wierd feeling

[jimmuse]

Hi, Rick.

I have been flying aroung a lot lately at 100 to 120K working on my Instrument rating (120 to 140 mph on my '67 337B).

A while back, I noticed a slight bumping (shudder?), but neither of my cfi's could really feel it. I dropped a notch of flaps, and the bumping went away.

I have discussed this with my mechanic and he suggested that it may wll be just a slower airspeed/mp/rpm setting than I am used to... but I am not so sure.

I am more aware than before, but do not experience it above about 140 mph.

This probably doesn't help, but my hackles just went up a notch.

Jim