooled brushless from HK http://www.hobbyking.com/hobbyking/s...rSearch=3900kv. You'll need a 3.17 to 2.3mm coupler. Any 60A water cooled esc will work as well as any full size servo, no need to spend a lot of money. You'll like the boat, it's a blast to run in rapids. I use expanded metal, like what some desktop organizers are made from (Wally World) as a grate to keep out the baddies, as the original grate (or stainless wire copies) still lets in small pebbles that will destroy the plastic impeller (get spares from ebay). Hope that helps!
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Old Mar 07, 2013, 02:43 PM
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Canada, ON, Markham
Joined Aug 2008
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I have a build thread from when I built mine as well, it's a couple years old though.
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Old Mar 09, 2013, 12:51 PM
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Joined Jul 2012
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Can someone link

Can someone link the good replacement propeller for this boat on ebay ?
I know someone you might be able to make them out of metal.
Regards
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Old Mar 10, 2013, 12:17 PM
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United States, MI, Macomb
Joined Nov 2006
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Hey Dale. Here's the ultimate!!

KMB Drive, with a Xk4042 2000kv Turnigy.

I have these drives available with the adapter plate.

This guy has all his motor numbers mixed up.

KMB Jet drive NQD jet sprint hull BL4024 2400kv River climbing (1 min 47 sec)
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Old Mar 10, 2013, 06:48 PM
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Quote:
Originally Posted by paultbg View Post
Can someone link the good replacement propeller for this boat on ebay ?
I know someone you might be able to make them out of metal.
Regards
Here's an impeller seller on ebay http://www.ebay.com/itm/NQD-757-6024...item3a7f1797f2

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