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Estimated Propeller Thrust at Standard Conditions
Weight of UAV W =
grams
Weight of UAV W =
kg
Weight of UAV W =
N
Weight of UAV W =
lbs.
Prop. diameter D =
in
Prop. diameter D =
m
Prop. Pitch =
inch/rev
Number of motors / props =
#
Motor
Motor Kv =
rpm/v
motor volts applied =
volts
Max. Current per motor =
ampere
Max. Motor speed =
rpm
Motor Output Power
constant k =
power =
W
Ampere rating
Battery ampere hour =
amps/hr
Discharge rate max =
amp
Ampere rating =
amp
Max. motor Wattage
Max wattage =
W
Estimated Static thrust
air density
ρ =
kg/m
3
Motor efficiency =
%
Fluid drag coefficient at max rpm D
c
=
0.850
-
Max. Static thrust =
N
Max. Static thrust =
kgf
Max. Static thrust =
lbs.
UAV Maximum thrust =
N
UAV Maximum thrust =
kg
UAV Maximum thrust =
lbs.
Thrust/mass ratio at Max. Thrust =
thrust/mass
Estimated rpm vs thrust table
(typically not linear)
% rpm
thrust N
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