This jet boat drive is hand finished and precision CNC machined from billet alloy and comes complete with impeller system and vector thrust system. A powerful and exciting way to power bigger R/C boats.
What is the thrust generated at what rpm? graph available? What engine/power rating is this jet drive capable of handling? 2 to 10 hp? What about low speed thrust? Any reversing buckets available?
What kind of main bearings sealing is used..... time between overhauls. Continuous runtime limits?
doing a custom 1/8 scale hydroplane with duel waterjet looking at hobby king,mhz and graupner#5 witch is a lot cheaper than hobby king and mhz. with 49mm impeller but im a little worried about max rpm.
Please supply a proper dimensional drawing for the jet drive. Fotos with dimensions drawn in are nice, but not all.
A few dimensions you have totally forgotten are:
Total height of the jet-pump
Height of shaft above intake-flange
Thickness of pump-flange
Thickness of counter-flange
And many more.
All these dimensions are required to make a feasability-study for a project and to plan the project well in advance before money is spent wrongly.
Modellers aren´*t fools and buy toys, but they want to buy machines and want to do intelligent planning.
Have just recievied my jetpump. Would have given it 5 stars but there is no instruction sheet that should have an exploded view with all relevant parts & number. The unit is very well made and looks more impressive than the picture posted of it. Perfectly finnished and spins over smoothly by hand. All parts fit and move together very well. Highly rate this item. Well worth the long wait for it. Hope parts will be available. Need spare impellor & stator for any misshaps. Well done HK. A fine bit of CNC work.
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Received mine too, the finish is ok. The strengh of the hull is 2mm aluminium. The scews on the bottomplate are still not countersunk, but you can easily make them. Sadly the hull is not 100pcnt waterproof, you have to disasseble the jetdrive and make some sealing. But still, the overall quality of the drive is ok, but for the price I expected more.
here some pics of the drive and www.link
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have received 1 of the 2 pump i've ordered, very impressive looking unit still constructing hull, so I can't check for leaks yet, impeller spins freely, as mentioned by someone else the screws conecting the grate to the pump would have been better if they we're countersunk, but that can be overcome. overall a very good unit (just got to get my hands on the other one).
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I have 2 of these pumps.... one of them is for sale if you cant wait for stock to come back in.
untouched in box ! ..... have no need for the 2nd one as my twin project is no more.
$260 US shipping ?
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It arrived after paying the douane in the Netherlands .
When i opened the box , i was a little bit dissapointed .
There was a gap between the 2 halves of the JET .
Near the bearings the gap was more than 1mm .
I measered the gap and took a knife and sissers and made a gasget 0,6mm thick .
I sealed it with silicon and so it fits and seals perfect .
Bearings are now good in place .
I will use the JET with a geared 49cc .
15000 rpm on the jet 10000rpm on the motor .
Motor is a tuned pocket-bike (gag ) engine 49cc .