"Some other things that can jump up and bite you:
1. RC_FEEL_RP, particularly when the aircraft is overpowered (hovers below 50% throttle).
2. Autotune. I prefer using In Flight Tuning. I ran AutoTune on a quad that was…"
"You're just staying on the ground too long. Flybarless helis do the exact same thing.
The problem stems from the fact that as soon as you arm the motors, the flight controller is trying to keep the airframe level.
A flybarless heli gyro…"
"Pixhawk doesn't care how much the aircraft weighs, What you need to be concerned about is the power system (motors, props, ESCs and battery) that will give you at least 30 kilos of thrust at 50% throttle. This comes out to…"
"I had the same issue with a FlySky TH9X with an XJT module and an X8R receiver.
Short of installing a Smartiparts 9Xtremem and flashing new firmware, the easiest way to "fix" this is to use a PWM to PPM encoder.
"That chart still does not tell you what the thrust values are at 50% throttle, and because the physics are not linear, you cannot interpolate thrust at 50% based on thrust at 85% or 90%. In fact, full throttle thrust is pretty much meaningless…"
"Well, if the real wold motor data is even close to what is published here:Mars Power 2212-920Kv, the problem with the current power system is the props...
To hover at 50% throttle each motor must make at least 325.25 grams of thrust. According to…"
"Well, yes. But more importantly MP is telling you the aircraft is under powered. 65% throttle just to hover coupled with an effective maximum throttle of 95% or so, leaves a scant 30% throttle for maintaining stability and…"
"Yeah, what Craig said. BUT, if you really want automated AND manual control, get a Pixhawk. You can use the radio to manually retract and deploy the gear and you can use LAND to deploy the gear automatically. This works…"