Model Boat Mayhem

The Shipyard ( Dry Dock ): Builds & Questions => Pleasure boats, Sports, Race, Power and Leisure Boats: => Topic started by: tica on October 08, 2017, 04:43:36 pm

Title: NQD Jet Boat modification
Post by: tica on October 08, 2017, 04:43:36 pm
Treated my self with a new toy for my birthday in July.

A NQD Tear into jet boat.

Ripped all that crappy electronics out including the Jet-drive.

Bought in some new stuff for it.
2S 2200mAh Lipo battery
3S 2200mAh Lipo battery
 Motor BL Turnigy 3800KV 2627
ESC skywalker 40A

I intended to do a before video but the performance were so bad that I skipped it.


(http://www.skalamodelskibe.dk/forum/attachments/nqd_jet_2.jpg)

Chop shop
(http://www.skalamodelskibe.dk/forum/attachments/nqd_jet_5.jpg)

(http://www.skalamodelskibe.dk/forum/attachments/nqd_jet_9.jpg)

New and old motor
(http://www.skalamodelskibe.dk/forum/attachments/nqd_jet_12.jpg)

Jet drive in
(http://www.skalamodelskibe.dk/forum/attachments/nqd_jet_13.jpg)

Used the bracket from the old "servo" as fixingpoint for the new one.
(http://www.skalamodelskibe.dk/forum/attachments/nqd_jet_17.jpg)

Ready for the first test
(http://www.skalamodelskibe.dk/forum/attachments/nqd_jet_21.jpg)

First it was tested with 2S and it runs nice and stable, one need to adjust the rudder to 40% or it is totally non-controllable.

Video with 2S https://www.youtube.com/watch?v=rIzBSnTaxtA&feature=youtu.be (https://www.youtube.com/watch?v=rIzBSnTaxtA&feature=youtu.be)

When using 3S it screams over the water and is a nuisance to all other boaters on the lake. But hey what a acceleration.  And sorry no video.

So all in all a quick project with a lot of fun, it took approx. 3 hours to do the modification.
Title: Re: NQD Jet Boat modification
Post by: Davo on October 09, 2017, 04:41:38 pm
Fantastic performer. Can you add a picture of what happened to the drive system at the transom end? Is it a surface piercing prop perhaps?
David
Title: Re: NQD Jet Boat modification
Post by: TomHugill on October 09, 2017, 04:59:27 pm
Quote from: Davo on October 09, 2017, 04:41:38 pm
Fantastic performer. Can you add a picture of what happened to the drive system at the transom end? Is it a surface piercing prop perhaps?
David


Small bore jet drive, I think 19mm
Title: Re: NQD Jet Boat modification
Post by: tica on October 09, 2017, 06:49:35 pm
It is a waterjet drive and comes with the boat.

(http://skalamodelskibe.dk/forum/attachments/nqd_jet_28.jpg)
Title: Re: NQD Jet Boat modification
Post by: Davo on October 09, 2017, 08:48:47 pm
Looks great. I read the initial posting and thought the jet drive had been removed. It might make an excellent power unit for a scratch build project.  However, I guess there is possibly no reverse.
The boat looks like great fun with impeccable handling.
David
Title: Re: NQD Jet Boat modification
Post by: tica on November 14, 2017, 05:10:53 pm
Hi Dave

I can see that it is not clear that I did reuse the jet-drive. But it has to come out so the motor can be changed.

Yes it is a strong drive and can easily be used in other builds, the set is available on the internet incl. brushed motor for a low amount, but be careful not to by direct from HK as i may cost a fortune in customs and tax (at least it do that in Denmark).

BR
Carsten