Im going to try another shot at subs need some info.  
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All Forums >> RC Boats >> RC Submarines >> Im going to try another shot at subs need some info. Page: [1]

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Im going to try another shot at subs need some info. - 3/24/2008 2:27:05 AM   
GreenAce92



Posts: 554
Joined: 5/3/2007
From: Fredonia, NY, USA
Status: offline 		Well last time i tried subs i could not get them to go down at all due to lack of balance(mine were dynamic subs using elevators to dive) so they were always too floaty and also my radio system would not go underwater. Sooo now ive got a 3ch system which im going to try rc subs with, ive got servos, umm an ESC for a speed 380 motor(used for planes with 7x2 props). NOw ive got some questions.

Sooo for waterproofing the shafts, if i just use like pen shafts with metal shafts, and use vaseline to waterproof it how deep could i go under. Im just going to waterproof the Rx and esc and batt in a bottle and have the wires sticking out, then i can just worry about the servos getting soaked and motor if my pen tubes dont work. Im thinking of using peanut butter jars like i did last time(more room) i will probably do 1 filled with the electronics and 1 with steering and powerplant then do 1 for the water(ballast) ill see what ive got to work with, i wish i had a better radio system that i know can go deep, all ive got is my 7ch Eclipse Hitec tx with 72mhz system for my planes. Soo im just going to use a 27mhz system for my rc sub, throttle, elevator and rudder. What is better for depth control? Front bow planes or elevators in the rear?

Thanks. HOpefully this time i can get a dive and drive around underwater. Il get videos pics etc...
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RE: Im going to try another shot at subs need some info. - 3/24/2008 6:30:28 AM   
subcaptian



Posts: 189
Joined: 5/10/2006
From: kasilof, AK, USA
Status: offline 		Nogo with the 27mHz, I think. If I am correct, as I usually am, that is an aircraft channel, and you need a 52mhz, I belive it is. I had to do the same thing with my heli 4ch remote.

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RE: Im going to try another shot at subs need some info. - 3/24/2008 4:50:19 PM   
Captain Nemo12



Posts: 784
Joined: 4/26/2004
From: Montreal, QC, CANADA
Status: offline
quote:

ORIGINAL: subcaptian

Nogo with the 27mHz, I think. If I am correct, as I usually am, that is an aircraft channel, and you need a 52mhz, I belive it is. I had to do the same thing with my heli 4ch remote.


Not correct captain, 27 mhz is fine. Never heard of 52mhz. Surface crafts usually use a 75 mhz radio, 27 mhz can be used for both aircrafts and ships.

< Message edited by Captain Nemo12 -- 3/24/2008 4:55:58 PM >

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RE: Im going to try another shot at subs need some info. - 3/24/2008 9:06:37 PM   
GreenAce92



Posts: 554
Joined: 5/3/2007
From: Fredonia, NY, USA
Status: offline 		I was just about to say the same thing, notice for Wally world products, they all use either 49 or 27mhz for planes or ground vehicles.

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RE: Im going to try another shot at subs need some info. - 3/24/2008 9:42:34 PM   
GreenAce92



Posts: 554
Joined: 5/3/2007
From: Fredonia, NY, USA
Status: offline 		Well the radio works i did a test depth and i was able to get down to at least 8in of water so i think i can go deeper. I have to work on my Peanutbutter jar waterproofing with the lid, otherwise i think im set and know what to do. Ill get some pics soon. Now the problems will be with the pushrod stuff, i heard that a tight fitting sleeve on a shaft will do the trick with some kind of lubricant.

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RE: Im going to try another shot at subs need some info. - 3/24/2008 10:13:30 PM   
subsinker



Posts: 393
Joined: 1/14/2004
From: Dwight, IL, USA
Status: offline 		Guys,

27Mhz will work but bear in mind that band is subject to interference.

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RE: Im going to try another shot at subs need some info. - 3/25/2008 12:17:28 AM   
GreenAce92



Posts: 554
Joined: 5/3/2007
From: Fredonia, NY, USA
Status: offline 		Yeah mine already acts up, ah well my sub will be a scratchbuilt soo perfection wont be required.

My radio system is for rc planes mainly but on 27mhz so ive got speed control in one direction only is that a bad thing?

< Message edited by GreenAce92 -- 3/25/2008 1:25:59 AM >

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RE: Im going to try another shot at subs need some info. - 4/14/2008 2:36:22 PM   
petn7


 

Posts: 138
Joined: 5/25/2004
From: City, PA, USA
Status: offline
quote:

ORIGINAL: GreenAce92

Yeah mine already acts up, ah well my sub will be a scratchbuilt soo perfection wont be required.

My radio system is for rc planes mainly but on 27mhz so ive got speed control in one direction only is that a bad thing?


Having a submarine that goes forward only is not a TERRIBLE thing, but your sub would be less fun to drive and certainly less functional. Also, reverse is basically your "brake" for a submarine.

Forward only ESCs are pretty small and cheap, though.

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RE: Im going to try another shot at subs need some info. - 4/15/2008 10:26:58 PM   
gulfstreamI


 

Posts: 371
Joined: 2/11/2004
From: Upstate New York, NY, USA
Status: offline
quote:

ORIGINAL: subsinker

Guys,

27Mhz will work but bear in mind that band is subject to interference.

The 27 Mhz ''AM'' is subject to a lot of interference. The 27 mhz ''FM'' however has far less interference problems.


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       Post #: 9

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