I had to re-write this review after giving these blades a one-star rating. I had previously had a tail servo stop responding during flight and ended up with a very hard landing where both blades ended up hitting the ground and were destroyed. After what I thought at the time was a thorough inspection I put these blades on as replacements. When I inspected the original damage I was able to determine the feathering shaft came out unscathed, so I never checked the main shaft. After I put the Neewer blades on and throttled up for a test flight, both blades literally ejected by snapping at the blade grip bolt holes. That's when my one star review went live. Upon inspecting the heli this time, sure enough I had an ever-so-slight bend on my mainshaft, which had to have occured the previous servo failure crash and which could definitely cause the snapping at high head speed. The second pair I put on after replacing the main shaft were fine, no snapping or ejecting :) I figured if the...
I run a Align Trex 450 SE V2; The blades are junk. The carbon fiber and the finish along the length of the blade is very poor. The first two blades I tried wouldn't even fit into the rotor head. The blades are masked off and quickly painted. A lot of the paint obviously seeped under the tape. There wasn't a nice blade in the batch. In addition - I haven't found two that even balance out well. I don't like knocking a product but I'm going to be returning these. Instead of 5 pairs, increase the quality and sell them in 3 pairs for the same cost.
These are no the highest quality blades I've ever seen, but for the price they are hard to beat. They were all very closely balanced when removed from the package. The paint job on some was less than sharp and contained some visual blemishes. When balanced I had problems with my helicopter in flight. I use these rotor blades on my Tarot 450 and Forza 450 at HS approaching 3100 RPM.
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