Hey all, would really appreciate some guidance / advice on tunning my TBS Mojito.
I recently went to test fly my TBS mojito the other day with little success, the launch was okay but as soon as it settled into the cruise in FBWA, a very nasty P Rate oscillation began to occur, which was also observed in the Pitch actual vs Desired logs post crash. Its was just manageable however when I added in some spoilers to slow down it completely sent the pitch out of phase and resulted in a front flip and departure from stable flight, ending in a high speed impact with the grass haha.
Where I am stuck, is I went back and looked at my rates and knowing that the Mojito is a super unstable aircraft i used the default 0.04 for Ptch_Rate which I thought would be okay for a first flight, additionally I also had Auto trim enabled which looking back on it was probably not the best idea.
Ultimately I am very confused on where I should be going with my tuning on this aircraft and would be super appreciative of any and all guidance that the community has to offer, prior to me putting the electronics in a new frame and sending it of a catapult again, hopefully with a better outcome!
The specs of the Mojito are the following:
FC: Speedybee F405 wing
Batt: 4000mah LIion 6s
C.G. bang on manufactures spec
Below I have also included the crash log and the param file of my Mojito. The log was to large to upload so I have sent it as a G drive link.
Thank you so much in advance!
Crash param.param (19.1 KB)