And to toss in the other side, there are Legacy airframes with the metal hartzell flying as smooth as a turbine.   Ed Martin's in my hangar has one of them.  Last week, I noticed my flap tops were marked and Ed's were perfect condition.   His flaps are tight with no fore/aft play in the UP position.  Mine have some slop in the UP position fore/aft and that leads to side play as well.

These issues are not entirely noticeable unless you have someone familiar with all these issues as Steve points out.

Paul

On 2013-11-27, at 10:51, "Steve Colwell" <mcmess1919@yahoo.com> wrote:

> Dan,
>
> Here's what I think I know about vibration in Lancairs.  Starting with
> Cirrus, they had a vibration problem with the 3 blade Hartzell aluminum
>
>
>
>
>
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