Gemfan D3.5-3 Ducted PC 3-Blade Propeller 1.5mm T-Mount, 3in Pitch 88.9mm (4 Pairs/Bag)

Gemfan

$3.29 USD

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colour clear black clear green

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Overview

Gemfan D3.5-3 is a ducted PC 3-blade propeller with a 1.5mm T-mount center hole, designed for compact ducted FPV builds. It is stated to be optimized for the DJI O4 HD video transmission system and supports both normal and inverted mounting.

Key Features

PC (polycarbonate) material
3-blade ducted propeller design
1.5mm / T-mount center hole
Stated strict dynamic balance standards and high-efficiency aerodynamic profile
Color options: clear gray, clear yellow

Specifications

Type	Gemfan D3.5-3
Material	PC
Pitch	3in
Prop Diameter	88.9mm
Center Thickness	5mm
Center Hole Inner Diameter	1.5mm / T-mount
Max Prop Width	18.9mm
Weight	2.84g
Recommended Motor	2006
Takeoff Weight	350g
Colour	clear gray, clear yellow

Static Test Data

Static test chart label: Gemfan D3.5-3; test motor label: 2004-3000KV; voltage: 22.2V; X-axis: throttle.

Throttle (%)	Current (A)	RPM (rpm)	Thrust (g)	Efficiency (g/W)
10	0.23	5748	20	3.9
20	0.95	11544	85	4.1
30	2.37	16756	182	3.5
40	4.54	21155	292	2.9
50	7.82	25427	423	2.5
60	11.53	28995	554	2.2
70	16.01	32395	687	2.0
80	20.91	34621	789	1.7
90	26.73	37375	921	1.6
100	32.23	39401	990	1.4

What’s Included

Gemfan D3.5 Ducted PC 3 Blade 1.5mm Propeller (4 pairs/bag)

For compatibility questions (motor shaft/T-mount fit, duct clearance, or build recommendations), contact support@rcdrone.top or visit https://rcdrone.top/.