Cox Ryan ST-3 & Dave Thornburg's Ryan ST...FM 11/68

Spent some time with my little Ryan ST-3, making up some test lines (I'll have it on 20 ft of Spiderwire when it flys) to check out the model's three line bellcrank/throttle system and also run a break-in on it's .020.

I just left it all together since it looked good from what I could see, and started it up.  It took a bit to get going, but ran steadily once it caught.  The bellcrank/throttle assembly worked great, but had little effect on the .020's RPM.  I'm gonna move the pushrod to the other hole on the sleeve's snap ring, to see if it helps...I remember having to slide the ring a bit on the sleeve of other throttles like this to get it to block enough exhaust to slow the engine.

I made an effort at explaining how the three-line works...probably clear as mud...but you take your shot.

It was strapped down all nice and comfy, so I let run for close to half an hour, doing refuels on the run, and enjoying my flash-back time.

So, now to cut some Spiderwire, and search for a nice smooth patch of asphalt!!






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The trigger moves the flying lines in the opposite direction of the center throttle line.




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Under the plane's belly, the bellcrank slides wingspan-wise, not affecting the elevator push rod, while the throttle push rod moves forward and backward.







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