Sunday, January 29, 2017

Drone Spirals Out of Control - A grain of sand halts motor in flight

When life gives you lemons... make lemonade.  Can editing save this footage?

Messing around with my PIDs and Rates in high winds before getting a piece of sand stuck in a motor and spiraling out of control 15 seconds into my 3rd pack's flight while performing a forward flip.

I have my 2 position momentary switch tied to the buzzer, which is what I use to locate my drone after a crash (like playing marco polo).

Only damage was a bent (PC + glass fiber) prop after crashing, and instead of my GoPro flinging itself out of its mount, the 3M tape peeled back about 90%, and is what you see at the end.

The crash could have been avoided, as after the landing on the second pack, I noticed the motor was not smooth, and an initial take-off it stuck, but I thought I managed to get it unstuck, as witnessed by the take-off.

Lesson Learned? Sand is evil to a brushless quadcopter motor, and in a situation of this sort, the motor should be disassembled, and the debris removed.

Another great reason to fly in open area's and away from people.

Interesting Fact: According to the Pilots Handbook of Aeronautic Knowledge, 13% of all aviation accidents happen while "Maneuvering".

-- Gear --
SimulatorLiftoff (Steam)
FrameSpedix Black Knight 250
Flight Controller: Naze32 Rev6
FPV CameraRuncam Swift Rotor Riot Edition
HD CameraGoPro Hero 5 Black
ESCs: BL_Heli_S with Oneshot and Multishot
PropsDal T5045 3-Blade V2
Motors: Spedix 2205 2300KV
Video TX: Spedix 200mw 40 Channel
ReceiverFrSky X4R-SB SBUS
BatteryTurnigy Nano-Tech 35-70c 3S 1500mah
GooglesQuanum Cyclops
TransmitterFrSky Taranis X9D Plus
ChargerTurnigy Accucell S60

-- DIY Base / Ground Station --
ScreenGeneric 800x480 5 inch Display
AntennaRP-SMA Aomway 5.8Ghz 4-Leaf Clover (RHCP)
Receiver & Screen Power:  Turnigy 3S 1500mah 35C
Video RecorderHMDVR
DVR PowerGeneric 1S 650mah
DC/DC Boost Converter
Plastic Case (Daiso Japan)

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