RC JETBOAT BUILD - WAYYY better than a NQD (PROPLESSRC)

[@chrish5286]

Thing with jet drives, theres only so much power the pump can take before cavitation starts. So more power doesn't always mean more better, kinda have to find the sweet spot when performance stops its peak and starts to decrease. Also weight distribution is key, try moving the battery around, forward backward to stop the porpoising, but too much weight too far forward will make it unstable. Its a Balancing act! Cheers

[@kpopRC]

great advice!

[@69jonhill]

I was looking at vids about the Pro Boat Jetstream. You guys got there 4 years ahead.

[@kpopRC]

check out the new jetboat video on my channel. it's so much better than the new pro boat.

[@FarmerFpv]

Add a scoop in the intake grate, also you might not have enough weight in the boat. Run two of the same batteries in parallel one on each side same voltage but double the capacity that will keep it from porpoising. How do you not scoop will definitely help as well. Made a big difference on my jet ski.

[@topshelflifestyle01]

Hey u crook, u owe me $1000. U ripped me off of 2 boats.

[@jeffreybentz7097]

Looks like Shelby, the SwampMans boat👍. Good luck getting the ride tuned in

[@Garetschuurman7]

I love the aluminum boat look

[@MartinHMK]

1:01 this boat looks great!

[@robertrosson1990]

Need the intake lower in the water but you have to find the hulls sweet spot to be able to have the hull plain up on the water properly and still be able to keep the intake under water at the same time.Just watch out for gators LOL

[@jimmycreek]

you want the very back of the water to be in the water, this lets you "flick the boat".

[@jimmycreek]

I know this is an old video, but being a New Zealander I know a few things about jet boats, the air in the impeller is from it being revved to high causing small air pockets behind the impeller blade, once these get big enough the pump loses its prime and can damage the prop. This phenomenon can cause race boats jet drive units to damage the impeller from heavy oxidation and warping. the solution, bigger jet unit and lower rpm.

[@kenardtduplessis9409]

Whatt. I am from South Africa. Much love my dude

[@antonlammers1454]

Me too, was also pleasantly surprised

[@darrynwalker268]

snap, sweet like a lemon

[@frostyjays4057]

Since when do people from other parts of the world get stuff from our country 😂

[@Mattvokes]

Even me

[@MachoMandem]

Bruh I didn't know such existed here either, I wonder what other RC related stuff is made locally

[@timbr33]

cavitation is the word you were looking for ;)

[@shannonoshea644]

Really love the channel man it's always a good idea to watercool boats as they are under much more load than cars and usually have sealed hulls but at least your not doing what i seen on the creative channel and using flexible pvc tube hot glued to the motor haha would love to see more boat content. And just make sure that no cooling lines are kinked and periodically check that water is coming out

[@GreenGeckoLegoTechnicWorkshop]

Awesome build

[@debadyutidasgupta3897]

Hi guys check out this rc boat kzbin.info/www/bejne/rZm3l3iJps-FZqM

[@sirchirpalot]

Looks like a good hull. I have had NQD's and i have a RiverJet,

[@ricksscalerc2222]

Super cool,looks like a blast! might have to get me a winter boat project..nice job👍👍👍

[@jamesdodd7404]

try moving your battery back and fourth to see how it would plane out a little better. looked to me like it needed a little weight up towards front.

[@jamiegreen5610]

South Africa 🇿🇦 represent

[@frostlynreyes]

This is pretty damn aight I might make my own Custom RC as well. Taking the time to make it though

[@Blinkman24]

I ride freeride jet skis. And we usually add an extended ride plate. Or maybe some trim tabs? Little weight in front i dig it i want to build one!

[@artofdisguy3401]

Like all boats in scale the hulls seem more bouyant, I've got a 36" flat bottom with dual Graupner drives, I use a small set of kitchen scales(2) to balance the boat, had to use a couple grams of self adhesive wheel weights to achieve a great running balance. To much battery power doesn't work on boats, back of the voltage to stop cavitation

[@kpopRC]

great info dude. much appreciated! i'll do all of those things.

[@D3moknight]

Have you tried a Streamline RC Thrasher? I have one, and they are ridiculously good. Very durable, quick, and handle really well.

[@kpopRC]

yeah. but. they're 600 dollars not including batteries. so. it's just a bit too much for me. I'd rather spend it on a few other projects.

[@D3moknight]

@@kpopRC I have been following your Abarth build. I didn't realize $600 was too much to spend for you on an RC. You have got to already have tons of batteries that you could throw into the Thrasher. Just giving a suggestion. The best two jet boats you can buy would either be a Thrasher or one of Youngster's jet boats.

[@MakeItRC]

Hull looks sick! Nice build and nice video. 👍

[@lupers311]

Awesome freakin video as always. Your videos is why I have started messing with RCs again.

[@f-16gaming96]

If you want a nice jet boat get a thrasher v2 its all waterproof electronics has an auto bilge pump using 2 or 4 axis to activate the pump and the v2 is all upgraded hull ti handle any water pretty much Overall awsome boat and really stable

[@kpopRC]

im not going to get it.. looks sweet. but 600 dollars?

[@AdventureTimeRC]

Great video i love jet boats allot of shallow creeks around where i live jet boats have saved me so many prop s sick boat👍👍💣🚤

[@helcat3567]

Love that little jet boat. It looks so cool as it goes. as far as the best set up I can't help but I will subscribe to your channel to see how it goes for you. From your new pal Helcat in Australia

[@heldlightning4389]

An intake grate that scoops and directs the water to the top of your impeller should help.

[@joshtonry4291]

This boat is sweet! Is there a link to purchase this boat?

[@jankiesudesh7627]

Hey bro I'm now starting up wit the rc world I'm building my own boat but I have no electronic what your advice

[@saintsfisherman]

I am going to build a boat from scratch and do not know where to get the best parts if they are not already attached to a boat. I am going to build a wooden boat that will be about 3 feet long. I do not need a very fast motor but I need the motor before I start building the boat. What is a good web site for buying parts and not boats that are ready out of the box?

[@NaturallyRC]

Great boat! Great video! Made me laugh too (not your fault eh) when the caption said, "to keep the pumper from sucking hair," which is theoretically possible if people regularly use the pond to bathe and shampoo. LOL. 👍👍 Liked and subbed.

[@YYCRCFabricationz]

Just found your channel but very groovy video! It's always wicked to see what other Builders are up to.

[@cadentilton8072]

I have a jet boat and it's got a custom ride plate over the intake that helps suck in water and prevents the pump from sucking air in

[@kpopRC]

oh yeah? Ride plate? i'll google it.

[@cadentilton8072]

@@kpopRC yeah it just goes underneath and scoops up the water

[@cadentilton8072]

Also mine is a full scale boat so I don't know if this works on rc boats

[@kpopRC]

great advice. and probably something i can easily 3dprint. so bonus! thanks man!

[@seklistangdronista1742]

wow, a nice boat...small but fast runner

[@fliboimoney]

Runs and looks good....lil more weight in front....

[@RCTanksTrucks247]

Nice stuff bro although you can get the Proboat Jet boat or the Thrasher aswell.

[@user-dz2jv4in5z]

RC Tanks & Trucks 24/7 The thrasher is like 700€ what the hell

[@thercproject9309]

is this filmed on the credit river?

[@Jakefrc]

Have a look at the thrasher jet boats man. I have one they're a blast!

[@kpopRC]

so pricey though. lol.

[@bobbylapointe2334]

Is there a self rightning system ? Or will you loose it, at the first river capsize ? Thanks

[@kpopRC]

i fill the hull with foam. if it capsizes, it's still floating. This isn't a self righting hull. It's built for a river. ankle deep.

[@MrVolksbeetle]

I wonder if you’re experiencing cavitation? Is there any way to lift the leading edge of the intake? I’m thinking something like a NACA duct.

[@kpopRC]

looking into this. Thanks for the advice. much appreciated!

[@mmelling4410]

No link for boat? Why wouldn't you include that?

[@atlas-x5717]

How big of a ride plate does it have? Could put a droop snoot on it.

[@Chris-zu8ve]

Droop Snoot? Like a grate that has section that sticks below hull level to get more hook up, like a jet ski rough water grate?

[@atlas-x5717]

Moparmechanic73 RC Maybe needs a ride plate below the jet drive. So it will pick up more water.

[@atlas-x5717]

Moparmechanic73 RC Go to Finnegans garage episode 97 KZbin.

[@ixlr8ez662]

take look at the thrasher v3 those are not cheap but they are the best rc jet boats on the market

[@rcguy825]

nice work my man

[@alexmagarey8566]

cavitation is the propeller creating a low pressure pocket to the point of the water boiling

[@johnathanmyers3794]

Yeah so i would put the weight just under the baxk of the wheel house maybe a pound and for the propeller the pitch is key for the less cavitation its about thrust of course i work as a commerical fisherman that drives a skiff and the differents in how many blades it jas along with the pitch play around with the pitch and see if you can get the keel of the boat a little deeper in the water and maybe a nosel on the output of the jet

[@thegooserider7245]

I reckon the battery up a bit further will get it to plane nice. And will you stop giving me ideas please. My missis is already giving me shit about how much junk I have lying around 🤣👍😂

[@ROTAXD]

Flying Solo move the jet nozzle up just a touch to trim the bow up. Batt is about right I think.

[@thegooserider7245]

ROTAXD . It’s one of the two for sure 👍

[@D3moknight]

If you want to improve the handling of your boat in the video, it looks like it needs the weight shift a little forward. This should get the nose down and stop the porpoising. When the bow bounces up and down, that is probably what is letting air under your hull and into the pump.

[@chromosometheif8659]

Try putting the battery in the front so it stops bobbing while driving

[@ROTAXD]

Chromosome theif the "bobbing" is called porpoising. That actuallu happens when a boat is just underpowered enough to almost get up on plane...but not quite. This can also happen if the boat isn't trimmed right. You're right on moving the battery...but I'd move it aft just a touch.

[@mechanicalking]

My jet ski does that around 60mph and its so annoying but when you put stuff up front it helps

[@Sackmatters]

ROTAXD false. It has nothing to do with being under Powered. It is strictly on the weight ratio and it’s because of the pitch of the jet nozzle.

[@MachoMandem]

But wouldnt that create more drag and lower its top speed? Since there would be a higher surface area in contact with the water?

[@lavachemist]

@@MachoMandem my understanding is that when the hull is on plane it rides on top of the water, like a smooth stone skimming across the surface, instead of using buoyancy to float. When the boat is not on plane, the water line is higher on the hull and efficiency is lost to drag since you're pushing through the water instead of riding on top of it.

[@solocao9339]

Your content is well produced, did you take any "special" classes.

[@kpopRC]

i am a video producer for a national broadcaster. i've been making tv shows for the better part of a decade. This is just a hobby. And is mainly the reason i have to take breaks with making content. Imagine working 40 hours a week to come home to edit another 20....

[@solocao9339]

@@kpopRC good God the stress, but it's a high paying job, right?

[@jamiefells3152]

Love your videos kpoprc you really should upload more

[@kpopRC]

im trying. these videos take a lot of work. it's not like a chronological vlog.

[@jamiefells3152]

@@kpopRC ok either way the vids are great

[@mikolaj0309]

Oh this boat is lit dude! I love this little bullet ;p here is ur 19th like ;) cannot wait to see more of ur sick👌🔥 vids

[@michaelferreira9192]

were did you get the motor and hardware for this and do you happen to have the link to get the boat too

[@kpopRC]

link for the boat is in the description. message him on fb. the motor esc and servo are from hobby king.

[@ferventheat]

Channel deserve more subz.👍

[@matthewcates2352]

You ought to check out the thrasher jet boat that rcsparks reviewed.

[@kpopRC]

600 dollar boat. vs 100 boat.

[@doug148877]

The new version 3 is seven hundy....

[@edwinrussell153]

seems like from what you have said about the air, that the boat needs to sit lower in the water

[@takoza5396]

how about buy a big (chinees) 3D printer print your own hull :-)

[@jotham123]

Yes.. See my video, to be released soon! kzbin.info/www/bejne/lYnZgYZ-lrhqr6c

[@delta7743]

@@jotham123 haha fancy seeing you here-Dylan

[@carbonarne675]

@@jotham123 i'll Check that

[@alexairconditioning1581]

I bought one of these I cant wait to get it

[@Bu5H84]

Whoooop Whoooop awesome seeing something from south africa on your channel, max love from cape Town south africa I love your scale as shit channel Kpop don't stop

[@laytonpratt]

You should do a fan boat.

[@seanaydo9703]

Each jet drive is has an operating range for RPM. If you exceed the RPM of the jetdrive it will cavitate and the drive will lose thrust. For Brushless motors on LiPo's, generally the formula = No. of cells x voltage per cell x Motor kV rating. In your Yellow NDQ vid it looked like you were using a 2040SL motor. If so it's a 4800kV brushless motor running on 3S LiPo's...So that would give you an approximate RPM of... 3 cells x 3.7V per cell x 4800kV = 53,280 RPM. There's very little chance that jet drive can handle that. in comparison, a KMB 28mm jet drive has an operating RPM range of 15,000-20,000 RPM. Ideally you would pair your motor and battery to match the RPM rating of your jet drive...or just stay well away from wot when operating.

[@mars7786]

What was the jet boat that rcsparks had that thing was cool

[@kpopRC]

thrasher boat. unfortunatly it's 600 bucks, and takes a 5s batt. so by the time you're in the water you're at 7bil;ls.

[@mars7786]

@@kpopRC o yup that's too much lol

[@danielandvictoriasmith936]

I build some pretty serious jet-boats….. wanna take a look

[@becca6791]

Were u git this boat

[@kpopRC]

facebook. propless rc. very affordable.

[@SkiFanatix]

Looks like CG is too far back, I'd play with the battery position. I run large scale gas boats and never had the best of luck with auto bailers, seem to always leak.

[@humblerc841]

c'mon 100k! i still have to finish my nqd build.

[@jamesmitchell811]

Who would dislike this video ?? lol 😂 sweet vidz bro 👌👌👌

[@kpopRC]

lots of people suck. Probably don't like the music. because they have some specific preference and think their music taste trumps all. so funny. Thanks for watching bro! I appreciate you!

[@hydroracer5514]

Move the battery to the front of the boat it’s got a lot of weight in the back so you wanna even the boat out

[@Gwarlack1]

Hey man, that's sick !!!

[@Gwarlack1]

By the way, I hope your feeling better. I do enjoy your videos.

[@WewuzKangz85]

What about the thrasher?

[@Mr2005BUSA]

Weight towards the front and an intake grate.

[@justiceforsethrichwwg1wga160]

The music is fucking intense! So intense!

[@mirocapin4759]

Wonderful boat, sell it to me! I have no ergonomic possibility to build my self😀

[@robertobuenrostro2781]

You need to adjust your trim tabs at the rear of the boat. 🛥

[@kpopRC]

if there were trim tabs. lol. i'll look into it! thanks for the advice.

[@garymurphy5133]

being a newb,whats a auto bailer?

[@racerrcrazy1133]

Awesome project,

[@constructor4425]

I remember 7 years ago when i got the tear into boat it was only $28 each on hobbytron i got 2 of them still. Lol

[@kpopRC]

they are my fave boat ever. i got nqd hull from gearbest unglued. and the plastic is so much thicker.... stay tuned... the "clever girl" build is coming!

[@shancyroesner9212]

New to the channel Eurobeat rc?

[@murkin518]

0:22 👍👍👍

[@stevecarlon5651]

Have a look at rcjetboataustralia.

[@TheMadore1]

BADASSSSSS!!! As always Kpop!!!

[@jansenhobbs2214]

Should have made the tube going straight out the top of the back make it look like a Yamaha

[@Foldingblade]

Only 14 likes..... But........but.....it's 15 now

[@fusiondensity3287]

Needs a wheelie bar🐴

[@redkman7]

There is a rc jet boat in Delaware for sell

[@netwright4083]

It is a jet boat, in real life these don't suck air, the model would be like stuffing 5,000 hp in a 20' jet boat. So it will cavitate when it bounces and gets gets air. So don't think this boat will be able to run flat out unless it is glass calm, but then again the whole idea of a jet is to be able to run shallow. Some real jet boats even can skip over shallows, snow, logs in the stream.

[@abdulwaheedouabihi5903]

anyone know what motor he used

[@oliverscorsim]

Biggest things I see are the out on the jet should be under the water line a bit while running I think a hair foward on the weight but making an outlet for it that gets the water under that line and some anti porpusing fins and your all good should rip. Don't know anything about rc boats just real ones

[@streetsweaper5618]

Oliver Scorsim trim tabs ?

[@ma19921992]

Build video?

[@f-16gaming96]

No problem its just an idea

[@colewilson2938]

How u get the hull

[@kpopRC]

in the description.

[@colewilson2938]

@@kpopRC I like it

[@colewilson2938]

@@kpopRC thanks

[@clubsport9334]

Sooo intense.

[@412vw6]

i need dis boat en mai lyf

[@kylevlogsandactivities7209]

I live in South Africa

[@joshgreaves9934]

SIIIIICK!!!!!! 👍🏿👍🏿👍🏿

[@brenden8783]

Check out rcjetboat australia.com.au they also make some pretty mad looking hulls.

[@ROTAXD]

Yes, you can over rev a jet pump. Once it starts to cavitate, rpm will skyrocket and you'll lose speed. One of the best jet pumps currently on the market is actually made by hobby king. hobbyking.com/en_us/40mm-jetpump.html?___store=en_us

[@kpopRC]

good to know. that pumper is MASSIVE.

[@chrisscott3039]

👍

[@jonathanyates8826]

Hey i am from south africa 😂🤣dope we make rc net boats here

[@jimmyhooper6738]

keep the weight in the ass, but also keep the COG low! take it from some one who has made their own 3m jet boat powerd by a 700cc jetski engine! too much weight in the front no good also you dont want the dead rise to be too sharp!

[@kpopRC]

You think a shoe to push the water up into the pumper will help?

[@jimmyhooper6738]

@@kpopRC possibly but you could also be leaving ya self open to snagging it in the shallow waters try a more open grill if it doesn't have one already or custom make a scoop grill to direct the water right to the pump like the jet ski grates here in this link www.impellers.com/jet-ski-intake-grate.html. fire up that 3d printer and make a few grate's and try em out mate, good luck :)

[@ROTAXD]

Jimmy Hooper maybe aim the jet nozzle up a degree or to to get her up on plane.

[@twxedge5615]

Less zoom would be nice 👍🏼

[@kpopRC]

never.