New Pro Boat Impulse 32" Brushless Deep-V RTR

[Yomiel]

I just took mine for its first run, and I think I may be having similar leaking issues.

I'm also wondering if any other owners could comment on these imperfections I noticed in the rear of the hull. There's some very slight bulging in the fiberglass along the back corner. I haven't owned many fiberglass models, so I'm not sure if this is par for the course or the sort of defect I should be complaining to Horizon about (it certainly doesn't seem like a functional problem). Here are a couple pictures:
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[alvinm]

It's hard to tell whether it will get worse or not, but it definitely shouldn't be there. Send Horizon those pics to see what they say. Maybe they'll send you a whole new boat.

[Yomiel]

It's hard to tell whether it will get worse or not, but it definitely shouldn't be there. Send Horizon those pics to see what they say. Maybe they'll send you a whole new boat.

Thanks for the advice. I shot them a support request.

[Yomiel]

In case anyone's curious, Horizon ordered me a replacement hull after I sent them pictures of the defect.

Also, I was able to fix my leaking by tightening a few of the transom bolts and supplementing some of the sealant along the back panel with super glue.

The boat's a ton of fun once it's working, but it seems like these guys do not have their manufacturing process figured out...

[alvinm]

So did you send your boat back with electronics or do you have to gut your boat and reinstall it in the new hull?

[Yomiel]

So did you send your boat back with electronics or do you have to gut your boat and reinstall it in the new hull?

The latter. They offered to take the boat back and "maybe" replace it as an alternative, but I really didn't want to lose the two or so weeks (Horizon is warning of covid-related service delays at the moment).

[alvinm]

Yeah, I know it was probably a little bit of a pain getting stuff in and out of this hull, but I would have done the same.

[jhurlbert]

So after weeks of waiting to hear from horizon about my leaking water jacket they are going to send me a new motor with jacket (all I asked them for was some new o rings but they probably cant get just them). Im going to see if i can pull the jacket off of the leaking one and maybe put some silicone grease on the o rings to get it to seal. I really dont want to have to solder on a new motor, the factory solder and shrink wrap looks really nice

[alvinm]

In the meantime, just put a bead of silicone along the edge of the jacket. It was amazing how much water used to seep through the jacket before I sealed it. So far so good.

[jhurlbert]

So i received my new motor with jacket from horizon. I then pulled my old jacket off my old motor to see if i could fix the leak. The o rings looked good so i removed them from the jacket and coated them in some motocraft silicone brake caliper grease that i had (good stuff). I then re installed and bench tested with a mouth full of water and some spare water line. Not a drop. So i think its fixed with just a little bit of grease on the o rings. Now i have a brand new spare motor with cooling jacket.

I also learned during this that the motor is not soldered to the esc (thats what i thought it looked like) there is actually connectors that plug into the esc. I haven’t seen that before

[alvinm]

Yeah after I epoxied the hell out of the transom, it turns out to be a simple leak from the water jacket. I've spent so much time trying to get my BJ 42 to work that I haven't given this boat enough love, but that's gonna change.

[T.S.Davis]

I like love the lines of the hull.

Some observations....wonder why the stinger is SO for offset. Through hull water pick up? Odd for a production boat.

Someone mentioned our local hobby may have one. I'll have to swing by there.

[alvinm]

My Ms. Geico 36 has two through hull pick-ups. It seems like you get way for more water through the esc and motor jacket compared to the rudder pick-up.

[Panther6834]

I know this is going to sound like a "strange" question to some...but, has anyone run the boat on 4S? Then reason I'm asking is, for the P-Limited & P-open classes, NAMBA limits boats to 4S, which can be two 2S packs in-series, or a single 4S pack, or two 4S packs in-parallel.

Theoretically, this boat *should* be able to compete in NAMBA-sanctioned races, under P-Limited or P-open, depending on the motor...but, I am curious as to whether, or not, this boat could actually BE competitive. I'm guessing that the hull probably weighs too much to make this competitive in the P-Limited class (if the motor already is, or were replaced with, a 3660, or shorter)...but, if a longer 36mm can, or a 40mm can, were used, could it actually be a competitive P-open mono?

Speaking of the motor, can anyone who already has the Impulse 32 confirm what the motor's actual specs are (diameter, length, and kv), as there is no consistency in the info on the Horizon Hobby website & the manual. Some sections state 3682, while others mention 3680. As for what the kv is, both 1900kv & 2000kv are mentioned.

[jhurlbert]

So i had perfect conditions today and the boat was running really well. Was making full throttle 6s passes but i think I ended up hitting thermal protection. The boat cut back on the power and then i let it sit for 30 seconds in the water without shutting it off and then i had full power again.

Also after fixing my leaking water jacket the boat was bone dry after the run