[greggold]

I switched to a 3 blade prop on my Zeta Phantom flying wing (aka FX 61) and there is a major reduction in noise - it is no longer the loudest plane in the park. It has a Turnigy 3536/8 1000 Kv motor running on 3S packs, and previously used a 2-blade 10x45 prop; now it has a Hobbyking 3-blade 9x45, and also works well with a 3-blade 8x6. The 9x45 gives a little more power. The Hobbyking 3-blade 9x45 costs $2.71 for 2, which seems good value; one is CW, the other CCW, but both props work fine when installed the correct way. I have not tried to balance the props and there seems no need.

I did not expect such a big noise reduction, have others had this experience?