Master Airscrew Performance 11x4.5 Multi-Rotor Series 2-Blade Propellers - Black, 2 pcs

Works great on my BMJR Spacewalker. Running an Axi Gold Line 2208/34 on a 3s it has good low end power.

I have always been a big fan of Master Airscrew props. Good solid quality, well balanced right out of the bag, and good performance.

I am usually the guy to buy cheap props for my small copters because I beat them up so badly. I just recently built a new larger bird and decided to spend a few extra cents on better props. I had ordered a XOAR PJP set, and an off brand carbon fiber set along with these all in 12x4.5. Not only were these the best price, but they also functioned the best of the three. These props showed a significant near 2 minute increase in flight time over the others purchased. Not to mention They look good, balancing was reasonable, and the build quality is better than you would expect for this price. Highly recommended.

Not bad, only issue is that they warp in high wind conditions. On a calm day I have no shake. But if very windy camera's can wobble a bit if hard mounted. But props are efficient for sure !!!!

These propellers are pretty nice. They provide a good amount of lift and when reamed can be used as a replacement for the Turbo Ace x830 drone. These are actually much more durable than they look and work pretty well. The only thing of note is that these are a little bit wider than expected (not really an issue).

Are you kidding me? The first crash and they shatter? They're worthless.

I used to buy Master Airscrew props when I was a kid. This is the first one I bought after near 30 years and I was not disappointed. This prop is well made and very light (quadcopters are very sensitive to the weight). It has much more twist compares to the other props with the similar size. The twist is very close to the ideal twist that produces uniform downwash with minimized the drag/torq/power. It has about 10-15% more efficiency to the other props.

Work great for my quad on 800kv motors. Online simulator I used indicated that a higher pitch would be a bit more efficient on this build, only one I could find was from a popular three letter brand that was 12x5.5. That same simulator indicated that the other brands props were more efficient than Master Airscrew's, though it didn't list Master Airscrew's MR specifically. Anyways...after testing, running the same routes at the same speeds...these props are more efficient than the popular 3 letter brand even though their pitch should have been a better match and they supposedly were the most efficient MR prop. In my case, these are the most efficient I can find on this motor frame combo. Durable too, 8ft fall landed perfectly upside down...only one prop had any breakage, still worked though.