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Forum: DCForumID9
Thread Number: 174
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Original Message
"Please explain what's going on here"
Posted by diver on 11-20-05 at 07:57z
When holding the stick neutral and pumping the pedals back and forth, first gently, then quickly increasing amplitude to the rudder stops, the aircraft does a sudden tuck and wants to rollover. Do not have a negative fuel system so I stop it before it goes all the way. I relize this may be to my specific machines design (s9... Looks like a mini extra ) But because this aircraft has participated in some aerobatic competions and has over a 15 year history. Iam thinking that this manoever can be recreated in other aircraft has well.
John Ryan
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"RE: Please explain what's going on here"
Posted by seafire on 12-27-05 at 04:22z
Obviously you're getting TOO close to pushing an inverted spin !

As you exacerbate a movement, like pushing the pedals, momentum starts to come into play...

Eventually, the airplane will roll over into an inverted spin. Not the greatest of ways to finish your weekend !

Unless you're at a nice height and have sharp reflexes !!!

Pete.