Is the ambient temperature and/or altitude a significant factor in the performance of the Phantom. Can't disregard that in a full scale heli. Wonder if it's something to evaluate during the hot summer months with the Phantom?
Is the ambient temperature and/or altitude a significant factor in the performance of the Phantom. Can't disregard that in a full scale heli. Wonder if it's something to evaluate during the hot summer months with the Phantom?
Really its the same issue. In fixed wing aircraft, higher Density Altitude means that less air is being pushed across the wings to generate lift and by the props to create thrust. For our quads, less air being pushed down be the props so they have to spin faster to create the thrust needed to lift the UAV (Newton's second and third laws).About 20 years ago I did some flying in New Mexico and Colorado (single engine, fixed). What a dramatic difference from the nearly sea level airports I was used to in NY. There were two issues, altitude at take off and temperature at takeoff...all in relationship to density altitude. It took a while to get used to the long roll on takeoff and that's why high altitude airports have such long runways. But with vertical takeoffs this would seem to be much less of an issue. This was also with an aspirated carb. where density altitude is also an issue when it comes to icing. Again, not an issue with an electric motor.
About 20 years ago I did some flying in New Mexico and Colorado (single engine, fixed). What a dramatic difference from the nearly sea level airports I was used to in NY. There were two issues, altitude at take off and temperature at takeoff...all in relationship to density altitude. It took a while to get used to the long roll on takeoff and that's why high altitude airports have such long runways. But with vertical takeoffs this would seem to be much less of an issue. This was also with an aspirated carb. where density altitude is also an issue when it comes to icing. Again, not an issue with an electric motor.
That's just at, maybe even a bit above the published service ceiling for the Phantoms. Bet it was sluggish!! Just not that much air up there to push around!There's video out-there of a P1 or P2 flying at Everest base-camp, ~17kft.
Seemed sluggish if I recall. Battery capacity may have also been a factor as I don't recall temp. being mentioned.
That's just at, maybe even a bit above the published service ceiling for the Phantoms. Bet it was sluggish!! Just not that much air up there to push around!
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