Description
Gemfan Freestyle 4S three-blade props
The Gemfan Freestyle 4S (reference F4S-3) are 5.1-inch, three-blade props in Midnight Gray polycarbonate. The pack holds four props, two clockwise and two counter-clockwise: exactly what a full quad needs.
Gemfan recommends them for 550 to 750 g quads, with 2300 to 2500 KV motors on 4S or 1650 to 1950 KV on 6S.
Specifications
- Size: 5.1 inch (129 mm)
- Pitch: 3.6 inch
- Blades: 3
- Material: polycarbonate (PC)
- Weight: 3.6 g per prop
- Hub thickness: 6 mm
- Shaft: 5 mm (M5)
- Recommended motor on 4S: 2300-2500 KV
- Recommended motor on 6S: 1650-1950 KV
- Recommended drone weight: 550-750 g
- Color: Midnight Gray
Pack contents
- 2 CW props (clockwise)
- 2 CCW props (counter-clockwise)
Which drone are the Gemfan Freestyle 4S for?
They are designed for 5-inch freestyle quads. Before buying, check that your frame takes 5.1-inch props and that your motor shafts are 5 mm.
Why low weight matters
Each prop weighs 3.6 g, less than a 5-cent euro coin. The less mass the motor has to move, the faster it can change speed, and you feel that in how the drone responds to the sticks.
Gemfan Freestyle 4S FAQ
How many props are in the pack?
Four: two CW and two CCW, enough for one quad.
Do they work on 4S and 6S?
Yes. Gemfan lists 2300 to 2500 KV motors on 4S and 1650 to 1950 KV on 6S.
What shaft do they use?
They use a 5 mm shaft.
How are they fitted?
CW props go on the motors that spin clockwise and CCW props on those that spin counter-clockwise. Check your motors’ direction of rotation before tightening the nut.
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