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© 2026 Upwash LLC·Patent US 2026/0062150 A1·Engineering aid, not for safety-critical or certification use.

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Propellers›APC 21x10W

APC 21x10W

The APC 21x10W is a 21×10 inch, 2-blade propeller weighing 225.1 g.

Simulate this propeller

Specifications

Identity

MakerAPC
Model21x10W

Mechanical

Size21×10 in
Pitch10.00 in
Blades2
RotationCCW
P/D0.48
Weight0.50 lb

Limits

Max RPM11,000
Motor4638/7.5/125
Propeller21x10WThis page
BatteryMaxAmps 1300mAh 12S
Throttle%
Charge%
Rotors
Free · no account needed

Open in the calculator

Performance

Pairings
Download CSV
ThrottleRPMThrust (lb)Power (W)Current (A)Efficiency (%)g/W
30 %7320.29 lb8 W0.238.917.11
40 %9270.47 lb13 W0.347.616.91
50 %1,1100.68 lb19 W0.453.816.24
60 %1,2820.91 lb27 W0.55815.35
70 %1,4441.16 lb37 W0.760.514.33
80 %1,5981.42 lb49 W161.313.24
90 %1,7431.69 lb63 W1.360.812.11
100 %1,8271.86 lb74 W1.559.911.41

Related

Same maker

  • 10.5x4.5
  • 10.5x6
  • 10x10
  • 10x10E
  • 10x12WE
  • 10x3

Paired with

  • 3808/100/59
  • 4638/7.5/125
  • 3825/10/192
  • 4610/60/60
  • MaxAmps 1300mAh 12S
  • MaxAmps 1300mAh 10S

Same class

  • 20.5x10.5PN
  • 20.5x10.5WPN
  • 20.5x10PN
  • 20.5x12WE
  • 20.5x13.5EPN
  • 20.5x14E
See all
Fast modelComputed 2026-10-03prom-rs/0.6.2Validation

The curves here are the Fast model, which every account and every visitor runs without limit. An account also runs the Full model, which solves this propeller from its measured blade geometry.

Engineering aid — ThrustLab results are physics-based estimates, not certified data. Always bench-test and independently validate before committing a real build to flight. Not for safety-critical or certification use.