Genuine Gemfan 7035 3-Blades (7x3.5x3) Propellers 16 Pieces(8CW, 8CCW) Black 7-inch Tri Blades Quadcopters & Mutlirotors Props Battery Strap

Though not listed (should be), these Gemfan 7x3.5 triple-blade props from RAYcorp DID come with the necessary spacers/bushings to attach them to a 5mm motor shaft. I just mounted them on my Hubsan H501S which has the standard 5mm shafts. My initial observation was that they were quite flexy compared to the stock props, and the 6045 (6 inch) triple-blades that I tried. Might be a good thing, might be a bad thing. I'm not an aeronautical engineer so WTH.. I fastened them on and took them out for a whirl. So to speak. I like em! The quad now has sort of a whiny high pitched acceleration tone when I hit the throttle. Kinda like a Formula 1 race car. Some may not like that but I do. It's a bit windy out today so I didn't want to do a "full test" around cars and houses in my neighborhood, with a propeller style and size that I've never used before. But I did do a little slow oval flying, and some fast lift acceleration over my lawn. I find them to be responsive and accurate. Possibly more even than the stock props. But I'll have to fly more than I did just now. I also noticed that while descending fairly quickly, if I let go of the stick the copter stops its descent more immediately, and holds its altitude better than it did with other props. I did notice that the battery was running down a lot more quickly than normal. But I was using an aftermarket battery that I don't consider to be as good as the genuine Hubsan. So I'm reserving judgment on that part. But with 40%ish more propeller real estate than stock, the length of battery life for flight time is bound to be reduced in favor of sportiness and handling. And I can always put the stock props back on if I want longer flight times. I have to say that I like these 7 inch triple props much better than the stiffer 6 inch triples that I tried. Since the stock H501S props are like 7.3 inches, these made sense. But there are not many 7" triples available. Remember that you have to use 5mm shaft nuts with these props because they don't thread on. Low profile nuts would be good since the hubs on these props is kinda thick and there are not a lot of threads left to attach with. But there is enough to snug them on. I wanted to cheaply get a little bit of a racing-quad image and feel out of my budget entry-level H501S once in a while. Like I said... I like em.

Way too flimsy. Will not work on my 1850kv motors on 4s. They make this crazy howling noise and I'm afraid they are going to break.

I like the shipping . The product felt very cheaply made for a seven inch long range drone . I did not use as I want to keep my drone solid and balanced as it's new .

so far so good Like these props

Very good props

These do NOT work on my iFlight x7 quad. I assembled it last night and test flew it this morning. If I fly slowly, it does good. As soon as I give more than half throttle, the blades make a strange noise ( I think the tips are bending) and I have to back off. The blades seem to be too weak to handle the performance, or RPM, and or the wieght of the quad. I had to use some 6045 props to fly it. Now the hunt begins for an HQ70?? props for my awesome quad I just built and cant fly with the 7inch prop. I am using AOKFLY 2450kv motors, iPeaka 30a DShot esc's, and a 4s, and sometimes a 5s lipo. Have not installed my fpv equipment yet.