'Skippy' The WORLD's FASTEST EDF R/C Boat!

In this video, I take you through the last year trying to design and build the world's fastest EDF boat.
SPEED-FLEA, the world's smallest and lightest GPS meter has been key to being able to do this.
If you are in to R/C, whether it's cars, boats or planes, this is an awesome bit of kit. It's only 9g and half the price of other stuff out there because of it's bare board design and not needing a battery, as it's powered by your R/C.
Designed and built here in the UK. Find them here at speed-flea.com.
I am now looking for somewhere to do the full speed run. This needs to be a long narrow fresh water lake in a valley that is at least 1km long.
If you would like to see more of Peppy's designs, you can follow him on Facebook. / pepperrell-designs-107...
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Thank you for watching and supporting my channel!

[@paulhunt920]

Soon as you’d got the design figured out and completed the big boy I got really excited Wicked stuff

[@nickvledder]

I really like the big one. Let me as a r/c rigger builder give you one advice: big turnfin at the back to keep it running in a straight line AND one turnfin on the right floater for the same reason as well as the turns. You need those two pieces of metal!!!

[@Fur8002]

It's at 1080p now, that is a fast boat, glad to see back, can't wait till the next video.

[@electricporsche]

Nice work, I really need to get mine sorted. This has given me a good kick up the arse!!

[@timryan9220]

I've just seen this video for the first time, and I see that you have not posted anything since. I'm curious if you were ever able to get a full throttle run of this 120mm fan model hydroplane?

[@user-ep3hl5ir8y]

Suggest you watch thrust wsr model test runs , approaching 100 mph. That's fast.

[@m93sek]

Mate, you need to post more often. You got great content.

[@bumfie]

Been missing your videos .

[@websitesthatneedanem]

10:45 - ?????? .... so how do rocket in outer space work then?! - But still, the best EDF boat I've seen! 👍

[@websitesthatneedanem]

NB: Change that setup to a normal / airscrew prop and really see it fly!

[@Freddie44utube]

It’s designed with no research done on actual hull design or actual knowledge of how trust is generated (equal and opposite reaction) as long as there’s something to press against? 🤯 terrible

[@armi313]

Good tanks

[@paulmeynell8866]

Now that’s awesome! Although I though a rocket didn’t need anything to push against ( forces being equal and all that)

[@RadicalRocket]

Having the outlet so close to the water seems to be creating an area of increased air pressure directly behind it.

[@MB120478]

AWESOME!!! Are you sharing or selling your 3D design yet?

[@dominiccoote2684]

that is awesome but how did you get the tow boat to hook up

[@SamWolfandCo.fossickandfind]

Tweak the outlet to a slightly smaller gradual diameter but not so as to lose power2-5 mm?

[@lmramos44]

I want one for my 120mm EDF. If you have the cad files I will purchase.

[@chrisgosling5408]

Grafham water not sure of the ther location?

[@philvale5724]

Hi 👋, I am new to your work shop, what happened next, ??? I was into hydros back in the 80s and early 90s, I held the electric speed record for Hydro at 54 miles per hour, in the Uk, and I was into IC racing 3-5 7-5 11 15 cc , I built my boats, Great tutorial , was there every a follow up?, PHIL FROM THE DARK SIDE OF THE MOULIN FRANCE

[@user-vj7xi6pk1e]

9:00 is this also self built? if not can you tell me the name of it please.

[@MarcStollmeyer]

I think the front sponsons are too low. It helps at low speed but once you are at a plane it hurts your stability. Also to help in the turn the inside of the sponson should be angled out, to help grab the water and knife in, while the outer edge should be angled out as well, to help deflect water downward and prevent the inner sponson from diving into the water. The rear should be angled out to help it from diving as well.

[@NoneNone-gk9wt]

Make a vetury tube and put it under the water like a prop ."BUBBLE DRIVE' LOL I WONDER IF THAT WOULD WORK.

[@flymachine]

Ummm what were you thinking of sticking an open edf unit on the very leading edge just above waterline of a watercraft??? I know your thing is aeronautics but wow lol. A lot of fun watching you learn thanks for sharing, consider the thrust line vs waterline perhaps a small hydrofoil at the tail to raise the tail with speed , you're losing so much to induced drag - the lighter you can make it on the water without planing the better if it's speed you're after

[@RadicalRocket]

Thanks for your comment. I like to start with an idea without too much theory, this makes for a much more 'hands on' approach which I think most people will like. Hydrofoil is a nice idea but limited. Something that must be appreciated is that any wake displaced, that is the entire wake void left by the boat if filled with water and weighed, adds drag to that volume in weight in water. This is because you are pushing it out of the way. The faster you go, the bigger and longer that void.. Anything in the water creates drag greater than 1,000 times that in air. So anything in the water at all is going to slow you down.

[@daviddavids2884]

at 11:00, L M F A O jeezuss that is so wrong.

[@Cynocehali]

Please sell some!

[@SharkV60]

Size and power are not everything ... Smaller, lighter, faster ... My 45mm EDF Rigger (Boat): kzbin.info/www/bejne/fIixf4KEhb9lnLc and kzbin.info/www/bejne/rJjdZp6Jl9F0Zrs

[@RadicalRocket]

What is you top speed so far?

[@SharkV60]

@@RadicalRocket Current top Speed is 125 kph or 77 mph.

[@RadicalRocket]

Skippy is set for a speed run in the spring. Unfortunately, it's too big for my local lake, or any lakes remotely nearby.

[@SharkV60]

@@RadicalRocket I can't wait to see it at full throttle. But from my experience I can say it isn't easy to have a stable EDF boat at high speeds ...

[@FarmerFpv]

Should not need thrust hitting the water for it to hit high speeds. My EDF outrigger will do 67 mph. Your sponsors are too low, it should be even with the bottom of the hull. You also need a wedge at the rear of the hull where it contacts the water. Building it just like a prop-powered outrigger and just adding an EDF would be much more efficient. Your sponson booms should be straight and not bent down making the nose go up high you are actually introducing drag. An EDF doesn't need a surface to push against to accelerate as it pulls through the air just as it pushes through the air. Just like EDF jets they have nothing to push air against as they are in the sky.

[@alexgjelstad]

What happened man?

[@MegaPaddles]

Have seen electric boats quicker than that

[@RadicalRocket]

That are propelled by a ducted fan?

[@Floatsfast]

You have got a lot to learn about outrigger hydroplane technology. Your CG is way too far back for one thing. The speed isn't that impressive. There are no records for EDF hydro's so how can you say that it's the world's fastest?

[@RadicalRocket]

Here is a record of an EDF hydroplane. It's the worlds fastest! How can you tell where the CoG is on my design? I can't believe you used the word 'Technology' 😂

[@darrenellis8910]

Shame it’s so noisy, my nitro fuels boat is far far quicker and less noise than this.

[@RadicalRocket]

"Shame it's so noisy" says the man with a Nitro boat! It handles like derailed freight train and might spectacularly destroy itself on the next run! But who cares 😂

[@desnekke7073]

😂😂😂 the fastest 😢😢😢

[@phase3ute]

Click bait. Gets the big thumbs down 👎