3.2Kg Hex, Prop and Motor Advice

[Av8Chuck]

I have a 7lb (3.2Kg) Hex with 30amp ESC's, Turnigy D3536 (1000Kv) and 10" Graupner E-Props.

I'm using a NAZA Vs 1 so the throttle has always felt kind of strange to me but it lifts off at about 75% throttle and hovers a little less than that. I've only flown it with the larger camera and gimbal a couple of times and never more than four minutes on a 5800Mah 4s battery. Flies quite well, but its on the scary end of full throttle, doesn't feel like there's a lot left for maneuvering.

I have six new Avroto M2814-11S 770KV motors and I was thinking of using APC 11x4.7 props, do you think this would give me enough additional thrust to improve performance? I would like to get back to about a 50% hover.

I forgot to mention that I checked out eCalc but the Avroto motors are not in the list of motors.

 

[gtranquilla]

Get your detailed motor specs and simply enter them into eCalc as a custom motor..... and it will provide good results for you.

I have a 7lb (3.2Kg) Hex with 30amp ESC's, Turnigy D3536 (1000Kv) and 10" Graupner E-Props.

I'm using a NAZA Vs 1 so the throttle has always felt kind of strange to me but it lifts off at about 75% throttle and hovers a little less than that. I've only flown it with the larger camera and gimbal a couple of times and never more than four minutes on a 5800Mah 4s battery. Flies quite well, but its on the scary end of full throttle, doesn't feel like there's a lot left for maneuvering.

I have six new Avroto M2814-11S 770KV motors and I was thinking of using APC 11x4.7 props, do you think this would give me enough additional thrust to improve performance? I would like to get back to about a 50% hover.

I forgot to mention that I checked out eCalc but the Avroto motors are not in the list of motors.

 

[Av8Chuck]

I kind of figured that out but I don't know where to find the detailed information about these motors, which is why i'm guessing their not listed in the drop down.

 

[gtranquilla]

Plug in the following data and see what develops..... moving down to 770kv is a good step in the right direction.... more efficient, relatively speaking....Manufacturer Data:Model number M2814-11S

• Weight approximately 100 grams not including wires.
• External Dimensions 35mm D x 36mm L
  
• Stator Dimensions 28mm D x 14mm L
  
• Internal Shaft diameter 4mm.
  
• Prop Adapter diameter 6mm.
  
• No-load speed: 770 rpm / V
  
• Ri (Internal Resistance) 100mΩ
  
• Io (no load current) 0.5A
  
• Voltage for Io measurement 10V
  
• Current capacity 25A/180s
  
• Watts: 350
  
• Lipo cell 3-4
  
• Wire length 600mm
  
• 14magnets 12 stator arms 12N 14P

  I kind of figured that out but I don't know where to find the detailed information about these motors, which is why i'm guessing their not listed in the drop down.

  
  

 

[Av8Chuck]

Thanks for the info. I put that into eCalc, I suspect I made a mistake because it says that it should hover at approximately 48% [linear, whatever that means] and about 2 minutes longer. Oh if it were only true.

Good thing is that it won't cost me anything to find out.

Thanks again for your help.

~chuck