DJI F450 GPS and GRAUPNER PROP problem

[elisofix]

Hi everybody
I use F450 with extra staffs on it total weight 1780gr.With the DJI prop 10' I didn't have any proplem but with the GRAUPNER pro 10x5 the 450 loss height alone with the same throttle stick position and then climbs again alone in all mode flight!!!!!Any answer why doing this with this props???????

 

[kloner]

either the props are slipping or you finally flew with the light hitting the left side of the naza. Was it early or late in the day? if you hold your motor, can you spin the prop?

 

[elisofix]

Hi kloner
No the prop can slip and I know about the sensor light sensitivity and I have black tape on each side.But with the DJI it it OK and more flight time +3,4 min?

 

[3d wana be]

Are you using 3s or 4s? On a 450, ive heard (and purchased however have not tested) the 9x5 work better