On Wednesday, September 14, 2016 at 8:04:30 AM UTC-4, Roy B. wrote:
In this month's Gliding International article on the Ventus 3, Aldo Cernezzi writes, "According to Berd Weber, I flew with a relatively forward CoG, which may have an impact on roll speed". This got me to thinking of my own anecdotal experiences with very forward CGs having a negative impact on roll rate, and I think that a forward CG does degrade the roll rate. But I can't figure out why that happens. Can anybody explain it in simple terms?
ROY

A famous scientist once said" to understand a phenomenom properly,
one must make measurements"
Apropos in this case; I hazard a guess that moving the CG aft has
reduced the circling A o A; this increases aileron effectiveness.
We need a careful experiment.

JMF