I flew pattern way back in "the old days" and for a long time you couldn't give me a 4-stroke.
I was sold on 2-strokes. But after starting pattern again after about a ten year layoff it didn't
take me but flying in one pattern contest to make me a convert. If you're serious about pattern
the 4-stroke is the way to go. The new ones are reliable, idle good, and have pulling power that
is unbelievable for all the vertical maneuvers in the new pattern schedules. I am just completing
a new CA Models Widebody that I planned on installing a MVVS .91 in but those plans have been
changed to a YS 1.10 4-stroke.

tommy s