Tuesday, July 13, 2010

AirVenture 2010


AirVenture 2010—“Oshkosh”—is less than two weeks away. I will be there from Opening Day (Monday, 25 July), through the week, leaving Sunday (1 August). I’m leaving on Sunday because I learned the last time I was there for a full week that Sunday is really “get away day”, with not much going on and, if you do stay for it, a bit of a let down after a full week of aviation activities.) I will be doing Authors’ Corner, which is a chance to meet people and do book signings, on Monday from 1030 to 1130 and on Saturday from 1130 to 1230. I will also be giving a presentation on Thursday at 4 pm, just after the air show, in the Dake Pavilion, on the subject of aviation blogs. If you’re going to Oshkosh on any of those days, I hope you’ll stop by and introduce yourself as a blog follower. (The full title of my presentation is “Aviation Blogs: Another Way to Stay Connected.” Which it is. But the best way to stay connected is to just walk up and say “Hi”.)

Tuesday, June 22, 2010

World Cup

I don’t know why exactly, and it doesn’t really matter, but for the first time, it seems to me, there is a lot of interest in the US in the World Cup soccer competition. My own interest in it goes back to 1990 when it was held in Italy and ATA, then American Trans Air, had several contracts with European travel companies to take fans to and from Italy for the tournament. As a very junior L-1011 copilot, I ended up doing a lot of those trips, mostly to and from Ireland and England, because the more senior pilots generally preferred shorter, domestic trips and as the new guy, I got what was left. But it was fine with me—I loved the international flying and I loved being in Europe. You couldn’t help but get caught up in the enthusiasm and excitement, with every pub in England and Ireland full of fans watching on TV who couldn’t go, and every village square in northern Europe full of fans drinking hefeweisen, the traditional summer beer there, and watching the matches on big outdoor screens. Italy itself was decorated from boot top to toe with banners and billboards, the entire country decked out for the event. It was one of the best summers of flying for me at ATA, and one with many great memories.

One memory in particular stands out. I was flying with Dan Drummond, check airman and captain, and at this point in my career, something of a god (see “Step On It", April 2010). We were in Dublin, having dropped off a load of Irish fans in Palermo, and had set off, along with two flight attendants, on foot from our hotel to the nearest pub to watch Ireland play England, a rivalry that makes the Red Sox-Yankees rivalry look gentlemanly. We were anxious to get there, so we talked the two flight attendants into cutting across a pasture. They were dressed in I don’t really know what, but whatever it was left their feet and ankles exposed. We had long pants and socks on. (There is a reason I’m describing these details.) We got to the pub and managed to get a table with a view of the screen, got our beers, and before we had taken even a couple of sips, the flight attendants starting scratching and complaining about how much their feet and ankles itched and stung. And they wouldn’t stop, just more and more complaining, and they pretty quickly figured out that there had to have been something in that field we cut across, something not good, at which point most of the bitching and moaning became aimed at us. We asked locals what it might be and they said, “Oh, nettles, you know. Stinging nettles. Absolutely full of the stuff, up to the kneecaps.” It lasted for hours and I think the only reason they let us live is because we were their ride home.

There is another, happier memory of that match as well. Ireland scored the first goal, and as you can imagine, the place went crazy. The Irish take their kids to the pubs with them, at least they do on the weekends and for big events, it’s a very social, community place, and pretty much just let the kids run around having their own kind of fun. In the midst of this craziness, I saw a little kid, 3 or 4 years old, running to his dad to join in the celebration. Someone else, an uncle maybe, caught him as he ran by, picked him up, and flung him, some 10 or 12 feet, to his dad. The story does have a happy ending, the dad catching the kid and the kid screaming with delight.

Soccer is now a very big sport in the US, of course, with “soccer moms” almost as common a phrase as “golf widow.” But that is a fairly recent phenomenon. My generation, the Baby Boomer generation, generally didn’t know anything about soccer, didn’t even know what season it was played in, but it didn’t matter because we already had a year’s worth of sports, baseball, football, and basketball. As an army brat living in Germany in the late ‘50s’ though, we were introduced to soccer at school. I’m sure it was part of the Army’s continuing effort to improve German-American relations, an uphill struggle, and not just because this was only 10 years after the war, but also because we lived almost completely separate lives, with American living quarters built just for military families, US schools, US sports, US snack bars and movies and bowling alleys and so on. And it is still pretty much that way. If you are US military and you want to get to know the locals and their culture, you have to make an effort. You can spend three years in Germany and never leave America if you want to. So the soccer program was part of the effort to get us kids familiar with the national sport of Germany.

We were taught the basics of soccer, positions, rules, simple plays, and played some, not well of course, but it was all great fun because we were 10 years old and we were outdoors. But it didn’t really catch on with us. When the weather was warm we would always play either baseball or football, not soccer. Didn’t even think about it. And when my brothers and I got back to the States, no one had even heard of soccer. And I’m still not a big fan. Which doesn’t mean I don’t think it’s a legitimately exciting sport, it just means it’s a sport I don’t follow and don’t relate to much.

So why is it now so popular? I suspect it has to do with a generation of kids growing up not with soccer as a side sport, or an afterthought, but as a primary sport, the sport they play when the weather is warm. And that’s fine. For me, though, the part of soccer I miss is sitting outdoors with a hefeweisen watching it with a bunch of other fans on the big screen, and most of all, I miss being the guy who flew the airplane that got them there.

Thursday, June 10, 2010

Well Done


1LT D (soon to be CPT D), arriving stateside, Pope Air Base, Ft. Bragg, NC.(For more on Lt. D, refer back to the post titled “Lt. D”, February 2010.)

I’ve flown in and out of Pope many times. It’s great to see it from another point of view.

To Lt. D and all the members of his platoon, well done and welcome home.

Thursday, April 8, 2010

Step On It




A recent accident here in the San Francisco Bay Area has me thinking about engine failures for multiengine aircraft. The accident occurred on February 17th (2010) on takeoff from Palo Alto airport. All three occupants were killed, all senior executives of the high performance electric powered Tesla sports car company, enroute to a company facility in southern California. The aircraft was a normally aspirated Cessna 310R, and the pilot was a very experienced general aviation pilot with a reputation for good judgment and proficiency.

The aircraft took off on runway 31 in conditions of very limited visibility—heavy fog—reached about 50 feet in altitude and, instead of continuing to climb straight ahead to 400 feet followed by a turn to 060, the standard instrument departure for this runway which puts the aircraft out over the South Bay, it drifted to the left, clipping a high voltage electrical tower with one wing, crashing, presumably completely out of control, into a nearby neighborhood. Fortunately, no one on the ground was hurt.

No one likes to second guess pilots following tragic accidents, and I won’t. I didn’t help, I’m sure, that the Palo Alto airport is only 2440 feet long; it didn’t help at all, I know, that the visibility was so restricted. Nonetheless, not just this pilot, but many pilots have operated safely out of this airport, in conditions like this, for a long time. But something went wrong this time.

The NTSB is still studying this accident and it will probably be several more months before anything official is released. But everything points to an engine failure at takeoff, followed by a failure to maintain directional control. If the pilot had been able to continue straight ahead, even if he couldn’t gain altitude, the area directly ahead was free of obstacles for several miles, versus the one mile or so to the tower and neighborhood. The problem is, maintaining directional control directly after takeoff at a very slow airspeed, with no outside visual references, is an extraordinarily hard thing to do. This wasn’t a bad pilot; this was a pilot who got caught by a worst case scenario of events.

So the accident got me thinking about engine failures in general, both in general aviation aircraft (I used to do quite a bit of multiengine instruction) and, of course, in corporate and airline equipment, V1 cut after V1 cut. Practice, and being ready—on every single takeoff—for an engine failure are key. But something that I didn’t learned until I got into jet training, that may or may not be common in general aviation training—I know I didn’t teach it in my multiengine instruction—may be helpful here.

The most common phrase you hear in multiengine training is, “Dead foot, dead engine,” and that is certainly a good rule to help in identifying the failed engine. But it assumes you already have things pretty much under control. A lot of things have to happen, and happen right, before you can get to “Dead foot, dead engine”; specifically, it doesn’t tell you which rudder pedal to push on.

I remember giving a pilot new to international operations training in MNPS—Minimum Navigational Performance Standards, the document that covers North Atlantic track operations between North America and Europe. I was, in turn, being observed by another captain and check airmen, Dan Drummond, a very experienced and capable pilot who did some of my own MNPS training when I started at ATA. Dan and I became good friends over the years, and were very respectful of each other’s ability, but Dan took his job seriously, and didn’t hesitate to critique my performance if he felt it necessary. On this particular occasion, he felt I was perhaps wasting some valuable instruction time enroute after I had decided the poor guy needed a little break from all the questions and “what ifs.” So Dan said, “Look, let’s talk about what we would do if we had an engine failure right here, right now.” So the copilot starting thinking, and wasn’t quite sure where the question was going, was it about identifying and shutting down an engine enroute, or notifying ATC on HF, or other aircraft in the vicinity on VHF air-to-air, or is this about drift down altitudes and diversions off the tracks, he just didn’t know where to start, and understandably: if that were to happen, it is a little hard to know what to do first, which is why Dan was posing the question. After several tries, a little mixed up, Dan asked me, and I don’t remember exactly what I said, but something like, “Well, the first priority is aircraft control, then a turn off track and a declaration of emergency to other aircraft on the track, then the engine failure checklist.” Dan said, “Right, but what does aircraft control mean? It’s on the autopilot. It’s under control isn’t it?” I said, “Of sorts, but the autopilot has no rudder control at cruise, so it’s going to try to do it all with aileron.” And Dan said, “Exactly. So the first thing we’re going to do, the very first thing, is we are going to put some rudder in.”

And that is the case in every engine failure involving multiengine aircraft (except for centerline thrust aircraft like the Cessna Skymaster), regardless of phase of flight or flight conditions. The problem is, when an engine fails, the aircraft doesn't just yaw, it also rolls. The natural reaction, ingrained from day one of flight training, straight and level flight, is to correct the roll with aileron, just like the autopilot would. And that reaction is going to happen every single time, there is just no way to avoid it. Then the second reaction is going to be, “No, not aileron, I need rudder.” But which one? I sure don’t want to make the situation worse and push on wrong rudder. Again, how do we get to “Dead foot, dead engine”?

The long way to figure it out is to think it through: I have lost an engine, I don’t know which one yet, but the aircraft wants to roll to the right and I am countering that by rolling left; what I really want is not a roll to the left but a yaw to the left: left rudder. What’s the short way to know which rudder to step? Remember a very simple rule: “Step on the low side.” (The low side of the control yoke, that is.) The aircraft wants to roll right. You counter by rolling left. That puts the control yoke down to the left. “Step on the low side” tells you to use left rudder instead.

What happens when you do that? The first thing that happens is that the rudder is much more powerful in controlling the yaw caused by the operating engine than the aileron is. In fact, even at a very slow airspeed and at full power on one side and wind milling on the other, the rudder is powerful enough to control the yaw completely, resulting in straight flight (as slow as VMC, minimum control speed). Which means the aileron is no longer needed and the aircraft will now roll into the operating engine. Instinctively you take the aileron input out to return to level flight, and when the control yoke is back to level, there will no longer be a low side, and you will know that you have the correct amount of rudder for those conditions—for that airspeed and that amount of asymmetrical power. Not enough rudder, one side will still be low, step on it a little more to get the yoke level. Too much, and the other side will be low, meaning, step on that side. (Actually, it means letting up a little on the rudder you are pushing, but since the two are connected that is the same as pushing on the low side.) The secret is to keep the yoke level, and the trick to doing that is to apply rudder to the side that is low. (Actually, up to five degrees of bank into the operating engine is allowed on check rides, and a little bit of bank is beneficial. But only a little bit—anything beyond five degrees adds drag.)

The only tricky part here is equating releasing pressure on the high side as being the same as adding pressure—stepping on it—on the low side. Going through a typical engine out scenario may help explain and clarify that. Any engine out scenario will do, the procedure is always the same, but let’s take the typical training scenario, an engine failure after takeoff. You have done everything right so far, acting instinctively to counter the roll, you saw which side of the control yoke was low, you “stepped on that side,” on that rudder, taking the aileron input out as you did, until the yoke was level. You are now flying straight but are probably barely climbing, because you still have the gear extended and haven’t secured the dead engine and feathered it’s prop, so you raise the gear and (this is where “Dead foot, dead engine” comes into play), you slowly retard the throttle on the inoperative engine, the dead engine, you pull the prop control back to feather, and you pull the mixture back to cut off for that engine. As you slowly start to climb again, your focus is 100% on wings level flight and rate of climb—gaining altitude. If you had airspeed above best single engine rate of climb speed (Vyse), it has been traded off for climb. If you are below Vyse, you need to accelerate to that speed but only if you can do so without descending. In every case you are nursing the aircraft along on one engine at full power, full or nearly full rudder against the yaw and, once cleaned up and established at Vyse, you are adjusting pitch ever so slightly to maintain that speed and climb at the maximum rate achievable. And let’s say you do all that, and finally you get to a safe level off altitude where you can start to accelerate to a single engine cruise speed, perhaps even reduce the power a little from full throttle, try to sort things out and consider your return. As you slowly pitch over and accelerate, the aircraft wants to roll again: the increased airspeed makes the rudder more effective, the extra rudder effectiveness causes the aircraft to yaw which causes it to roll and you have again, instinctively, countered that with opposite aileron. The result is that as you accelerate, one side of the yoke starts to drop again. Again, step on the low side. But you aren’t actually stepping on the low side, you’re already stepping, or holding rudder, on the other side, but you are now holding too much. You need to release some of that pressure; still, if both feet are on the pedals, the foot on the low side will be the one going forward, and the one on the high side will be coming back.

The same thing happens when you reduce power. With less asymmetric power, less rudder is needed and pressure should be released. Anytime there is a change in power or airspeed, the amount of rudder required will change. But the rule is always the same: If the control yoke is not level, the foot on the low side should be going forward—“stepping on it”—and the foot on the high side should be coming back.

There is a useful corollary to this rule, and that is the “Step on the bug” rule. This rule assumes you have a heading bug on your directional gyro, and that it has been set to the desired heading, which would be runway heading on takeoff. If you think about it, what happens to the heading bug if you drift to one side or the other of that desired heading? It swings in the opposite direction. For example, if you are taking off on runway 31, and you slowly turn to the left, the compass rose will turn clockwise as you turn through 300, 290, 280, etc, taking the heading bug with it. If you are turning left and want to correct right, you want to turn to the right. Easy enough to think through right here, sitting at your desk in front of your computer, but what about right after takeoff into IMC? Look at the heading bug, then step on it: put enough rudder pressure on the side the bug is on to cause the bug to turn back to the center. When it is back in the center, on the desired heading, release enough pressure to keep it there.

I don’t know if these memory aids would have helped this pilot or not. I don’t even know for sure what went wrong. But I do hope they help you.

Monday, February 22, 2010

Lt. D


We received the picture you see here shortly after Christmas from old friends (no, they’re not old, they’re younger than I am, you know what I mean), in Massachusetts. The reason it arrived after Christmas is because they were busy buying, packing, and mailing Christmas packages to their son in Afghanistan and to each member of his platoon, most of whom are shown here, part of the 82nd Airborne Division.

There are a lot of parts to this story, which makes it a little difficult to organize, but it starts with, having flown many troops on their way to both Iraq and Afghanistan (my last flight for ATA started troops from McCord AB on their way to Afghanistan), this was the first soldier that I personally know who has been there. I flew lots of troops, and took great satisfaction in trying to give them the best experience going over possible, and, as with so many things in the military, there is a certain reassuring sameness to it all—the variety of people the Army attracts, the calm and courtesy they always showed, the ritual and traditions of the chain of command—and having grown up and been in the military myself, it was all very familiar, so I felt like I knew them, but I never actually knew any of those troops personally.

But I have known Lt D. (I will tell you later why I call him that) since he was “that high,” and while he didn’t ask my advice nor did he need it when he announced that he was going to apply to OCS and wanted to be an infantry platoon leader, he knew I completely supported that decision. And coming from the bluest of blue states, and from an academic area on top of that, that wasn’t something that he got a lot of then, where “Bush lied and people died” was taken as an undeniable truth. Lt. D not only got accepted into OCS, but got his commission (the two are not automatic—I don’t know what the attrition rate is, but the training is as tough as the Army can make it), and then went on to Ranger and Airborne training, elite training programs and the mark of a committed soldier. Having initially been assigned a staff position in Afghanistan, he pushed to have his own platoon, a much more demanding and, yes, probably also more dangerous assignment, and why did he do that? Because he wants to be a company commander, and you can’t command a company until you can prove that you can lead a platoon. He’s done well, and I am proud of what he has done, and I am also proud because I know there are many more Lt. D’s and many more platoons like this out there, and they represent all that is good about this country.

So why do I call him “Lt. D?” Partly because my guess is that is what he is often called, just as Forrest Gump called his platoon leader “Lt. Dan.” But I don’t know that. What I do know is that security is a big issue for our troops there, and their families here. I could give you his full name, and I could tell you exactly where he grew up in Massachusetts, and enemies could search the web, discover that, and threaten his family now, and him when he returns. A stretch maybe, not very likely, but why risk it? I actually had an awkward moment learning this on my last flight. I had taken my camera along with me because I wanted to take pictures on that last flight, and I took some inside the hangar at McCord where the troops were congregated prior to boarding. I knew you weren’t supposed to take any pictures anywhere on any base at any time, but I thought a couple of very discreet pictures would be okay. I took one of some special forces troops horsing around, and a few minutes later their company commander came over and very nicely asked me not to take any more pictures, “…due to the sensitive nature of our mission.” I was very embarrassed and said, “Sorry, yes of course, no more pictures.”

I just thought this was a great picture of Lt. D and his platoon, and I left it out where I saw it every time I walked by, and then it hit me, why not send a care package yourself? So the other day I called his mother to see what sort of things they wanted and where to send them, and she said they liked having basically any kind of snack or energy food that could be stuffed in pockets for long patrols, and extra socks. (It looks like cigars are a big hit, too.) So I enlisted one of my daughters, who has a Costco card, and we went to Costco and loaded up a basket with big boxes (the only kind they have there) of candy, beef jerky, energy bars, and athletic socks. (They don’t actually sell anything called “Combat Socks,” “Athletic” is as close as they come.) That package is on its way, and I have a tracking number and will let you know its progress. So far all the USPS will tell me is that it has been “Accepted.” I should hope so.