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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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Motors›Scorpion HKIV-4025-850kV

Scorpion HKIV-4025-850kV

The Scorpion HKIV-4025-850kV is a 850 kv motor with a 40 × 25 mm stator, weighing 347 g and rated to 95 A.

Simulate this motor

Specifications

Identity

BrandScorpion
ModelScorpion HKIV-4025-850kV
kv850

Electrical

Max A95
Phase resistance9 mΩ
Poles10
Maker cells—
Curve pack3S

Mechanical

Weight0.77 lb
Stator40×25
Stator length25 mm

Limits

Max power—
MotorScorpion HKIV-4025-850kVThis page
Propeller17x8N
BatteryTattu 1100mAh 11.4V 60C 3S1P Lipo Battery Pack with XT30 Plug
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 %3,1200.92 lb44 W3.469.19.53
40 %4,0051.55 lb84 W6.775.88.35
50 %4,8062.27 lb140 W11.3797.35
60 %5,5083.02 lb208 W17.380.26.57
70 %6,1053.74 lb284 W24.480.35.98
80 %6,5974.40 lb362 W32.379.75.52
90 %6,9904.97 lb437 W40.978.75.15
100 %7,1845.26 lb480 W46.277.94.97

Related

Other winds

  • Scorpion HKIV-4025-520kV
  • Scorpion HKIV-4025-1100kV

Paired with

  • 12x9W
  • 14x4.7SF
  • 17x8N
  • 11x4.7SF
  • Tattu 1100mAh 11.4V 60C 3S1P Lipo Battery Pack with XT30 Plug

Same class

  • AXI 2808/24 CYCLONE 1190kV
  • AXI 2814/16 CYCLONE 1035kV
  • AXI 2814/20 CYCLONE 840kV
  • AXI 2820/12 CYCLONE 990kV
  • AXI 2820/14 CYCLONE 860kV
  • AXI 2826/10 CYCLONE 920kV
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 a database 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.