r/rcboats

Built this semi-submersible RC payload prototype using a cheap donor RC boat and a fully custom 3D printed hull.

Designed in Fusion 360 and printed in PETG.

The idea was to experiment with:

- semi-submersible stability

- payload transport

- waterproof hull design

- rapid prototyping

It can carry small objects/drinks and was tested successfully in pool conditions.

Still a prototype, but a really fun project to build.

MJet Ragnarok boat, towed by a Redcat (Gen8) IH Scout II crawler.

I printed the boat and built it last Fall, but only recently got it properly powered with a HW 120a ESC, and 1800kv motor on 3s. Then I knew I needed to tow it, and the Scout has the grunt for it! I bought the trailer files and printed from PETG with TPU bunk pads. All new bearings and stainless hardware with brass inserts, and some beater busted Tamiya tires for now. Maybe later get some proper trailer tires.

Anyways, just gave it a little test drive this evening, hopefully a proper launch this weekend. I need to print a drop hitch for proper ride height, though I’m a bit suspect that the PETG hitch will hold up to off road trailering?!

I make carbon fiber parts and one of my customers is a rc boat company. Me and my customer were wondering if anyone would be interested in a carbon fiber sonic wake hatch. Price would be around 100-150$ made here in the USA with a quality clear coat finish. Here’s a few photos I made with AI. To get the point across what do you guy think? Would you get one?

I'm putting together a mjet Ragnarok 3d printed jet boat and I'm having an issue setting up the transmitter and ESC.

When I plug in the battery and pair the transmitter the motor spins when the throttle is at the neutral position and I have to hold it at full throttle to get it to stop so that I can unplug the battery.

I have used this transmitter and receiver with a smaller jet boat with no issues but now that I'm trying to use it with this new motor and ESC I'm having this problem.

I have tried adjusting the trim and doing the transmitter set up and reversing the throttle and changing the wiring from the motor to the esc. I'm hoping someone else has had this problem before and can help me out.

I took the 1/100 scale ekranoplan out for its first run this evening. It sits very low in the water. I think it is also underpowered. I did manage to get off a couple successful missile launches.

A handcrafted wooden fishing boat inspired by traditional Chinese river boats.

Built with dark walnut tones, detailed cabin structure, hand-tied fishing nets, and layered wooden decking. I wanted it to feel quiet and lived-in rather than overly polished — more like something resting along an old Jiangnan water town.

The small details are probably my favorite part:
hand-wrapped rope bindings
miniature fishing net setup
curved wooden hull lines
open cabin and layered roof design

Works nicely as desk decor, bookshelf display, or for anyone into maritime history, Asian aesthetics, or miniature craftsmanship.

I 3D printed this model of a Russian Ekranoplan boat/ground effects craft. This model has eight 15mm ducted fan motors and is primarily going to function as a ship. However, if it can generate enough speed, I have hydrofoils printed to simulate operating via ground effects. It also fires rockets out of the rear launchers.

Great condition with extras. 599$, 32128. Hmu if interested !

I own Arrma vehicles and looking to get a boat to use at our local lakes

first time running my 73” still some work left and for 3/4 throttle not to bad and im happy how she runs.

So I got the boat out on the water for the first run. It floats … great. But i had a hell of a time trying to get it going anywhere fast. It was just super loud and could hear the prop sucking air. I think it’s a weight problem so I’m moving batteries all the way to the back and esc but am I missing anything else ? No trim tabs right now fyi.

What’s the problem , I’m assuming need more weight in the back. I got up to 75% throttle on 6s and the thing wouldn’t move. Check my profile for more details.

Its suppose to connect with the apprentice but idk how to do. i have tried everything and got to know that apparentely my spektrum is us patent and my apprentice eu. the issue is idk how to install a eu firmware in my dx6. i have a project tmmrw and need help asap for this.

My newest RC is a scale Panga with a Yamaha F200. It still needs paint but I ran it for the first time yesterday. It just barely had enough power but runs at a good scale speed.