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Gemfan Propeller 5x4.5 Black (CW/CCW) (2pcs)

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Gemfan Propeller 5x4.5 Black (CW/CCW) (2pcs)


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GemFan Propellers have set the gold standard in the small class Multirotor community. Known for their durability, great balancing and superb hub centering and expendable price. They come packaged as a set of 2, with one CW rotation and one CCW rotation. There is a wide range of color options that can be mixed and matched to help with multirotor orientation. This is the perfect upgrade for any small multirotor.

Size:5045 (5x4.5)
Color: Black
Hub: 5mm (adapters included for 4mm,3.17mm and 3mm)
Material: Carbon reinforced Nylon

1 x CW rotation
1 x CCW rotation

  • Propeller Diameter X(Inch) 5.00
  • Propeller Pitch Y(Inch) 4.50
  • Rotation CW/CCW

Dimension Diagram Guide

  • attributeset-13


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| Verified Buyer

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Certified Buyer Rated

Jul 23, 2016

cheap but great performance

Joshua | Verified Buyer

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Customer Rated

Feb 17, 2016

These props are very stiff and well shaped.
[WARNING] However, the structural integrity of these props are nearly impossible to verify after a crash. I was tuning PIDs for a 250 quad (using 2150kV MS Elite 'Mini Monster' motors and a 4S battery) and had a few rough landings. After the first prop broke, I carefully checked each prop after each flight, as they were snapping at the root.
I finally had the PID's tuned in to prevent oscillation at ~50pcnt throttle, so I tried gunning the throttle to see how it handled at ~80pcnt throttle.

In a split-second, 7 out of the 8 total blades on my quadcopter exploded / ripped apart mid-air and the quad fell to the ground. Some blades flew more than 10 meters, one blade had flown inwards and ripped ~4cm of heatshrink off the side of my video TX and one propeller was found in at least 3 pieces, split down the length of the blade into slivers.

While I cannot recommend these props for a quad using the same high-power motors and 4S battery setup, I do believe these props operate fine with a more moderate / 3S setup.

Here is a link to a video of the incident:

Alessandro Capon | Verified Buyer

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Certified Buyer Rated

Jul 10, 2015

toste. davvero toste

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