Pull switch on hull

[scooterP]

Ok guys, I see several pictures of boats on here that have the little pull knob switches sticking out of the transom of the hull.

Are they being used to cut off the rx only? I always just hook up the batteries and of course everything is on then. I've seen the jumper type of battery cutoff and understand that.

Is this just a switch to turn on and off the rx? I didn't know.....so I asked.

Thanks

[egneg]

Yes it's for the RX.

http://www.offshoreelectrics.com/pro...hp?prod=dh-203

[scooterP]

So, is it mostly used when running a seperate battery for the rx?

[egneg]

That is how I have used it.

[scooterP]

OK. That's what I wanted to know. Thanks for the quick replies.

[TRUCKPULL]

If you use the BEC in the ESC to power the receiver.
You can cut the red wire going into the receiver from the ESC
Wire the switch in line at this point.
The switch then controls the power to the recever.

Larry

[Rumdog]

I never understood it. I know what it does, but what's the point. You have the hatch off to plug in batteries, then plug in the rx battery and tape up. You need to pull the tape to diconnect lipos after a run anyhow, so how is it convenient to have the switch outside the hull?

[Diegoboy]

Get one of these. (Third one from the top).



I sure would like to have a few

Specs:

SPS - SafetyPowerSwitch 34V 60/120A

• Electronic safety switch with anti flash protection.
• Electronic safety power switch for electric power systems
• An anti-flash-circuitry prevents the dreaded sparks during connecting the battery
• Separates the motor from the battery. The electric motor drive remains inactive and therefore non hazardous until activation
• Finally you can work on your model without the fear of suddenly running motors
• Shapely switch transmitter looking like a gasoline valve closer for simple mounting in the fuselage (an invention from EMCOTEC)
• Completely contactless switching operation with an external magnet
• An integrated ultra bright LED indicates the power-on state optically
• High-class silicone connection cable of AWG 11 thickness
• 6-fold multilayer-board with up to 9 square mm copper width
• For 2S up to 8S LiPo batteries (6V ... 34V)
• 60A continuous current and 120A peak current - perfect for electric gliders, motor models and helicopters

[egneg]

Get one of these. (Third one from the top).



I sure would like to have a few

Specs:

SPS - SafetyPowerSwitch 34V 60/120A

Electronic safety switch with anti flash protection.
The original! From the inventor of the "gas cap" switch
Electronic safety power switch for electric power systems
An anti-flash-circuitry prevents the dreaded sparks during connecting the battery
Separates the motor from the battery. The electric motor drive remains inactive and therefore non hazardous until activation
Finally you can work on your model without the fear of suddenly running motors
Shapely switch transmitter looking like a gasoline valve closer for simple mounting in the fuselage (an invention from EMCOTEC)
Completely contactless switching operation with an external magnet
An integrated ultra bright LED indicates the power-on state optically
High-class silicone connection cable of AWG 11 thickness
6-fold multilayer-board with up to 9 square mm copper width
For 2S up to 8S LiPo batteries (6V ... 34V)
60A continuous current and 120A peak current - perfect for electric gliders, motor models and helicopters

Those are the same ones used by Grail in the Platinum Princess. If I had a 20,000 dollar boat I might be tempted to use them. Until then ...

[Diegoboy]

They're only $85. I'll eventually get on for the Z27 and baby Freya...
Maybe I'll save it for the boat that is the hardest to tape!

[Chris Harris]

I never understood it. I know what it does, but what's the point. You have the hatch off to plug in batteries, then plug in the rx battery and tape up. You need to pull the tape to diconnect lipos after a run anyhow, so how is it convenient to have the switch outside the hull?

In racing situations sometimes your waiting around a while so using the external switch allows you to conserve Tx and Rx battery power.

Chris

[lrm50]

I like running the switch on the boat as a safety isue like changing props. I did chop my finger on boat without a switch. Motor spased as I touched the prop nut with socket and it got me wasn't pretty and sure hurt so now I run a switch on all my boats.

[Rumdog]

Yes, but aren't you not supposed to have batteries hooked up without the rx powered up?

[Heath M]

I use this type on all my boats that require a RX battery

http://www.whhonline.com/product_p/rb5075.htm

works great and looks coooooooooooooool as

[TRUCKPULL]

With a CC ESC the ESC sounds once when you plug in the batteries.
After you tape up,turn on your transmitter, then push in the switch, the ESC sounds three times to tell you that it is now armed.

Larry