Saturday, November 18, 2006
Blogs I read
So there is no flying after work. Because of the weather there may be no flying on the weekend.
But ground school has started (more on that later). And I read the blogs of others who are flying.
The first blog I found was Cockpit Conversation. I was googling for some information, found her blog, started reading, and went to bed at 4am. Not only is she is an excellent writer, she writes about diverse experiences, cultural encounters, and the technical aspects of flying. Very discreet of her Real Person, she writes of her experiences, not of herself. Like Pavlov's dog, I check her blog every day, and she rewards her readers pretty much each day. It was because of her blog that I decided to write of my experience in getting my own ticket. So blame it all on her, or give her the credit.
Blogs are inter-linked, so once I was hooked on this form of typographical voyeurism, I chased the links until I settled into a routine.
Sulako is a FO flying charter jets, based on Toronto. His experiences are about flying, technology, some cultural experiences, and a smattering of stories of his early days as a commercial pilot. Since he flies jets he can cover a great deal of geography in a short period of time, which gives rise to diverse and interesting stories. He also has one babe of a girlfriend, Lisa, who he wants to marry while dressed as a furry mammal (any woman who is willing to tolerate that idea is a keeper).
Sam, who blogs at Flight Level 250 (25,000 feet ASL) is a commercial pilot hailing from Washington State. More stories from a different geography. That he is a US-based pilot adds another dimension to my reading. He's at a smaller airline, so the flying involves much more up&down, which adds to the variety of the stories.
Land and Hold Short is a blog by another Ottawa-area pilot. Not a daily poster, he does share a number of stories about flying in the Ottawa area, and Ontario in general. Good fix for me, since he does discuss topics which are applicable to me (weather, local airports, Canadian aviation, and so forth).
Krista, another Pilot-in-Training, tells of her stories as she is working her way through the initial stages of getting her ticket. A very well-organized writer, and frequent poster. What she writes about is what I am going through.
Finally, I do read a good number of other blogs from time to time -- too many to mention here. Often, I'll go through the reader's comments on another's blog, see that a commentor's name is a hyperlink, and click on it to start an expedition down link-chasing alley (a sure way to consume a few hours).
Saturday, November 04, 2006
Set Rant On
Of course, the majority of the uninformed I-must-be-seen-to be-a leader-and-say-intelligent-things corps are politicians - who have some amazing networking skills but otherwise are generally accepted to not be the sharpest knives in the drawer, not be aviation experts, or any more trustworthy than used car salesmen (with apologies to the used car salesmen of the world).
It seems that virtually anything can be proposed, and considered, as long as you tag it with the threat of terrorism. One wonders if these guys check under their beds for terrorists before going to sleep at night.
When I was in a software sales job in February 1993, one of my hot prospects went cold, because his offices were way up high in the WTC, and terrorists exploded a bomb in the parking garage, carried into the building using a panel truck. Well, if they want to ban a light aircraft which can carry perhaps 300 pounds of explosives (if you have no passenger), why not ban panel trucks? Or cube trucks? Or gasoline tanker trucks?
Or even mini-vans, which can carry a thousand pounds of a nasty substance, and are not tracked on radar? Whoops. Banning mini-vans from our cities would upset the soccer moms, and there are too many of them for a politican to risk upsetting, even if the proposal would make more sense.
Similarly, if the politicians wanted to improve the air security around Washington DC then they would close National Airport. But it would take them much longer to get to Dulles or BWI to fly home on Thursday, so there is no chance of that happenning. A politican will sacrifice your cow, but his are all sacred.
I never wrote my rant. Didn't need to. Read the following, from the AOPA website.
ENOUGH IS ENOUGH!!BY PHIL BOYER
Mayor Daley's latest rants have sent me over the edge. He used the accident in New York to once again demand a no-fly zone over downtown Chicago for general aviation aircraft.
It was expected, of course. He has an irrational hatred for piston-engine aircraft, as evidenced by his illogical tirade this week. "They should not jeopardize, through intentionally or by accident, a single- or two-engine plane flying over our city [sic]," the Meigs Field destroyer exploded at a press conference. (I don't think he was including Boeing 737s, 757s, and 767s in his list of twin-engine aircraft.) "Remember: a single- or two-engine plane can kill as many people as possible if they want to."
And if it were just Daley, I'd ignore his ravings, just as the folks in the federal government in charge of security and airspace do.
But it's not just him. Other politicians (with the spectacular and notable exception of New York City Mayor Michael Bloomberg) and self-appointed "experts" are jumping on the tragic accident — repeat, accident — in New York to sound off again about the "danger" of light aircraft, and how they must be regulated, restricted, banned.
OK, for all of those ranting about "threats" from GA aircraft, we'll believe that you're really serious about controlling "threats" when you call for:
- Banning all vans within cities. A small panel van was used in the first World Trade Center attack. The bomb, which weighed 1,500 pounds, killed six and injured 1,042.
- Banning all box trucks from cities. Timothy McVeigh's rented Ryder truck carried a 5,000-pound bomb that killed 168 in Oklahoma City.
- Banning all semi-trailer trucks. They can carry bombs weighing more than 50,000 pounds.
- Banning newspapers on subways. That's how the terrorists hid packages of sarin nerve gas in the Tokyo subway system. They killed 12.
- Banning backpacks on all buses and subways. That's how the terrorists got the bombs into the London subway system. They killed 52.
- Banning all cell phones on trains. That's how they detonated the bombs in backpacks placed on commuter trains in Madrid. They killed 191.
- Banning all small pleasure boats on public waterways. That's how terrorists attacked the USS Cole, killing 17.
- Banning all heavy or bulky clothing in all public places. That's how suicide bombers hide their murderous charges. Thousands killed.
Number of people killed by a terrorist attack using a GA aircraft? Zero.
Number of people injured by a terrorist attack using a GA aircraft? Zero.
Property damage from a terrorist attack using a GA aircraft? None.
So Mr. Mayor (and Mr. Governor, Ms. Senator, Mr. Congressman, and Mr. "Expert"), if you're truly serious about "protecting" the public, advocate all of the bans I've listed above. Using the "logic" you apply to general aviation aircraft, you're forced to conclude that newspapers, winter coats, cell phones, backpacks, trucks, and boats all pose much greater risks to the public.
So be consistent in your logic. If you are dead set on restricting a personal transportation system that carries more passengers than any single airline, reaches more American cities than all the airlines combined, provides employment for 1.3 million American citizens and $160 billion in business "to protect the public," then restrict or control every other transportation system that the terrorists have demonstrated they can use to kill.
If you're not willing to be consistent, then we might think that you're pandering to uninformed public fears, posturing from the soapbox of demagoguery, screaming security for your own political ends.
Sunday, October 22, 2006
How to recover from a spiral dive
Yesterday's (Saturday) lesson was more slow flight, as will the next few. I'll post about the lesson itself separately. The new topic for this lesson was Spiral Dives.
In preparation, I read about spiral dives in both From the Ground Up, and in Transport Canada's Flight Training Manual. I was underwhelming by the explanations in both. So (since I'm blogging for me) I need to make notes about spiral dives. If I can explain it, I understand it.
A spiral dive is really quite simple, and this is why I was probably under-whelmed by the manuals. Entry is not as dramatic or as sudden as, for example, a spin. Recovery is simple. The only real drama is that, because speeds are high, there may be some interesting G-forces involved.
In a spiral dive the aircraft is flying "normally", meaning that the wings and control surfaces are all functioning, nothing is stalled, the aircraft is traveling pointy-end first, and so forth. The aircraft has a steep angle of bank, and is descending rapidly. The airplane is flying in a corkscrew pattern in rapid descent.
The issue is that an aircraft in a spiral dive, if left uncorrected or if corrected improperly, will very quickly overspeed, resulting in damage or destruction of the airplane (and occupants).
Because of the potential for airframe damage or destruction, Transport Canada states that it is not a permitted solo flying activity, and even when flying with an instructor it is the instructor who must put the aircraft into the spiral, and then transfer control to the student for recovery.
Recovery is simple:
- Recognize you are in a spiral dive.
- Close the throttle.
- Level the wings.
- While leveling the wings keep the nose down (it will want to rise due to the high airspeed).
- Once the wings are level, pull back on the stick/yoke. Expect to feel G-forces.
More details.
Recognizing you are in a spiral dive is the critical first step, and because of the risk of overspeed it must be done quickly. You know you are likely in a spiral dive when you are losing altitude, and airspeed is increasing. There is no need to detect the steep bank by referencing the Attitude Indicator (and it may be spinning/useless anyway).
Huh? (This was the first under-explained point in the manuals).
If you are going down (fast) then there are four possibilities:
- You're in a wings-level dive. Altitude is decreasing, and airspeed is increasing. But: Because the wings are level and the airspeed is increasing, the nose will want to come up, since a trimmed aerodynamically stable aircraft will want to fly in level flight at a constant speed, and will return to that attitude if left alone. So, left alone, the rate of descent, and the airspeed, will decrease as the aircraft levels and follows the trim.
- You're in a spin. Altitude is decreasing, but in a spin the airspeed isn't increasing (except due to the engine, but you're going to close the throttle).
- You're in a spiral dive. Altitude is decreasing, and the rate is increasing (you're going down faster and faster). Airspeed is also increasing and moving towards overspeed.
- There is one low-probability possibility.... The aircraft is in a wings-level dive, and being held there due to being badly out of trim (the trim is holding the aircraft in the dive). Or the control linkages have jammed. Worry about 1-3 first.
Close the throttle. In a spiral dive or a spin, closing the throttle is the first step in the recovery, so closing the throttle is done automatically (it also does not hurt the recovery options if you are in a wings-level dive, so there is no downside). As soon as there is a realization that you're rapidly descending, close the throttle, even if you are not sure whether you are in a spin or a spiral dive. Closing the throttle reduces the risk of airframe overspeed and engine overspeed.
Level the wings. Be aggressive. A spiral dive must be corrected quickly, so this is not the time for a lazy roll. Even with an excessive forward speed, rolling the aircraft level will not over-stress the airframe. Full airleron deflection is unwise (if faster than Vno), but fortunately it is also not necessary. Coordination using the rudder produces a roll which is both faster, and with no yaw (which means minimized airframe stress).
During the roll keep the nose down using forward stick/yoke. Because of the high airspeed the nose will want to pitch up as the wings level. Keep the nose down. The aircraft is at high speed, and rolling. If the nose is allowed to pitch up then the aircraft will both be pitching up and rolling, and at high airspeed the dual-axis translation results in higher airframe stress.
Pitch up (gently) to a climb attitude. My instruction has been to always return to a best-rate-of-climb attitude after any rapid descent (stall, spin, spiral). The thinking is that you know you have just lost significant altitude, and you may be at a dangerously low altitude. Rather than level off and then start thinking (and your first conclusion may well be "crap, look at those trees right in front of me, I need to get higher now!"), it is a better strategy to recover to a climbing attitude, trade the high airspeed for a rapid increase in altitude, and then apply power as airspeed decreases towards best rate of climb. Once stable in the climb, then there is time to think about other factors (heading, cloud base, etc.). It was pointed out to me that during the flight test it is important to listen to the examiner carefully, and make it clear what the recovery attitude will be. If the examiner insists on level flight, give him/her level flight, so recovery to a climb is not assessed as an error. Or pre-flight clarify that recovery will be to a climb.
What does not work (and what kills pilots): Because the aircraft is descending and in coordinated flight, the natural reaction from a pilot is to pitch up (pull back on the stick/yoke). However, because the aircraft is in a steep bank the effect of the elevator is to tighten the turn, not pitch-up the nose. The risk is that the pilot will panic and pull-back the elevators even harder, possibly damaging the control surfaces... but most certainly not correcting the rapid altitude loss. If no other action is taken the aircraft will auger-in with the the stick/yoke pulled back to the stops and the pilot screaming "WTF is happening? Why won't she pull out?".
In normal flight, entering a spiral dive is inadvertent, never a normal flight maneuver. The typical entry methods are:
- Disorientation when flying in clouds, night, or IFR conditions, with a pilot that is not instrument-experienced. In fact, the normal outcome of a non-instrument pilot flying in instrument conditions is a spiral or (sometimes) a spin. Usually within seconds or minutes.
- Flying in a steep turn, but allowing the nose to drop. Once the nose drops it is near-impossible to recover using the elevator, and a spiral dive will result unless the wings are leveled. NEVER do a steep turn when in the circuit for landing, as there may not be enough altitude for recovery.
- Trying to enter a spin, but the the wings don't stall and a spiral dive results instead.
The critical step in the recovery is recognition that the aircraft is, in fact, in a spiral dive and not just flying in a steep turn, or in level but severe nose-down flight.
The critical action in recovery is first getting the wings level, not first trying to pitch up.
The critical factor in the timing is recover quickly, before the airframe or control surfaces are at risk of damage from overspeed. "Quickly" refers to reaction time, not slamming the control surfaces to the stops.
The DA20 Eclipse can withstand 4.4G - that's a lot of force. Even then, the practical guideline on G forces is that they are limits when it is an expectation that the aircraft will be reused. If it looks like the aircraft is not going to be reused, there are no limits. Do what is required.
Note to self: Even after the reading, pre-flight instruction, recovering 10-15 spiral dives, and the post-flight debriefing, I still didn't understand all aspects of the maneuver. Which is why I tried to explain them on this blog. The benefit (to me) has been excellent. Lesson: Blog about other flight techniques and maneuvers, just to make sure I've learned them. You're welcome to come along for the ride.
Sunday, October 15, 2006
Clogged up and staying down
Drugs are allowing me to sleep OK, but I know I am not mentally sharp, and my eustachian tubes are plugged.
No flying this weekend. Too bad, because while the weather yesterday was unacceptable (low cloud base and rain), today is not too bad.
I'll embark on a whirlwind of house-cleaning and leaf-raking instead. I'd rather be flying.
Monday, October 09, 2006
Twice in a weekend slowly
I did the pre-flight checkout under long-distance supervision... instead of the instructor shadowing me at my left shoulder, I did it "alone". I suspected and expected, and confirmed later, that he was watching from the office. Excellent teaching teachnique.
The new checklists work well. I led the pre-flight discussion on the take-off schenarios... speeds to maintain, flap retraction, what to do and where to go if the engine dies.
Take-off was a mixture of good&bad. We had a cross-wind from 9 o'clock, I got too fast before we rotated, the left wing lifted and so we were rolling along on the nose-wheel and right main. I got the nose-wheel up, the left wing lowered, and we somehow got off the ground.
Tracking out from the runway was great. I managed the yaw 100%, and we ended up right of the runway. The crosswind drift took me north.
On Saturday I thought my my radio calls were mushy and lacked confidence. Sunday's radio calls were pretty good.
The flying time was all slow flight skills: entering slow flight, leaving slow flight, climbing turns, descending turns, with flaps, without flaps.
And stalls. One really has to work to make this airplane stall decisively. We stalled power-off, we stalled power-on. We stalled in climbing turns.
The "floating leaf" was fun. The quick explanation is that you reduce power to idle, then raise the nose until you are in a stall. Upon stalling you don't lower the nose and break the stall, but keep the stick hardback, keep the stick centred, and use the rudder to control the wing-drop and yaw. It feels like tap-dancing on the rudder pedals. It develops a light touch on the rudder, confidence in ability to control the airplane, and a sense of how to respond quickly to a changing attitude.
On my first try I lasted about 4-5 seconds (it seemed like a lot longer) before I failed to control some yaw, the left wing dropped, the nose dumped over and we entered a spin. Somehow, without analytic thinking, I centred the ailerons, pulled full opposite rudder, pitched down and stopped the spin before it was established, after about a quarter turn, then pulled nose up. In the midst of all this I applied engine power -- totally not required when you're already 80 degrees nose down and gravity is doing a wonderful job of providing more than enough acceleration.
The approach to the airport was simple, altitude control was constant in the approach and throughout the circuit. Much better than ballooning all over the sky a few lessons back.
The landing was OK... the wind pushed out my base leg and I was a little pear-shaped on the start of the final, but not extreme. The flare was my best yet -- we were straight and level about 4 feet off the runway. As the speed decreased the nose dropped faster than I raised the nose, and we made a somewhat fast three-point landing. We were going fast enough that Bendon took control and pulled the nose off the runway to show me the attitude for flying along in ground effect and shedding speed.
Taxi back (taxiing is getting routine), de-brief, pay the bill. I had nowhere to go and they had to wait for the C150 to return, so we pushed the Eclipse back into the hangar and closed out the day in idle chatter about flight in general.
Sunday, October 08, 2006
Lesson 4 - Slow flight
In the pre-flight we covered the theory of flying for range, flying for endurance, entry into and exit from slow flight, and took to the skies.
Pre-flighting was all mine. This instructor is good (or maybe they all do it). Before there was coaching, and this time he didn't say a word. I, on the otherhand, chatted my way through, telling him what I am looking at and what I am seeing. The silence is reassuring, and marks progress.
We have new checklists. Still compliant with the manufacturers' lists, but now slightly re-ordered to be more logical, and also with a few new entries. Early in the list there is a section where we ensure all of the non-flight controls move freely (cabin heat, etc) and I comment that there is no check to make sure the alternate air source is free. I check it anyway.
Startup, and taxi to the run-up area. When I look back at the earlier posts and read about taxiing like a drunken sailor I'm smiling, as my taxiing is much much better. Seat-time does that to you.
Today's take-off was smooth (see last post), I maintained rate of climb quite well, but I didn't counter-act the yaw from the climbing take-off power and so we ended up about 20 degrees left of the runway.
We covered entry into slow flight, turning, recovery from slow flight, flying clean, with take-off flaps and with landing flaps. We used the empirical method determining of determining best endurance speed (the Eclipse's manuals don't illustrate anything below 2400RPM, and under yesterday's conditions the best endurancespeed in this aircraft was about 1650RPM).
Turns without losing/gaining altitude are getting better. My trimming of the elevator was a bit ham-handed, and that was the biggest factor in my barely adequate altitude control.
Radio calls were OK, though clumsy from time to time.
But the weather was wonderful, the sunlight bright, the air quite clear (the brown smudge of smog in the distance was evident, but that barely affected looking down at the trees in their fall splendor).
We had some extra time and a partial fuel load, so the instructor demonstrated stall recovery and spin recovery. I really need to make a video of a spin recovery.
The circuit and setup for the landing went well. I flared a bit high and then didn't fight to keep the aircraft flying, so we landed well but it was a bit of a drop. I'll probably have 5-6-7 landings under my belt before we start circuits.
The bonus was following the lesson. After each lesson there is a de-briefing, which covers the core of today's exercises and takes 5-10 minutes. The next student was solo, and after he was dispatched, I had lots of time to discuss every phase of the flight with the instructor.
The weather is wonderful today, so I'm going to do a few hours of paperwork and yardwork, and then I have another lesson this afternoon.
Airports, airports, airports
Up at 4AM, then off to CYOW to put my wife on a plane. She sings with a Sweet Adelines chorus, and they're off the Las Vegas to sing in the international competition. Most amusing part of the trip was when it was about 20 minutes to flight, we were at the front of the line-up, and someone (who happened to be from the same chorus) arrives in a panic for the same 6am flight. Give credit to the Air Canada staff -- they didn't roll their eyes at the time-challenged pax, or fall on the floor laughing. Then again, it was probably the first such occurence of the day, and most certainly the last.
While waiting at the airport the sun had come up, there was now a bit of a breeze, and the fog blew down from the Ottawa river to the 417. What was an idlyllic morning drive into the airport had turned into pea soup for the latter part of the drive home.
Wake up daughter, eat breakfast, and then drive back to the airport to catch a flight for a two-week vacation with her bro in Calgary. The lines at Air Canada were much shorter this time, so we had a chance to sit in the sunshine and chat, before seeing her through to security.
And then, in mid-afternoon, it was off to CYRP for a flight lesson. More about that next posting.
The weather yesterday and today is wonderful... minimal wind, wonderful fall colours, and bright warm sunshine. I'm torn between doing yardwork, or to go book another lesson. Or to drive down to the gliding club and say hello to my friends (and maybe go on a glider flight).
Saturday, September 30, 2006
A really awful takeoff
Once again, paperwork and pre-flight went fine. On the checklists I have to just relax and let the checklist do the work.. stop thinking ahead and do the item we're doing (different checklists will revisit the same item, and I get ahead of myself).
My taxiing was quite good. I followed the lines, didn't cut any corners, and was nice and smooth throughout. Very little drunken sailor wandering. The post-flight feedback was to trust the rudder, and touch the brake only if I'm not swinging the way I want to -- don't touch the brakes as the first step. At least I don't ride the brakes.
The wind was somewhat variable, pretty much 90 degrees abeam the runway. The instructor asked me to make the call whether to use runway 10 or 28. The wind made it a coin flip, but the last few flights had landed on runway 10, so I decided to go with the flow and called runway 10.
About halfway down on the backtrack the wind swung 30 degrees to tailwind and decided to stay there, so I decided to switch, made the radio call, backtracked, and setup for the takeoff on 28. So far, quite good. The runway is less than 4000 feet long so it requires only one windsock... but sheesh, there are two taxiways, put up two windsocks!
Previous takeoffs have resulted in a lot of veering to the left on application of full power, so I was ready this time. Too ready, too much rudder. On the takeoff roll I zigged and zagged all over the place, finally dragged the nose off the blacktop and prayed we'd be airborne before we were sideways. Clearly - circuits are not for a few more lessons. Once we were off the ground I got the ship stable and pointy-end first.
The climbout was pretty good. I swung about 10 degrees left, rather than my usual 30. But I maintained best rate of climb reasonably well on a day where we were bouncing through the thermals.
Todays lesson was turning, so we went through gentle/15, medium/30 and steep/45 turns. By the end of the lesson I was making the turns and losing (or gaining) less than 100 feet. And one turn I remained spot-on altitude. My gentle turns were fine, I tended to be cautious on the medium turns (perhaps 25 degrees from time to time), and the instructor said my steep turns were sometimes closer to 60 degrees rather than 45 -- I guess I wasn't shy on those. Flying the Eclipse one needs to add power for the steep turns only. Memo to self: Keep the eyes outside, straight ahead, and maintain the bank angle and the pitch (airspeed).
We did climbing and descending turns, (slow-speed) canyon turns, and collision avoidance turns. And we reviewed climbs and descents, and of course there was lots of practice of straight&level flight while we reviewed and planned. As usual, I did all the flying, except for the demonstrations.
The collision avoidance turn was something special.. since there was no imminent collision we dropped the speed to 100 kts to reduce stress on the airframe, and did a good lookout. When it is time to turn.... slam the power to idle, right rudder to the floorboards and stick to the right, a hard 60 degree bank turn, about 45 degrees through the turn pull back on the elevators to pull you through the turn and apply full power.. and come out at a 90 degree turn with minimal altitude loss. And don't be suprised if the stall warning horn goes off. It is a pretty exciting 2 seconds. First time I banged my way through it. The second time I was much more smooth, and came out having lost about 50 feet and was pretty much spot on a 90 degree rotation. So we did one more just to make sure. You know you've really slammed it through the avoidance technique when the Directional Gyro is spinning like a top when you're done. My wife had dinner-plate wide eyes when I described it to her when I got home. I hope to fly these in practice only.
Interesting observation: My turns at the start of the flight were mostly eye-out, but with a bit of instrument scanning to double-check. Then I was switched to correct technique, keeping the eyes out all the time. At the end of the flight, as we were resetting to our practice area after the collision avoidance turns, I was eyes-out, glancing the instruments from time to time just to find out where I was, and not to assist with the flying. My altitude stayed reasonable constant. It's coming.
We had one aircraft come scooting through the practice area unannounced, perhaps 500 feet below us and a half mile south. Everyone in the practice area was doing a good job announcing where they were and what altitudes they were working, and this guy zips through without a peep. S/he might have been on YOW's frequency, or NORDO, or monitoring and decided to keep quiet since they were a distance away. Or oblivious. I'm glad we were not doing stall and spin recovery (movements where there is a lot of altitude loss, in a short time).
And it got interesting on the approach into CYRP. We had four aircraft converging at once, as well as two for takeoff. We were coming from the north, a Katana from the southwest, one more from the northwest, and someone else wanted to land on runway 22 (the unpaved runway) and they were somewhere north of the airport but at a lower altitude, and wanting to fly through the left-hand circuit. We were first, so we flew over&back, ran the circuit, and led the parade. After the three of us got down, rwy 22 did their landing.
The wind was solid from the south now, and I did a decent job of aligning the runway and set up a crab of about 20 degrees to counter the wind. But I was wayyyyy high, and I wasn't sure I wanted to lose the crab and flare all at once when I hadn't managed a nice flare yet. So at about three hundred feet I just stated "no sense being a hero, you have control" and the instructor did the landing. Once we were stable on the ground the instructor handed control back to me and I finished up.
So where am I? Well, with no flying for 8 days I felt rusty in the seat.. the burn rate through my credit card hurts when you fly twice a week, but the frequent practice does prevent the rust. I did have a good chance to re-read the last few lessons and internalize the knowledge. And we put 1.5 more hours in my book, since we took the time to review everything (explicitly or implicitly) from the previous lessons (it is cheaper to take an extra half hour and review, than to book an extra 1 hour discrete lesson). I'm pretty ham-handed, but getting smoother and more "minimalist" in my control techniques.
This week will be a busy one at work, and the following week I am travelling, so (weather willing) I will book a lesson on a weeknight later this week. Probably 1.5 hours instead of 2 hours, due to the shorter days.
Tuesday, September 26, 2006
Things to improve on
It is amazing to watch a qualified pilot take the controls, and with economy of effort take the aircraft from my gyrations to smooth, level and coordinated flight. It must be amusing for an instructor to watch a student struggle to perform a skill which is, to them, as simple as walking. And to not cringe, asp or grab the stick.
My improvement list:
- When taxiing, don't go from here to there just because it is an open path. Always track the yellow taxi line. It happens to not matter now, but in the winter when there could be ice, or snowbanks, or at a different airport where there could be a higher sign at the edge of the taxiway, it could matter.
- Before leaving the run-up area and entering the taxiway, radio intentions ("will hold short of runway 28") so a landing aircraft does not get nervous that I might just go straight onto the runway (I'm at an uncontrolled airport).
- Think-through my take-off contingency planning. Do this while in the run-up area when we'll be taking off on runway 28 (and there is only 30 second of backtracking). For runway 10 we have to backtrack the length, so there is lots of time for discussion during the positioning. I learned to do this in a glider ("if the tow-rope breaks now then we will ...."), I'm getting to the point in my learning curve where I have the capacity to do this in a powered aircraft.
- When backtracking after landing, or making the turn at the end of the runway prior to takeoff, turn to the left for better visibility. I suppose that, if there is a meaningful crosswind, then you might turn to the right - I'll ask the instructor next lesson.
- When applying power for takeoff apply right rudder to counter the yaw from the propwash. I tend to drift to the left and takeoff from there. I need to track the centreline on the takeoff roll.
- On the takeoff climb, again, use the rudder. I tend to circle/fade to the left due to the uncontrolled yaw. Glance at the DG, since the nose blocks the external view.
- In a glider the rudder is used to control yaw when in a turn. In the DA20 the rudder is generally not used in a gentle or medium turn, as the aircraft is coordinated. But it is used to control yaw when required (usually power changes, or high rates/angles of climb at full power). I need to re-learn when to use it (and to not use the aerlirons when I should be using rudder).
- My altitude and directional control tends to be superior towards the end of a flight. Probably because I've settled in and am just flying the airplane using senses and peripheral vision, as opposed to watching the altimeter.
- Keep working on developing the sense of flying the aircraft from eyes-outside (perspective to the horizon) instead of instrument-watching. Do some instrument-glancing, but not watching. When I drive down the highway I don't stare at the speedometer to maintain speed, I have a sense of how fast I am going just by looking at the surroundings. In an airplane this will come, with time.
- Gentle movements on the stick. At all times, but especially when setting up for the landing.
So what is going well?
- Situational awareness, and staying ahead of the aircraft. The saying is that no aircraft should arrive at a point that your brain has not been to five minutes earlier. My anticipation has been good, although my mental loading has not yet been stress-tested so I've had the bandwidth to do the thinking.
- Eyes outside the airplane. My sky-scanning (for other aircraft) tends to be very good - good technique, good percentage of time with eyes outside.
- Radio work: It has been good to work the radio and fly at the same time. I've gotten most of the calls right (or, at least, close). I have to think-through the call before I make it as it does not come naturally yet, but that's a good practice anyway, to conserve air time.
- Paperwork, W+B, pre-flighting.
- Taxiing is coming along nicely. I wander a bit, and I have not taxied much in a cross-wind, but it is getting better (this aircraft has rudder and differential brakes to steer - the nosewheel is castered and non-directional).
- Straight-and-level flight continues to need work, but I see improvement. The directional control and yaw control is pretty good, though the altitude control is more corrective than managed. And I have not even tried to worry about managing the ground-track in a wind, I'm just correcting for the drift when I get too far from the road.
- Gauge and instrument monitoring is good. I scan frequently, and remember to set the DG to the compass from time to time. I'm not getting any comments from the instructor reminding me to do this (he probably wouldn't remind me at this stage anyway, just to prevent mental overload).
- Keeping my eyes outside the aircraft, and not gauge-watching. This is why post-it notes cover gauges during training. The sense at attitude and speed and bank angle comes with practice, and developing the "sense". More seat time is required, but it is coming along.
Friday, September 22, 2006
Up & Down
Because my employer expects me to actually work for a living, I'm not available during the business day. Because of my volunteer work with soccer, this week and all of this weekend are fully consumed, meaning a long gap between lessons. And so I asked the instructor if he could start a lesson at 7AM. No problem. I like this guy, and this school.
The phone rang at 6:10. Brendon was up, had checked the weather, and we might have a problem. At this time of the year there is a good chance of fog first thing in the morning, and there was patchy fog reported in the area. Everything looked good out the window, but Carp Airport is closer to the Ottawa River, so there may be local fog.
I arrived at 6:55. Today was climbs and descents (exercises 7&8).
The chalk-talk, paperwork and pre-flight took an hour. One would think that ascents and descents are simple - point the nose where you want to go, and go there. Like seemingly everything in flying, if you do it right it looks simple, but behind the simple is a lot of knowledge, technique and practice. Most of which I don't know - yet.
But you'll read all about that stuff in just about blog and student manual. I'm Canadian. I want to talk about the weather.
This morning was simply wonderful. The air was cool and crisp. No haze, no smog, bright sun, few clouds, no wind, no chop, no traffic. We bobbed up and down (we were practicing ascent&descent, remember?) and enjoyed the bright sun and the changing tree colours. It was a joyful day to be up and around.
Oh yeah - I did the landing too. Setup was good, the flare was a bit clumsy, but we got on the ground with only one minor bounce.