RCFREEK

Im new to gassers. I just built a WM 80in extra and fitted it with a DA 50. A few friends of mine have the choke activated thru a manual nyrod mechanism. Is that the right way or do we do it with a servo? Pls advise and also show engine setup photos if possible, especially choke servo pics. Also, is a 14 oz dubro tank enough for 12 mins flights? Where do we mount the pipe coming from the tank exhaust outlet? what refuelling mechanisms do you all use?

Ken Bryant

My Feedback: (10)

Either way is correct, you can use a servo to allow for an alternate way to shut off the engine. I personnally use a servo. As for pictures, not really needed just set it up the same as a throttle control rod. Really easy...

12 minutes, yea, you should be able to get that. I have a 16oz tank in mine and I land after 10 minutes and it's still has half a tank.

Most people just port this out the bottom. Just a piece of fuel line. No pipe neccessary


I use a Hand Crank that is safe for gas. Make sure all your fuel system is GAS safe. You will need "tygon" fuel line and a different rubber stoppper for your fuel tank Dubro makes these if you go looking.

RCFREEK

but i plan on giving the throttle a nyrod setup. can i give the choke a 4-40 metal pushrod with a dubro clevis? i hear there's a viration-R/F interference issue that i'm to look out for. whats that? could i hv precautions to keep in mind while setting up a gasser?

SydDythers

My Feedback: (5)

Here are a couple pics of two similar choke setups. They are connected to the choke with dubro swivel ball links. One rod is obviously metal and the other, more preferable method, is carbon rod. You just JB weld the carbon rod into the ball link. I also screw on a nut on the end so I can grip it. Then just velcro the rod to the ignition lead and you are good to go.

Make sure if you use a manual choke that you install a cutoff switch or similar.



Cheers,

John

RCFREEK

so what ur doing is pulling on the choke rod(metal or C/F) through the opening in the front of the cowl?

SydDythers

My Feedback: (5)

Yup!!

Cheers,

John