The Stengel Angle

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My Guest Lecture at the University of Michigan

Posted by mikestengel on November 14, 2012
Posted in: Regulations, Techy stuff, Training. Tagged: aero, aerodynamics, aerospace, aerospace engineering, air france 447, ann arbor, certification, FAA, FAR federal aviation regulations, federal aviation administration, flying, human factors, lecture, materials, michigan, operating rules, Part 25, part 61, part 91, pilot, structures, training, university of michigan, wolverines. 1 comment

On October 22, 2012, I gave a guest lecture in Aerospace Engineering 201, an Introduction to Aerospace Engineering class  at the University of Michigan. As a Certified Flight Instructor, I outlined the pilot’s perspective to the students and highlighted how they should be thinking of their end-user when conducting their work as engineers. I also highlighted some developing trends in the industry to emphasize the various fields they can specialize in.

As promised, here is the video of the lecture, which is synchronized with the PowerPoint slides I presented. I’ve still been very busy with school (second round of midterms this week) and work, which is disappointing because I miss posting frequently on here. Hopefully I’ll find more time for this site soon.

Update

Posted by mikestengel on October 8, 2012
Posted in: Miscellaneous. Tagged: aerospace engineering, air traffic control, air traffic control system, airline alliances, American Airlines, aviation, preliminary design, traffic control system, transportation, unmanned aerial vehicle. Leave a Comment

Hello everyone. I’m sorry that I have not been able to make a new post in a while, but school has been keeping me plenty busy and I’m working part-time as well. I enjoy writing here very much, and I’m disappointed that I haven’t had the time to consistently update the site. Here’s a quick update though to give an overview of some possible future posts:

  • I’d like to write about what engineering students actually do and what we learn in some of our classes. I still have a report from my Introduction to Aerospace Engineering class which was a preliminary design report for an Unmanned Aerial Vehicle (UAV), so I’d like to post that and dissect our methodology and process.
  • I’ll be guest lecturing the Intro to Aerospace Engineering class this month, giving the students the pilot’s perspective of things and highlighting why it’s important for engineers to know what kind of conditions the end-user of their products operates under. I’ll see if I can record the lecture and post it to YouTube.
  • If I have the time to do the research, I’d also like to take a closer look at current industry events, namely the recent activity in shifting airline alliances (i.e. Qatar joining OneWorld), an update of American Airlines’ bankruptcy, progress of the Next Generation (NextGen) Air Traffic Control system integration, the impact of mergers on airfares, and more.

If there’s a topic you’re curious about, feel free to let me know and I’ll see what I can do.

A Closer Look At Boeing’s Pilot Forecast

Posted by mikestengel on August 29, 2012
Posted in: Airlines, Training. Tagged: age 65 rule, airlines, American Airlines, boeing, CMO, current market outlook, Delta Airlines, fedex, jetblue, mandatory retirements, north america, pilot demand, pilot forecast, pilot retirements, pilot shortage, pilots per aircraft, southwest, United Airlines, US Airways. Leave a Comment

Figure 1: Boeing predicts a global demand of 460,000 pilots over the next 20 years, with the largest demand in the Asia-Pacific region.

This year, Boeing released their Current Market Outlook (CMO), revealing how they believe the commercial aviation market will develop in the next 20 years. It is a very broad report, covering many subjects from economic growth by region to worldwide fleet growth. What caught my interest, however, was their pilot forecast, which calls for a demand of 460,000 pilots through 2031. According to Boeing, this large demand outlook is driven by quickly developing aviation markets in the Asia-Pacific region, which accounts for 40% of the demand. Boeing estimates that China alone accounts for 16% of the demand, or 71,300 pilots.

Many would be quick to criticize the outlook, alleging that Boeing would intentionally paint a rosy picture to soothe investors and attract attention. That is why I tested the validity of the forecast and I’ll reveal my findings in this post. However, I will admit that I could only focus on the North American market due to the lack of available data for all regions. I will explain my methodology and numbers step-by-step below.

First, pilot demand must be split into two categories: new pilots and replacement pilots. Here I am defining “new pilots” as pilots that are hired as the result of growth within a company (i.e. acquiring new aircraft), while “replacement pilots” would be hired to replace pilots who have retired. Here, I’ll cover the new pilots. But how can we measure that? Well, we have to look at fleet growth since airlines would only hire new pilots when they grow their fleet. Boeing’s fleet forecast in their CMO estimates the current North American fleet at 6,650 aircraft and predicts the fleet will grow to 8,830 aircraft in 2031. Therefore, the North American fleet is estimated to grow by 2,180 aircraft.

Figure 2: On average, U.S. air carriers employ roughly 13 pilots per aircraft that they operate

But how many pilots does that fleet growth represent? To answer that question, I surveyed six major U.S. airlines: American, Delta, United, US Airways, Southwest, and Jetblue. For each carrier, I looked for two pieces of data for the 2002-2011 time period: the number of pilots employed and the number of operating aircraft. After collecting that data, I calculated the average pilot-to-aircraft ratio for that time period, and discovered that, on average, those six major airlines employ roughly 13 pilots per aircraft that they operate. The standard deviation, a measure of the dispersion of the data, was 1.6, indicating that the numbers were close together.

Now, with an estimate of the number of pilots employed per aircraft operated and an estimate of fleet growth in North America, we can roughly calculate how many pilots are needed for growth. Multiplying 13 pilots per aircraft by the growth of 2,180 aircraft gives us 28,340 pilots. We are not done yet though. Next, we must look at the number of pilot retirements.

Figure 3: Mandatory pilot retirements are expected to peak in 2024, and the total retirements should be at least 36,000 pilots.

Luckily for me, I found some data for mandatory annual pilot retirements among some major U.S. airlines: American, Alaska, Delta, United, US Airways, and FedEx. I say that they are mandatory retirements because airline pilots are required to retire by age 65 in the United States. While this data does not paint the complete picture of pilot retirements in North America, it does give us a really good idea and can be used at least as a benchmark. On the right, Figure 3 compiles that information, showing that mandatory retirements are expected to rise very quickly and reach their peak around 2024. The total number of mandatory retirements for the 2012-2031 period is 35,755 pilots according to this data.

Now that we have an estimate for the number of “new pilots” and “replacements pilots”, all we have to do now is add the two together to get our estimated total pilot demand. Simple addition (28,340+35,755) yields a value of 64,095 pilots.

So how does that compare to Boeing’s forecast? In Figure 1, you can see that Boeing predicts a demand of about 69,000 pilots in North America for the next 20 years. That is pretty close to my estimate. Also, considering that my analysis did not take into account pilot retirements in Canada and that the data I used for the United States was incomplete (although it does give us a good benchmark), I would say that Boeing’s forecast is completely plausible. Furthermore, my analysis was completed with mostly independent data, except for the use of Boeing’s fleet forecast to estimate the number of “new pilots”.

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