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Isn't the purpose of the "sparrow strainer" to insure that the aerodynamic center of pressure is well behind the center of rotation of the elevator thereby inhibiting divergent flutter (even if the balance was a little off). It might also tend to dampen any flutter which might start. If you do not have the Saprrow Strainer installed, have you conducted your flutter tests to determine that there is no flutter in the operational envelope? Has Duane given an OK to flight without the "sparrow strainer"?
>>> HYTEC45 <HYTEC45@aol.com> 04/09/98 12:54PM >>>
The "sparrow" strainer won't have enough lifting force at slower speeds
(rotation) to overcome the force required to deflect the elevator down for
rotation. I don't have the sparrow strainer on at all, and my velocity seems
to be very stable in level flight for XC.