kstinman

My Feedback: (1)

What kind of ignition kill switch do they have for the DA 50-R engine?
I'm interested in what people are using for the kill switch, besides the
electro Dynamics fiber optic kill switch. Also where to find one on the net.


Thanks,

HLC

R/C Foolish

My Feedback: (6)

I have my choke on servo. DA50R on GP Patty Wagstaff. I use fiber optic, choke on servo and Futaba 9C engine kill for 3 forms of killing the motor.

John

Antique

My Feedback: (4)

Another way is to glue a micro switch on top of a small servo, make the round wheel into a cam..run the ignition positive wire through the switch, use the landing gear switch on the transmitter to kill the engine...[8D]

GeraldRosebery

My Feedback: (14)

Aren't you asking for radio interference doing that?

GalenB

My Feedback: (18)

Why don't you want to use the FO unit from Electrodynamics? Everyone I know, including myself, uses this kill swith with great success...

GoeKeli

My Feedback: (18)

Got a link Galen? i was looking at the smart fly FO kill switch for my DA50.

Joe !~)

laryboy

My Feedback: (2)

try this http://www.smart-fly.com/index.html

kstinman

My Feedback: (1)

I think they want too much for a kill switch.

I think I am going to use this switch and see how I like it.
I want to be able to turn it off and on at starting time, but guess I'll
have to remember to flip the radio switch when I get ready to start the engine.


http://www.rcatsystems.com/electronics.php



HLC

deputydog

I use the idle down and also a servo on the choke for 2 forms of kill on my DA-50. 3 is a bit overkill!

GalenB

My Feedback: (18)

http://www.electrodynam.com/cgi-loca...726+1078027108

JohnVH

My Feedback: (38)

I just use the throttle to low on my 40% plane, on my 33% with a zdz80 I use the throttle to kill it too, but have the choke onto a servo and can use that. My newest 33% cap with a DA100 will be a throttle kill only job also.

GalenB

My Feedback: (18)

I use the FO kill unit and closing the throttle to kill the engine in my Edge. Ideally I should mix these together on one switch, but I haven't... I like the idea of being able to kill the engine without having to rely on a servo. The solid state FO unit should never [] fail as it has no moving parts...

kstinman

My Feedback: (1)

What are you going to do if the throttle fails. FLY AND PRAY?

JohnVH

My Feedback: (38)

what do you do if your RX fails? what do you do if your elevator servo fails? Wingtube....ect.....

GalenB

My Feedback: (18)

That's the whole point of the FO unit. If the throttle servo fails then you kill the engine with the FO unit and dead stick in...

GalenB

My Feedback: (18)

Hi John,

How many batteries and receivers in your new 40% model? Servo failure is another benefit of having more then one servo per control surface. If lost of the servos on you 40% aileron you would notice and land... If you have a structural failure then it's simply game over. However, you can take a few reasonable precautions -- like redundant receivers and batteries in larger models -- and FO kill switches on the engine.

You guys are free to put whatever you want in your models. As for my models -- I'll be putting at least a FO kill switch on my gassers... We'll see what happens if, and when, I join the 40% club...

JohnVH

My Feedback: (38)

Hi Galen, I have two RX's and one battery per RX in the 40%. I have flown and landed it on one RX=one elevator half, and one aileron. Flew fine that way, this was before it was mine. One battery died in flight.

The reason that you see multiple servo's on a surface is for more power, not more redundency. Oh, also, the reason there is two RX's is not redundancy, its to handle the power load of all the servo's. Both my 33% are on one RX. With the reliability of my servo's, its not a concern to me.

karolh

Can the RCATS kill switch work on a magneto type ignition system like the Zenoah engine.

kstinman

My Feedback: (1)

I'm sure it can be. It can be used for numerous purposes according to their web site.


HLC

Jetstream

My Feedback: (6)

Do you think a kill switch is necessary with it's added cost and complexity? Not really, you take the chance of any servo failing on a airplane. If a servo would have to fail, I would love to have it be the throttle. I can deal with that. What is the worse that can happen? So you fly around in circles until you run out of fuel, big deal. Did anyone think it was necessary on glow engines? Why is it any different with this one? Just a few questions to ponder.....

Dave

laryboy

My Feedback: (2)

its quite probable that you will run out of battery before you run out of gas

kstinman

My Feedback: (1)

I'm sorry I started this opinionated thread. To each his own.
Kill switches are recommended by AMA, but it is a choice for each person
to make for himself and I was just trying to find a good kill switch for my
own use, not start a debate.

I have found the switch I want so, to use or not to use is not relevant to me.



Thanks,


HLC

laryboy

My Feedback: (2)

in spite of the 2 recommended switches you managed to find a third choice which may be unsuitable because of radio interference. that is the reason that smartfly and electrodynamics use fiber optic isolation. hence they cost more. i certainly agree with you that many people jumped in with answers to a question that you didnt ask.

ml3456

I have read all the comments before and now again about the plus and minus. Strictly a choice of the individual.

My questions is that everyone says the battery may die before the fuel runs out. My question is depending on the initial condition of the battery, just flying around in circles shouldn't drain the batteries as quickly as flying since there would be very little servo movement to circle. I know digitals will draw a little more, but if you start with your batteries near full capacity, can't you circle for quite a long time?

Mark

GalenB

My Feedback: (18)

I think he was referring to the ignition battery...