On Thursday, March 12, 2015 at 3:13:56 PM UTC-7, Van Henson wrote:
Hey Ho-

I'm interested in whether someone can interpret my POH for me. I have MiniNimbus B and the POH says,

***
The Mini-Nimbus B is approved for the following acrobatic maneuvers:

Maneuver Entry Speed (kts)
Inside Loops 108
Spins 32
Turns 108
Lazy Eight 97
***


Does anybody know what they mean by "Turns"? I'm guessing they don't mean a gentle 90-degree turn to the right or left...

My Mini Nimbus "C" ser#102 manual pg 36 says:

"TURNS, flaps in position -7 deg. Entry to the turn at speeds not less than 97 Kts. A speed of 108 Kts. is recommended. After entry to the turn apply rudder in the vertical climb at a speed of 70 Kts. Speed during recovery from the turn: 97-108 Kts."

Sounds like "in the vertical climb" implies a hammerhead stall to me ! Speed is probably dropping off precipitously at 70 Kts. in the vertical and if allowed to proceed beyond that before kicking in rudder, you are probably looking at a tail slide. Don't know what level of damage might or might not occur to the tail feathers in that case, so I'd err on the side of caution kicking in the rudder !! One other thing, since the rudder is asymmetrically mounted, kicking in the rudder in one direction is immenently more effective than the other. In my "C", I'd be using right rudder.