The APC props arrived today, since the Hexa is down until the new F/C board arrives I put 4 on the Hoverfly quad to test them out. First thing I noticed, the blades are much bigger and shaped very differently than the Graupner props. Next thing I noticed, the tracking on these things is crap. Decided to put one on the balancer, ARRRRGGGGHHH... now I remember why I like the Graupners so much, I'll be lucky if can even get these pigs to balance, period.
I did spin up the motors on the Hoverfly and I will say the APCs push a lot more air than the Graupners and once they get some rpm they appear to start tracking better but so far all they've done is confirm to me that I really don't like APC for good reason. Graupners may be more $ but I'll gladly pay it to not have to spend a half hour trying to get one balanced or find that it doesn't track right after installation.
I'm hoping tomorrow the weather is decent enough to go outside with the quad and get it in the air with the bigger props, I'm very curious to see the difference though I doubt that I'll be using these long term.
Ken