R44 Helicopter Autorotation Practice

A video from the FlyingMAir YouTube channel.

Join me and Trevor Hale, a certified flight instructor from Mesa, AZ, for a 30-minute flight where I practice straight-in and 180° autorotations. Before we finish up, Trevor demonstrates — or tries to demonstrate — the Vuichard Maneuver for recovering from settling with power/vortex ring state. This is a complete video of our flight and includes all conversation, both on topic and off-topic. It’s basically two pilots practicing together, chatting about the maneuvers and sharing flying stories. I considered editing out the downwind portions of each pattern we flew, but thought there was enough interesting chatter to keep it. We’re real people and we’re not trying to prove anything. We’re also not trying to show off, so don’t expect anything fancy.

Because so many folks seem to like the scenic flying I do in the area, I also include my flight to the airport and back to base from the airport. If all you care about are the autorotations, start the video at about 5:00 and end it when Trevor and I land. If you’re here for the scenery, just watch the first and last 5 minutes.

There’s a lot to say about this video and I sure hope folks read this description before they fill the comments with questions I answer here.

First of all, autorotation is a maneuver that helicopter pilots use to land safely in the event of an engine failure. (No, we don’t drop like a brick out of the sky when the engine fails.) Depending on the level of our certificates (private or commercial) we are trained to perform a variety of autorotations, including straight in, 180°, hovering (low), hovering (high), and full-down. We can also be taught more advanced versions that include slipping, spiraling, or making S-turns to hit a spot. In autorotation, the pilot has control of the helicopter and can go in just about any direction except up. (And even that is sometimes possible to a tiny extent.) We are tested on autorotations in check rides and practice it in biennial flight reviews. So yes: every helicopter pilot you fly with should know how to fly the helicopter safely to the ground in the event of an engine failure. If you still think “drop like a brick,” get over it.

I should mention here that if you want to learn how helicopters work, I highly recommend the FAA’s Helicopter Flying Handbook, which is available on the FAA’s website in HTML and PDF formats. This is a free book that tells you everything a helicopter pilot needs to know about flying helicopters in general. (A pilot also needs to know specifics about the helicopter he’s flying; you can find that in the Pilot Operating Handbook (POH) for the aircraft itself.) I’m willing to bet that any question you have about helicopter controls and maneuvers is answered in this book. Please don’t get annoyed if you ask a question in the video comments that’s answered in this book and I don’t answer it.

I’m flying with Trevor on this day to practice autorotations in preparation for an annual FAA Part 135 check flight. Although this will be my 16th or 17th Part 135 check ride, I’m still nervous every time I have one scheduled. I’m not a flight instructor and have never been one. So while a flight instructor practices autorotations almost every day with his students, I don’t. The result: in my 20 years of flying, I’ve done hundreds of practice autorotations when the average helicopter pilot, who was a flight instructor for at least part of his career, has done thousands. Although I’m confident that I could perform a survivable autorotation in the event of an engine failure at altitude — in other words, outside the shaded area of the height velocity diagram (see my blog post about the Deadman’s Curve here) — I like to get practice before a check ride to make sure I can do them within practical test standard requirements for my commercial helicopter certificate. (You can find the FAA’s Commercial Pilot Practical Test Standards for Rotorcraft (FAA-S-8081-16B) as a PDF). The other challenges for me in check ride situations are “text book” flying, which I generally don’t do. I’m referring to flying in traffic patterns at predetermined climb and cruise rates and doing other maneuvers to the exact specifications recommended in text books. Fortunately, pilot examiners understand the difference between text book and real world flying and they don’t usually ding me for sloppy traffic pattern work.

When I edited the video to combine synchronized footage from both cameras, I dialed down the helicopter’s engine/rotor audio to 40% rather than the 25% I usually use. I did this so you can hear how quiet it gets when I throttle down for the autorotation. The engine is still running, but it is not driving the rotor blades. This is how we practice autorotations without putting ourselves or the aircraft at added risk. While practice autorotations can still be dangerous — occasionally an engine actually does quit when you throttle down — keeping the engine running makes it possible to power back up when things start going south — as they started to my first practice 180° autorotation. I don’t practice full-down autorotations in my helicopter because of the increased risk of blade strike on the tail boom in the event of a hard landing. Why risk it? Experienced helicopter pilots might also notice that my flares at the bottom are not very aggressive. That’s because I worry a bit about a tail strike very close to the ground. Again, why risk it?

When Trevor says “bump it,” he’s advising me to lift the collective a tiny bit to prevent rotor overspeed. This is an R44 thing that is not an issue in R22s. There’s so much inertia in the R44’s rotor blades that if you push the collective full down in an autorotation, you run the risk of overspeeding the rotor system. In a real life engine failure, who cares? (We actually allude to that after one of the practice autos.) But when you’re practicing, you don’t want to mess up the helicopter with an overspeed so you’re constantly monitoring rotor RPM to prevent it. (The horn, which I discuss next, will warn you if rotor RPM starts to droop.) On my first practice 180 auto, I came dangerously close to overspeeding, which got me frazzled enough to screw up the rest of the maneuver. In real life engine failures, the only thing you really care about is getting the helicopter on the ground safely, so you’re thinking about keeping RPM high enough to keep flying, make your spot, flare to bleed off airspeed, and cushion your impact when you touch down. The flare will also build RPM, so you want to make sure you’re not already near the redline when you practice.

The sound you hear at the end of some of the autorotations is the low rpm warning system. In a Robinson, it’s set to go off at 97% RPM. That’s an unusually quick warning and part of the reason for that is that early R22 owners were unaccustomed to the low inertia rotor system and the extra early warning was an attempt to help prevent them from getting into unrecoverable low rotor RPM situation. A rule of thumb for Robinsons is that you can fly at 80% RPM plus 1% RPM per 1000 feet of density altitude. So if I’m flying at 2000 feet density altitude — which is about right for that day — the helicopter should stay airborne with just 82% RPM. Years ago, in advanced training at the Robinson Safety Course, the instructor demonstrated this by flying at 90% RPM for a lot longer than my horn-adverse brain wanted to. I blogged about low rotor RPM way back in 2010 here.

Trevor’s biggest problem when trying to demonstrate the Vuichard Maneuver for me (and you) was getting into settling with power/vortex ring state. This normally occurs when a helicopter settles into its own downwash and is the primary reason we don’t land vertically except perhaps at very slow descent rates. To practice a recovery from this condition, you need to get into it. We usually do this by getting into a high hover (zero airspeed) and then starting to descend until the descent rate becomes uncontrollable with the collective. There was simply too much wind that day to really start settling — it was blowing the downwash away from us. Trevor was still able to demonstrate it enough for me to get the gist of it. You can learn more about this maneuver in this Rotor and Wing article by the legendary Robinson flight instructor, Tim Tucker. This excellent article also explains what vortex ring state is and how it can be a problem. It’s a little technical, but so are most aerodynamics topics.

I hope you find the video interesting (at least) and educational (if you’re a pilot who really wants to learn about this). I know it’s not as exciting as the dramatic autorotations you can find in other YouTube videos. I don’t fly like that so if that’s what you come to my channel for, you’ll be disappointed. I believe in flying within my limitations and the limitations of my aircraft. That’s the only thing that can keep me and my passengers safe.

Why Flying Experience Matters

Experience helps pilots make good decisions.

I’m often amazed by pilots who seem outraged that they can’t find a decent flying job until they’ve logged 500, 1,000, or even more pilot-in-command (PIC) flight time. Too many of these people seem to think that they’re qualified to fly for hire as soon as they get their commercial rating and a few hundred hours of flight time.

How Pilots Gain Experience

Some new pilots don’t seem to understand that the best way to build time quickly is as a flight instructor (CFI) and they stubbornly try to enter the job market without sufficient experience.

I can name more than a few of these people who have been floundering around, taking odd jobs that give them a few hours of stick time here and there with little or no pay. Some even pay to work for the privilege of working for a helicopter owner. One good pilot I met managed to lock in a flying gig with decent flight time — I can’t use the word “job” because he never got paid at all — and added a few hundred hours to his logbook. Then the company’s owner disappeared, leaving the leased helicopter sitting on an airport ramp for its owner to repossess and the pilot locked out of the hangar he’d been living in because he couldn’t afford an apartment.

More than a few of these low-time pilots make their way to Washington in the summertime, with unrealistic dreams of logging hundreds of hours of flight time drying cherries. I’ve had guys offer to fly for me for free just to get the flight time. Really. (News flash: this ain’t Seattle. It’s usually dry here and the likelihood of flying even a dozen hours is slim. Don’t believe me? Ask the four pilots over the past two years who came up to fly for me who didn’t turn a blade in over four weeks.)

I didn’t come up through the ranks of a flight school to build my time, either, and it took nearly five years to get my first 1,000 hours. But it was different for me — I never intended to make flying a career. My second career put me in an excellent financial situation, one that included the ability to buy a helicopter and fly it around for fun. I put nearly 1,000 hours on my first helicopter, an R22, before selling it and buying the R44 I took delivery of in 2005. By that time, my goal was to simply earn enough with the helicopter to pay for the helicopter — a goal I achieved in 2007 when I started doing aerial survey work. That changed, and, by around 2012 (or thereabouts; I’d have to check my tax returns for an exact date), I was earning more as a pilot than as a writer and my flying career was in full swing. By then, I had more than 3,000 hours in helicopters, none of which was flying under the supervision of a flight school.

But is building time as a flight instructor the best way to get experience? I’ll always argue that it isn’t — as I did in a 2009 blog post titled “Real Pilot Experience.” In that post, I discussed the value of my experience at 2,100 hours vs. the experience of several newly minted 300-hour CFIs that I’d flown with. My experience was built flying real-life missions that required planning, decision making, and aviating while theirs was in a flight school environment, mostly with a slightly more experienced CFI sitting beside them. I thought it odd at the time — and I still do — that they were more qualified to teach people how to fly than I was.

Still, how else can a new pilot get the experience they so sorely need to be good, safe pilots on for-hire missions?

At Stehekin
I took Mr Bleu, Penny, and a friend up to Stehekin on Sunday for a nice day trip. In this shot, I’m parked next to the grass runway.

Landings and Wind

The other day, I blogged about the stress I felt at facing my 15th Part 135 check ride. In that post, I wrote a little about the decision making process on one particular maneuver. Here’s what I said:

On my check ride, I was asked to land in a confined space on a hillside. It was a relatively big area — I’ve certainly landed in a lot tighter spaces — and there were no real obstacles, although there were some open range cattle, fencing, and a water tank nearby.

I misjudged the wind. I thought it was light and inconsequential and set up my approach to give me a the best angle of approach. As I came near the landing spot, however, I saw trees blowing and felt the wind buffeting me. Left pedal kept things under control without getting too sloppy.

Still, I decided to go around and approach from a different angle. As I told the examiner as I started going around, “If the helicopter is light, performance is not an issue, and the wind isn’t too strong, I could make this work. But making a bad approach work is probably not a good idea on a check ride.” He agreed.

And that’s the difference between flying as a pilot and flying as a CFI. A pilot flies depending on her skills, the conditions, and her intimate knowledge of the aircraft. A CFI flies depending on the best scenario learned in training. We all know it’s best to land with a headwind and that’s what the CFI will always try to do. But an experienced pilot also knows that you don’t have to fly into the wind if other conditionals make a safe operation possible. In this instance, there wasn’t that much wind and we were light. I knew I could land safely with that right quartering tailwind; I’d done similar landings before. But I also knew that the FAA was more interested in a textbook approach. My going around showed good decision-making skills and the second attempt was a lot smoother with a lot less dancing on the pedals.

A Story about CFIs and Headwinds

About 10 years ago, I had to fly from Arizona to Washington State for cherry season — a 10+ hour flight. In those days, there were plenty of low-time CFIs who wanted to build time in R44 helicopters so they could meet the requirements of SFAR-73 for flight training. I think they needed a total of 25 hours. I’d let these guys, who already had their R44 endorsement, lease my helicopter with me as a passenger to bring me and the helicopter up to Washington State. They’d get cheap flight time and I’d get the helicopter moved at no cost. Win-win.

This particular flight has a lot of stories to tell, but I’ll focus on one: landing at Redding, CA. The airport is towered. We arrived late in the afternoon, light on fuel, from the south. The ATIS said the wind was about 4 knots from the south. The tower told us to land on Runway 34 — in other words, straight in with a slight tailwind. The pilot at the controls — a 300-hour CFI — acknowledged the instruction.

As we got closer to the airport, it came into view. The pilot was flying to the west of it. I assumed he didn’t see it — after all, when you fly at 500 feet AGL it’s not easy to see airports. I pointed it out to him.

“I was going to go around to the west in a downwind and turn midfield and land to the south,” he told me. For you non-pilots, that meant he was going to go around to the left and then land on the same runway but in the opposite direction.

I was floored and took a moment to figure out how to gently explain the problem with that. “Well, the tower told you to land straight in on Runway 34. So you have two options. You can either call the tower and request a landing on Runway 16 or you can land on Runway 34 as instructed.”

(Is it me, or am I correct in thinking that I shouldn’t be instructing a CFI?)

He took a moment to think about it, then changed course and landed straight in on Runway 34. Of course, he came in hot and did a quick stop so he wouldn’t overshoot the parking area. The quick stop was unexpected but well executed and he was so proud of it that he sought my approval when he touched down in our parking spot moments later.

I’m afraid I didn’t deliver. Instead, I said the first thing that came into my mind based on my experience-based knowledge of flight conditions and possibilities: “If you do that at the Grand Canyon on a 90° day with a full load of passengers, you’ll have one hell of a hard landing.” (I can be such a bitch.) Most sea level pilots are completely clueless about flying at high density altitude and I can tell stories about that, too.

In my defense for misjudging the wind, during my high reconnaissance of the landing zone, there were no wind indicators — flags, bodies of water, large trees, blowing dust, smoke, etc. — for me to get an idea of the wind. The trees down near the landing zone weren’t big — maybe 10 feet tall? — and I didn’t see any movement from above. The location we’d departed from less than five miles away had a light wind out of the west. I came in from the north, assuming the wind would be about the same. It was, but it was also a bit stiffer. A better low reconnaissance would have helped me see this, but in the grand scheme of things, it really didn’t matter.

And that’s my point. Whether the wind over my right shoulder was 4 knots or 10 knots didn’t matter. (And yes, 20 or 30 knots would have mattered and I definitely would have noted on such winds.) The helicopter, with half tanks of fuel and just two average sized people on board, was light. It was still cool out and we were operating at about 1500 feet MSL, so density altitude wasn’t an issue. The helicopter’s performance was good. I was making a relatively slow, shallow approach, so airspeed and descent rate would not have put me into a settling with power situation and the minor tailwind would not have caused me to overshoot my intended touch down spot. As I came in on my approach and felt the wind, I could easily keep the helicopter under control with the pedals. I knew from experience — over 2,000 hours flying R44s in all kinds of conditions — that I could make a safe landing.

The only reason I went around was because I was on a check ride. The FAA isn’t interested in seeing pilots who can make a bad approach work. They’re interested in pilots who can made good decisions, even if those decisions mean breaking off an approach to go around and do it differently. So going around is exactly what the examiner wanted to see. He wanted to know that I could recognize a bad approach and act accordingly.

And I need to make one thing very clear: I’ve done go arounds on bad approaches before, without an FAA examiner sitting in the seat beside me. I recall one in particular at Sedona Airport, elevation 4830, years ago. There were three of us on board with luggage and half tanks of fuel, so we were pretty heavy. It wasn’t hot, but it was windy. I made my approach to the helipad following the path I always followed — I flew in there a few times a month. But in this case, it was a little too squirrelly for me and I was dancing on the pedals a lot more than I like to dance. I broke off about 50 feet from the ground and went around. My second approach was more into the wind and a lot smoother. Could I have made the initial approach work? Maybe. But why risk it?

That’s what experience teaches you. It teaches you what works and what might not work and what definitely won’t work. It teaches you how to fix little mistakes before they become big mistakes. Or fatal mistakes.

Does it teach you everything? Apparently not, as my February incident proves. But at least that won’t happen again. I learned my lesson.

Don’t Fly Like a CFI

Before you go ape and blast me for the above heading, let me explain.

A CFI is taught to fly “by the book.” If you’re a CFI you know exactly what I mean. Or you should.

Let’s take an example: taking off. Common instructions tell you to follow these steps:

  1. Bring the helicopter into a 3 to 5 foot hover.
  2. Pitch forward with the cyclic to start moving forward.
  3. Add pedal as necessary to stay in trim.
  4. Push through ETL and pitch for 45 knots, staying within 10 feet of the ground.
  5. At 45 knots pitch for 60 knots to climb out.
  6. When at desired altitude, pitch for cruise speed.

Did I leave anything out? This is from memory and I never taught anyone to fly.

This is basically how low-time CFIs always take off (unless they’re in a confined space or have an obstacle) because (1) it’s how they were taught and (2) it’s how they teach their students. Do takeoffs like this for 1,000 hours and it’s pretty much engrained in you.

But is that how all helicopter pilots take off all of the time? Of course not. The situation you’re in determines how you take off.

Need to get away from the ground quickly because of the potential for dust or damaging downwash along your flight path? (I was once with a low-time CFI when he did a textbook takeoff right past an ultralight sitting idle next to his flight path. He’s lucky the owner grabbed it as we went by.) While a maximum performance takeoff (with its inherent risks) might not be needed, there is some middle ground — and yes, it might require some flight in the scary part of the height velocity diagram.

And landing. I cannot tell you how many times a low-time CFI flying with me entered a traffic pattern at an airport in the middle of nowhere, did a one-mile final approach to land on the runway numbers, and then hover-taxied on the taxiway a half mile to the midfield self-serve fuel pump. What’s that all about? If you’re flying a freaking helicopter, you don’t need a freaking runway. Landing to get fuel? Land at the pumps.

(Want a story about that? I was passenger on a flight my friend Jim did to Prescott Airport (PRC) in his Hughes 500c. We were headed for the restaurant, which was adjacent to a parking area. The tower there put him on a wide downwind for one of the runways on the other side of the airport. Jim barked into the microphone: “Negative! Helicopter One-Two-Three-Alpha-Bravo is a helicopter! We want direct to the restaurant! When the controller recovered from the shock of getting this demand after working with flight school pilots all day every day, he gave Jim exactly what he wanted. Did I mention that Jim was a retired Eastern Airlines pilot?)

About high density altitude experience

Landing or departing at high density altitude is no laughing matter, especially if your ship is heavy and your experience is limited. That’s one of the lessons learned from this doomed flight in Easton, WA about 11 years ago. That’s what I was thinking of when I departed with three passengers at near max gross weight from an off-airport landing zone on a hot day this July.

I’m not exaggerating when I say that I struggled to gain altitude without puling pitch past the redline on my manifold pressure gauge. There was hardly any wind, which didn’t help matters at all, and the air temperature was about 90°F. When you consider our landing zone elevation of about 800 feet, that put our DA at about 3200 feet. Fortunately, the area around us was clear of obstacles and we inched up into the sky.

Once on our way, everything was fine. But I knew I had two problems ahead of me: making a safe landing in a confined space landing zone at 1400 feet and then departing from that confined space when it was likely to be up to 10°F hotter. That put us at about 4500 feet DA. We would not burn enough fuel on the 20-minute flight to make a significant difference in weight.

The landing didn’t worry me that much. I have a lot of high DA experience and it really paid off. I came in smoothly and landed to a hover, then quickly but surprisingly gently put it on the ground. My passengers climbed out and went about their business. While I idled there, I looked around me at the shop buildings, wires, and mature apple trees, and decided that there was no way I’d depart from there with all of them on board. I didn’t need performance data to tell me that it wouldn’t be safe. That 2007 Easton crash was up front in my mind.

So I called my client and told her that I’d pick up the group at an airport about 5 miles away. It was only a minor inconvenience for them; they were attending a meeting at the orchard and the orchardist had a truck he could take them to the airport in. I departed the orchard landing zone and waited for them at the airport.

My OAT gauge read 103°F when they met me for departure. I loaded them up, pointed the helicopter into the wind, and did one of those textbook takeoffs over the ground and across the runway of the deserted farm country airport, pitching for a 60 knot climb before I reached the fence line. We climbed out smoothly and safely, which is what any pilot should aim for.

And here’s my argument for why experience matters: According to the accident report, the Easton accident pilot had “a total time in helicopters of 2,122 hours, 1,492 hours of instruction given in helicopters, 160 hours in the last 90 days, 24 hours in make and model…” While 2,122 hours of helicopter experience is considerable, she had just 24 hours of experience in the make and model of the crashed helicopter (an R44). She was based in Seattle and had done the vast majority of her flying at sea level. The calculated density altitude at the crash site was 6,841 and the helicopter was only 33 pounds below max gross weight. The probable cause was listed as “The pilot’s improper planning/decision in attempting a downwind takeoff under high density altitude conditions that resulted in a loss of control and impact with terrain.  Contributing to the accident were the helicopter’s gross weight in excess of the maximum hover out of ground effect limit, a high density altitude, and the gusty tailwind.” I have to think that her limited experience with the helicopter and high DA conditions, combined with an understandable desire to please the client, contributed to bad decision making and execution of departure maneuvers.

Only experience can help protect you from a similar fate in a similar situation.

But what I’m trying to say here when I tell pilots not to fly like flight instructors goes beyond modifying standard procedures to fit a situation. It’s this: You will never become a better, more experienced pilot if you don’t push the edges of what’s comfortable to you.

Now I’m not saying you should go out and fly like a lunatic, pushing your skills and aircraft to their limits. That’s a good way to get yourself and possibly others on the ground hurt or killed. I’m saying that you should push gently to expand your comfort level and learn valuable lessons along the way.

Has your flight school forbidden flights when the winds exceed 15 knots? Fly when the wind is 20 knots. Then, when that’s comfortable, bump it up to flying at 25 knots. (Obviously, you should consult your pilot operating handbook to see if there are any limitations.) Don’t be like I was when I went to work at the Grand Canyon. After being taught to avoid flying in high wind situations, I was suddenly required to fly when the wind speeds were up to 50 knots. I learned to deal with high wind a little faster there than I probably should have.

Does your flight school limit flights to a handful of airports? Fly somewhere else. (Yes, get permission if necessary. Duh.) One of the best ways to get real-life flying experience is to fly to different places. It works your flight planning, navigation, and communication skills. It challenges you to think about your approach and landing rather than to do the same thing you’ve been doing for weeks or months.

If you’re a sea level pilot — I’m talking about someone who has learned to fly and usually flies mostly at or near sea level — do yourself a huge favor and fly to a destination above sea level. Someplace high enough where you can really feel the difference in the aircraft’s performance. Then take it to another destination even higher. Do you really want to get your first high density altitude experience when you get a job flying tours at the Grand Canyon, elevation 6600 feet? (And yes, I’ve done running takeoffs from Grand Canyon Airport twice: once in my R22 and once in my R44. They teach us that stuff for a reason.)

Do long cross-country flights. Solo. That’ll really test your flight planning and navigation skills — especially when unforecasted weather or other conditions force you to choose an alternate destination airport or land off-airport to wait out a storm.

I guess what I’m trying to advise is to do the things CFIs don’t generally do when they’re working as CFIs. But don’t go nuts. Build your skills and confidence levels slowly.

And shame on flight schools that don’t give their CFIs or commercial students the opportunity to do these things.

Mr Bleu and a Friend
Here’s Mr Bleu with a friend from Lake Chelan. We occasionally work together to take more than 3 passengers on charter flights. Here, we’ve landed in a soccer field beside a cherry orchard.

Passionate for a Reason

I feel very passionate about real life vs. CFI flying and even more so after my own accident.

I’m not a complete idiot. I realize that my accident was caused by two things:

  • Distraction in the cockpit. I was flying VFR and I should have had my eyes outside the cockpit. Instead, I allowed myself to get distracted and failed to maintain awareness of my flight path.
  • Lack of experience with night flight. Seriously! What was I thinking? I’ve got 3,700 hours of flight time, but less than 100 hours of that is at night. How could I possibly have allowed myself to get as complacent as I obviously was about the additional challenges of flying in the dark?

I’m lucky to be alive and I know it. And although I’m seriously embarrassed about the mistakes I made that led to my crash, I’m not too embarrassed to use my learning experience to teach others.

Throughout this blog, you’ll find lots of lectures about safety, many of which touch upon NTSB-analyzed accident reports. When reading between the lines, so many of them can be traced back to insufficient pilot experience with the situation or aircraft.

Don’t be one of those pilots. Push yourself gently to expand your skills and knowledge with real-life scenarios you can only get from non-CFI style flying. And never stop learning to be a better pilot.

Helicopters 101: Ground School

An excerpt from my upcoming book about my first ten years as a helicopter pilot.

Articles in the Helicopters 101 series:
Flight Planning
CG
Weight
Hover Charts
Ground School

At least five years ago, I began writing a memoir about my first ten years as a helicopter pilot. I put it aside for various reasons, picked it up, put it aside again, and have now picked it up again. At the rate I’m going, it could probably cover my first twenty years.

Since I’m trying to spend more time working on that book than writing blog posts, I figured I could excerpt some of the book’s text as blog posts. (That kind of makes sense since a lot of the book will come from existing blog posts.) This is an example from my chapter about ground school during my primary training in the late 1990s. I think it provides a good overview of what helicopter pilots learn in ground school. It also provides some very useful links for free learning resources.

A side note here…like any other blog post that will appear in my book, this one is likely to be removed from the blog once the book is published. When that time comes, the content of this post will be replaced with a link to buy the book. A girl’s gotta make a living, no?

My flight training days nearly always included up to two hours of ground school sandwiched between two blocks of flight time. Ground school is required to learn the multitude of things a pilot needs to know to be safe and legal in the eyes of the FAA⁠, such as:

  • Pilot requirements and responsibilities. What a pilot needs to legally fly in the United States and what her responsibilities are as pilot in command.
  • Helicopter aerodynamics. How helicopters fly. (Spoiler alert: they do not “beat the air into submission.”) This includes such concepts as lift, translating tendency, Coriolis effect, gyroscopic precession, translational lift, and more.
  • Helicopter components and flight controls. Helicopter rotor systems, power plant, transmission, cyclic, collective, throttle, and anti-torque pedals.
  • Basic, advanced, and emergency maneuvers and procedures. All of the procedures and skills a helicopter pilot needs to have to fly safely in normal and emergency conditions.
  • Airspace and air traffic control (ATC). The different types of airspace and a pilot’s responsibilities for operating in each of them, as well as the basics of communicating and complying with air traffic controllers.
  • Navigation. The basics of getting from Point A to Point B safely, without getting lost or wandering into restricted airspace. This includes all kinds of tools for navigation, from paper charts and plotters to radio navigation aids to GPS.
  • Weather. Any kind of weather that can affect flight—which is pretty much any kind of weather.
  • Aeronautical decision making (ADM) and pilot preparedness. Cockpit resource management and a pilot’s physical and mental condition to fly.
  • Aircraft specific information. The specific details about the aircraft the pilot will fly, such as mechanical components, performance, limitations, emergency procedures, and weight and balance.

This is only some of the information a pilot needs to know to pass written, oral, and practical tests and get a pilot certificate.

Just about all of this information can be found in four different government-published resources that are available online for free at the FAA’s website1:

  • Federal Aviation Regulations (FARs)2 are the actual laws governing flight in the United States. Written in a form of legalese, they can be frustratingly difficult to understand and often refer back and forth to each other to form a web of confusion. Occasionally, someone puts out a book purporting to translate FARs into plain English, but these don’t usually cover all topics and can contain outdated information when the FARs are updated—which can be several times a year.
  • Aeronautical Information Manual (AIM, formerly the Airman’s Information Manual) is a much easier to read and understand guide that covers most of what a pilot needs to know. Like the FARs, however, it’s geared toward airplane pilots, so there’s a lot of information a helicopter pilot doesn’t really need to know.
  • Pilot’s Handbook of Aeronautical Knowledge (FAA-H-8083-25B) is a textbook-like guide that covers all the basics of flying airplanes in an illustrated format that’s easy to read. Note that I said “airplanes” here—that’s because this book goes into a lot of detail about airplane aerodynamics, design, and controls, most of which helicopter pilots don’t need to know. But it also covers airspace, weather, airport operations, and other topics all pilots need to know.
  • Helicopter Flying HandbookHelicopter Flying Handbook (FAA-H-8083-21A) is another textbook-like guide that covers all of the basics of flying helicopters. This is the book I recommend to anyone interested in helicopter flight. The illustrations and examples do an excellent job of teaching complex aerodynamic concepts specific to helicopters. This book does not, however, cover airspace, weather, or other non-helicopter specific topics that helicopter pilots still need to know.

Aircraft-specific information can be found in the pilot operating handbook (POH) that comes with and must be on board every aircraft. Those are often available online from the aircraft manufacturer.⁠3


Footnotes:
1 There’s a wealth of information for pilots at www.faa.gov. You can also buy print versions of these resources from various publishers.
2 I should mention here that what most people refer to as the FARs is actually called the “Code of Federal Regulations Title 14 Aeronautics and Space” or just “CFR Title 14.”
3 If you’re interested in seeing the pilot operating handbook for the helicopter I learned to fly in, a Robinson R22, visit http://robinsonheli.com/r22_poh.html.