rdalemercer
Member
I have a question regarding "expected" flight time.
I flew the CX-4 for the first time yesterday and was quite dismayed by the flight time that I was getting before the NAZA Voltage Monitor started its rapid red LED flashing signifying that I had hit the first level of 'protection' at 15.4v. My pack was freshly charged.
My flight time was 90 ~ 120 seconds for each of the 6 flights that I managed between charging the packs. I flew with both packs on the CX for balance, but only one was plugged in for each flight. Flight weight was 2280g.
Droidworx cx-4 v2
Futaba R6208SB 8-Channel 2.4GHz FASST
Photohigher CX 111 CX 1 Micro Tilt gimbal
AXi 2217/20 Droidworx Edition (840Kv)
Graupner Elektro Prop - 11x5
Propeller hub spacer 8 and 5mm
DJI 30A ESC
DJI NAZA w/GPS
RePlay XD1080 camera
The CX-4 is balanced at mid point (between the skid brackets).
My all-up wieght is 1700g NOT including 2 x Hyperon 2600mAh 4S batteries at 290g each
By comparison, the F450 that I fly with the same 2600 mah pack averages 9 minutes (540 seconds).
The F450 has 920kv motors.
Flying weight w 2600mah = 1096g (5000mah = 1364g)
The only differences that I see are:
1. Weight:
CX = 1700g (no battery)
F450 = 806g (no battery)
2. Motor:
CX = 840Kv (rpm/volt)
F450 = 920Kv (rpm/volt)
3. Blades:
CX = 11/5
F450 = 8/5
Am I missing something? To say that I am incredibly disappointed in the flight time is an understatement. I had planned to fly it with 2 x 2600mah batteries in parrallel for 5200mah capacity and hoped to get a total of 14 ~ 15 minutes of fight time. Based on the actual flight time, I will only get 3 minutes.
Any assistance will be greatly appreciated.
Thanks,
Dale.