dmbandx
lvl.1
United States
Offline
|
I'm having a nervewracking problem: I just acquired my Phantom 2 Vers. 2.0 last week, and initial takeoffs seem to be an issue now.
Every time I spool up, the rotors turn just fine--but I notice that if I give it the slight push to spin harder (without lifting off), I can see the unit already beginning to shift its weight unevenly backwards. Sure enough, if I push harder for takeoff, it just leans back and tips over, throwing the props into the ground.
This is now hampered even worse by the new, un-documented way to spin down and stop the propellers: neither the original instructions (which were for a P2 Vers. 1.0), the addendum pamphlet included for Vers 2.0 controls, nor the paper band around the controllers mention anything about how to properly stop altogether once safely on the ground. Spinning up is still the same--pointing the sticks inward together--but you now have to "lock" the throttle control until it clicks, and then quickly "un-click" it before it spins down again.
Unfortunately, the spin-down is now JUST the throttle in the lock position, and it takes roughly three seconds to activate. This means that when I start to take off and it tips, I have to quickly push the throttle to the lock position and wait those three critical seconds to get it to stop (or risk banging my fingers up trying to get to the untipped side around the spinning blades to right the unit).
In other words, if I need it to stop quickly, there's a wait time for that to occur, and in the meantime my props could be getting scratched, dented, broken or locking up against whatever surface and straining the motors. When the tipover happens, I just stop flying and let the whole unit cool down, pretty much the rest of the day.
I've had this unit a week now. I've ran the diagnostics, updated the firmware, gently reduced some of the settings (the attitude gains were set by default to 260%--is that normal?! I reduced it to about 200 for now).
I've had a total flight time of about 2 minutes with this thing, and I'm becoming increasingly paranoid about flying it--that the next flight--even if I get it off the ground--will wreck it. I've come close already--a field flight in a wide area (with a wind shear probably too high that I should have been flying in, I admit) with guards on seemed to cause it to list to the right, which I corrected for, but then it sent the unit hurling back over my head and into the ground. All four guards were wrecked in the cartwheel, but miraculously the unit survived unscathed with only one prop snapped (and the battery flipped out, which is astounding, but showed no sign of damage).
I need some serious brainstorming here. Should I just wait the arduous wait time by calling DJI and seeing about getting a replacement unit, see if they can analyze it, or do I adhere to this somewhat popular notion some have that you have to "gun it" to get it off the ground safely? I was able to take off gently the first two times, but tipped over when the (again, undocumented and incorrect) procedure for shutting down the rotors caused it to tip and skip along the ground out of control.
For the record, I do know how to fly a quad--I've been flying my Dromida Ominus for about three months now and have a firm grasp on the mechanics and compensations needed.
For the P2, I wait until I get the full green, make sure the left switch is off and have the other set to GPS mode, and yet--again--I'm growing increasingly worried I'm going to wreck it and be out quite a bit of cash. I'm glad I didn't even consider hooking the camera gimbal up to it. I might be out one GoPro if I had.
Regardless, I need to know if anyone else is having this problem or can offer a valid solution that doesn't require "experimentation" on my part to overcome this problem. I need a valid resolution to it.
Thanks very much in advance.
|
|