Aircraft ESC???

[Skyshark]

Hey Guys
Can I use an aircraft ESC in an electric boat instead of the clunky, servo-activated thing that came with a Neptun kit??
Will the ESC work when the TX commands reverse??
Jim

[pompebled]

Hey Guys
Can I use an aircraft ESC in an electric boat instead of the clunky, servo-activated thing that came with a Neptun kit??
Will the ESC work when the TX commands reverse??
Jim

Yes, Jim,

A flight ESC will work fine in a boat, just keep it dry.
If you want to have reverse, the esc should have that function, otherwise nothing happens when your TX gives the reverse command...

There are small ESC with reverse, designed for use in boats available however.

In my raceboats I prefer not to have reverse, in (semi)scale boats it's a must.

Regards, Jan.

[thething84]

if u can it is better if u can go for a marine esc. as alot of these are watercooled as ina boat hull there is no airflow to help cool the esc.

[Ghost 2501]

skyshark, I have a Graupner neptun, the speed controller in her is an Mtronics Marine 15, has a tamiya connector, two motor leads (with "female" 4mm plugs), and an Rx lead, gives 100% forward, around 60% reverse. also you can do away with the Rx battery pack as to put it simply the ESC powers the Rx

just press the button to set it up, and you are away. you can get a 2x1.5x0.5 digital esc that will do 50A, like the Mtronics it is BEC as well, meaning no seperate RX battery.

price: £15

[Skyshark]

Thanks All
Sorry for the delay in response. Never got notification of replies.
Where can I get a marine ESC??
Jim

[Brutusjm]

Jim,
Plenty of places carry marine ESC. Harbormodels, Towerhobbies, Macksproducts to name a few. I have a wide range of ESCs in various ships. Brands I have used: Mtronik,Electronize (pricey), and Pro Boat are currently installed. I attached the link for the Pro Boat ESC as it's fairly inexpensive and seems to get good reviews. I purchased mine at LHS just to help keep him in business but paid a few bucks more for it. Hope this helps.
Jason

http://www.mackproductsrc.com/speed_control_p2.htm

[Umi_Ryuzuki]

Here is the one Ghost is using,
http://hobbypeople.net/gallery/159101.asp
I believe I have one of the Sonik eco 20 models.
Pretty good for an economy model. What is nice is that they are all "potted" in polyurethane and completely sealed and suppposedly water proof.
And it is Mtroniks with a "K".
I used to have a hard time finding them becuase I kept spelling it wrong?
http://hobbypeople.net/mfr/MTRONC01.asp

The Hobby shop guys said he had some difficulties with the overheat cut out but I do not know which motors they were using.

[ol'guy]

Good ESC info on Pat's Page http://www.geocities.com/y2patmat/ per his info, I got the ProBoat ESC and it works great. I got mine at Horizon Hobby. http://www.horizonhobby.com/Shop/ByCategory/Product/Default.aspx?ProdID=PRB2314

[Skyshark]

Thanks Guys
Your info is outstanding! I was into boats growing up. Am into planes now, but getting back into boats as a side hobby. Built a 6 ft PT boat from scratch years ago, have a Neptun I am working on now. Hope to get one of those Midwest ARF Lobster Boats soon.
The advances I see from your links is impressive! Thanks again for pointing me in the right directions!!
Jim

[Melih PEKOL]

Jim,

as you are a flyer and not want to invest much for marine (in short term:), if have Tx with 3 channel
you can use aircraft ESC (only FWD) and servo reversing switch in between ESC and motor wiring:
Fwd - idle/stop - switch to reverse - rev up....

mp

[Ghost 2501]

Thanks Guys
have a Neptun I am working on now. Hope to .....

is that the Graupner neptun freighter, or the lil robbe neptun???? can we have some pics plz

Ghosty

[Ghost 2501]

by the way, ya cant use the same TX in ya plane as your boat, its illigal, just incase you forgot that. you need the surface band.

[Skyshark]

It's the Graupner Neptun freighter and I have a surface band TX / RX.

[Majortomski]

In an odd reversal of this thread, I use a Graupner marine ESC from Hobby lobby in my RC Blimps to control the yaw fan. Not quite linear but it gets the job done.

T

[Ghost 2501]

skyshark, I have the neptun freighter, and it is a joy to sail, you will love it!

[Skyshark]

Thank you Ghost
Your Neptun looks great! I plan to put the superstructure amidships and modify the rear crane to tow a fishing lure with a release clip. That way my fishing buddy and I can have cocktails on the pier where we vacation in Maine and troll for bass in front of the campground.
How fast does the Neptun go when built stock? Any stability problems?
Jim

[Ghost 2501]

thanks skyshark,

she is stable enough, however just dont sail her in water that is too choppy, she only has a 2" freeboard. as regards stability, its not tooo bad. I however do not recomend using her as a fishing line carrier, for that id probably use a bigger boat. she is not however meant for the ocean, she is a calm water lake boat.

her top speed is ok, a lil over scale, but she is no race horse. on a 7.2v volt battery, she will run for quite some time.

to do what you want to do, try the southampton RTR tug, as it is a wider hull than the neptune, and has a good, strong hook. it is an wasy kit to build.

[Skyshark]

Because of the narrow beam I would never use thr Neptun in rough water. My concern would be the Neptun heeling over in a turn towing a fishing lure. We can change lures to match the speed of the ship if it is too slow or too fast. Because it is small and doesn't take up much space is why I was considering taking it camping.
I would much rather take the Midwest ARF Maine Lobster Boat. Larger, wider and built like the lobster boats we have here in New England. She could take rougher water and heeling over would be no concern. I just cannot justify spending $350 for a laugh.
I may buy it anyway. Tug boats don't really interest me and because of my work schedule there is no time for building kits or from scratch.
Any other suggestions?
Jim

[Ghost 2501]

The Graupner southampton is fully READY TO RUN, has a hook on the back, and a small hatch to get at the rear servo

it also has locking compartments that are watertight, and the design of the superstructure I think is designed to make it self righting, (as long as the gret hatch over the engine bay is in place and locked).

but as regards the neptune, its great on steering cources :)

[Skyshark]

Thanks Ghost
I can't seem to find it for sale state-side. Any idea who would have it over here and approximate cost?

[Ghost 2501]

well its £215, so thats probably about 400USD

[Brutusjm]

Skyshark,
If you looking to go fishing...might want to check this little guy out. Cheap and effective, not quite ready to run but close. The video on the home page shows it taking a nice wave and surviving.
Jason



http://www.vac-u-boat.com/BassBoat1.htm

[Skyshark]

Brutus
That is histerical!! That is exactly what I am talking about! The only difference I I will use a release clip so when a fish hits, the line will pull off and my fishing buddy can fight the fish by rod and reel.
Thanks for the belly-laugh! I had hot coffee shooting out of my nose when I saw that this morning!!
Jim