is there a big difference between 550mm and 530mm blades?

[matador_24]

Hi guys... I have a raptor 30 v2... I damaged my blades and there was a set of blades in special, but they are 530mm, they are on their way to my place..... is there gonna be a big difference in performance or stability???? I was using before 550mm.... I am a newbie, I just do some hovering and FF...

[jgunpilot]

The diference? About 20mm.

Seriously, I doubt that you will notice anything unless the extra 20mm leads to a boomstrike.

[matador_24]

well, it's the opposite, I was using 550mm, so, now it would be 20mm less on each blade, that makes 40mm in total.... do u know if there is something different in performance or stability????? headspeed?

[ama outlaw]

You will probably only feel that the heli is a little slower to climb out and in hard turns it will feel heavier or take more collective. It will be a little heavier feeling because of the disk loading going up, but the smaller disk diameter will be a smidge quicker reacting so that will probably be a wash. Your headspeed might go up marginally as well. Basically I don't think you will feel much of a real difference unless you were more experienced with and in tune to your heli from more flight time with it.