Monthly Archives: June 2014

Instrument hood, Slow flight and Landings

Today was an early morning flight at 8am. We got to the hangar and started preflight before Steve arrived. It is my turn to fly today and we started with some instrument work under the hood.

Next, we worked on slow flight. Twice I put the plane into slow flight. On the second attempt, Steve asked me to make a shallow left turn. I banked to the left (wings lower on the left) and to keep the turn coordinated, I had to relax the right rudder just a little bit. I relaxed it a bit too much so there was more yaw to the left as I was also banking. The plane has an over banking tendency since the outer wings are moving faster than the inner wings leading to more lift on the outer wings. Since the plane was close to stall speed (stall horns blaring constantly during slow flight) I thought the plane could go into a stall and left spin so I instinctively went for the throttle to give it a little power. This is when Steve caught my arm and pulled it back (see 6:21 in the video). He mentioned that power in that situation could have got me into a lot of trouble. Later, he demonstrated (at 7:05) what would have happened if I had given it throttle in the middle of the left turn close to stall speed. He didn’t give any power but his demonstration showed that we would have entered a spin. He quickly corrected it but you can see that the plane was in an unusual attitude of a very high bank angle to the left. If I had given power in that situation, we could have gone into a steep spiral. Phew.

We then did three touch and go landings at New Jerusalem. But first, we flew over the airport to check wind conditions since there was no weather information for the non-towered airport. After the landings, in the way back to Livermore, at 14:08 in the video Steve demonstrates how a fixed pitch prop’s RPM increases with nose down pitch when the airspeed increases.

Radio communications for VFR

The FAR/AIM chapter 4, section 2 defines the general framework for radio communications. Starting with the facility being called, then your full aircraft identification, state your position when operating on an airport surface, type of message to follow or your request itself if it is short. Here are some examples that I’ve encountered so far.

Just before starting to taxi out of the hangar after receiving a weather briefing (Yankee)

Livermore ground, Cessna 2 5 Echo Sierra Northeast Hangars taxi for takeoff with Yankee

Ground responds

Cessna 2 5 Echo Sierra Livermore ground runway 2 5 right taxi via Bravo

Pilot’s acknowledgement

2 5 right via Bravo 5 Echo Sierra

After getting to the run-up area and completing the pre-takeoff checklist

Livermore tower Cessna 2 5 Echo Sierra 2 5 right ready to go right downwind

Tower responds

Cessna 2 5 Echo Sierra Livermore tower number 2 for departure hold short of runway 2 5 right

Pilot acknowledges

Hold short 2 5 right 5 Echo Sierra

Tower asks to wait

Cessna 5 Echo Sierra runway 2 5 right, lineup and wait, traffic in the pattern

Tower gives clearance for takeoff

Cessna 5 Echo Sierra, the upwind traffic is in the right pattern, right downwind approved runway 2 5 right, cleared for takeoff

Pilot’s acknowledgement

Cleared for takeoff 2 5 right, 5 Echo Sierra

Approaching Byron for a landing. It is a non-towered airport.

Byron area traffic, Cessna 2 5 Echo Sierra is over Discovery Bay, inbound for right traffic runway 3 0, Byron

Approaching Byron airport for a landing. It is a non-towered airport.

Byron area traffic, Cessna 2 5 Echo Sierra is on the 45, inbound for right traffic runway 3 0, Byron

At Byron airport, getting ready for a takeoff followed by a landing. It is a non-towered airport.

Byron area traffic, Cessna 2 5 Echo Sierra is taking runway 3 0 for right closed traffic

Ready for a takeoff from Byron, heading to Livermore and on the way flying midfield over the runway. It is a non-towered airport.

Byron traffic, Cessna 2 5 Echo Sierra is taking runway 3 0 for an overhead 2 7 to Livermore

Flying over midfield over Byron airport. It is a non-towered airport.

Byron area traffic, Cessna 2 5 Echo Sierra is crossing midfield at 1200

Approaching New Jerusalem airport to check the runway, traffic pattern and wind direction. It is a non-towered airport with nobody around at the moment.

New Jerusalem traffic, Cessna 2 5 Echo Sierra is about 3 miles to the northwest inbound for an overflight for wind check

After circling the runway in a left traffic pattern, we announce our location.

Cessna 2 5 Echo Sierra is left crosswind to runway 3 0 New J

Lesson 1 – part 2

Today we flew over the Sacramento delta just north of Byron. Srinath got to do slow flying, engine out scenario, donned the goggles for instrument work, did a couple of takeoffs and landings with full stops as well as fly over midfield at Byron airport before returning to Livermore. For the engine out scenario, he spotted a dirt track and we came down to within 100′ simulating a landing before climbing back up. Byron airport is used for parachute jumping but since there was nobody there today we were able to fly midfield.

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Staying Alive in the Plane with SOPs

Attended an FAA Safety seminar at the San Carlos Flight Center, presented by Jason Miller of the finer points. Jason has been evangelizing safety standards for GA pilots since the accident rates in this community is almost 500x the accident rate of commercial airline pilots. He credits the success to the rigorous use of standard operating procedures (SOP) by commercial airline pilots. Some learnings from the seminar:

  • Review Part 91 accident reports and codify learnings into an SOP. GA community does not have a standardized way to disseminate the learnings across the community unlike commercial airlines.
  • Do a “final walk around” after all the passengers are buckled up and before starting the engine, as a redundant check against the preflight inspection. It is possible that during the preflight inspection the state of the aircraft may have been disturbed and the final walk around guards against that. On my very first demo flight, I failed to close the oil tank door on the cowling after checking the oil level. We didn’t notice it until after starting the engine and we were ready to taxi out of the hangar.
  • Abort takeoff if 70% of the rotation speed (Vr) has not been reached by the time you reach midpoint on the runway. While landing, if all the wheels haven’t touched down by the time you reach midpoint on the runway, immediately initiate a go-around. These will help eliminate preventable accidents.
  • Distinguish between a “do” list and a “check” list. It is OK to run a “do” list when you are on the ground and have no other distractions. You have the freedom to read off items on the “do” list and execute them. While in the air, perform a “flow” list followed by “check” list. The idea is to mentally define a visual flow over the dashboard and scan them. Then scan the “check” list to ensure everything was covered.
  • “Stay ahead of the aircraft”. Have a game plan for each stage of your flight. Run through the actions as you hit each stage of the flight and free up time to focus on flying the plane up to the next stage. Planning the actions after hitting the stage will leave less “downtime” to fly the plane and increase anxiety.
  • Pre-takeoff briefing. Have a game plan before you get to takeoff for the flight. Strike up an agreement with your CFI or co-pilot on emergency preparedness, what you will accomplish on this flight, route, roles and responsibilities etc.

Lesson 1

It was a hot day. As we left home around 5:30pm for our first lesson on June 9, 2014 at 6pm, the temperature reading on the car dashboard indicated exactly 100 degrees. We had spent the previous weekend at a scouting camporee at Rancho Los Mochos and the temperatures were scorching hot and dry between 95 and 103 degrees. Comparatively today was cooler. When I called Steve in the morning to schedule this lesson at 5:30pm, he suggested we meet at 6pm instead because it was to be a hot day. He wasn’t sure if we’d be able to make it in the cockpit long enough in the heat for both Srinath and my lesson today. As we were driving, we checked the METAR and remarked that the hot day with low pressure would lower engine performance due to higher density altitude.

This was the first time we used our own access to enter the airport grounds and I was going to try and get into the hangar before Steve showed up so that I could attach the GoPro camera on the ceiling and position at the proper angle. But Steve beat us to the hangar. The ceiling turned out to be not so smooth and I couldn’t attach the GoPro (yet again). Srinath would have to handhold the camera.

I asked Srinath to run the preflight inspection this time because I had done it the last time. The oil dipstick reading wasn’t very clear. I thought the reading was between 3 and 4 quarts whereas Srinath and Steve both thought it was between 4 and 5 quarts. Srinath let me fly first because he had taken off from Livermore on our last flight. By 6:45pm we were strapped in and ready to start the engines. It was sweltering hot in the cockpit and Steve reminded us that pretty soon we would turn on the air conditioning (aka propellers). I completed the other checklists before starting the engine. Steve let me talk to ATC for clearance – Livermore Ground, Cessna 2 5 Echo Sierra at Northeast hangar, request taxi for takeoff with Lima. We were finally lined up and as I gave it full throttle I got the first of many reminders to give it right rudder. The plane snaked on the runway and we took off. Due to the high density altitude, the plane needed 1300′ to reach rotation speed instead of the customary 700′. After a shallow turn crosswind and a shallow turn downwind, we were headed east towards Byron. Steve remarked that it was still 95 degrees outside.

ATC told us that there was an aircraft at 2400’ at 11 o’clock to us. We scanned the skies and could see it. We were climbing and were roughly at 2000’. A few minutes later ATC told us there was an aircraft at 12 o’clock to us at 1800’ which I was able to see executing a descending bank. Again a few minutes later ATC told us there was an aircraft at 6 o’clock to us which I’m not sure how we would ever be able to spot. As we were heading to the practice area, Steve noticed that I was making very shallow turns. To allay my fears me showed what a steeper turn looked like. The combination of the steep bank combined with a loss of altitude got me excited (a little dizzy). After leveling out, I was back at the controls and climbing to 3000’. Steve pulled back the throttle, dropped flaps and trimmed the aircraft to just above stall speed. The stall horns were continuously sounding (even though the airspeed indicator was only at the bottom of the green not the white). I flew the aircraft maintaining airspeed by controlling pitch and executed a 180 turn keeping an eye on the turn and bank indicator to not exceed the “notches” while banking.

This is when Steve noticed that the oil temperature was rising quickly. We continued the slow flight and soon the oil temperature was at max. We increased throttle, pulled back the flaps slowly and dropped the nose to increase airspeed thus cooling the engine. After trimming for a roughly 100 KIAS, we cruised around while the plane was slowly losing altitude. During this time Steve reminded us about how to plan for emergency landings. The oil temperature needle was visibly but slowly retreating into the green until we were down to just under 1000’ now. Executed a slow climb and flew straight and level parallel to a canal, using a distant point as reference on the windshield to keep it straight, all the while keeping an eye on the oil temperature to ensure it wasn’t getting dangerously high.

Today’s lesson was Medium Turns, Straight and Level, Slow Flight and I logged 1.2 hours. Cooling an overheating engine by increasing airspeed was a nice bonus. Perhaps I should have taken a second reading on the oil during preflight and used a tissue to wipe the dipstick clean before taking the reading to improve accuracy. Perhaps I should have suggested that we add more oil given it was going to be a hot day (and more oil will absorb more heat). An over heated engine runs the risk of either failing or catching fire, neither of which would have been welcome occurences on my first official lesson.

Still learning to give right rudder pressure but I started getting a visual feel for when the plane starts to yaw to the left due to P-factor. Still learning to keep one hand on the throttle at all times as the other hand gently holds the yoke. Back at the hangar around 8:15pm we debriefed on the lesson before calling it a night. We left the oil door open on the top of the cowling  and by now the outside temperatures had cooled down considerably.