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Wicked_Jester · 09-22-2009, 04:39 PM

Im looking into buying a aeromarine hydro but I want to run electric instead of gas or nitro can anyone recommend a motor to run?

im planning on running the castle creations hydra watercooled 120 esc and 6 cell lipo or 16-20 cell nimh, but cant find a marine electric motor;)

Boogie · 09-22-2009, 04:49 PM

Don't mess with the Hydra 120's, go with an Etti 150, the 120's are notorious for smoking at the least provocation....especially on 6S. The Etti 150 Opto is much more forgiving if you happen to over prop your motor. Check out Offshore Electrics for the etti 150 esc, also take a look at the Feigao motors, good price but very good quality.

Wicked_Jester · 09-22-2009, 04:54 PM

forgot to mention that the boat is 45" long so its not small

Boogie · 09-22-2009, 05:00 PM

You'll need a bigger esc then, I would run at least a 200amp esc or higher like a Hydra 240. Motor, Feigao 540 8XL maybe?

Wicked_Jester · 09-22-2009, 05:17 PM

Quote:

Originally Posted by tcabner

You'll need a bigger esc then, I would run at least a 200amp esc or higher like a Hydra 240. Motor, Feigao 540 8XL maybe?

feigao's chart shows that the 540 8xl rate at a max amps of 83 amps so would the etti 150 amp esc work?

Boogie · 09-23-2009, 07:34 AM

Yeah, that combo would work very well, but in a smaller boat like something in the low 30's size range. The 8XL is really too small for that boat. I looked at the motors and maybe a 580 10 or 12L would be better suited for a boat of that size, especially one originally designed to be powered by a Zenoah gasser.

jetboat · 09-23-2009, 08:29 AM

your doing similar to what I am... Big boat and electric power. You might look at some of the big outrunner airplane motors... They fly 1/4 scale planes with them and out perform the gas counterparts.

Wicked_Jester · 09-23-2009, 01:04 PM

I actually ordered 2 hulls from aeromarine one is a cat which im going to put a 26cc gasser in and I got one of there thunderbolt hydro's im going to electrify

I will most like end up running nimh just to add a little weight back into it sence it was designed for the gasser and decent amount of gas, I want it to stay in the water and not turn into a low flying plane

jetboat · 09-23-2009, 03:04 PM

I bet if you do the math, running big 6s packs and a motor that's comparable in power to the gas, the weight will be close to the same or heavier.

STANG KILLA SS · 09-23-2009, 09:06 PM

Quote:

Originally Posted by jetboat

your doing similar to what I am... Big boat and electric power. You might look at some of the big outrunner airplane motors... They fly 1/4 scale planes with them and out perform the gas counterparts.

....until the 7 minute mark

and yes typically comparable E vs gas setups, the E power will be slightly heavier.

Wicked_Jester · 09-23-2009, 09:25 PM

thanks for the info guys

this is my first bigger boat build and trying to get the right stuff the first time!

09-22-2009, 04:39 PM	#1
Wicked_Jester RCC Addict Join Date: May 2006 Location: nor-cal Posts: 1,048	electric rc boat question Im looking into buying a aeromarine hydro but I want to run electric instead of gas or nitro can anyone recommend a motor to run? im planning on running the castle creations hydra watercooled 120 esc and 6 cell lipo or 16-20 cell nimh, but cant find a marine electric motor;)

09-22-2009, 04:49 PM	#2
Boogie Quarry Creeper Join Date: Jun 2008 Location: Central KY Posts: 473	Don't mess with the Hydra 120's, go with an Etti 150, the 120's are notorious for smoking at the least provocation....especially on 6S. The Etti 150 Opto is much more forgiving if you happen to over prop your motor. Check out Offshore Electrics for the etti 150 esc, also take a look at the Feigao motors, good price but very good quality. Last edited by Boogie; 09-22-2009 at 04:56 PM.

09-23-2009, 07:34 AM	#6
Boogie Quarry Creeper Join Date: Jun 2008 Location: Central KY Posts: 473	Yeah, that combo would work very well, but in a smaller boat like something in the low 30's size range. The 8XL is really too small for that boat. I looked at the motors and maybe a 580 10 or 12L would be better suited for a boat of that size, especially one originally designed to be powered by a Zenoah gasser. Last edited by Boogie; 09-23-2009 at 07:37 AM.

09-22-2009, 04:54 PM	#3
Wicked_Jester RCC Addict Join Date: May 2006 Location: nor-cal Posts: 1,048	forgot to mention that the boat is 45" long so its not small

09-22-2009, 05:00 PM	#4
Boogie Quarry Creeper Join Date: Jun 2008 Location: Central KY Posts: 473	You'll need a bigger esc then, I would run at least a 200amp esc or higher like a Hydra 240. Motor, Feigao 540 8XL maybe?

09-23-2009, 08:29 AM	#7
jetboat I wanna be Dave Join Date: Dec 2005 Location: Tax Nation Posts: 2,289	your doing similar to what I am... Big boat and electric power. You might look at some of the big outrunner airplane motors... They fly 1/4 scale planes with them and out perform the gas counterparts.

09-23-2009, 01:04 PM	#8
Wicked_Jester RCC Addict Join Date: May 2006 Location: nor-cal Posts: 1,048	I actually ordered 2 hulls from aeromarine one is a cat which im going to put a 26cc gasser in and I got one of there thunderbolt hydro's im going to electrify I will most like end up running nimh just to add a little weight back into it sence it was designed for the gasser and decent amount of gas, I want it to stay in the water and not turn into a low flying plane

09-23-2009, 03:04 PM	#9
jetboat I wanna be Dave Join Date: Dec 2005 Location: Tax Nation Posts: 2,289	I bet if you do the math, running big 6s packs and a motor that's comparable in power to the gas, the weight will be close to the same or heavier.

09-23-2009, 09:25 PM	#11
Wicked_Jester RCC Addict Join Date: May 2006 Location: nor-cal Posts: 1,048	thanks for the info guys this is my first bigger boat build and trying to get the right stuff the first time!

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