This is the first mention I see of the Goldberg Ultimate in this thread I'll bet there are dozens of us out here who still have the original plans and could have looked it up.
The 3/4 inch throw is, I'm sure ±0.75", and is quite adequate for flying. That business about getting too slow and not having enough elevator...
Don't get this thing too slow on landing. It will float in, but you don't want to get in the position of needing a big change in pitch at low speed. If you do, it is precisely the wrong thing to apply 2" of elevator - it will snap.
The plane flies great, lands nicely and performs well at slow speed. You don't need more than the quoted 3/4" elevator unless you're hanging on the prop.
Best wishes,
Dave Olson
ORIGINAL: Snaproll John
The reason I have requested the control throws is because I am presently installing the two elevator servos. I want the pushrod to be parallel to the bottom of the stabilizer. Depending on how much throw I set it up with depends on how much I screw the control horn up or down the threaded control arm, which in turn dicatates where I glue the servo in place in the lightening hole in the rear of the fuse. (higher or lower to keep the push rod parallel to the stabilizer bottom). Goldberg e-mailed me and said to use 3/4" on the elevator. They did not specify if that was the low rate or the high rate. I e-mailed them back and have not gotten a response for over a week now. A couple guys posted anywhere from about 1 and 1/4" to 2 and 1/2" of throw! That's quite a difference!
Someone also posted that if you set up the elevators with the 3/4" Goldberg recommends, if you get slow, you won't even have enough throw to bring the nose up and will hence make a hard landing. Someone has to post good starting throws eventually! Love the Ultimate 10-300 bipe!
Thanks, John