How many boat engines is too many?

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30 май 2023

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Комментарии : 1,4 тыс.

@dfgaJK Год назад

I'm amazed how well the low camera angles make it look like a full size boat!

@caturlifelive Год назад

Agreed lol 😅😂

@MoneyPitBoating 11 месяцев назад

Was thinking the same thing!

@dfgaJK 11 месяцев назад

@Karl with a K ?

@brodz3000 11 месяцев назад

@Karl with a K shut up carl

@kiarawhalen1544 11 месяцев назад

Agreed. The thumbnail got me until I started the video. But I'm drunk so it might not count.

@FrijoleJoe_BeanMan Год назад

Florida Boat man here, again. The Step hull Is Great for rough water, but ultimately slows you down. They're basically hooks. To achieve better performance you need Trim and Tilt, and Jack Plates. The trim and tilt will allow you to adjust the angle of thrust, making it easier to get on plane and reach a top speed. The jack plate will give you control over the depth of the engines, which also helps with acceleration and speed. Prop pitch Is super Important, but I'm not sure how that would translate into miniature applications, so you're sort of at a loss there. And finally, you made a very good observation not too many people would catch. The engines on the outside will get thrashed without something to help break the water. This is true for large applications as well. They're dragging more than providing thrust at that point. The ORIGINAL idea behind Multiple engines was to avoid getting stranded. If an engine failed, the remaining engines would provide enough power to pick the boat up and put it on plane. There's nothing worse than having to chug along at 5mph, 100 miles offshore, because you cant get on plane and cant risk burning all the fuel by plowing through the waves. Any number of engines past that is normally just a rich dude flaunting his cash and ego. And just for fun, I bet the hull you chose to model your "12 AM Quickee," after is either a Intrepid or a Contender (32'+ IRL)

@EDCandLace Год назад

Most definitely a contender

@chrisk6101 11 месяцев назад

Just read Florida and he's qualified from the start and expert 🦅🇺🇸

@josephgraham3807 11 месяцев назад

thank god were moving to pensylvania this summer been stuck here in florida for 7 years! (that was just bad luck i can speel)

@reignman0311 11 месяцев назад

@@josephgraham3807 Pensylvania? Get a rope!

@Lucien86 11 месяцев назад

I think he was also hitting the problem of not having enough weight in the nose.. The stack of three rows was definitely working though - so fast. All it needed was full all engine steer and that extra bit of weight..

@makarlock Год назад

I love how everyone at the actual boat show was like “yeah never enough outboards”

@bigiron4018 Год назад

That was funny. needs more

@feloniousfloyd2203 Год назад

They were being nice and having fun.

@mjodr Год назад

It's the reason the ridiculous photoshop's even exist. It's because that is the actual mentality of Americans building/buying these boats. I even tried my hand at a silly photoshop like this one time.

@tin2001 9 месяцев назад

I feel like the correct answer is that once you need more then 2, you probably need to consider inboard engines. 4 or more and you're kinda just showing off that you're a wealthy idiot.

@letsdosomething6691 5 месяцев назад

You can get way more speed just by changing props. For the four motor set up the props are probably perfect for the power you have, but with the 12 motor setup you have tons of power you aren’t using. You can see this by the fact that the boat had an almost nonexistent 0 to top speed time. You need steeper pitched props to utilize all that power. For reference look at offshore race boat props. That’s probably the level of pitch you need. Where they are almost parallel to the direction of boat travel through the water. You could even do sequential pitch on each set of 4 motors. The ones closest to the boat being the shallowest pitch and the third set back being the steepest. You could definitely do a revisit video testing prop pitch.

@infinitytoinfinitysquaredb7836 Год назад

This channel is like _Tool Time_ with an insane amount of imagination and energy.

@Knemer1990 Год назад

More power!! (Tim allen grunt noise)

@tomothybahamothy Год назад

If peter uses the boat to smuggle cocaine it would be perfect

@mattfleming86 Год назад

Ahh the Binford Bad Boy Boat.

@OlaftheGreat Год назад

AEUHHH???

@1nvisible1 Год назад

*SOLUTION: You need a single toy boat mounted **_BEHIND_** the outboards but inline with original ship hull. With the three rows of motors only the first row is getting clean undisturbed water, everything behind it is just causing drag.*

@ConvincedIdiot Год назад

I was waaaay to happy to just keep watching B-Roll of the 4 motor setup. I am so easily entertained......

@Lizlodude Год назад

Ok, I really want to see 1:30 done with a full size outboard now lol The baby outboards are so cute!

@shaiseg Год назад

the prop pitch dictates the max speed. No mater how many motors you add, it will always reach the same max speed. You need to increase the pitch together with adding motors to gain more speed. Anyway, thanks for another hilarious project!

@GrimReaping Год назад

Hey Peter, if you want the boat to be able to turn in the stacked rows of 4, you'll need to invert the direction of the second set of motors. Having multiple pulling in the same direction will result in a "crab walk" or "strafe". / = crab walk / = turn / \

@FtanmoOfEtheirys Год назад

I would be surprised if he wasn't aware of this since this is also true for planes with twin props or more.

@bigiron4018 Год назад

@@FtanmoOfEtheirys you misunderstand, he means the steering direction not the prop rotation direction. airplanes do not steer the prop.

@GrimReaping Год назад

@@bigiron4018 Thanks

@GrimReaping Год назад

@@FtanmoOfEtheirys Also, misunderstanding or not, knowing something and thinking to do something are two very different things.

@bigiron4018 Год назад

Although I did just realize only the first set of motors turns, hence the issue.

@AmmonHAMMR412 Год назад

With the addition of the smaller side boats, you created tons more drag. Also, the motors in rows wasn't effective because you wont go any faster without an increase in rpm, which would increase the drag from the slower motors. An impeller setup would be fun to watch!

@davidbandler Год назад

Also the reduction in propulsion due to neighboring propeller wake causing cavitation interruptions and blades being out of water. Watercraft are several separate systems designed to work together; hulls, propulsion, etc. You just can't tack a random drive system on a sail boat, barge, or anything random that floats and expect performance or worthiness.

@Largetalons Год назад

13:38 covered this...

@godsonjoseph Год назад

I am fairly confident peter knew exactly how this video would turn out to be even before doing all of this. Its just fun to go through the process even still :)

@Lonemite 11 месяцев назад

@@godsonjosephI find physical models help a lot when I comes to seeing what other options might work. Kinda like the turbo axle. What an innovative technique that flopped hard. I’ve always wanted to see it revisited with more modern tech. Plus some odd things are just cool. The rotary Motor has its mighty big list of downfalls but it’s such a cool system to see done well.

@joshanderson1019 Год назад

I love this idea. From what I can tell, the motors on riggers was just too much, and putting them in rows behind might work if you make the propshafts longer on the motors the further back they are. Also the props are possibly too small since there is a bunch of bubbles from cavitation, but first try putting the props deeper in the water the further back they are and if you still see lots of aeration behind the boat when its not on plane, increase prop diameter and or pitch.

@davidbandler Год назад

For the amount of propulsion/engines you're wanting to use, the draft & water displacement is too shallow (or you need to switch to a more flat bottom, plane hull and/or a hydro-foil.) Increased surface area & buoyancy wasn't the solution, but increased ballast, changing the center point, and a longer, prouder keel. Your hull is the problem for the power you want to output - that hull will always turn submersible at excess speeds.

@newmonengineering Год назад

I pretty much had an idea about the outcome from the start, you guys confirmed it. It's not just the number that matters. There are fluid dynamics at play. That said you just need bigger faster motors, not more of them. Besides more =more headaches and maintenance

@roshanpereira7650 Год назад

Nowadays such real life boats are using toroidal props for propelling themselves they're quite efficient too

@robwilcox9296 Год назад

You have a planing hull, with lifting strakes and all the weight is at the rear which does not permit the lifting strakes to 'lift' the boat. Add some weight to the front and it may fix the issue, and will also reduce your rear drag.

@hockeymikey Год назад

Good idea. I was thinking about weight too when it wasn't working well also.

@whappy212 Год назад

Exactly this👌

@colstace2560 Год назад

Trim the motors down a little maybe ?

@davidbandler Год назад

It is a ballast and center point issue, but I believe that specific hull will always plow-under and turn sub at an excessive speed point.

@Debbiebabe69 Год назад

How about glueing one of those spare outboards to the back of the boat, pointing straight down, to help lift the boat out of the water? It looks like a lot of the energy created by those 12 outboards was wasted in pushing the bow of the boat upwards....

@williamdowling7718 9 месяцев назад

I love the attention to detail, especially on the "little johnson 25" stickers. I grew up with a small johnson 15 outboard that looks just like the ones you made.

@sharonbraselton4302 5 месяцев назад

buy mini tug boat hibda 15 hp 21 moh 18 inch draft dowñ

@WowReallyWhoDoesThat 10 месяцев назад

I like the attention to the little details, like the rotating radar on top. The original row of motors might done better if there was adjustable trim. Also more might be more beneficial to run at top speed even if towing a skier.

@kevinderung8524 Год назад

I agreed with the boat show guys "never enough motors" until you sent it...its be col to see some different prop configurations as well...and oh yeah you need to make it fly :)

@power21100 Год назад

Hydrofoil it!

@Sawer Год назад

I like sailing, I think ONE engine is one too many xD

@skitzojedi2505 Год назад

@@power21100 hydrofoil...to float plane takeoff.

@danielmarek4609 Год назад

More engines give you more torque but not necessarily more speed. More speed would come with different props or faster prop speed. Also putting more weight on the front to balance out the boat better might allow it to get up on plane easier.

@nielsdebakker3283 10 месяцев назад

More outboards also means more drag. A pair of big outboards for a certain powerlevel is more efficient than more smaller ones.

@tin2001 9 месяцев назад

@@nielsdebakker3283 OK.... That confirms what I just commented elsewhere then... I felt like 2 is the sensible number, and if you need more, you probably want to consider inboard instead. I'd say 3 is the max you'd ever want outboard, and 4 or more is just showing you're a wealthy idiot.

@davidleavitt5146 9 месяцев назад

Your prop pitch is basically your gear ratio... If you keep the same gear ratio and add more motors, it'll get to top speed quicker but will not go faster... Of you add more motors (more horsepower) you'll need to increase your prop pitch to give it a higher gear ratio which will give you more speed.

@BikingVikingHH Год назад

A propeller in water pushes water backwards, propelling the boat forward. The terminal velocity of the boat is the velocity of that backwards stream of water minus the drag of the boat. The more propellers in the water, the less effect the hulk drag has on decreasing that terminal velocity, but at some point you can only go as fast as the propeller spins and sends the water backwards. Basically the more motors you have the better at towing you will be at low speeds, but it won’t ever make you faster than the terminal velocity of a single engine propulsion stream … It’s like a car with tires that slip on the road surface. Making the tires wider will get you better grip, but won’t make you go faster..

@mooney_gaming 10 месяцев назад

what if u use real boat engines

@busasquid Месяц назад

He’d be even more broke😂

@mooney_gaming Месяц назад

frfr

@myotherusername9224 Год назад

Peter: drops 3D printed outboard in fishtank Fishes: "ahhh noooo... not again !"

@markchinguz4401 Год назад

The fish looks sad enough in that tank already

@WingedAtheris Год назад

@@markchinguz4401 Yeah, straight up r/shittyaquariums material.

@trolleymanV Год назад

yeah, wtaf, animal abuse right there

@exterminater267 11 месяцев назад

Peter: Hull is what determines maximum speed, not the size of the motor. At a certain point the resistance of the hull on the water becomes maximum and no amount of added horsepower will make you go faster. instead: the excess pressure in the transom causes it to break the motor mount.

@bonafide9516 11 месяцев назад

I would have tried 6 tight on the transom. But you did so much work, well done and nice work.

@Arcfay Год назад

My thought on this is that more same motor is like connecting the engine with more wheels to spin, like fwd vs AWD. I'd say there is a slight improvement in initial acceleration. At the end of the day, you are reaching the top flow speed of the rotors.

@Lucien86 11 месяцев назад

Very close too if not reached.. I think you have the real answer here.. Need faster propellers.

@PabloEdvardo Год назад

would love to see more along this idea, like dedicated turning props, and submarines!

@PabloEdvardo Год назад

you could also 3d print internal channels and make jets!

@pinocleen Год назад

@@PabloEdvardo Subs that can fly it is!

@theprofessionalfence-sitter Год назад

I'd be curious, whether cutting some holes in the middle of the boat and fitting more motors through there might solve things. Presumably, the water will no longer be as turbulent once it reaches the motors at the back, so it might function better than the stacked rows. Also, you could fit the propellers in the middle somewhat lower than those at the back to get the boat to naturally pitch upward a bit.

@Adriaaan Год назад

You just create more torque if you don't change the propellers. That's why it doesn't go any faster. Also adding counter-rotating props could be ideal for the stacked setup.

@oliverscorsim Год назад

I just wanna point out an interesting thing the motors on the right side of the boat when you lined them up on both sides were making the down wash much less frothy that's normally a good indication that efficiency is going up. I know in planes they had some success with tip motors making a vorticy that helps drag. Might want to try making them turn the other way on the left side and making new props.

@HeisenbergFam Год назад

5:17 that 80s montage is sick, spectacular work yet again

@vsci79 Год назад

The lil spinning radar is the cherry on top 🤌

@user-cj5ly3ug9s 4 месяца назад

You should have Tried Counter Weight

@propabilityfpv Год назад

That actually was a pretty sick 80's montage, and now that song is stuck in my head 😆

@TrashPandaPirate Год назад

I love how the consensus of the boat show was "never enough motors"😂

@PhilBender612 Год назад

Its like a Midnight Express, dude it is. I want that hull! Looks awesome. Oh, and I love the "Little" Johnson on the outboard cover. lol Great Job Peter!

@milaandahiya 11 месяцев назад

I lost it when I read "12am quickie"

@jons6125 Год назад

Well obviously 6 was the magic number as recommended by experts at the show

@JohnJones-ps9fo 9 месяцев назад

As noted by others here, there are a number of other factors that affect the performance that seem to be lacking proper consideration on this model boat: prop pitch and diameter, motor attitude (tilt/trim) and balance of the load--I can assure you that the boat will perform much better if those batteries are moved further forward, and that will decrease any need for additional lift at the stern (such as the empty plastic drink bottles or those smaller hulls), whether it's on a radio controlled model or the real thing--too much weight in the back and it's hard to get it to plane, the stern wants to drop down into the water, and your videos prove that--the extra width can also be a problem, but so can additional length--there is always going to be a point of diminishing returns, so YES, there can be such a thing as "too many" outboard motors--it was still a hoot to see all of the modifications and test runs, thanks for the laughs--

@animationtime947 11 месяцев назад

I don't know how easy it would be but you should make an rc gatortail surface drive

@ZanderPrints Год назад

Hi Peter love your videos. You should make a dermal boat.

@daniellewis1789 Год назад

SKINBARGE Oh, you meant Dremel!

@Lancerandduck7 Год назад

I find it hilarious how evenly-split the vote was on "too many" or "not enough"

@BrutalButtSlap Год назад

Because there is the cautious-entusiast rich folk that have in mind weigh and efficiency in mind and the crazy-estusiast rich ones with now 4 is enough but if you got the gas why not

@jram7047 11 месяцев назад

Im enjoying all the boat stuff your doing , hopefully your viewers and the algorithm works together to make it sustainable

@DatBoiOrly 11 месяцев назад

9:40 Yeah the issue is thrust basically your creating a vacuum under the hull causing it to stick to the water and drag down the rear end theres a couple ways to fix this one of the simplest however is extending the length so it takes more force to leverage it down or weights at the front

@Jsederap Год назад

Support from Philippines 💪☝️

@resistanceisfutile 11 месяцев назад

I think my favorite thing about this and many of Peter's videos is the chemistry between him and his brother.

@ront8261 Год назад

Great stuff!! Props in the 2nd and 3rd row cavitate and provide no thrust once the boat gets going; they just suck air from the props in the first row.

@sakepaardekooper223 3 месяца назад

To me as a mechanical engineer the best solution was the first solution(all engines next to eachother). In your experiment due to the fact adding more weight to the back and the torque of the engines it didnt work as well as it could have. I think you should add more weight to the nose of the boat. this will result in better performance up until a certain point. Putting engines in front of another one will not result in an increase of power due to flow interferance of the engine in front. For the mentioned first setup: adding engines will work for increased acceleration(in my theory). however, top speed wise it wil not likely increase up until a certain point as the propellers of the engines will simply not turn faster then a certain rpm(adding 2 engines from 16-18 engines for example will not be likely to increase much top speed).

@sethburnsman Год назад

Can you 3D print toroidal propellors and do some efficiency tests? Would be cool!

@BIllMcCambridge Год назад

Funny how toroidal propellers are "new technology" they were invented in the 1890s hahaha reinvented in the 1960s. I do understand that material technology and manufacturing processes have made them easier to produce it's just funny when the marketing department gets involved it is labeled as new tech.

@guily6669 Год назад

@@BIllMcCambridge Probably, but even then I have seen some good amount of 3D printed versions and they were worse than the original propeller, every small tweak could do a big difference and probably will still have to do many tries to get a perfect one.

@femanvate Год назад

And TV wonders why their ratings are down. Channels like this are the new entertainment! Cheers!

@danwood1121 Год назад

Would be cool to see your take on that dragster boat from Hydro Thunder

@BIllMcCambridge Год назад

I wanna see the skiff with the dog in the front!! From hydro thunder. Look it up it was a hidden feature boat!!

@recoilrob324 4 месяца назад

That one boat in the intro had 6 of the 600 horse Verado motors....$77,000 each!!!!! That is just insane. The model engines here are SO cool! What a great use for 3D printing!!

@Chris.Davies 5 месяцев назад

FYI; a Mercury 450R costs between $55,000 and $80,000 each, Each engine will consume 2 litres of petrol every kilometre at speeds over 25 kmh. So, six of them will use 12-litres per klick. In NZ, that would cost $34 per kilometre, for the fuel alone!

@wesbrackmanthercenthusiast4695 Год назад

You need to do more train stuff

@wessle3233 Год назад

great to know i'm not the only one who thinks they put way to many on there

@ZirconGames Год назад

I mean.. in my opinion once you go over.. 3 it's already stupid, but if they have the money... idk

@nortvpn2550 11 месяцев назад

I grew up down the street from Shawnee Park, literally used to live on N Monroe it's so nostalgic to see it in your videos.

@EdwardChew Год назад

Those funny configuration after the failed one was hilarous

@PeacefulStream Год назад

This is a great video.. keep it up

@SaureZitrone Год назад

Love youre vids keep it up🎉🎉

@busasquid Месяц назад

I like how Peter talked trash on the Miami water when his fish tank was absolutely foul smh

@user-vt2ps3kl2o Год назад

Looking forward to your stl file. I'm waiting here

@SOLA_FPV Год назад

Going to need them stl files I’m going to need something to do this weekend. Bad ass build buddy

@PeterSripol 11 месяцев назад

they're up for the boat now! motors are still in the works

@witebwoy13 11 месяцев назад

@@PeterSripol any chance you have the stl files for the console and hard top?? I have been searching the internet with no luck. Just want to print a cool display model.

@Maybe-So Год назад

Government: oh no! We must regulate that!!

@altraffie20 Месяц назад

Damn!😂

@pious.techpriest Год назад

bro, look at the Viet Nam era PTR (Patrol boat, river). It had a two stage impeller and was SO fast for its size. I think it was probably converging on the limit of the maximum velocity of a traditionally hulled boat. Could be very cool to try on the RC scale... Especially as a test to model up for your new large boat....

@jonathanpalmos2911 11 месяцев назад

The boat is already going at it's top speed with 4 motors on it. Adding more motors will not change the top speed. It'll just change how fast it gets to top speed. You could probably double the speed just by changing the pitch of the props on the 4 motor setup

@MACH050 Год назад

We need more motors

@leokimvideo 4 месяца назад

Your always going to be up against the 'hull speed' of a boat, adding more motors just adds more drag once you go past the happy balance of power for the hull design

@KrayZieTyler 4 месяца назад

you're

@h2s142 4 месяца назад

@@KrayZieTylerur a B===D

@KrayZieTyler 4 месяца назад

@@h2s142 hey man, I'm just doing my job to help fight the "your you're there their they're our are" pandemic.

@MarkTubeG 3 месяца назад

That's what I was taught by a sailor. He was training me on a sailing yacht. He said, while under motor power, don't push the RPMs past the point of diminishing returns. The hull speed maxes out, and more power just uses more fuel without much, if any more speed. This guy's hull seemed maxed out, and more motors just made more bubbles, not speed. He's gotta deal with drag as he adds more power.

@kornfed81 Год назад

I know it could just be appearance but all the motors within the width but behind the boat was faster. Its awesome!

@SailingFrolic 11 месяцев назад

When you lined them up behind each other, I legit had a flashback to how I used to draw boats as a kid. Literally exactly like that, lol

@Heneling Год назад

my brother tried to set fire to my house while watching this 🤷‍♂

@kjho1224 Год назад

I think I need to make some outboards, I need the files as soon as possible

@Zappy1210 5 месяцев назад

Pitching the motors will give you more speed, plus counter rotating motors might be helpful too.

@leeawesome4386 Год назад

you could also put the motors behind the boat but in a stair arrangement so that the turbulence from the motors closest to the boat doesn’t affect the other motors

@nickye2864 Год назад

I'd say 750000 is too many and 0 is too little. So somewhere in between.

@emory442 11 месяцев назад

I love the silliness of this project, but man, that boat looks really nice.

@keybrent64 Год назад

Those stl files would be sweet! I really dig the hull design

@PeterSripol 11 месяцев назад

Stls for the hull are up now!

@ayoaina_fpv 10 месяцев назад

1:30 Wow! That was close! Any closer and you'd have had minced goldfish lol 🤣

@rcOhio Год назад

been a P.S. fan from the beginning! This guy is so awesome! So smart! Keep it up Peter!

@zachlynn276 Год назад

Man that’s awesome I’m waiting on the stls for that outboard

@lonestranger 18 дней назад

@3:58 I thought you were cleverly making it look like 0:18 of the GTA VI trailer, until I saw this was uploaded 6 months earlier than GTA's.

@chchris51 Год назад

Looking forward to those stl files! Great video!

@42jeep Год назад

Awesome video mate i want to print this boat and can't wait for the file.

@pixelpeter3883 Год назад

Loving the on-board footage! The rotating shot got me puzzled for a moment (360camera?) until I thought of the radar! Cool! :-)

@Slalomer83 11 месяцев назад

can we just point out for a moment what a beautiful boatdesign this is! 😀

@SteinGauslaaStrindhaug Год назад

I'm pretty sure one optimally shaped and high powered prop is the most efficient, maybe two props rotating opposite directions to cancel out rotational torque. Using more than two IRL is more for compromise reasons than to be opttimal; e.g. more small propellers rather than one or two big ones to be able to go into shallower harbours; more props in pods around the ship to get more maneuverability at the cost of less optimal max speed, multiple outboards on a smaller boat to get around size limitations (both physical and legal maybe) of how large an outboard can be before it's impractical; or just because you want more power than the largest outboard that is made etc. (and for some reason you want the motor to be outboard). Outboard engines is already in itself a compromise; by having the engine and propeller combined as one unit you make it easier to add and remove the engine to the boat, and originally most people would detatch the motor and gas tank and keep it at home most of the time and only leave the boat outdoors or in the marina. But with the ridiculously large outboards, and particularly a complex multi engine steering setup it's a huge process to add and remove the engines anyway, so they might as well be inboard engines; but I guess some boys like to brag about how massive and how many engines they have and it's easier for everyone to see how excessive your setup is, if it's all outboards...

@ngsomeguy Год назад

If i may, try a hydrofoil setup on it with different stages for the motors. 1st is the original 4. 2nd is the additional 8 once the lift is achieved.

@SnowingNapalm 10 месяцев назад

so glad you tried all the configurations and went 12x maybe a prop swap for the successive layers of motors like each row gets more agressive pitch props basically each row being a stage ... uh oh you forgot to do single file 12x outboards can't wait to see 🙈 the results ❤

@fossilfool 4 месяца назад

Good vid. Have been considering adding a 2nd motor on my dinghy.

@Zarkonem 11 месяцев назад

I think that the main contributing factor to the top speed of the boat is how fast the motors themselves are spinning. To put it in a different example, lets say you have an RC car with a motor on each of the wheels. If the top speed of the motors will only push the RC car to 10mph, then it doesn't matter if you have 2, 4, 12, or 20 wheels driving it forward, the top speed will still only be 10mph. That is essentially what you have here. Having more motors that are also pushing at the same speed isn't going to make it go any faster. It might have more thrust, but that thrust still has a top speed. That said, the correct number of outboards = the least number of outboards it takes to give it the maximum amount of acceleration and top speed. If you can do it with less motors, than it's more efficient.

@kevint.184 10 месяцев назад

Got to change the pitch on the props to increase speed. Example, 5000 rpms at 12 inches (pitch of prop) of travel per revolution is a constant no matter how many horse power you have. 5000 rpms at 24 inches (pitch of prop) of travel is twice as fast. More horsepower (more motors) allows you to reach the 5000 RPMs at a higher 24 inch prop pitch

@zip1233 11 месяцев назад

another issue you ended up running into was weight bias and trimming. with the weight in the rear it needed more trim down, or weight up front to balance out.

@mbunds 7 дней назад

"Are twelve outboards too many?" Without hesitation, almost all boaters, "NO!"

@Peter-ss1vb 11 месяцев назад

You came to the right conclusion about the motors. You didn't try adding ballast to the bow of the boat to keep the bow down and help it get on plane better. Doing this should help to reduce drag and increase speed. There is a fine line between balance and nose dive, have fun.

@-You-Tube- Год назад

Love the detail of the "little Johnson" decals.

@justinsch789 11 месяцев назад

Ok!!!!! Really need a shopping list for this project!!!! already have the motor parts printing!

@EDCandLace Год назад

Adding more outboards aren't really for more speed, it's to carry load. The difference between running triples and quads in speed won't be much unless the boat is loaded down. Remember each one of the lower units is extra drag. When we took our 33 foot CC from twin 400R to triple 300s we lost 6mph with a light load in the boat... BUT when we have 6 people, lots of gear, Ice, fish, full tank of fuel the difference was night and day. The boat handled rough water so much better while loaded down, it popped up on plane quick, it's cruise efficiency was drastically better when the boat was loaded down..... if you want to carry more load you add power. And I'll tell you a secret two 450s will always be faster then 3 300s... hell two 400s will be faster then 3x 300s (won't carry load as well) when the boats light because all that extra drag and weight. Best way it increase speed in a boat is to remove weight and run more pitch on the prop.

@jackm6307 10 месяцев назад

Trim the first configuration either in total, but at least the left and right 4 motors. Fun video.

@donnieharness2 10 месяцев назад

i think the motors set up at 12:30 would be a great idea if you raise them up as you ad rows on behind because with them the same height as the row in front of them when you take off buries the whole motor under the water and the water hits the big part of the motor and cancels out the water flow if they were raised then they wouldn't interrupt the flow of water so much and would help speed up the flow

@johnhaythorpe1063 Год назад

Noting the name of this video is about the number of engines, I would say you have tried almost every combination. If, however, the intention was to get a 3D Printed boat to accelerate, ride, plane and to have the power of an electric motor(s) produce thrust; then the variables would have been power (Watts), RPM, Prop size, Prop pitch, and angle of inclination (instead of the number of motors). I love all of your videos, the perfect mix of optimism, goofiness and perseverance; please keep going and pushing the envelope in all you do (land, water, air and ice).

@clonkex Год назад

I LOVE how many people are immediately jumping on board with the joke when you ask if it's too many motors 😁

@stanleydsouza6723 11 месяцев назад

Peter Sripol is Aeromodelling enthusiasts best 👌 buddy..We as enthusiasts love all your experiments, Hope more from you, Love you 😍

@anton5577 Год назад

Loving the 80's music vibe... very Miami Vice 😁

@iTzHuGzz Год назад

I love the thought and the execution, but i have some thoughts as well. with all the engines, as you said, adding them in a "series" manner does not increase the effect as much as side by side as there are props functioning on turbulent flow with a lot of cavitation (air bubbles created by unnder pressure for those unknown :) ). My immediate hypothesis is that when using more engines, the torque needed by each motor decreases, meaning you could increase the prop pitch to push more water pr. rpm, increasing the top speed. If the maximum rpm is reached, but the engine is "running loose" (definitian ad hoc now: push

@SocksWithSandals Год назад

That was extremely interesting. I was surprised that was even a relatable problem!

@Lilwolf2000 Год назад

Adding 3 more outboards, but not right behind the others... might be a bit better then 4x3 config. And turning on off the motors based on left/right would help turn