I done try one prop size 42,first run is 118km after cut d tongue I get 121km That amazing sir tq so helping good n nice vedioo.... ❤️❤️

thank you frank for your vids.. i think i have learned more from you and your bro than any other vids on you tube.. you guys rock

This is super useful, never dealt with metal boat props before, and this will save me some cash in the future, thanks ;)

Although detounging the prop is optional it makes a noticeable difference in performance, usually good for an extra 3 to 5mph. Detounging the prop gives you a little better pitch ratio as it removes the part of the prop with the least amount of pitch. It also takes some of the load off the motor allowing it to rev higher and faster. Also because of this you can usually run a slightly bigger prop. I went from the stock 40mm prop to a 42mm prop. All this equates to more performance

Very helpful video !

Great how to Frank and man that boat was going some ;-) nice one mate and thanks for sharing = thumbs up.

Great video! Very helpful

finally a good instructional video for sharpening boat props! brilliant job mate!

@DiehardRCaddicts Thank you for the feedback,so brushless is the way.

sure you have heard this lots before but thank you. im just starting to get into racing my rc boats and found this video very helpful. and people i can tell you it really does make a difference detounge Sharpen and Balance the prop. iv found my boat has gain a couple mph and best of all the motor is running cooler and i swear iv gained a minute or two of run time thank you very much

Nice video and especially highlighting the hazards of dealing with Beryllium. Beryllium dust is a carcinogen.

@spencermel it's definitely faster with the new prop. RC boats are a blast to run!!! I'm sure you would enjoy it!

Great video. Thank You!

@spencermel long before the electric stuff caught on I was into fuel powered cars and boats big time! They were a lot of fun and pretty easy to tune and modify. I got away from fuel and got into electric when brushless power systems started to come out. Fuel is great if you like long run times and can find a place to run where the noise won't matter. Electrics these days are as fast but run quieter and cleaner with shorter run times though. Cost between fuel and batteries are about the same.

that boat is fast! I'm gonna get one now.

I use a Great Planes finger tip prop balancing shaft i got from a local hobby shop. it works great on my magnetic balancer. I like that it is threaded and the two cone pieces are aluminum. If you can't get it locally search online.

@streetforcegp2 it's easy but can be time consuming. You just have to make sure when the blades stop spinning on the balancer they are both parallel to each other and level. Neither one should be rotating to the down position. You have to get it as close as possible during filling and sanding the prop blades. Then finish up balancing with some fine sanding emery cloth and water when in the polishing stage.

Hi Frank, Great video...i sharpened and balanced my first 440/2 blade octura last night...I am not sure why detouge is important...can you explain the difference between two of same props,but one is detouged and other one is'nt...thanks

Never made one from scratch but I'm sure someone out there has. I would suggest searching the rc boat forums and posting your questions there.

@RFTAEC100 It would make a noticeable difference, usually good for an extra 3 to 5mph. Detounging the prop gives you a little better pitch ratio and also takes some of the load off the motor allowing it to rev higher and faster. Also because of this you can usually run a slightly bigger prop. I went from the stock 40mm prop to a 42mm prop. All this equates to more performance. Frank

Just as a sharp knife cuts through things much easier than a dull knife. A sharp prop will slice through water much better and efficiently with less drag and more speed. It's all about performance!

chrissballer like you I'm always busy too. You know with videos, work, etc. It's not difficult to do but is very time consuming which is something I don't have a lot of. There are a few places you can have this done though. I know offshore electrics offers prop services on new props ordered from them. You can also find these services on the rc forums but you'll have to look for them. The other thing you could do is get one of the M series Octura props as they already have the tongue removed.

@roadstar499 leaving the tounge on the prop will give you a little more bit on the lower end of the throttle range but will limit top speed. Going up one size in prop diameter when detounging will make up for this and give you even more speed. If you saw my Black Jack 26 in the video, It was still running the stock power system and didn't seem to have a problem with cavitation.

@roadstar499 Detounging the prop makes a noticeable difference in performance, usually good for an extra 3 to 5mph. Detounging the prop gives you a little better pitch ratio as it removes the part of the prop with the least amount of pitch. It also takes some of the load off the motor allowing it to rev higher and faster. Also because of this you can usually run a slightly bigger prop. I went from the stock 40mm prop to a 42mm prop. All this equates to more performance

@JANCSI1978 the prop is an Octura X442 and is 42mm. There is a link in the video information bar to Offshore Electric web site. You can buy them there.

@dtmpowerboss the Octura x442 is a great all around prop for 36mm diameter motors between 1600kv to 2000 kv. You could also try the Octura x642 for a little more speed if your motor is rated over 1000watts of power. Its the same diameter only with more pitch.

Great Video! Thanks!

I don't run three bladed props on my boats, so never really had to balance one. They put more load on the motor than a two bladed prop of the same size and are more difficult to balance as you just mentioned. If you are going to balance one, you can tell when it is close when the prop comes to a subtle stop and does not rotate back in the opposite direction.

THANK U

Can you explain how you rigged up the file handle you use to hold the prop while you're working on it? I like that idea and would like to use one.

Thx for the helpful video! Where did you get the anodized cones for your balancer?

@DiehardRCaddicts Thanks frank... does it increase hole shot response also..? and any effect on cavation? thanks i will order that prop for my sv and surge crusher 42mm and detouge or get that prop you said is the same as 442/2 from octura already detouged...thanks a bunch for all your expert advice

@dtmpowerboss "offshoreelectric" online store has a large selection of props. They also have carbon props which cost a lot less than the metal ones and don't need to be sharpened or balanced. Again look for one around 42mm in diameter.

Nice vid

@toddawdirect that would be the Fuller's Fast Electric Catamaran Hardware. You can find their e-bay store if you search under "Fullers Fast Electric". Their products are awesome and they are always very helpful and quick about getting back to you. I'll send you a link.

what do you do when it flips over? I use a fishing line with tennis ball on the end but it takes forever.

You can start off course with about 400grit then finish up with somthing fine like 800 grit or higher depending on the finish you want. You can also use a buffing wheel if you really want to polish it. I usually go with a satin finish, just peronal preference.

what do you charge to shapen and balance a propeller if i prove one?

@DiehardRCaddicts are gas ones difficult to dial in?I mean,I like the electric but i would need like 5 batteries to get my fix.I know you're a electric guy.What do you think of the gas ones also.

I don't own the other two boats but if I had to guess which of the three is faster I would say the the Mystic as it has a higher kv rated motor which means more rpm and more prop speed.

Hey, Paul! I have a shockwave 36 completely stock, would this make a great difference in performance?

for the info Frank. I've sharpened my prop, but when I put it o a magnetic balancer and spin the prp, it stops at different pointson the prop. The osition that the prop rests at depends on its poition on the balancing shaft; I think that my balancing shaft is not acuall balanced itself. The sharp pont is not centered perhaps? Where can I get a better balancing shaft?

hey which prop do i need for spartan i got 1800kv motor 4 pole and 180 A esc let me know if you can help thanks

Thank you wery mutch !

Hello, is that line always the "same" on 1:20? I mean, is it better to get it like that, or it depends about the use/boat? Or it's all about hydrodynamics? your advices for an octura X445 on Deltaforce 1.07m 3500w brushless 2200Kv 6s And i have an X 467 stock. Thank you for your time; greetings, and very usefull video for us ;)

@DiehardRCaddicts

9 жыл бұрын

andre pires Yes, for high performance you want to remove that part of the prop.

I've been a machinist over 35 years, and a damn good one at that. I built my own sopercharger for RC nitro engines, and yet I would buy an Octura prop and spend the many hours needed to remove the tongue and sharpen and ballance it long before I would attempt to build my own. The geometry of a fuctional prop is the issue here, not building it. Let the folks that have done the research and have the facilities to investment cast them do that for you. Perhaps your parents can purchase online :/)

when you are balancing, do you remove material from both sides of the the heavy blade on the prop, or just the "top" side

The fuel sounds about right but check your manual to see what it recommends. You can buy ready to run props from offshoreelectric website.

what will the detounge do or add to the boat by doing this? Do all metal props need this, why is it done? Please reply! Thanks

@DiehardRCaddicts ok thanks a lot do u know where i can get thouse am looking for cheaper one

how do you go by balancing a 3blade prop? how do you know when its balanced? when any blade stop at any position?

@DiehardRCaddicts Thank u so much, Frank :P

Thanks Frank, I found one online for only $4.50 - will order it. Could you please tell me why is copper-beryllium such a common material for RC boat props? Can you tell me the differences between aluminium, copper-beryllium and stainless steel props? Is one material better than the others? I read on one website selling props that their aluminium propsare not suitable for brushless motors - but I can't see why.

can you explain how do you go by using the prop balancer? thnx

what hardware are you running on the blackjack?

how much does all of this stuff for it cost all together

hat mods have you made for handling?

Ok hear me out. Is there ANY way to make a propeller? The issue is that the only hobby shop around is like 30 miles away and I can't order one online cuz I'm only 13 I am not really experienced in rc boats but want to be I am experienced in rc trucksn cars. So is there any way to make a prop for my homemade speed boat?? Any help would be GREATLY appreciated.

thanks , When you make a pursuit boat video?

Thank you so much for the time you put into replying to my comment! That was very helpful! I have an Octura X442 metal prop and I would it to be sharpened, balanced, detounged, but I do not have the time nor do I the tools. Can I mail you my prop to do this for me and I will also pay you for the work done and include it in the envelope? -chrissballer

i will just buy another blade this is to musch trouble by the way when are u sopose to change your props

It's modeling clay. It's used to check the blades to make sure they are the same size and shape.

Why do you de-tongue the prop? Why do they make props with the tongues if they should be removed?

Usually that means your speed controller is over heating or the battery is out of power.

I wanted to know I have a 430 mm plastic prop and a 435 brass prop I want to cut it down and shape it to the small plastic prop Sizeto the plastic prop can I take the paper template over the small prop and in place on the brass prop and size it down

@DiehardRCaddicts

7 жыл бұрын

Not sure never tried that before. After thinking about it I'm don't think the cut down prop would perform the same as the plastic one. You would be changing the geometry of the pitch on the brass prop at the outer edge which could cause it to lift more or less. Only way to find out would be to try it.

Should I sharpen it first then balance the prop and which ever side is heavier just sharpen more to take material off?

Im just starting out and need some help, I just bought a miss bud with a 15 motor and a stock prop. Iv had nitro trucks and cars for 13 years. Im running 30% grimm fuel in it so maybe you would know if thats ok ?. Im running cold water threw the cooling lines while running on my stand, With 20% nitro the motor is running at 98 with 30% nitro its at 120 Also the prop thing, Is there 1 that i can buy thats good because i wouldnt even know were to start on sanding a prop. Thanks

Hello would you know why when I use full throttle it goes fast for about 10 seconds but then it slows down to idle even though I have the trigger full? Thanks

@toddawdirect look in the description; stock power system

You only really need to change a metal prop when it becomes damaged beyond repair or if you just want to experiment for better performance. Plastic props should be replace right away if they have any signs of damage.

ok thx!

please tell me the different between 2 and 3 blade propeller want is the different in performance .thanks

@DiehardRCaddicts

7 жыл бұрын

I've always run 2 bladed props so can't tell you much about three bladed ones. I'm sure you can search the RC forums to get the answers you are looking for.

@williamking95

7 жыл бұрын

inti gomez a 3 blade prop has less vibration and 4 blade less vibration. However a 2 blade is more efficient.

@intigomez2666

7 жыл бұрын

William King THANKS A LOT FOR THE ANSWER GREAT VIDEO

please read the comments below as these questions have been answered many times.

How much time on average to take a prop off the shelf to finished product? Think I would benefit any from doing my own vs.buying cnc props?/watch?v=uFiqhWfScmY

@DiehardRCaddicts

10 жыл бұрын

How much time is not an easy answer. The first time will take you what feels like forever but each time after that will go faster and easier as you learn your own techniques. It's definitely worth learning because it will help you figure out what makes props work better.

Hi, I am not speak english good but I hope to anderstand me, ok ,my qestioni is how diameter are the propeller of boat, because I order to HOBBYKING and I hope it's delivery to me in next weak because I want to change the original. Thank You !

' what material is better to use a RC boat propeller... metal or plastic... my 2 RC boats are plastic propellers

@DiehardRCaddicts

10 жыл бұрын

bestamerica Metal props are much stronger and will provide better performance because they do not flex or break like plastic props do. Plastic props are easier to use because they do not need to be polished or balanced. They are also a lot less expensive. I still prefer metal props over plastic especially for high power setups.

@bestamerica

10 жыл бұрын

okay thank explain. i like plastic propeller is better, more easily, light weight than metal

Yes, that's exactly how it should be done.

Will detounging the prop help fixing torque roll?

@DiehardRCaddicts

8 жыл бұрын

+Sick detounging the prop will not eliminate torque roll but might help just a little. Torque comes from the complete drive system, motor , prop shaft, and prop. Sometimes using a smaller prop helps, or offsetting the weight to one side of the boat to counter the torque roll. The only way I know to eliminate it completely is to run two motors setup with counter rotating props.

@sicklad3277

8 жыл бұрын

RCFF-DiehardRC Interesting you say that because i have done a fair bit of research on torque roll and all people can really tell me is its a prop issue? I'm no boat expert but im pretty sure the bigger the prop the more aggressive it will grab the water?

@DiehardRCaddicts

8 жыл бұрын

+Sick Lad yes a bigger prop will grab more water and create more torque roll. But remember each action has an equal and opposite reaction. Have you ever started up a brushless motor without it being mounted to something? even with no prop on it will torque over to the opposite side it is spinning. it's not just the prop but the total weight of the rotating mass along with the prop pushing against the water that creates the roll.

@modelnutty6503

7 жыл бұрын

a different type drive line, motor output shaft facing forward, with boat's drive shaft gear driven. they torque roll a lot less for motor and driveshaft spinning/loading opposite directions. they're also capable of swinging larger and/or steeper pitch props, changing gear ratio, this can really help to maximize speed and efficiency. example like an old Graupner Speed 500/600 system that connected a gearbox driving a U-joint steerable stern drive (they help a bunch too!). popped a 5000kv 3040 motor into old Graupner Cobra, it gets pretty happy on 2S.

Please have a look at our other videos on our KZread Channel "DiehardrcAddicts" there you will find some videos on the Pursuit rc boat.

im curious why do you need to sharpen the prop..?

oh... cool

Aluminum is more durable than plastic, copper-beryllium more durable than Aluminum and stainless steel is the most durable. Aluminum is not good with some brushless motors because it is too soft and may become deformed from too much power. Stainless steel is the hardest material of the three and the hardest to shape sand and polish. Copper-beryllium fall between the other two in all categories which is probably why it is so popular. I've always preferred copper-beryllium props.

Search the internet for "great planes fingertip prop balancer" and you will find them.

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nice video, but it would be nice if you actually show us what you're doing instead of telling us what to do and then cutting to the next segment. the whole point of a video is to actually show what you're doing.

Buat no po'o

None of the boats will even run on 2s they run on 4s stock

Yeah I'll stick to plastic lol

@gaspuppygarage3782

10 жыл бұрын

plastic is fine till you get to powerful and break your blade's from them over flexing..

why do you detongue a prop

@mogyver69

5 жыл бұрын

i was wondering the same thing?

What's that brown is in the bag? Can you make a better video ?

Sorry, just really don't have the time for it. Besides I think it's better for someone to learn how to do it themselves so they can get a real feel of their own accomplishments in trying to go faster. If you really don't want to, search the RC forums because there are other boaters out there who do offer prop services.

Great Video ! Thank you !