Paul Valovich
Joined: 11 Jan 2006 Posts: 75
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Posted: Wed Sep 02, 2009 7:14 am Post subject: Loop problemLoop problem |
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All certified aircraft have an allowable flight envelope that always permits flight at greater or less than +1g up to a specified limit. As far as the aircraft is concerned, attitude within that envelope doesn’t matter. However, the pilot has to have the intelligence, skill and situational awareness to remain within the envelope throughout any maneuver. FAA airspace restrictions do matter – from a regulatory, not aerodynamic perspective. One can certainly start any acrobatic maneuver in a Cherokee – the kicker is properly assessing the probability of remaining in and recovery within said envelope.
Anyone remember the videos of Bob Hoover (I think it was him) doing acro and inverted fight with a glass of water on the glare shield – and not spilling a drop?
Acro and unusual attitudes are not inherently dangerous if approached with proper planning and understanding of both flight envelope limitations and the “what ifs”. Airlines seem to agree by introducing upset training – admittedly only after a series of preventable delta sierra accidents involving improper control inputs in response to unexpected attitude excursions.
Paul Valovich
Booger
RV-8A N192NM Reserved (again)
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