Originally Posted by
gooseF22
Installation in a new bird, maiden...etc..
I went to the field the other day with my new Bach 1/4 scale bird.. ITs set up with IMAC style, I have been practicing aerobatics to improve my jet flying, but it also has med/hi rate for play. I set up 3 flight modes with three gain settings.. I spent a lot of time getting the plane square..etc.. so I go to fly it, with some basic settings in the Gyro 30%, 45% and 55% for Low/med/hi rates. What I did was use the trim function for Gain to add 20% or subtract, using P8 knob in the middle position.. then at the field, showed the setup process to the members
I did it this way to show the club guys that it works out of the box because folks in the club think a gyro is too hard to setup and can't justify the expense..yada..yada.... I set up a Kill gyro switch with a -100% gain to gain switch and showed them it turns it red.
I took off with it off, did 2 passes with auto trim.. done trimming.. then turned on gyro.. Pulled up for a hammerhead with a cross wind and the plane tracked straight up, rotated with little opposite aileron, tracked hands off on the downline.. The next time I let go of the sticks going on the upline and it tracked money.. Inverted... money... 45 up money, inverted up money, knife edge, no coupling.. Hover? in low rates.. pretty good.. Hover in med rates.. easy.. Hover in high rates.. hands off except throttle.
Then turned off the gyro with no mixes and did the same and showed the difference.. there was about 20 club members out.. needless to say they were pretty impressed..the whole point was to see a setup start to finish and stop the whining about setting up this gyro in a new plane
Bottom line.. ONE trim flight.. ONE.. done.. You cannot get any easier than that for a full 3 axis setup for most planes right out of the box.. by the way, its basically identical in setup to whats in my jets.. ding ding!! flaps up, flaps med, flaps down..
the only time we have had to mess with the software is in a delta aircraft where it needed all the rudder assistance it could get but not as much pitch/roll assistance..
Goose,
Since you are obviously very familiar with the Cortex, could you perhaps shed some light on tuning performance with a PC ? I have a Cortex, which has always worked very well with the basic setup for scale type flying or for precision aerobatics. However, I could never seems to get it so I was happy with it for extreme aerobatics. For example, when I needed to corner the sticks to get the airplane to transition from high speed vertical flight immediately into a flat spin (pop top) I could never get the Cortex to stabilize the plane well without feeling it fight me during these extreme maneuvers. I played quite a bit with the various settings for quite a while without much success but I suspect this was because I was never able to find a clear description of each control and how to adjust it to get the desired results. If you have experience with this I would love to learn more about this type of fine tuning of the Cortex parameters. If you know of a link to a good discussion of this type of thing that would be great too.
Thanks