I miss the old flyrotary.  I'm still using an alternative engine, so you would think that the other discussion groups would have a lot of back and forth, presenting ideas and data; but, there was a certain magic in our old group that was inviting and accepting of exploring stuff that most people seem to lack.  Most groups seem to be happily focused on which options they have for seat fabric rather than sussing out some new anomaly they discovered or created in their building/flying endeavors.

I have 9.8 hours left in the fly off period of my Corvair powered 601XL.  I posted the message below to the Zenith forum.  Nobody seemed to care, even though I found it quite interesting.  Nobody seems to have the taste for experimentation over there, I guess.

I've been spending a lot of time trying to nail down the Vx, Vy and best glide numbers for N167EZ.  My methodology has been to have my Dynon D-100 record data while I fly sawtooth patterns, then analyze the data with a spreadsheet I created.  Saturday was a beautiful data for the task.  Heavy, but high, overcast, with perfectly smooth air once I got over 2500.  I've been doing this a while, so I've gotten much better at holding my airspeed.  Here is the plot of what I got on my outing. 

Within the data, I pulled out the center segment of a climb, averaged the speed and the climb rate.  Then I plotted all the segments.  The horizontal bars around each point show how well I maintained the airspeed, indicating the variance from the average. 

The best glide appears to be about 43/44.  Would Vx be about 46?  I do get over the trees much better at my home airport if I keep it closer to 50 than 60.  Vy is 59?  What is one to make of the severe draggy bucket at around 64 on the climb?

I think the climb points at 46, 54 and 64 will need to be redone.  Awwwh!  That means I have to go fly again.  Poor me.  :-)