Do I need to up the head speed for heavier blades?

[mgjackson]

Hi,

I've put heavier (KDS make) glass fibre blades on my Trex 450, and there is a noticable wobble at low speeds....I'm assuming I need to up the head speed slightly to compensate

Thanks,
Matthew

[Tosh]

Sounds right. Low HS will usually make a heli nod unless it has soft damping.

[mgjackson]

Interesting you should say about the dampening...found an issue with the head in that I'd used the wrong washers which was allowing a small amount of movement....I suspect fixing that has hardened the dampening; its certainly more responsive and I guess more sensitive to the head speed being a little low.

[Sesame]

Tosh is right. if the dampners are harderthen your headspeed will have to be higher for a steady hover, other factors like what sort of flying your doing what blades your using etc will effect the headspeed you wind up having

[mgjackson]

Ok, thanks. I've uped the head speed by 4% on the lower and mid settings and reduced the mid pitch a little, which seems to have almost sorted it.