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FPV RC Helicopter Crash

submitted by moodonia

1 decade 3 years 5 months 3 weeks ago

Accident landing on train, over ambitious perhaps?

youtube:
The heli was proud to die at this amazing stunt........

Only minor damage, I guess "only" 100 Euro and 12 hours of work......

18th FPV helicopter flight

Live video feed, video from onboard camera gets transmitted in real time to the video goggles.
FPV= acronym for "First Person View"

Setup:
Standard Thunder Tiger Mini Titan E325
Aluminum rotor head
Aluminum washout base
Kontronik Jazz 40-06-18 ESC
Hacker A20-6XL motor without cooling fan (broken at a crash), 15 tooth pinion
Thunder Power 11,1V 3s 20C 2600mAh LiPo battery (weighs only 188 g!) or RockAmp 11,1V 3s 2200mAh 30C (193g, but very powerful!!!)
3x Thunder Tiger C1016 swash plate servos
1x Futaba S3114 tail servo
Robbe- Futaba GY-240 gyro
BBT Maniac 321 CFK blades, 2nd choice
Align Tail Rotor Blades for T-Rex 450 (plastic)
Reinforced tail rotor pushrod, with two 1,3mm CFK rods
Graupner- JR MX-16S, 40 Mhz transmitter (+ emergency booster)
Graupner - JR SMC-19 DS receiver with 1,75m antenna (Lamda/4)
Approx. 2600 rpm headspeed
+- 7° blade pitch

FPV Setup:
1,3 GHz 400 mW video transmitter from BEVRC (www.bevrc.com) with small Lawmate 3 dBi antenna
Lawmate 1,3 GHz (1.2, 1.3 GHz) video receiver with BEVRC 3 dBi antenna (upper plastic casing removed, should be better for 1280MHz)
Video receiver powered with 11,1V LiPo battery
1,2 or 1,3 GHz transmitters are legal in Austria with Radio (Ham) License between 1240 and 1300 MHz up to 200W
I'm using channel 9 (1280 MHz)
WDR700 (= KPC-DNR700PHB) PAL camera (Sony Super HADII CCD), factory (= default) settings, I've tried other settings but default is the best in my opinion
Fat Shark RCV922 Aviator Edition video goggles
Microphone
Weight FPV gear: approx. 100 g
Powering the FPV gear with the 3s flight battery, ferrite ring used against interference (I had some brightness problems, much better now!)

FPV Recording:
Video splitting with a simple Y-cable
Canon MVX200i Mini DV PAL Camcorder (DV-AVI, 720x576, 25 fps)
Deinterlacing with "Alparysoft Deinterlace" (Advanced method, ME search enabled) ,saved with "Cedocida DV Codec" and Virtual Dub
Editing with Ulead Videostudio 11
Compressing with Xvid, Single Pass, Quantizer 2 (approx. 72 MB per minute), MP3 256 kps CBR Stereo
This is the best possible quality in my opinion (with this camera, transmitter setup)

AUW 973 g
Maximum flight time (hovering, slow flying): 10 min. (260 mAh/min energy consumption)
Average flight time: 7 min.
Range: approx. 800m with this setup

Costs:
Heli, camera approx. 1000 Euro (special setup for hard 3D flight)
Altogether approx. 2500 Euro (Flight Simulator, transmitter, batteries, charger, video goggles, FPV video recorder....)

Typical crash costs: 50- 300 Euro