• Gemfan VORTEX 18x8E and 18x8R electric propellers set, glass fiber nylon, 6.35mm bore
  • Single VORTEX 18x8 propeller blade, top view on white background
  • Gemfan VORTEX 18x8 propeller side profile showing thin airfoil shape
  • Retail packaging bag with Gemfan VORTEX 18x8 propeller inside
  • Propeller straight-on view centered on hub and mounting hole
  • Plastic spacer/adapter ring set for propeller bore fitting
  • Gemfan Vortex propeller performance chart graph (voltage 44.4V) with data table
  • Propeller blade edge-on view highlighting twist from root to tip
  • Close-up of propeller hub markings (18x8R) and center bore
  • Angled view of propeller showing full span and blade curvature
  • Sealed Gemfan VORTEX propeller bag shown full length
  • Vertical propeller view showing hub and both blades aligned end-to-end
  • Close-up of propeller tip and blade surface finish
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Gemfan VORTEX 18x8E/18x8R Electric Glass Fiber Nylon Propeller, 6.35mm Bore, 1pc/Bag

Gemfan VORTEX 18x8E/18x8R Electric Glass Fiber Nylon Propeller, 6.35mm Bore, 1pc/Bag

Gemfan

$19.99 USD
$19.99 USD
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Overview

Gemfan VORTEX 18x8E/18x8R is an electric glass fiber nylon propeller supplied as 1 piece per bag. It features an 18 in diameter and 8 in pitch, with a 6.35 mm / 0.25 in center hole for installations requiring that bore size.

Key Features

  • Model: 18x8E / 18x8R
  • Material: glass fiber nylon (electric propeller)
  • Center hole: 6.35 mm / 0.25 in

Specifications

Blade Diameter 18 in
Blade Pitch 8 in
Hub Diameter 31.5 mm
Hub Thickness 12.35 mm
Center Hole Diameter 6.35 mm / 0.25 in
Blade Weight (Single) 87.3 g
Product Weight (with packaging) 99.44 g

For fitment questions before ordering, contact support at https://rcdrone.top/ or support@rcdrone.top.

What’s Included

  • Gemfan VORTEX 18x8E/18x8R propeller: 1 piece/bag

Applications

  • Electric RC aircraft / UAV propulsion setups that specify an 18x8 prop and a 6.35 mm (0.25 in) center bore

Static Test Data (Reference)

Extracted test chart text: GemFan & Xoar Vortex 17x10, 6360, 190kv. Static test data at 44.4 V.

Throttle (%) 10 20 30 40 50 60 70 80 90 100
Current (A) 1.26 2.6 4.26 6.63 8.9 11.66 16.02 21.97 31.04 34.19
Thrust (g) 316 840 1344 1964 2497 3009 3801 4586 5941 6340
Efficiency (g/W) 5.6 7.3 7.1 6.7 6.3 5.8 5.4 4.7 4.3 4.2

Details

Static test chart at 44.4V for Gemfan/Xoar Vortex 17x10 on 6360 190kv, showing current, thrust and efficiency vs throttle

Reference static test data for the Vortex series at 44.4 V, listing current draw, thrust, and efficiency across throttle settings.

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