looking for control throws i bought plane used and need to set them. no plans

Based on similar models and pattern practice generally, I'd start out with 15Ëš up & down on ailerons and elevators, and 30Ëš or more left & right on rudder. After some flying you might want to reduce the throws a bit, depending on your preferences, but these would be good settings for you to get acquainted with the model.

I generally set them up for 20deg high rate and 10 deg low rate, and 30 on the rudder.

thx i will try that. the plane is extrmely fast

LOL, yes they are a little on the quick side. LOL

On that plane, make sure that you don't make it too tail heavy and get it too slow especially on landings. It will snap in a flash into the ground if you let it especially with the kind of elevator throw (15 deg) that you were told is okay as a start. Also tail heaviness tended to result in high speed stall as I recall, particularly on the bottoms of loops when the loading was highest. Better to err on the side of caution for cg and elevator travel volume.

Other more modern designs are more tolerant of tail heaviness probably due to their light weight. The DB60 tended to build on the heavy side for the wing size it carried; also had a somewhat unforgiving airfoil. Bridi tried to incorporate all the super forgiving virtues of the Super Kaos in the DB, but IMO didn't quite do it.

An otherwise pretty decent flier and was campaigned successfully in Pattern circles in the late 70's and early 80's. Flew my first ever contest with one, gosh, could it be almost 30 years ago? Man Im getting old!!

MattK

Thanks for jumping in Matt. I flew a heavy plane earlier this year, my first heavy plane in quite a while, and had lots of the same kind of problems you describe. Had elevator throws too high (even though I thought they were quite moderate), too tailheavy (35% MAC, which usually works well for me). The thing snapped on takeoff with only maybe 25' altitude, and it was all I could do to catch it and keep it off the ground. The rest of the flight was hardly better, snapped again at ~100', I would catch it and it would snap again, etc. Hairiest flight of the year. Got it back down in one piece, but have retired it after fiddling with it a few more times. Life is too short to fly heavy models.

I still have a DB kit, still think I'd like to build it one of these days. I'll stick this note in the box to remind myself how to set it up.

Just jumpin in. Flew mine monday and last night. I do love this old bird. Just a couple of comments.
1. I would set the throws as described above.
2. Balance. - mine is set-up on the wing spar.
3. Landings are not too fast. Just remember to fly it in. You can not do the typical float / sink / flair / land. It would become float / snap / cry / build.
4. It is a beautiful fast plane. Mine clocks at 110+ mph. With gears up she tracks on rails with no bad tendencies.
5. I am going to post a pic and comments soon.