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New Year’s Eve and some ground reference maneuvers

Well, we are on the cusp of another year being over, and what better way to spend the morning of New Year’s Eve than going for a flight lesson?

Today we started with some classroom time to go over ground reference maneuvers. Up until now, all of my flight training has been focused on how to actually fly the airplane — turning, climbing, descending, etc… While doing these lessons in the practice area, I’ve been able to sort of meander around without really worrying about where I was (with my CFI making sure we stayed where he wanted us to be). Today I had to start learning to fly a prescribed path…as my instructor put it, this is the first time I’ve been told where to fly the airplane instead of how to fly the airplane.

We went over two types of ground reference maneuvers: A rectangular pattern, where you pick out a rectangular field or other reference on the ground and practice flying along its boundaries, and turns around a point, where you pick an object on the ground and turn 360° around it, keeping your lateral distance from the object constant. These sound like simple exercises, but when you factor in the effect of wind on your flight path, they can become an exercise in frustration.

We preflighted the plane and I got us in the air (my takeoffs are becoming better, although I still have some room for improvement). My CFI directed me to a field he likes to use for the rectangular patterns and we started working on those first. I felt like I was behind the airplane the entire time. I’m still having trouble getting my sight pictures correct, so my CFI was constantly on me to correct my pitch attitude. Also, I didn’t have a good sense of how the wind would impact my turns — when the wind is blowing the plane, you have to crab the plane into the wind a bit if you want to maintain a straight track over the ground. You also need to alter how steeply you bank your turns, depending on which direction the wind is coming from relative to your turn. I wasn’t doing a great job of this so my rectangular pattern was a bit misshapen!

The purpose of teaching the rectangular pattern is to get you used to the concept of the airport traffic pattern, where you need to fly a rectangle around the runway you want to land on. It is really important to be able to fly the pattern accurately, since getting it wrong in the traffic pattern can disrupt the traffic flow of the airport and potentially put you in a collision path with another aircraft. I’ll definitely need to work on this some more.

Ground reference maneuvers - rectangular pattern
Rectangular patterns

We then flew to another area and did some turns around a point. Again, the wind caused me some trouble and I also had a bit of difficulty picking out good references on the ground to help keep me on track. Something else I struggled with was keeping my altitude constant while doing my turns, which is a requirement to pass the checkride. I wasn’t doing too badly, but I was starting to get a little frustrated.

Ground reference maneuvers - turns around a point
Turns around a point

We finished up and I headed back to DXR where my CFI got us back on the ground. I left the airport feeling a bit down on myself and thinking I might never get the hang of this. After some reflection, however, I remembered that this was the first time I was doing any flight while trying to keep reference to the ground and this would all feel like second nature by the time I was ready for my checkride. I compared it to driving a car — how I could effortlessly keep the car centered in my lane and knew exactly how much to accelerate or brake during turns to keep the car where I wanted. This didn’t happen after my first driving lesson, but gradually as I gained more experience.

Frustration aside, it was a fun lesson. It was the first lesson where I really got to focus on the view of the ground from the plane, and it reminded me of how lucky I am to be able to pursue this dream and why I love flying in the first place.

Flight time today: 1.2 hours
Total flight time to date: 9.1 hours
Total takeoffs to date: 3

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Ground School – Airspace and sectional charts

Today the weather did not cooperate, so it was off to the classroom for a lesson on airspace. I really enjoyed this lesson because we actually broke out the sectional chart and studied the airspace around Danbury. This was the first lesson that touched on topics used when actually taking the plane someplace, as opposed to the early lessons which were focused on flight theory and how to properly control the aircraft during maneuvers. There was something very exciting about this and it felt like I had reached another milestone (albeit a small one) in my training.

The airspace in the US is incredibly complex, and looking at a sectional chart is overwhelming at first. There is a ton of information packed into these charts! Here’s a small portion of the New York Sectional showing my home airport of DXR (click for a larger version):

NY Sectional chart

Understanding airspace is really important around Danbury, as we have a lot of heavy-duty airspace very close to our airport. We’re a stone’s throw from the massive NYC Class Bravo, and the entire NY metro area can get very busy at times. That is one reason it will take me a while before I am signed off to solo — my instructor has to be sure I won’t accidentally find myself flying over JFK or into the flight path of an arriving 747!

I purchased my own copy of the NY sectional chart and will start studying it at home. Another great resource is SkyVector, a flight planning website which has stitched together all of the US sectional charts, allowing you to scroll around and explore any airspace in the entire country without needing to purchase a whole suite of charts.

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Steep turns

Today started with a quick ground school lesson on steep turns. For the PPL, a steep turn is defined as a 45° angle of bank. You have to be able to demonstrate steep turns without losing or gaining excessive altitude to pass the PPL checkride.

We went up in the plane and practiced some of these. I think I did pretty well — especially considering it is a much different sight picture than I am used to. I did lose altitude on a few of them, but towards the end of the lesson I felt like I was getting the hang of them.

One interesting thing about steep turns — the G-forces you feel are pretty intense. You really feel yourself being pushed into your seat and you can get bit lightheaded performing them.

Effects of G forces
Source: xkcd.com

My CFI demonstrated a 60° angle of bank turn to show me what those G-forces felt like. It reminded me a bit of a roller coaster — definitely something to be aware of as I progress through my training! As he performed the turn, I tried to lift my hand in the air — it was pretty difficult! I can only imagine being in a fast spin, disoriented, feeling several G’s of force pressing on you, and trying to execute the right control sequence to recover the airplane (assuming you stay conscious long enough). It’s obviously much better to avoid getting yourself into a situation like that in the first place!

In normal flight, you should never have to perform a 45° turn (much less a 60° turn), but I’ll need to perform these during my checkride. I’ll definitely need to practice them some more, but all in all I think I handled the plane fairly well today.

Flight time today: 1.1 hours
Total flight time to date: 7.9 hours
Total takeoffs to date: 2

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Slow flight and the dreaded stall!

Today we practiced slow flight.

We started the day with a ground school lesson on how to check weather. My CFI showed me the awesome Aviation Weather Center, which has become one of my favorite bookmarks. After determining the weather wasn’t bad enough to prevent a lesson, I grabbed the keys to N1727V.

Out to the plane, preflight, taxi to the active runway (still feel like a drunk duck), and takeoff performed by my CFI. This time he had me do the takeoff while he assisted on the controls. Out to the practice area we go.

We worked on slow flight — this is where you fly the plane at slow speeds (duh!). It is designed to teach you how the plane feels at slower speeds — the controls are less effective and you need more control input to move the plane around where you want it. This is a precursor to landing, where your final approach is done at slow speeds.

My CFI then demonstrated a stall. At altitude, a stall is easily corrected by pitching down and gaining airspeed. Where stalls are killers is in low altitude, such as when coming in for a landing. If you get too slow or let the angle of attack get too high when low to the ground, you can stall and fall into the ground with Very. Bad. Results.

Luckily, recovery (given that you have sufficient altitude) is fairly simple — get the nose down and increase airspeed to decrease the angle of attack and get that airflow normalized over the wing.

After the stall and recovery demo, we headed back to land at DXR. Another lesson in the books!

Flight time today: 1.4 hours
Total flight time to date: 5.6 hours

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Ground School – Stalls

The snow had stopped but the clouds and winds conspired to keep me on the ground today. We spent my lesson in the classroom going over stalls.

When a non-pilot thinks “stall” they think of something like a car stalling, where the engine stops. That is not what a pilot refers to when they talk about stalls. A stall in aviation is where the wing of the plane cannot generate enough lift to maintain flight — the angle of attack of the wing is too great to keep a smooth airflow over the surface of the wing. The disrupted airflow spoils the lift and the wing stalls, causing the plane to pitch down or to the side.

My instructor taught me about the warning signs pointing to an impending stall and how to recover from one. A stall can be a very serious event (one of the leading killers of pilots when it occurs at low altitude), so this was one somber lesson I really took to heart.

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More straight & level flight

Today we started with a quick ground school lesson retouching on the four fundamental forces of flight. I then went out to N1727V and did my preflight while being watched by my CFI. I did my first radio calls, first to Danbury ground to request taxi clearance, then to the tower when we were ready for takeoff.

This was my first time using my new David Clark headset and all went well! I love the sound quality and don’t mind that they aren’t noise cancelling. At this stage in my training I want to hear the noises the airplane is making so I have a chance of knowing if something isn’t working correctly.

I still don’t feel entirely comfortable taxiing — I can hold a straight line now, but have some problems with speed control and shifting my feet to the brake portion (the rudder pedals act to steer the nosewheel on the ground — the lower portion of the pedals can be depressed to steer left and right, while the tops of the pedals activate the brakes).

My CFI did the takeoff again and we went to the practice area to work on my basic maneuvers — straight & level flight with the airplane properly trimmed and various types of turns. After we were done, my CFI had me fly back to the airport where he took over and landed, explaining the process as he did so.

One thing my instructor is very big on is flying using the sight picture out the windows instead of relying on your instruments. After all, instruments can fail at any time (especially during training when your CFI decides to cover one of them!), so learning what looks “right” for a given maneuver is very important. You can tell what the plane is doing by using visual clues, such as how the nose is pitched relative to the horizon, or the angle the wing is making with the horizon out the side window. This is something I’m struggling a bit with — there are a lot of different attitudes to learn (level flight, different bank angles while turning, etc…) and it is going to take some time before I know what looks and feels correct.

So, some stuff is starting to click and other stuff still seems well above my ability. I’ve been told this is a normal feeling during training, but it is a bit discouraging — I’d like to think I am a natural pilot and would take to this like a duck to water, but it seems this will take quite a bit of work to master. I didn’t expect any less, but I’m still a bit frustrated that I’m not naturally gifted as a pilot!

Flight time today: 0.9 hours
Total flight time to date: 2.7 hours

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Finally in the air again!

Today the weather finally cooperated and I tasted flight again!

We started off with a lesson on how to preflight the airplane. I am flying a 1975 Cessna 172M (N1727V). The preflight is not rocket science, but there are a lot of details that need to be checked prior to taking to the skies.

The preflight is your one opportunity to catch a problem with the plane on the ground before it becomes a problem in the air. We check the general condition of the aircraft, all of the flight surfaces, the fuel quality (testing for water and other contaminants as well as the proper fuel type), the lights, oil, prop condition, tires and brakes — basically a thorough check of everything that could make the difference between a pleasant flight and an emergency in the making.

After learning how to preflight I took to the left seat for my first flight in N1727V. I taxied to the runway (still very uncoordinated) and my CFI performed the takeoff while explaining what he was doing. We climbed out and headed to the practice area.

I did have one equipment failure on this flight — luckily, it wasn’t something on the plane! My headset (one of the flight school loaner sets) started cutting in and out, making it impossible to hear my CFI tell me what was going on. I had to bend the headset cable trying to find a spot where they worked, then sit on the cable to try and keep them working. Then everything would be good for a minute or two until I shifted in my seat a bit and had to start the whole process all over again. It was difficult and distracting but at least I was able to get 90% of what my instructor said and didn’t have to scratch the lesson.

We practiced straight & level flight, level turns, and I started to learn how to trim the aircraft. The C172M has elevator trim, which basically means there is a wheel I can turn to take the pressure off of the elevator. Practically, this means once I achieve a certain speed or attitude of flight, I can adjust the trim wheel so I don’t have to continually apply pressure to the yoke. This is not only a convenience factor (constantly applying forward or back pressure to the yoke will become tiring over a long flight), but also a safety issue — the plane should always be in trim so you aren’t fighting the aircraft during maneuvers.

The flight was over before I knew it. My CFI landed and we taxied back to the ramp. As soon as we landed I bought one of the ubiquitous mint-green David Clark headsets…no more nasty loaners for me!

Flight time today: 0.9 hours
Total flight time to date: 1.8 hours

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Ground School – Aerodynamics

Saturday, December 3rd was a bit of a nasty, rainy day, so we headed to the classroom to cover the basic aerodynamic principles of flight. Every aviator needs to be aware of the four forces — lift, drag, thrust, and weight:

The four forces of flight

Or, as the more pragmatic pilots see them:

The four REAL forces of flight

We talked about how these forces would impact straight & level flight, level turns, and climbing & descending turns. We touched on P-Factor, adverse yaw, and a bunch of other topics that went over my head but will be explored in more detail later.

Finally, we completed my IACRA registration for my FAA student pilot certificate. I will need this certificate to solo — quite a ways off yet, but no reason to delay applying for it!

Can’t wait for my next lesson tomorrow!

 

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Ground School – Aircraft systems

I went to the airport for my first “real” lesson and was a bit disappointed to learn that we would not be taking flight this morning. It makes sense, there’s a lot to learn about how this all works first. While fun, it would be a waste of money to go up and mess around in the air without at least a cursory understanding of what I’m doing.

Today we worked on aircraft systems. My CFI went over all of the major systems of the aircraft — electrical, ignition, engine, fuel, and vacuum. We touched on the flight instruments and where they get their information from.

We also reviewed the airport diagram for my home airport, DXR, and discussed radio comms for this airport (DXR is a towered Class Delta field, so I’ll be talking to tower every time we fly).

A lot to take in, but I’m up to the challenge!