Re: [RCSE] how high really

[Raschow]

In a message dated 8/25/2006 8:55:17 P.M. Eastern Standard Time, [EMAIL PROTECTED] writes: But if anyone out there can give us some research based information on far a human can discern an object like a 3m sailplane I'd sure like to hear it. That would be good!  Also, it would be pertinent to know what testing folks have performed to verify that true ambient static pressure is indeed being sensed (by these wonderful miniature recording barographs we have available today) under actual dynamic, in-flight, conditions.  Depending on fuselage shape, alignment to the airstream, and in/out "leakage" paths, etc, pressure at the sensor could be higher (altitude reads low) or lower (altitude reads high) than ambient.  Good Lift!