Pelican’s Perch

I‘m a little nervous writing stuff like this, because I am acutely aware that not all readers are the same. Some will read this column by itself, without reading the material in previous columns that has led up to this point. Some don’t care about the dirty details, and simply want to know what to […]

This column is a continuation of previous columns about manifold pressure(MP), props, mixtures, and engine management techniques. They are listed here for your reference. Reviewing them might be a good thing to do before venturing further into this one! PP #15: Manifold Pressure Sucks! PP #16: Those Marvelous Props PP #18: Mixture Magic PP #19: […]

In my previous column, we explored a bit of the history of supercharging, some of the many variations, and some of the reasons for it. We touched lightly upon the turbochargers, which make it possible for an aircraft engine to produce a manifold pressure greater than ambient pressure,and thus more power. We also mentioned the […]

First,a little housekeeping. For those interested in some of the old books I reprint,there have been several changes. Be sure to check out my list of availablepublications. Also, I am often asked “When are you gonna do the the turbocolumn?” I’ve now got a turbonormalizer from TornadoAlley Turbo in Ada, Oklahoma, and as soon as […]

Frankly, I hated the massive rewrite ofPart 61 that went into effect on August 4, 1997. No one asked me, but I didn’t think itneeded an overhaul. A few minor tweaks to clear up a few poor areas would have done verynicely. It changed rules and requirements that had been in effect for decades, from […]

The 747 was nearing the end of the trans-Pacific flight from Tokyo to Anchorage, Alaska, and had begun a descent from Flight Level 370 about 120nm from the runway. The triple Inertial Navigation Systems (INS) had functioned perfectly, and the autopilot in INS mode still held the big bird on a flawless and perfectly straight […]

The recent loss of Alaska Airlines 261 waslike an unexpected hard punch in the gut for me, and for everyone in the airline business,because we know that Alaska is one of the very finest airlines, with excellent attitudesprevailing in the cockpits and cabins, good equipment, good maintenance, good training,and highly skilled pilots who operate in […]

I am not proud of this all-too-true story.It demonstrates incredible stupidity and poor judgment on my part, and it is the closest Ishall ever come to dying without doing so. I have told the story to only a very smallhandful of people, and I am certain that some of those probably don’t believe it, as […]

No, I haven’t changed my mind about theusefulness (and the dangers) of the classic early descent to MDA and flying along levellooking for the runway, nor the usefulness (and the dangers) of doing CANPA, the so-called”Constant Angle Non Precision Approach” when appropriate. But my previous column obviously needs a little follow-up. Like theseven blind men, […]

I suspect Cap’n Jepp is rolling in hisgrave over the latest Briefing Bulletin – Vertical Navigation (VNAV), dated 12 NOV 99 -from Jeppesen in Denver. Not that it’s Jeppesen’s fault; they’re just charting the latestindustry foolishness. But Captain E. B. Jeppesen was an airman of the old school, and Ibelieve he would have rejected VNAV […]