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Gemfan D2.8-3 Ducted PC 3-Blade Propeller 1.5mm T-Mount, 71.12mm Diameter, 2 Pairs/Bag

Gemfan D2.8-3 Ducted PC 3-Blade Propeller 1.5mm T-Mount, 71.12mm Diameter, 2 Pairs/Bag

Gemfan

$9.94 USD
$9.94 USD
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Overview

Gemfan D2.8-3 is a ducted PC 3-blade propeller with a 1.5mm T-mount center hole, designed for smooth and stable flight. It features an aerodynamic profile that supports both normal and inverted mounting, and is stated to be optimized for the DJI O4 HD video transmission system.

Key Features

  • 3-blade ducted propeller (Gemfan D-Series: D2.8-3)
  • PC material
  • Supports normal and inverted mounting
  • Manufactured to strict dynamic balance standards (per provided description)

Specifications

Type Gemfan D2.8-3
Material PC
Blade Count 3-blade
Pitch 2.8in
Color Clear yellow, clear black
Prop Diameter 71.12mm
Center Thickness 5mm
Center Hole Inner Diameter 1.5mm / T-mount
Max Prop Width 15.2mm
Weight 1.59g
Recommended Motor 1507
Takeoff Weight 300g

Static Test Data (as provided)

Prop / Motor Label Gemfan D2.8-3, 1606-3900KV
Test Voltage 14.8V
X-Axis Throttle
Throttle (%) 10 20 30 40 50 60 70 80 90 100
Current (A) 0.29 0.71 1.41 2.52 3.96 5.88 7.88 10.79 14.11 17.72
RPM 6784 12010 16704 21585 26020 30627 34188 37852 41947 45314
Thrust (g) 11 34 68 115 169 233 289 365 439 510
Efficiency (g/W) 2.7 3.3 3.3 3.1 2.9 2.7 2.5 2.3 2.1 2.0

What’s Included

  • Gemfan D2.8 Ducted PC 3-Blade 1.5mm Propeller: 2 pairs/bag

Applications

  • Ducted micro/cinewhoop builds using 1.5mm T-mount props
  • Setups where normal or inverted prop mounting is required

For pre-sales compatibility questions (motor/duct clearance, mounting), contact https://rcdrone.top/ or support@rcdrone.top.

Details

Static test chart for Gemfan D2.8-3 ducted 3-blade prop on 1606-3900KV motor at 14.8V

Static test data at 14.8V charts throttle vs current draw, RPM, thrust, and efficiency for the D2.8-3 prop on a 1606-3900KV motor.

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