Wednesday, October 6, 2021

Lesson 23 - Learn your ABCs


 

Today was a review day. We hadn't focused on basic maneuvers (slow flight, stalls, turns, etc.) in a while, and my instructor likes to make sure I keep those skills sharp. Despite the blissfully calm winds and cloudless skies, ATC wasn't letting anyone do touch-and-goes at the airport today, so pattern work would have to wait anyway. My instructor and I reviewed slow flight and stall procedures in our pre-flight briefing, and I mentioned wanting to work on using ailerons and opposite rudder to align the plane with the runway as an exercise so I could get a better feel for that. Nothing extravagant, but certainly a good chance to continue to sharpen skills. As the lesson unfolded, there would be one skill I completely blanked on, and it's a skill you most decidedly want to be instinctive. 


Pre-flight inspection, run-up, etc., went pretty much by the numbers. I don't ever want to think that aspect is ever "routine," because familiarity breeds contempt, and I don't ever want to miss steps in any part of that process. That's why we have checklists against which to compare things. But I figured today was going to be a good day when I actually got the engine to start on the first try! (Seriously, that's happened like three times.) Set radios, get clearance, taxi to 17L, full throttle, pull back on the yoke, and get the bird in the air. Today's take-off was measures better than my last one. My entire attitude today was different from my last outing, and my ability to fly reflected that. 


I flew us to the practice area and set us up for some slow-flight exercises. From straight-and-level, reduce power to around 1700RPM, once the speed is below 110 knots (which is pretty much right away since cruising speed is around 95 knots), drop 10 degrees of flaps. Below 85 knots, drop to 20 degrees, then below 75 knots, drop to 30 degrees of flaps. In an ideal world, you do this without losing any altitude. That didn't happen my first time, I'm rather embarrassed to say I dropped 600' of altitude in my first try. Ugh! Climb back up and try again. Second try was oh, so much better. Got into slow flight, made left turns, right turns, even some controlled descents and tried to climb, though with 30 degrees of flaps in 180hp plane, you're not gonna climb much if at all. But that, too, was part of the lesson. 




Stalls were next, which is similar to slow flight. I was slow to adapt to my slowing airspeed and calling out flap applications as airspeed decreased, so I got flying really slow at a few points in time. It's really almost immediate from when you apply 10 degrees of flaps to when you follow up with 20, then 30 degrees as your airspeed slows that quickly in this exercise. I was hesitant and things didn't go as smoothly as I hoped. Still, recovery was pretty solid, so all in all, nothing to be too worried about. We'll keep practicing it. We then worked on rudder and aileron control to keep the plane aligned with the runway or other points. This went well, giving me a good feel for how the plane responds to control inputs for getting (and staying) aligned with runways.


Leaving the practice area, my instructor pulls the throttle to idle and says "your engine just died. What next?" Suffice to say had this been a real emergency, I'd probably not be here to write this. My brain completely froze and I forgot what to do. I knew scanning for a place to land and running checklists were in there somewhere, but I was losing altitude at 95 knots while I was trying to process what I was supposed to do. Um, oh, yeah... Best glide speed. I knew that was in there somewhere...




This is one of those skills that a pilot needs to learn. Period. Your life literally depends on it. That's not hyperbole. Your engine quits, you need to know how to safely land. It needs to be automatic. This is where your ABCs come in. (Aviators love acronyms, so it's fitting that this most basic one is for arguably the most important task.) A = Airspeed. Step one is to get to your best glide speed. Just do it. Pitch the nose up until you're at 68 knots (in the Cessna). B = Best place to land. As you're pitching for 68 knots, look out your left window (since you're sitting on the left) for a suitable place to safely land the plane. An open field, long stretch of empty gravel road (thankfully plentiful in rural Colorado) or similar flat place. If there's not one to your left, look ahead, then look right. Then run your checklists to figure out what may have caused your engine to fail. "Door to floor." The ignition switch is first, since it's closest to the door. Make sure it's on. Then progress to the right across the bottom edge of the controls. Make sure your master switch didn't get bumped. Turn on your fuel pump. Make sure your throttle and mixture are in all the way. Look down the center console to see if the fuel selector valve and shut-off valve are where they need to be. All of these steps (A, B, and C) need to happen very quickly, like within 30 seconds or less. In fact, once you've identified your landing spot, start flying the plane to it while running your checklists. If your landing spot is beside you, the longer you wait to turn towards it, the further behind you it gets and you may not make it back there. 


Once you've done all that, you can then look to see if you can get the engine started again, then contact the tower to let them know you're declaring an emergency. Set your squawk to 7700 (squawk is what ATC uses to identify you) to let them know you're in an emergency. If the engine won't start, just concentrate on setting the plane down safely at that point. Planes want to fly, even without power. A dead engine is certainly cause for concern and concentration, but not panic. At that point, your checklist runs "floor to door." If the engine won't start, shut off the fuel, pull the mixture to idle cutoff, turn off the electronics, kill the ignition, and unlatch the door. It won't open because you're flying at 68 knots and the wind will keep it closed, but unlatching greatly reduces the chances of it getting jammed when you land. If you've chosen your landing spot well, you should be able to glide to it. Landing speed on the Cessna is 65 knots, so if you're pitched for 68 knots, then (theoretically) landing with no engine will be similar to landing with the engine at idle anyway. You basically fly a power-less plane every time you touch down. You just have the advantage of power leading up to the point when you're finally over the runway. 


We talk about what to do in the event of an engine failure in our run-up briefing. We talk about it because it's that crucial. But talking about it is only part of the equation. Actually doing it has to be as routine as taking about it in your run-up briefing. Maybe my emergency procedure briefing needs to be improved to describe the specific steps I'm going to take, not just the generic "land the plane." How are you going to land the plane? Remember your ABCs. 


With that, we started back to the airport. Again ATC wasn't allowing touch-and-goes, so we just requested a full-stop landing. I flew the approach and landing, feeling rather comfortable every step of the way. I took us from 8800' down to 6800' (pattern altitude) as we flew towards the airport. Once in the pattern and the traffic in front of us had passed off my right wing, reduce power to 1700RPM and since I was already below 110 knots, drop 10 degrees of flaps. I continued my descent as we turned to the base leg, then turned onto the final leg, dropping 20 degrees of flaps and lining up with the runway. Since the winds were calm, there wasn't much pushing me left or right of the runway, so I could concentrate more on airspeed and altitude control on the landing. I flared a little to early, so I set us down on the runway with a bit of a "thud." Gotta work on that. It's just something you have to get used to. The tendency is to see the ground approaching and want to pull back. It's human nature. You're in a plane and the ground is approaching quickly. It's instinct, like putting your foot to the floor of a car when the person driving doesn't slow down as soon as you would. In a plane, if you pull back too quickly, then you float and land hard. If you do it too late, you land on the nose gear. It's just feel and timing. And that takes getting used to.



Lesson 59 - Zen Interrupted

I don't know that I really intended to have back-to-back solo flights, but--hey--I have the endorsement, I may as well enjoy it, right? ...