brushless conversion on "miss vegas" hydroplane

[Genettico]

Im gonna hit the sack man! Nice chatting!

See ya tommorrow!

[RYDEFAB]

Thanks, happy you like it.

Did you fry your ESC? What's the Amp rating on it? What prop?

yeah, you can say that alittle...................."fry" is alittle understatement. burned the Future 18.46WK esc yesterday on 5s lipo's. some salt water got on it and............................"burn baby burn!!!!!!!!!!"





one of my lipo's were right next to it and burned through the shrink wrap. lipo's okay, just got to rewrap it again with shrinkwrap.



got to say though, on 5s lipo's......................thing was an animal!!! i wish i got some pics and vids of it but had some mishaps. gonna go again next week with a new esc and 4s instead. i'll guarentee i'll get some pics or vids.

[AntronX]

Ouch! that sucks.

If you are running your boat in salt water, you really need to make sure the controller board and electronics are coated with conformal coating. Controllers not made for boats are not coated at all. Salt water will eat anything. Do you wash off your boat with fresh water after running it?

[AntronX]

Found some info on this ESC:

future-18.46K:
For 6-18 Ni-Cd resp. Ni-MH cells resp. 2-5 LiPo cells. For motors up to 46A

With that motor was definitely pulling more than that at 5S LiPo. You need to get the ESC rated for at least 100A for this setup.

What prop were you using when it burned up?

Castle's Hydra 120 should be good for your setup. Just MAKE SURE you place it inside waterproof plastic box, to keep any salt water from ever touching it. Before running your boat, make sure that box is waterproof by holding it underwater and checking for leaks. Salt water WILL destroy that ESC first time it gets into it. It will do that to any ESC. Also, wrap your radio receiver in the air balloon and place it inside same box. Double protection can't hurt.

[RYDEFAB]

Ouch! that sucks.

If you are running your boat in salt water, you really need to make sure the controller board and electronics are coated with conformal coating. Controllers not made for boats are not coated at all. Salt water will eat anything. Do you wash off your boat with fresh water after running it?

yeah, i'm running it in saltwater............and yes, i am washing it with freshwater all the time. i know about the in's and out's of r/c's and water, been in this hobby for awhile and i am surrounded by saltwater all the time. been living around it my whole life...........work around it, play in it, etc. just wish we had more fresh water ponds or lakes like you guys.

but it's all good about the esc though. if i had paid $200 for it, then i wouldn't have tried it. it was only $50 so i had to give it a try, and it was worth every penny of it. thanks for the advice though.

[RYDEFAB]

Found some info on this ESC:

future-18.46K:
For 6-18 Ni-Cd resp. Ni-MH cells resp. 2-5 LiPo cells. For motors up to 46A

With that motor was definitely pulling more than that at 5S LiPo. You need to get the ESC rated for at least 100A for this setup.

What prop were you using when it burned up?

Castle's Hydra 120 should be good for your setup. Just MAKE SURE you place it inside waterproof plastic box, to keep any salt water from ever touching it. Before running your boat, make sure that box is waterproof by holding it underwater and checking for leaks. Salt water WILL destroy that ESC first time it gets into it. It will do that to any ESC. Also, wrap your radio receiver in the air balloon and place it inside same box. Double protection can't hurt.

the esc's the same as the one you posted, except for the "K". mine was water cooled. the prop i was using was the Grim Racer Miss Vegas hop up one (forgot the part #). i was looking a the Hydra 120, but i got the Aqua Craft brushless esc from my friend (it was free). i have a waterproof box that i use for my 2.2 rockcrawler and it works perfectly. i do do the balloon thing to actually all my rx's in my crawlers and scalers. i know what saltwater can do, try living with it all year round.................you think that's rain when it's raining and windy?.......you'll know when you taste it.

[Jeepers]

Castle's Hydra 120 should be good for your setup. Just MAKE SURE you place it inside waterproof plastic box, to keep any salt water from ever touching it. Before running your boat, make sure that box is waterproof by holding it underwater and checking for leaks. Salt water WILL destroy that ESC first time it gets into it. It will do that to any ESC. Also, wrap your radio receiver in the air balloon and place it inside same box. Double protection can't hurt.

The Hydra 120 is already coated in conformal epoxy so its water proof, this is coming from the castle creations techs.

balloons hold in condesation and cause receivers to rust I have seen several failures in the clubs boats due to this reason, Buy some DP 270 from OSE and coat the circuit boards, nice and water proof.

[Jeepers]

yeah, you can say that alittle...................."fry" is alittle understatement. burned the Future 18.46WK esc yesterday on 5s lipo's. some salt water got on it and............................"burn baby burn!!!!!!!!!!"





one of my lipo's were right next to it and burned through the shrink wrap. lipo's okay, just got to rewrap it again with shrinkwrap.



got to say though, on 5s lipo's......................thing was an animal!!! i wish i got some pics and vids of it but had some mishaps. gonna go again next week with a new esc and 4s instead. i'll guarentee i'll get some pics or vids.

thats not water damage thats TO MANY AMPS!!!

[Jeepers]

The 49mph record was on 4s! My 6s is 63mph!

wow this are the speeds I have to look forward to on my Miss Vegas 49 mph on 4s. My N2 sport hydro runs just as fast(49.9) on half the voltage.

I guess i had better finish my Miss Vegas hull mods and throw her in the water.

[AntronX]

The Hydra 120 is already coated in conformal epoxy so its water proof, this is coming from the castle creations techs.

Sure, the boards may be coated, but little tiny weeny board connectors that connect logic board to power board are not. After having mine flooded and under water for 10 minutes, those things were soaked and contacts were black from oxidation. I use silicone sealant now to keep those connectors waterproof and so far it's working great.

balloons hold in condesation and cause receivers to rust I have seen several failures in the clubs boats due to this reason, Buy some DP 270 from OSE and coat the circuit boards, nice and water proof.

No, no condensation problems here. What i think happened was the water getting in along the wires that go into the balloon. I had the same problem. After running the boat all day, i took the balloon off and found moisture inside resembling condensation. I solved it by applying silicone sealant to all the wires at the spot where they will be bundled, covered by the balloon tip and wrapped with rubber band. The silicone will fill every void inside the wire bundle. I've ran this way for a week, opened it up and it was totally dry inside.

I coated my receiver with the proper silicone based conformal coating made for circuit boards. It can be dissolved very easily with removal solution in case of repairs. Got it at my local electronics shop for $15. Worth it.

[Jeepers]

[QUOTE=AntronX;48564]Sure, the boards may be coated, but little tiny weeny board connectors that connect logic board to power board are not. After having mine flooded and under water for 10 minutes, those things were soaked and contacts were black from oxidation. I use silicone sealant now to keep those connectors waterproof and so far it's working great. QUOTE]

Those tiny connectors are completly covered on mine they may have missed that on yours......




[QUOTE] No, no condensation problems here. What i think happened was the water getting in along the wires that go into the balloon. I had the same problem. After running the boat all day, i took the balloon off and found moisture inside resembling condensation. I solved it by applying silicone sealant to all the wires at the spot where they will be bundled, covered by the balloon tip and wrapped with rubber band. The silicone will fill every void inside the wire bundle. I've ran this way for a week, opened it up and it was totally dry inside. QUOTE]

wait a while you will get condensation in there... been there done that with the ballon thing and silicone, ruined a receiver. you took yours out after a week, some people leave them in the ballons a long time.

[Genettico]

wow this are the speeds I have to look forward to on my Miss Vegas 49 mph on 4s. My N2 sport hydro runs just as fast(49.9) on half the voltage.

I guess i had better finish my Miss Vegas hull mods and throw her in the water.

Power to weight ratio! I dont think 49mph is bad for this hull and with this weight!Your N2 is much lighter this needs less power to make it run faster! Maybe I misunderstood your comment! It sounds like you think the MV is too slow with this setup?

[Jeepers]

Power to weight ratio! I dont think 49mph is bad for this hull and with this weight!Your N2 is much lighter this needs less power to make it run faster! Maybe I misunderstood your comment! It sounds like you think the MV is too slow with this setup?

I am not dogging your speeds they are better then I got with my hull!!! but yes i do think that is slow for a 4s powered hydro.

In a similar size mono, actually heavier than the MV, mid 50s is easy, a good P sport hydro should see 60+ easy

are you running 4s2p?? I read through your posts again but did not see if you are.

[Genettico]

Yes 4s2p! I dunno I havent seeing anyone hitting 60's on this hull on 4s! it also depends on the motor type,KV, prop,and actual running conditions! If you have the best hardware, with the best motor, the best ESC for application, running on perfect conditions and the right prop I can definately see you can make this hull run mid 50's all day on 4s2p! With the setup I have I think the speed is decent! I think If I put a hydra 240 with a neu 1515 (2300kv) and a different prop I can see faster speeds (MID 50'S) on 4s! So... you could have 2 identical boats running on 4s2p and one is faster by 10mph. It all comes down to what you have under the hood, and the total power to weight ratio!
You can easily gain 3 to 5mph just on changing to a higher KV motor! My 8xl is (2084kv)!

What do you run in your hydro?

[Jeepers]

Yes 4s2p! I dunno I havent seeing anyone hitting 60's on this hull on 4s! it also depends on the motor type,KV, prop,and actual running conditions! If you have the best hardware, with the best motor, the best ESC for application, running on perfect conditions and the right prop I can definately see you can make this hull run mid 50's all day on 4s2p! With the setup I have I think the speed is decent! I think If I put a hydra 240 with a neu 1515 (2300kv) and a different prop I can see faster speeds (MID 50'S) on 4s! So... you could have 2 identical boats running on 4s2p and one is faster by 10mph. It all comes down to what you have under the hood, and the total power to weight ratio!
You can easily gain 3 to 5mph just on changing to a higher KV motor! My 8xl is (2084kv)!

What do you run in your hydro?

Now it would be 4s2p hydra 240 or MGM 16024 esc 1521 1.5d before
12 cells 1521 1.5d 1980kv x442 40 mph I have not had this hull in the water since the beging of last year this exact same set up ran in the mid 40s low 50s in a mono, of same size and heavier weight.

Now that I have lipos I still have not had her in the water! this is why I am modding my hull, 50s on 4s2p wouldnt satify me! I have plenty of power to throw at it but it doesnt seem worth the effort, if on 6s your only hitting 63mph.