Chasing Speeding Trains And Getting Low 2.7k - Freestyle Race Drone QAVR X220

Went out for a few flights during lunch yesterday and the timing worked out perfect ! Just as I was about to fly my last pack, and gopro battery was dying, this happened :) Train was moving fast !! came up so quick and just flew by, I have no idea of the speed but it was cooking along. I have flown here many many times too, and hoped I would see a train on many occasions but it never worked out, FINALLY !! just wish the train was a little longer haha, a short fast scooter :) YouTube - http://YouTube.com/JDogB1 Instagram - https://www.instagram.com/JDogB1_FireBlade FPVBook - http://www.fpvbook.com/FireBlade Full open acro mode, accelerometer disabled. Quadcopter: Custom build 5" race quad using QAVR 220 upgraded frame. (thicker upper and lower plates, 3mm lower and 2mm upper, also upgraded fasteners and aluminum knurled standoffs) PDB: Matek 5-in-1 3-5s FC: OmniBus F4 Betaflight ESC: DYS blheli_s 30A V2 DShot600 Motors: Emax RS2205 2300kv Blades: HQ 5x4.5x3 V1S FPV Camera: RunCam Owl Plus 2 16:9 140deg 2.1mm VTX: AKK Switchable Betaflight Q3 25mw to 800mw Batteries: Tattu 1550mah 95c 4s TX: FlySky i6x FPV Goggles: Eachine EV800D Antennas: TBS Triumph DVR Receiver: Eachine RC840 DVR Camera: GoPro Session 5 Quad total weight without battery: 451g Lipo battery weight: 171g (wrapped)