Showing posts with label designated examiner. Show all posts
Showing posts with label designated examiner. Show all posts

Tuesday, February 17, 2009

Model Behavior


When pilots talk of stick and rudder skills they tend to downplay fancy instruments, instead emphasizing courage and seat-of-the-pants flying skills using the primary flight controls. In fact, I recently heard a claim that the advent of glass cockpit training aircraft is resulting in a new breed of pilots who aren't adept at physically controlling their aircraft. This out-of-hand argument against glass panel aircraft rings hollow to me because the important part of the training equation has always been the pilot and the instructor, not so much the aircraft.

Some instructors tend to emphasize the parts of training they personally find enjoyable or challenging. Precision landings, slips, stalls, pilotage and dead reckoning are just a few examples of possible fixations that can eclipse other important training. It's easy to imagine that some instructors might want to focus on the intricacies of G1000 operations just as it's easy to imagine an instructor spending too much time on power-off approaches to landing. Training fixations can be more directly related to the instructor's biases (or career goals) than to the training aircraft or the student. Professional instructors should strive to provide a well-rounded training experience and that means taking inventory of one's own biases and how they might be affecting the pilots you're training.

Instructors who suffered through the Fundamentals of Instruction remember the Law of Primacy, which states that a student pilot's early experiences will make a strong and memorable impression. A related concept is the Law of Intensity, which posits that vivid experiences are more easily retained and remembered than boring, tedious experiences. Put these two concepts together and it's easy to see why early training tends to shape the way a pilot will fly for the rest of their life, for better or for worse.

I often fly with pilots whose aircraft control is unrefined and this is not because they are incapable of flying smoothly, it is because they were never taught to do so. I believe poor aircraft control can often be traced to a sink-or-swim style of flight instruction: The instructor sits in the right seat and may give directions, offer suggestions, or shout orders, but basically refuses to touch the controls unless the plane and its occupants are in imminent danger. I guess the intent behind this approach is that it will build the student's confidence and self-reliance, but the reality is that there is no single way to successfully teach someone to fly. What the student actually learns in the sink-or-swim environment is pretty much limited by the student's personality, values, and their reaction to the training because a crucial item is missing: The instructor is failing to model desirable piloting behavior and technique, which are two important components of the adult learning process.

I remember taking on a student pilot with a susceptibility to motion sickness. His previous instructor's approach to dealing with this was a seemingly never-ending diet of slow flight, stalls, and even spins. The brute force approach had actually made things worse and this pilot was on the verge of abandoning aviation altogether. We spent many hours in the air and on the ground discussing techniques for dealing with adverse reactions to flight and (gasp!) talking about his feelings and emotions during different aspects of training. A testament to this pilot's determination and courage was that he stuck with aviation, found creative solutions to his roadblocks, and ultimately passed his check ride.

Instructors are pilots, too, and we are not immune to the profound effects of our own initial training: Many instructors teach flying exactly the way they were taught. My own decision to become an instructor was precisely the result of some of the hideous training I endured. Not all the instruction I received was bad, but I felt it was possible to do better. Later, I was fortunate to fly with pilots, many of who weren't even instructors, who had considerably more flight and life experience and who provided excellent examples of airmanship. Learning from other pilots is actually quite easy provided you pay attention, watch what they do, ask questions, and then have a chance to model their behavior. Monkey see, monkey do. It sounds crude, but it can be a very effective way to learn and is a cornerstone of adult learning.

Training aircraft with glass panels are a relatively new phenomenon and many instructors out there learned to fly with steam gauges or maybe in an aircraft that didn't even have any radios at all. Learning new technology can be a challenge for these instructors since they have to overcome their own initial training and (I'm going to be brutally honest here) their own fear of equipment they don't understand. Furthermore, the complexity of these glass panel aircraft requires a more sophisticated and academic approach to training than the old sink-or-swim or monkey-see-monkey-do techniques. Like it or not, we are heading squarely into an age where average, run-of-the-mill aircraft are going to be equipped with GPS, autopilots, and more.

The FAA has long recognized the need for a standardized way to evaluate piloting skill, which is why there is a set of Pratical Test Standards. These standards are used by Designated Pilot Examiners when they administer a practical test for a certificate or rating. No system of standards can cover every eventuality, but the FAA's set work pretty darn well. Some argue (correctly, I think) that the PTS defines a minimum set of standards. An accomplished pilot should eventually be able to perform beyond those standards, whether the aircraft has a glass panel or steam gauges.

Training to proficiency, improving one's skills, and deepening one's mastery of the aircraft doesn't happen overnight, it should be a life-long goal. Instructors play an important role in this on-going process as does continuing education for pilots and instructors alike. Glass panels don't make or break the pilot, but a thorough, proficient, and technologically savvy instructor can.

Thursday, July 24, 2008

Catching Up

When a comment gets posted to this blog, I'm supposed to get an email. Unfortunately, an email is not always sent and I when I logged onto Blogger the other day I noticed several comments awaiting my review. Some comments had to do with older posts and I've put those comments up and responded to most. If you posted one of these delayed comments, my apologies for my less than timely response. To paraphrase one of the lines from the movie Repo Man, "I blame Blogger."

One commenter was really asking an unrelated question, so I'll quote it here and offer my opinionated answer:
I'm doing my initial issue multi engine instrument rating here in Aus, and everything is based off the NDB/ADF. You cannot gain an initial issue without demonstrating use of those.

In the US it seems the NDBs are being switched off, so I'm assuming the fundamentals of the rating is not geared around this antiquated piece of equipment.

Is this the case? How is the thing structured in the US?

Thanks if you have time to reply.

Tony
Good question Tony. NDBs are being phased out in the U.S., but they still quite common in some parts of the country. There are very few NDB stations remaining in California, but a large number are in service in the Midwest and Eastern states. I know at least one part 121 freight operator that requires pilot applicants to demonstrate an NDB approach. Whether or not an instrument rating candidate in the U.S. will be asked to demonstrate an NDB approach or NDB navigation depends to a large extent on where the practical test is being conducted.

The other obvious issue is the equipment installed in the aircraft the applicant is using for the practical test. If you don't have a functioning Automatic Direction Finder, the examiner can't very well ask you to demonstrate its use. This doesn't preclude an examiner from asking you theoretical questions about NDBs and their use during the oral portion of the test, it just makes it less likely. The same principal holds true for an IFR-approved GPS receiver and an autopilot. If you don't have a GPS in the plane or if the GPS database isn't current, the examiner can't ask you to use it. If your aircraft has a functioning autopilot, you'll be required to demonstrate its use on an approach.

Isn't it interesting how many old ADF receiver and flakey autopilots are suddenly placarded INOP just before a check ride?

There's an amazing amount of variety (or is it inconsistency?) in the approach facilities available in the U.S. where the list of possible navigation aids include ILS (instrument landing system), Localizer, LDA (Localizer-type Direction Aid), SDF (Simplified Directional Facility), VOR, NDB, and GPS/RNAV. Oh, I forgot to mention the MLS (Microwave Landing System): It was supposed to replace the ILS but it never really ... er ... took off. There are only a dozen or so SDF approaches in the entire U.S. and none in California, where I live and work. This situation has all the hallmarks of a system that grew up over time with a little being added here, then a little there. This means instrument pilots who fly to a variety of destinations in the U.S. need an almost encyclopedic level of knowledge on all these systems and their limitations.

NDB navigation outside the U.S. is generally alive and well, as I found when I flew through the Caribbean. So I do my best to expose instrument applicants to NDB navigation. I don't have access to many aircraft with a functioning ADF and there are just a few nearby NDBs around with which to navigate - Stockton and Watsonville come to mind. One can still use the G1000 to simulate an AFD/NDB setup.

Expanding this scenario further, consider flying IFR in a steam gauge aircraft (with separate, round instruments) versus flying a glass panel aircraft with integrated electronic displays. A pilot who learns in a steam gauge aircraft and earns his or her instrument rating could theoretically jump into a glass cockpit and launch into the soup. And vice versa. So while there are plenty of regulations and equipment in the U.S., I'm not sure how much "structure" there actually is.

Did I say that out loud?

Monday, May 26, 2008

Who's got The Button


With all the activity surrounding my ferry flight, I've had precious little time to keep up with happenings in aviation. As I made my way through the backlog of reading over the last few days, I noticed that Cirrus has released a version of their SR22 aircraft with a G1000 system instead of the usual Avidyne system. And in classic Cirrus fashion, their marketing team assures us that they are not just jumping on the G1000 bandwagon, no sir. This G1000 has been Cirrusized. The main differences between the usual G1000 and the Cirrusized G1000 are fairly limited, but in addition to the SVS option (Cirrus refers to it as "Perspective") there are some are big improvements.

First, the screens are 12" instead of 10" because bigger is better, right? Well at least there will be room for more fingerprints on the screen surface. The second difference is that this G1000 installation provides a keypad, something that has heretofore been limited to a few aircraft like the Columbia, Mooney, Bonanza, and Baron. If you ask me, all G1000 installations cry out for a simpler way to enter waypoints and limiting the keypad installation seems like more of a marketing gimmick that anything else. But look closely at the keypad and autopilot interface, because there is something revolutionary here.

One of my biggest gripes with the G1000 has been the design of the BARO knob (used to set the barometric pressure for the altimeter) and the CRS knob (used to set the HSI course when in VOR mode or in GPS with OBS mode engaged). In the traditional G1000, these two knobs are concentric with the large outer knob being the BARO setting and the smaller, inner knob being the CRS knob. If I had five dollars for every time I saw a pilot inadvertently change the BARO setting when they meant to adjust the HSI course, well I could have already retired and be sitting on the porch of my beach house, sipping rum from a glass with a little umbrella.

Next to the Cirrus keypad are heading, course, and altitude select knobs. These knobs no longer appear on the G1000 PFD or MFD. That's right, the combined CRS/BARO knobs are no more in the Cirrus. What's more, the frequently used heading and altitude select knobs are in a separate, easy to remember location. Pretty cool.

The other Cirrus difference is an additional button on the autopilot interface labeled LVL, which is being referred to as the Blue Button or the Panic Button. The idea is that if you enter an unusual attitude that does not exceed 75˚ of bank and/or 50˚ of pitch, pressing the LVL button will engage the autopilot and should bring you back to straight and level. I think having a single button to level the aircraft could be a handy thing during high workload moments, but a button for unusual attitude recovery?

One of the most basic skills an instrument pilot learns is to recover from an unusual attitude, especially when they are experiencing spatial disorientation - their inner ear is telling them something that is at odds with what their instruments are telling them. There are two basic unusual attitude scenarios: Nose up and nose down. A common mistake when trying to recover from an unusual attitude is failing to control airspeed, so the first thing to do is look at the airspeed indication. A fast or increasing airspeed means the nose of the plane is pointed down. A slow or decreasing airspeed means the plane is pointed up. I train my instrument students to initiate recovery by adjusting power first.

When recovering from a nose-up unusual attitude, I teach instrument candidates to think "stall recovery": Full power, reduce the pitch attitude, then level the wings. Nose-up unusual attitudes are often caused by a malfunctioning, runaway pitch trim. If that's the case, I can't imagine that the LVL button is going to be of any use since it relies on pitch trim which has malfunctioned.

The nose-down pitch recovery requires that the pilot initiate a spiral dive recovery, just like you learned when you first tried steep turns as a student pilot: Reduce power to idle, level the wings to reduce load on the airframe, then pitch up. If you don't level the wings before pitching up, you not only risk over-stressing the airframe, you may only succeed in steepening the bank angle with the resultant altitude loss and increase in airspeed - referred to by some as the JFK Jr. syndrome.

Assuming the Cirrus autopilot doesn't have autothrottle capability, I can't imagine how the level button can level the aircraft without potentially overstressing the airframe. Perhaps the designers are relying on the rigidity of the Cirrus composite airframe and its hugely effective ailerons. One would assume that they have tested this system and found it works satisfactorily, but I'm still curious.

More importantly, I wonder if this kind of system is going to breed a new kind of instrument pilot with questionable instrument flying skills. It seems doubtful that designated examiners will allow pilots to use the LVL button when demonstrating unusual attitude recovery during an instrument rating check ride, so maybe we're safe for now.

The one thing I wish Cirrus would fix is their own button design. Cirrus needs to protect important bolster switches from being inadvertently turned off. I actually had a student do this during an ILS in actual conditions. Reaching for the heading bug knob, we hit a big bump, his hand came down squarely on the avionics switch, the switch went off, and all the screens and G430s went dark. In Cirrus' G1000 design, the PFD softkeys are very close to the bolster switches and it's easy to imagine bumping one while trying to access a softkey in turbulent conditions. Perhaps they can Cirrusize that problem away ...

Wednesday, June 6, 2007

Obscure Minutae

So I'm sitting, sipping my late morning tea (yeah, I've given up coffee, but that's a whole 'nother story) when I see a neighbor coming up the steps with a letter in his hand. He pauses, starts to put it in our mailbox, then thinks better of it and knocks on the door.

"Hey Stephen, what's up?" I ask.

"Hi John, the mailman delivered this to our house and ... I thought it might be important." He hands me the official-looking envelope and I glance at the return address: U.S. Department of Transportation, Federal Aviation Administration.

I suspect he thought I was getting some sort of official notice about something bad. After all, how often does one get good news from the Federal Government? But I suspected the contents of this letter wouldn't be all that unpleasant.

The National Examiner Board (NEB) wishes to congratulate you on the successful completion of the examiner predesignation test(s) ...

The first thought that went through my mind was "Cool!" It's important to acknowledge that this is just another step in the process and it's certainly no guarantee of becoming a Designated Pilot Examiner. I have no idea whether or not my local FSDO has need for another DPE, but at least I'm "in the pool."

A few weeks ago, I had finally carved out enough time to really prepare for the knowledge test. Like all FAA knowledge tests, this one was peppered with questions that one must parse very carefully. Frankly, the answers to some of the questions are incorrect. For example, one question gives you a portion of a VFR sectional and asks when you'd need to talk to ATC on a trip from one airport to another at a specific altitude. It doesn't take much experience to realize that the proposed route will take you through Class C airspace, but the "correct" answer says "when entering Class C airspace." Now we all know that VFR aircraft must make contact with ATC prior to entering Class C airspace.

This sort of sloppiness normally doesn't bother me, but many test questions have several answers that are basically correct. The "distractors" are somewhat correct answers that are supposed to discriminate between people who know the stuff pretty well and those who know it really well. The people who know the stuff really well will choose the most correct answer. That's the theory, anyway. So one answer is more correct than the others and this teaches you to read the question very carefully and thoroughly. Spending so much effort concentrating on each sentence makes the imprecise, yet correct answers all the more annoying.

My application and test results are both good for 24 calendar months. DPEs and DPE candidates must also maintain a current flight instructor certificate and possess a third-class medical. If I'm selected, I'll have to present my logbooks and certificates, then take a practical test, then attend a standardization seminar in Oklahoma City. But I'm getting ahead of myself. I've completed only the first two steps. Now the waiting begins.
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