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Saltwater Electric outboard or jet drive - 3/12/2004 5:03:52 AM   
Incognito


 

Posts: 4
Joined: 3/11/2004
From: X, ARUBA
Status: offline 		Ok I never had an r/c boat only cars.....
I am going to built hull based on the villain and I want to put dual outboards (kyosho dolphin...already got 1) or dual jet drives

I am from the Caribbean so only offshore saltwater here...

which drive would you recommend best and why?

which motor should I look for I am not looking for breaking any records here so decent/good speed and long run times is my goal...

what else should I take in consideration?

thanks

< Message edited by Incognito -- 3/12/2004 5:04:42 AM >
       Post #: 1

RE: Saltwater Electric outboard or jet drive - 3/12/2004 10:11:45 PM   
Incognito


 

Posts: 4
Joined: 3/11/2004
From: X, ARUBA
Status: offline 		No one know knows nothing about boats?

(in reply to Incognito)
       Post #: 2

RE: Saltwater Electric outboard or jet drive - 3/12/2004 10:22:36 PM   
ooooo



Posts: 440
Joined: 9/22/2003
From: FishBlahhhhhhhh, HEARD ISLAND
Status: offline 		Yo Incognito....welcome to rc boating. First off....nitro boat engines are water cooled, meaning that the salt water has to be used to cool the engine...that'a a big no no...unless you flush the engines with fresh water everyday. The possibility of rust still exist, cause the salt spray gets everywhere. If you use electric...same problem with salt.
Gasoline engines are water cooled and air cooled. Same problem.
No use getting into the rc boat hobby to run in salt water......servos, receiver etc cost alot to replace and can fail from internal rust.
Ok....having said that....if you have a pond in Aruba where you can run your boat, then it's ok, providing it's fresh water.
Oh...one other thing...I didn't realize that Aruba was part of the Caribbean

(in reply to Incognito)
       Post #: 3

RE: Saltwater Electric outboard or jet drive - 3/15/2004 11:23:47 AM   
pompebled


 

Posts: 1945
Joined: 1/31/2004
From: Sneek, NETHERLANDS
Status: offline 		Hi Incognito!

Running electrics in salt water needs good preparation:

- Use a radio box to protect your radiogear, make sure that the steering rods are made of stainless steel and sealed off properly
- You may even consider putting your running batteries in a watertight compartment, salt water and electric current don't go well together.
- The outboards you mentioned can't be waterproofed, they won't last very long.
- Inboard drive is the way to go, use a relatively cheap 700 Neodym, so it isn't too expensive to replace.
- Make sure, that all hardware is stainless steel or bronze, if you missed one, the rust will tell you where it used to be...
- Keep the prop shaft well greased.
- Rinse thoroughly with freshwater after every run (not the day after!).

Having said this, it's still hazardous to run in saltwater, so take in account that you may lose the odd boat...

Best regards, Jan.

(in reply to Incognito)
       Post #: 4

RE: Saltwater Electric outboard or jet drive - 4/8/2004 5:57:55 PM   
xplayer930


 

Posts: 659
Joined: 2/24/2004
From: long island, NY, USA
Status: offline 		I run my boats nitro boats in salt water an i have the radio gear sealded up tighter than a frogs A$$!!!

(in reply to pompebled)
       Post #: 5

RE: Saltwater Electric outboard or jet drive - 4/10/2004 1:36:08 AM   
Pagemaster



Posts: 307
Joined: 2/19/2003
From: chelsea, MA, USA
Status: offline 		We run several boats in the ocean. Electric outboards are not a system I would recommend. The salt will ruin the motor in short order.
I would run a inboard that is well sealed.

Steven Vaccaro
www.OffshoreElectrics.com

(in reply to xplayer930)
       Post #: 6

RE: Saltwater Electric outboard or jet drive - 4/14/2004 2:10:23 PM   
BPlanchon


 

Posts: 2
Joined: 4/14/2004
From: CAPE CORAL, FL, USA
Status: offline 		go with gas youll need the power i run mine at the beach every day in offshore class and it can be just as cheap i use homelite weadeater motors i find around town for like $30 then just throw a water cooled head on it and a 48" or more deep vee hull with 5" stingers try these links for info on racing and as for the salt water just like a real boat ya you have to rinse the boat treat it like a real one flush it every time takes just a minute and also becouse of the choppy water i would use a i/o drive or a catamaran drive (surface drives just wont stay in the water in those conditions www.whobbies.com www.namba.com

<Edited to comply with RCU Posting policies>

< Message edited by Justaddwata -- 11/18/2008 3:34:22 AM >

(in reply to Incognito)
       Post #: 7

RE: Saltwater Electric outboard or jet drive - 5/9/2004 9:43:57 AM   
rclooney



Posts: 447
Joined: 3/11/2003
From: southport, UNITED KINGDOM
Status: offline
quote:

First off....nitro boat engines are water cooled, meaning that the salt water has to be used to cool the engine...that'a a big no no...unless you flush the engines with fresh water everyday.
i would have said what im going to say sooner if i was online. im making a scale version of a bayliner trophy fishing boat. because it is so big (7th scale) it has to have some sort of engine power. anyway, i have the idea and knowhow to make a heat exchanger system out of brass. it wont be affected by salt water too much, can be soldered together and will allow the boat engine to be run out of water. if any one wants and help with an exchanger, pm me and ill get back to you asap.

(in reply to BPlanchon)
       Post #: 8

RE: Saltwater Electric outboard or jet drive - 5/9/2004 2:44:00 PM   
LtDoc


 

Posts: 1750
Joined: 11/29/2003
From: McAlester, OK, USA
Status: offline 		Incognito,
The biggest problem (see the other posts) is with the salt, and getting rid of it as soon as possible. Next, do like the 'big guys' do to combat electrolisys, use a zinc(?) 'do-hicky' on the rudder (C.R.S. is really hitting me lately, eg:'do-hicky'). If running time is your priority then I'd go with a gas engine, unless you have lots of space for batteries (and lots of batteries). Seal things! Use stainless steel fittings. Wash it off/out religiously. And lastly, throw more money at it...lol
- 'Doc

(in reply to rclooney)
       Post #: 9

RE: Saltwater Electric outboard or jet drive - 10/11/2005 4:32:59 AM   
jakro1972


 

Posts: 2
Joined: 5/9/2004
From: Bradenton, FL, USA
Status: offline 		I have a Stock Villian IV boat that is water cooled and I run it in the saltwater her in Florida. Not really a problem! I just rinse it off on the outside, spray the inside electronics with CRC 626 spray and keep the moving parts lubed. I have changed out as much of the fasteners with stainless steel, set screws, radio tray screws, motor screws, and I use atroflight zero loss gold plated connectors for the batteries. Looks and runs as good now as it ever did. The stock outdrives are the lowest maintenance. If you can fit one or 2 outboards behind it I'm sure the Dolphin is fine. I like the Graupner 650. It uses a flex shaft like the dolphin and has an access cover that you can remove to regrease the flex shaft. Something like that would be easy maintenance. Make sure you use counter rotation with your motors and props for max thrust in that rough sea water.

(in reply to Incognito)
       Post #: 10

RE: Saltwater Electric outboard or jet drive - 7/31/2006 6:42:49 AM   
Quicksilver



Posts: 743
Joined: 7/27/2006
From: Oneonta, NY, USA
Status: offline 		yeah ive run my villain 4 in salt water many of times....... just rinse. Currently installing a graupner jet-drive int the hull, to replace the dual outdrives. cant see why you cant do it. a jet drive has no u-joint, doesnt need a metal impeller and doesnt need complcated trim hardware. I would think it would be better in salt water than a regular drive, ditch the outboard idea. I would suggest an intake grate if you go jet-drive, there a lot of crap in the ocean.

< Message edited by quicksiler -- 7/31/2006 6:45:00 AM >

_____________________________

Game''s over, losers! I have all the money. Compare your lives to mine and then kill yourselves. -Bender

(in reply to jakro1972)
       Post #: 11

RE: Saltwater Electric outboard or jet drive - 5/24/2008 8:15:57 PM   
hqdby1


 

Posts: 1
Joined: 5/24/2008
From: sandwitch, UNITED KINGDOM
Status: offline
quote:

ORIGINAL: Incognito

Ok I never had an r/c boat only cars.....
I am going to built hull based on the villain and I want to put dual outboards (kyosho dolphin...already got 1) or dual jet drives

I am from the Caribbean so only offshore saltwater here...

which drive would you recommend best and why?

which motor should I look for I am not looking for breaking any records here so decent/good speed and long run times is my goal...

what else should I take in consideration?

thanks

if you really what to go salt water than make sure you have good seels and a lot of bulk heads and use out board [jets are har to cleen] and dont use water cooling or IC..

(in reply to Incognito)
       Post #: 12

RE: Saltwater Electric outboard or jet drive - 5/26/2008 3:26:58 AM   
Quicksilver



Posts: 743
Joined: 7/27/2006
From: Oneonta, NY, USA
Status: offline 		first of all, you dug up a 2 yr old thread, which of course I read all the way to my own 2 yrs old reply. but aside from that, a jet unit really should be easier than an outboard in saltwater. Mainly because the outboard is never really sealed, wires must come out of the cover, salt water can get in and if you didnt remove the cover and clean the "powerhead" every time, you'd ruin it in no time. A jet unit is 90% plastic, uses a stainless steel shaft, plastic impeller and a brass stuffing tube. I dont even think you really would need to rinse out a jet for any reason other than seaweed getting in. With any electric boat the main concern is going to be whether or not water is entering into the electronic and motor area. With electrics saltwater wont affect the cooling system, unless by some strange reason you use steel pipes or are use a water jacket instead of a simple coil.

Gas/nitro boats are a whole different ball game. Personally with those I wouldnt take the risk unless of course you could simply accept the risk and take all necessary steps to ensure you dont ruin the motor.

_____________________________

Game''s over, losers! I have all the money. Compare your lives to mine and then kill yourselves. -Bender

(in reply to hqdby1)
       Post #: 13

RE: Saltwater Electric outboard or jet drive - 11/16/2008 4:30:42 PM   
kihei11


 

Posts: 173
Joined: 8/14/2004
From: Kihei, HI, USA
Status: offline 		Yes salt water is hard on the boat, rinse it out often wd-40, wipe down all the time, grease shafts,expect to replace stuff or your whole boat occassionally.
But WOW is it fun to cheat the waves out of taking your boat down, jumping , riding waves, seeing big fishes' underwater wakes chasing my boat at sunset. so fun !!! I have idiot friends that spend more money and time drinking than out having fun with their kids and boat like I do. Just my 2 cents, Take care all, Randy Maui, Hawaii

(in reply to Quicksilver)
       Post #: 14

RE: Saltwater Electric outboard or jet drive - 11/17/2008 1:17:01 PM   
Time4420


 

Posts: 3
Joined: 11/5/2008
From: NewBedford, MA, USA
Status: offline 		...and use marine tinned wire, solder and use heat shrink tubing on the soldered connections.

(in reply to kihei11)
       Post #: 15

RE: Saltwater Electric outboard or jet drive -