Mike--

The second method (on the large engine test stand) for a means to control the throttle (using the 3/4" bolt) was just faster - only had to cut off the bolt head and threads, drill holes and tap both ends. I prefer the one I made for my smaller test stand but that took a lot more "engineering" (read that as "time"). But both work equally well.

I haven't run the US 41 yet. Waiting for better weather and I don't have any big model built for it yet anyway. Also don't plan to do any radio testing on the stand as it's meant just for the initial engine running. So, having a metal throttle pushrod doesn't matter in this case.

Lincoln is near Sacramento (Northern California).

Jon
(linclogs)