• Gemfan Vortex 9x4.5E / 9x4.5R propellers, pair on white background, top view
  • Single propeller side profile showing blade pitch and hub thickness
  • Gemfan Vortex 9x4.5 propeller, full-length top view with hub centered
  • Angled view of two-blade propeller highlighting curved blade shape and hub
  • Retail package with two propellers and mounting hardware visible through clear pouch
  • Front-on vertical view of propeller showing blade outline and center hub
  • Close-up of propeller hub with size marking and center mounting hole
  • Diagonal full view of propeller showing twist and airfoil along both blades
  • Low-angle side view of propeller showing thin trailing edge and hub profile
  • Close-up of propeller blade surface texture and leading edge near the hub
  • Sealed Gemfan propeller package, front view showing two blades and included adapters
  • Gemfan/Xoar Vortex performance test chart with line graphs and data table
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Gemfan Vortex 9x4.5E / 9x4.5R Propeller, Electric Glass Fiber Nylon, 6.35mm Center Hole (2pcs)

Gemfan Vortex 9x4.5E / 9x4.5R Propeller, Electric Glass Fiber Nylon, 6.35mm Center Hole (2pcs)

Gemfan

$12.04 USD
$12.04 USD
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Overview

The Gemfan Vortex 9x4.5E / 9x4.5R propeller is an electric glass fiber nylon propeller supplied as 2 pieces per bag. Size: 9 in diameter with 4.5 in pitch, featuring a 6.35 mm (0.25 in) center hole.

Key Features

  • Model: 9X4.5E / 9X4.5R
  • Electric glass fiber nylon construction
  • 6.35 mm / 0.25 in center hole for common prop adapters/shafts

Specifications

Blade Diameter 9 in
Blade Pitch 4.5 in
Hub Diameter 19.6 mm
Hub Thickness 9.9 mm
Center Hole Diameter 6.35 mm / 0.25 in
Blade Weight (Single) 20.4 g
Product Weight (with packaging) 49.14 g

Static Test Reference

Test Setup Vortex 9x4.5; motor: 2216 950KV; voltage: 14.8 V
Throttle (%) 10 20 30 40 50 60 70 80 90 100
Current (A) 0.15 0.41 0.82 1.71 2.93 4.67 6.91 9.73 13.11 17.51
Thrust (g) 3.00 32.00 110.00 212.00 327.00 477.00 642.00 812.00 990.00 1196.00
Efficiency (g/W) 13 5.2 9 8.4 7.6 7 6.4 5.8 5.3 4.9

What’s Included

  • 2 pcs propellers / bag

Applications

  • Electric RC aircraft and other electric power setups requiring 9x4.5 propellers with a 6.35 mm (0.25 in) center hole

For product selection help and after-sales support, contact support@rcdrone.top or visit https://rcdrone.top/.

Details

Static test chart for Gemfan Vortex 9x4.5E/9x4.5R propeller on 2216 950KV motor at 14.8V

Static test reference data lists current draw, thrust, and efficiency across throttle points using a 2216 950KV motor at 14.8 V.

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