RC Hydroplane - Setting Up For Speed | Theory, Opinion, Guesswork - It's All Here! 

I got my note pad and taking notes. Class is in session. Thanks for sharing

Sorry lost power for a moment. Back to set up. One main factor in adding weight for balance is pendulum weight and reaction. This is often missed by most designers. With gravity you want to be low and light and add weight for balance. This is where pendulum coefficients come in. You can control reaction direction as well balance, fine tuning performance. You can always add aero into the equation but with a dramatic surface change due to ruff seas it's impossible to find. I find that the best solution is to go with mechanical control. If you would like to know more about this delta please reach out me and keep the great videos coming. Thanks Richard Retired Engineer

Hi Scott, I'm a retired engineer just getting into RC boat racing. I just started watching your videos the last couple of months and love your attention to detail. My majors are in thermos and General Dynamics. After viewing your video on (Set Up For Speed)

I would love to see a tenth scale electric build. Love your content and instructions.

I just out my dog down today man. I love that you flash Jackson at the beginning. If I had a cool channel I’d do that too. Love the videos!

I’ve been dorking around with kneel down outboard hydros for quite a few years and the knowledge that you’ve laid out here is gold! Granted I don’t actively race, nor am I around people that think or speak in terms of hydrodynamics,aerodynamics , physics and such, very often leaving a void in my approach to certain tinkering. Thank you for explaining these bullet points giving me great food for thought with my old wood relics! Now I get to dig through your vids for more gold!👍😉

Awesome! I don’t race boats, but enjoyed watching this build. The amount and detail of set up information you shared was over the top, it all makes sense. Admire you for sharing these race secrets. I don’t care what you build next, I will be watching. Appreciate the Jaxon pics at the beginning as well. Blessings!

Tip... i sponsored Australia's fastest hydro bare foot drag boat years back when i was a spraypainter, sand the bottom with 1200W&D or a 1600 so the water beads off it and put a silicone polish on it like a Mr Sheen, as Trevor Mcgrath said to me after the first run, if it had wings it would fly, even Rain X they use on race car windows works a treat

Love to see a 1/8th scale Vintage of newer Unlimited build.

I appreciate the season wrapup, and the changes you'd make list. This was a great video, thank you Scott!

Hi Scott. We race 1/8 scale electrics here in IMPBA D12 and D13. I do have an old 1/10 scale winged wonder still practically brand new. Could use some pointers on building it (the hull is finished and primered, but no gear has been set). I have a (gas) Blazer Backlash kit I wanna build this winter. Or we can build nothing and drink more coffee...lol. Thanks for the videos Scott. Very informative.

Build the gasser!!!! Make it work!! Take us for the ride!!

Definitely do the Giveaway. 1/8th FE 1990's/2000's. Build for weight, do many mods/addons/doodads, and a paintjob with a boatload of taping. Lets rock and roll dude!

A lot of these theories work on full size hydros as well. Ours would turn in really fast but the rear end would want to come around to. Moved it back so back of fin is about the balance point of the boat, way better. Also need the fin running off parallel with hull otherwise by the time you are at the end of the straight you have it full right lock. So much fine tuning that can be done. Keep up the great work.

As more of a "newbie" i cant say enough how great helpful this video is.. thank you for posting this Scott!! Btw.. NAMBA District 9 has on average of about 9-11 entries of P-LTD sport hydro and P Sport Hydro on any given race weekend. Personally i would love to see a P sport hydro build and a giveaway of that boat!! Either way im sharing this video!

Really enjoyed your fine tuning knowledge. Thanks Scott.

I vote for the 1/10th scale build. I converted my old Sport 40 this year to electric and works amazing. Limited on pond sizes close by so Gasser sits on the trailer too much. The Sport 40 getting a work out and loving it. Really enjoy all your videos! Thanks

Hi new time watcher I really learned a lot from three videos from you thank you very much as far as the new boat I would love to see ML backlash gas Build because that is what I'm going to be building next for my second build thank you for all the knowledge I do very very appreciate it I will be watching more and learning a lot more from you thank you

The entire build is beautiful. Thank you for these vids and your willingness to help us. Anything you build I’ll definitely watch! The give away is an awesome idea, I would donate to the cause. Maybe put an age limit on it, give it to a younger kid possibly spark some future builders.

One of Best videos yet Its right full of info. So the inner part of your boat is an airfoil which flies the boat at speed is your turn fin at the balance point of the wing?? In our planes the balance on the wing is usually the thickest part of the foil weight forward makes its landing speed faster and its safer to fly and weight rearward makes it more aerobatic and a bit squirrely to fly and land . For planes lighter is always better !!

You know I’m partial to Gas Boats so my vote is for a Gas Build. The 1/10 giveaway thing would be cool, but a Gasser is what I want to see. As always Thank you 🙏 for the education. Be in touch sir.

I click like immediately every time and I think you should build an electric boat ten scale

that tape love the way used it

Pro Tip: Use a plastic bread bag closer tab & place it under the end of the tape roll, you will never have to look for or fight with it. 😀

All your videos are great to watch! I hear that "chipmunk voice" when you speed through something like mixing epoxy. I then wonder if there"s a tip we may be missing? Not our buddy Scott! He wouldn't do that! LoL Don't know if he still does but, Phil Thomas use to put in his set up notes for each boat that he sold to put the weight that was needed inside of pipe insulation and secure with zip ties. Me, I had to put the weight as far forward and down low... That's your floatation as well. Didn't understand why he was putting it in the pipe insulation... Until I found a time clock that refused to move... There's a reason cars have crumple zones!

Love following your builds. 1/10 scale build would be great.

Have you ever considered scratch building your own design? What would you change/add/ delete? Maybe a Sport hydro.

Awesome information, I have used some of it to check my UL-19. Do you ever mess with catamaran boats-- I could only imagine what tips and hints you would have for them.

Awesome video!!! Thank you!!! Build a FE 1/10 scale that would be cool! Have a great day!!

Sorry for all the words . For the guys who havent sheeted the bottom of the sponsons yet weight could be added by using thicker wood upfront to help balance . Your thoughts ??? When we built F1 pylon racer airplanes their minimum weight was 5 lbs . So we reinforced weak spots to bring the weight up instead of adding lead . So after we built a few and destroyed them racing we knew where we could add more material to reduce stress cracks torn out landing gear etc.!!

I have been debating on a 10th scale Oberto, got some old plans from Dave Frank that I have had forever but don't know if it would stand up to today's power systems?? But to answer your question build a 10th scale electric!!

thanks

You need to scale the eliminator up and make a gasser

blazer marine just set a new P unlimited hydro record for IMPBA of 20 seconds 1/3 mile. Would really like to see if you could replicate that. Hull is due to be released to the public sometime this winter. P class being 4s, unlimited being any motor you want. TP 4070 CM is what was in it. Dont know KV.

Hey Scott, love the videos got a question does the boat need to be balanced laterally as well?

I however would build a 1/10 scale if thats what you decide on.

gasser would be fun,

my fayrot... in the real world!

Perhaps a gas outrigger or a mono. Come out to Vegas for the World Cup in November

Hello, I like to watch your videos, but I couldn't put a Spanish translation, I think that when you upload the video you should put this option

Hi Scott, I have a Dumas Scarab 377 that I bought and built in 1979, I believe. It has a OS Max .46 nitro engine. I've always wanted to convert it over to a solid shaft. Being 60 now I think with the lack of knowledge it would be difficult at best to complete. Is this something you'd be interested in doing???

at what point would you adjust the fin angle verses shimming the fin mount?

where can i get a cmb67

any chance that RCU will start running a 1/7 scale FE class?

Curious about where you located the weight in the sponson. Could it have been placed more in the tip of the sponson? It would take less weight to yield the same result. My build would shave 3oz but it does move the weight higher up. Maybe the higher CG of the weight not worth the weight saving?

Silly question, if you want the center of balance at the turn fin could you hang it from a string on the turn fin to see if it is level?

i think you need to build a modern hydro.

Build a Gas Scale

What type of wood and thickness do you use to build your boat?

The head-mounted camera made me dizzy...

build a round nose