1/6 scale Jetsprint boats and 30mm Jet drives

[mickieb49]

Hi Guy's,
Not too sure if this is the correct area to post this thread but i have bbeen working on production of a 30mm Jet unit, it has a 30mm dia Alloy impeller, ABS body, Trimmable Nozzel. This is a Mixed flow jet and has a much better performance than the Graupners and KMB units out there.
I am looking at releasing the units within the next 6-8 weeks as i am now waiting for the injection molds to be completed, They will also have the availability of being transferred into a 2 stage unit with only an addiition of another set of impeller/ flow straightener and a connecting ring.
Also due to be released will be 2 types of hulls to suit the jet units , they will be a 1/6 scale 650mmm long jetsprint, and a 850mm long Marathon river race jetsprint hull, these hulls will be vacuum formed ABS, construction will have to be done by the purchaser, pictures of the huls will be a few weeks away, i have attached some 3d prints of the jet units so you get a look at them.
I haven't set the price in yet but thinking somewhere around the $130-150USD ea? Hulls will be around the $130USD Ea mark.
Regards al Mick

[Mike Caruso]

Mick,
So glad you are working on a pump. How efficient will to be? Will you be listing the thrust, motor used, ESC and batteries used in your testing? Can't wait for a good one that everyone can run.
Good luck.
Mike

[Basstronics]

Pump looks awesome. Price seems a bit high for ABS hulls?

[mickieb49]

Mick,
So glad you are working on a pump. How efficient will to be? Will you be listing the thrust, motor used, ESC and batteries used in your testing? Can't wait for a good one that everyone can run.
Good luck.
Mike

Hi Mike,
I'm not too sure how to measure the thrust, but i will certainly try my best to report on everything about them once they are ready. I was going to use a Leopard 4074 1600kv motor with a 120 amp esc on 4s lipo. These units have been a work in progress for over 10+ years and have only become a reality now. The performance will match the effeciency of the larger cousins of the Swashdrives and Jettecs, as it is a mixed flow pump with overlapping blades and the trimmable nozzel. I am doing a initial run of 1000 units.
As for the price on the hulls it isn't locked in concrete yet but you will get a Alloy rollcage, SS jetunit cover, and 2 prepainted drivers, So it isn't just the bare hulls, i will offer infused carbon hulls at a later date but that is dependant on the demand.
thanks for looking guy's, i will be updating this thread as the news becomes available
Regards Mick

[Basstronics]

OK now that sounds more like it!

I will be watching for updates. Always wanted a jet boat.

[srislash]

Mmm,good work on the jets. I had done a load of research in hopes of building my own many years back. Glad to see fruitition I imagine Mick . I shall be very interested as I love my NQD(bit small) and have a 28mm in a scratch built flatbottom( my avatar). I look forward to the release and pics.
I don't know if a 120 will quite be enough though you shouldn't see spikes so much with a jet it does take a greater steady load to maintain pressure. I've been meaning to put the ET on the NQD.

Great work,Shawn

[TheShaughnessy]

Looks awesome. My first boat was a jet drive but the hull was too big for the drive. I've been wanting to build my own drive for a while now but don't have the time, money or knowledge really. I'll be impatiently waiting for the test video.

[Mike Caruso]

One jet unit should be able to be tuned for many motor / battery combo's. Just like real jet pumps can work with 300 HP or 1200 HP and more engines by changing the impeller. Key is us RC guys we will be needing different impellers as one size does and will not fit all. Check out this guy who has lived with the real jet boat pumps and is a guru after many years http://hi-techperformance.com/ nose around in his tech stuff.
Great guy.
Mike

[mickieb49]

Hey Guy's,
Thanks for the feedback guy's, it is most appreciated, and i will sure to be loading the first testing video once i get the time .
Mike , at the moment i will only be releasing one impeller with it but i will be releasing different pitch ones at a later date, but for now i will be doing all the expensive research into motors and will report back with the best motor to suit this drive/impeller setup.
If you have any questions please ask away.
Regards Mick

[TheShaughnessy]

?
??

[mickieb49]

???
Not too sure if i follow you,
Jet units are still a little while off, the impellers will not be ready untill after the 25th so will not be able to put in an update untill after then, please remember i am making 350 jet units and about the same in boat hulls.
As i get some more updates i will sure to be updating here
regards Mick

[mickieb49]

Mike, the jet units have already been tested, the testing I have to do is with the hulls, that is why I have a 3d printer, the jet unit I have printed out is not a fully functional unit but is enough to prove the design, and I have been playing around with impeller/ flow straightener designs for the past 10 years.
I really do not want the customer to be scape goats and work out any issues, this is simply not good business.
On another hand I have also been playing around with designs for a race hovercraft, the intent is use really cheap electrics and race them on the tidal sand flats round where I live, but also to provide a inexpensive but good quality entry into hovercrafts. I am going to vacuum form the hulls out of ABS.
Warm regards Mick

[Mike Caruso]

Cool I had to go back and read that you have been playing with the jet pump for ten years.......Best Mike

[TheShaughnessy]

Is that the 25 th of this month? Got a hull I wana try a jet drive in, was thinking a 29 mm graupner at first but then I remembered these.

[mickieb49]

Hi Mate,
Yes that is the 25th of this month, but that is when the impellers will be finished being machined.
Got the first trial run parts of the jet units, got a few modifications to get done but it will not be very far off at all.
By the way, good luck getting a Graupner unit, as Graupner has folded and there will not be any more units or parts available soon. I will also have the hulls available soon, finished the bottom half of the mold, just got to do the top and the cowl then I will be making these in fiberglass , I will be supplying 3 different hulls, one that is about the 500mm long, 650mm long (Jetsprint hulls) and another that will be a Marathon river race jet boat 800mm long.
Here is a picture of the injected parts so far.jet unir.jpg
Warm regards Mick