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Monthly Archives: February 2012
Aircraft Pilot Coupling (APC) PIO Transport Aircraft
Written by Shem Malmquist, Captain MD-11 Most pilots have heard the acronym “PIO” (pilot-induced-oscillation) at some point in their careers, and most assume it is related to poor piloting skills. Recognition and recovery from PIO is not even taught in … Continue reading
Weather Avoidance – Transport Aircraft Operations
By Captain Shem Malmquist While thunderstorms can occur during any part of the year, we all think of Spring as “thunderstorm season”. With the warming of the weather comes an increase in convective weather. This is an excellent time to … Continue reading
The Effect of Negative Pitch Changes on Landing Performance
By Captain Shem Malmquist One area of flight performance that is misunderstood by some pilots is the affect of pitch changes just prior to landing. Specifically, some pilots will aggressively lower the nose just prior to touchdown. While this technique will … Continue reading
Posted in Safety
Stabilized Approaches
(image from http://en.wikipedia.org/wiki/Airbus_A380) By Captain Shem Malmquist There has been much emphasis on the importance of the stabilized approach. I recently came across an interesting analysis of the time saved by flying an approach at higher speed as opposed to configuring … Continue reading
Posted in Safety
Cold Temperature and Wind Effects on Altimetry
(Image from http://www.mountainflying.com/) By Captain Shem Malmquist Barometric altimeters are prone to various errors. Most pilots understand the effects of non-standard pressure. We correct for this below transition altitude by setting the local altimeter setting as provided by ATC. We … Continue reading
Posted in Safety
Windshear
Photo from http://wildaboututah.org/images/VirgaTucsonJulioBetancourt-4.jpg By Captain Shem Malmquist At least once each year we each return to fly the simulator. The “game” in the simulator is fairly predictable. We know what to expect most of the way through – we are more … Continue reading
Posted in Safety
Tagged dry microburst, virga Delta 191
Inflight Fire
By Captain Shem Malmquist June 2, 1983, Air Canada flight 797 experienced an in-flight fire. The first hint of smoke odor occurred at 1900 CDT. The crew had thought they had extinguished the fire. At 1907 CDT the smell of … Continue reading
