
Sneaking up behind me, are you? Here’s an infrared view you might need to heed: not the hotspots, but powerful the twin horizontal corkscrews of air current swirling off the wingtips of my jet. They’re wily, dangerous, and not to be trusted.
According to the Flight Safety Foundation, the vortices from a jet can have an internal rotation of up to 300 feet per second and often extend between 2 and 10 nautical miles behind a jet aircraft. The twin tornadoes–that’s literally what they are, horizontal but spinning powerfully–sink at a variable rate, between 300 and 500 feet per minute to an altitude between 500 and 900 feet below the aircraft’s flight path and can persist for three or more minutes depending on the meteorological conditions.

That’s the problem, but hardly the full situation. Add to this hazard the closely constrained flight path of jet traffic in terminal areas. For instance:
Approaching from the east, you’ll have a traffic stream from the west as well converging on the same runway complex. Not unusual as far as airports go–except that San Francisco International has less than the standard distance separating the two parallel runways. The FAA has waived the normal lateral separation, but you’d better keep that in mind nonetheless because that also means less than normal separation from the vortices of the aircraft next to you. Remember the outward spreading motion of those two tornadoes?
This guy could be your dance partner all the way down final–and if he’s next to you, you aren’t entitled to the separation you’d get if he were ahead of you. Mostly, ATC will “advise” you to “use caution” for the heavy on the west runway, workload and time permitting–but they don’t have to.
And time and workload may not permit any advanced warning, and adverse weather can shroud the entire scene anyway:
Look at the inset on the bottom right corner: Seattle (one of my favorite destination cities!) has three parallel runways grouped together, and you won’t be told which of the three runways you’re landing on until you turn base to final about three minutes from touchdown. Would it make sense or even be possible to keep you informed of the heavies on all three inbound tracks? Add to the mix the typically obscured Seattle visibility, plus the added workload of programming and validating the FMS sytem approach waypoints at the last second demanded by the late runway assignment and is there a possibility of situational awareness overload, on final approach: was that a heavy in front of us? Or on the outboard runway?

Bring that back to San Francisco, where the standard runway separation is “waived,” like in MSP and many other cities. Now you’ve got a “buddy” laterally whose wake turbulence is drifting outwardly–just as yours is–and just because he’s not a “heavy” doesn’t mean he can’t roll you.
The ICAO worldwide “recommendation” for separation between a “heavy” and a “medium” following aircraft (say, a 747 and a 737) is 5 NM (9.3 KM); between two heavies, 4 NM (7.4 KM). But the wild card not even mentioned in the separation rules is configuration and maneuvering: simply put, a “dirty” jet (flaps, gear) creates a nastier wake than a “clean” jet, and maneuvering distorts weight. That is, if I level off my 160,000 pound 737 with an addition one-half “G” force, I add to the effective weight another 40 tons of effect. And we’re a medium jet–imagine a heavy maneuvering dirty adding to his effective weight and wake.

That’s the science, now here comes the art. You know the reported winds at the field, but that’s a red herring: your encounter with wake turbulence won’t happen on the field. You need to be aware of the winds on approach, at your altitude. If the lateral wind at your altitude is blowing into the other jet’s wake, here’s what can happen: if the drift equals the outward spread momentum of the wake–and you have to figure the “dirty,” “maneuvering” wild cards mentioned above–the effect will either be to move the wake away more rapidly, or freeze it in place till it dissipates. Which is it?
You can’t see wake turbulence. You can’t be sure where it is, or know it’s strength based solely on the aircraft designation. And sooner or later, you’ll find yourself in it despite your best, most diligent precautions. What are you going to do, captain?

For a true jethead like me, the first answer is always speed–but not so fast (pun intended): you’re configured with restrictive maximum flap speeds. If you’re in a final configuration with 40 degrees of flaps, you’re limited to 162 knots max. But the second instinct is valid: power.

But power alone is only part of the answer: what you’re not doing is going down. Why not? Because we know the vorticies are sinking. If we remain level or climb, we’ll escape the effects. What are they?
The Flight Safety Foundation survey of hundreds of wake turbulence encounters reveals uncommanded roll in trailing aircraft of up to 45 degrees at altitudes below 1,000 above the ground. One thousand feet is another magic number at my airline: stabilized approach (on speed, on altitude, power set) is mandatory from 1,000 feet to touchdown. On glidepath–not above or below; not accelerating or decelerating, power set to flown speed and stable. And certainly wings level.
Which brings up the next problem of two major headaches you’ll instantly own. First, the right amount of counter-aileron, even if applied prudently, in many jets will bring up the wing spoilers to drop the low wing rapidly, inducing adverse drag, requiring more power.
Second, the option of climbing or even flying level is constrained by the published missed approach: protected airspace may be below you if you are above the missed approach altitude. And laterally, not only is there often parallel traffic, there’s also dangerous terrain you must always monitor and stay clear of:

If you encounter wake effects in a level portion of the approach segment, prior to the aircraft ahead descending, at least you know his vortices will descend eventually below you and in this case, you normally feel the “burble” which now cues you: if the winds are keeping his wake aligned with your flight path, on glidepath you’re likely to fly into the tornadoes again when you’re slow and configured with speed-restricting flaps. Now look at the “mileage separation:” still think distance alone is enough? Still committing to the glidepath?
All of that doesn’t even consider the added, inevitable spoiler in every approach: weather. There’s more than terrain and aircraft for you to avoid in a very constrained airspace.

There’s really only one good answer: up. And “up” may be a s simple as “no more down,” meaning a stopped descent or a slight climb to exit the effects. In any case, if you’re below 1,000 feet you’re no longer “stable” per the mandatory requirements. If you’re above 1,000 feet, you’ve just been cued that the mileage interval, given the meteorological conditions, nonetheless has left you vulnerable to the adverse effects of wake turbulence–and you’re not going to proceed.
Which means, in the immortal words of my old friend the Chief Pilot at my airline addressing my 1991 class of Captain’s “Charm School” (officially, “Captain’s Duties & Responsibilities”) as we sat rapt: you’re going to “get the hell out of town.” Amen.

Back in the cabin? Expect the usual complaints about the delay for the second approach, plus a regular dose of exaggerated “there I was” tales about their wake turbulence encounter. So, don’t tell them–if you’ve done your avoidance and even escape properly, they’ll never know you even had a problem, which is the ultimate goal anyway: detecting and avoiding the problem in the first place.
The end result is, what they don’t know won’t hurt them, because you won’t let it. And that’s kind of why you get the privilege of flying the jet in the first place, isn’t it?


































Again, auto traffic dropping off passengers approaches from the right, so passengers naturally stop at the first available space–and go to the closest security checkpoint. But there’s an identical security checkpoint on the other end of the terminal which is normally less crowded–use it!








Sure, there are some flimsy walls partitioning off this mess–and your mess–from the general public. And believe me, they ARE flimsy walls too–weight is fuel burn which is cost in flight. But shrewd aircraft designers rely on the ambient background noise of flight (you know: jet engines, 300 mile and an hour wind noise) to cover up your bodily noises on the can, much like the lame exhaust fan in a tiny apartment is intended as background noise so you can crank away without disgusting a cohabitant. Lesson for the wise: don’t do anything in an aircraft lav on the ground that you don’t want others to hear. Because they will, especially as they troop past on boarding, and they’ll give you that look when you step out.
Being confused with this:
But again, it’s as outdated as the prop job in the drawing above, never mind the natty dress and Pepsodent grins. Because besides the issue of today’s cramped lav (space is $, remember), there’s the detail of sanitation: it’s as clean as your average outhouse, and often smells like one. Because either you have the swirling tank of port-o-john water below, or on more modern jets, no water at all–just a non-stick coating with fragrant skid marks anyway:
So anyone who says they have joined “The Mile High Club” is either A) Lying, B) Disgusting, or C) Has lost the will to live. And here’s the dirt on option “C:” there is no supplemental oxygen in the lav.
In all probability, you’re meeting your maker like Elvis’s last public appearance: face down, pants down, toilet unflushed. Now that’s the stuff of legends, right?
At least you’ll be able to breathe no matter what demonstration of disgustingly poor judgment you’re finding necessary to pursue in the can.
What better to beat the blistering heat of a Jethroplex summer than a float in your own ce-ment pond? You bid the later-in-the-day flights and you’re senior enough to hold them. That means the morning run–helps you sit still for the 6 or 7 hours you’ll be in the air–and an early afternoon swim. Then, reality check waiting on the iPhone:
You knew that. LaGarbage today, tomorrow too–then LAX the next day. That’s your work week. Get ready.
That’s the current radar picture in the New York metro area. The stuff just north of Tom’s River will be a problem if it doesn’t move out to sea. You can tell there’s a front line between Jersey and NYC somewhere–just look at the temperature difference. Cold air slipping under warm air produces big boomers, and it doesn’t take much of that to disrupt the inbound flow to Kennedy, Newark and of course, LaGuardia. Shrug. Deal with it when you get there–but prepare for it before you take-off: more fuel.
Board 160 passengers. Preflight. Taxi out. Climb.
Radar watch is beginning to turn up signs of the frontal clash converging on the northeast. Super radar–good picture out beyond 300 miles, has it’s own GPS so it knows where all topographical features are and screens them out of the radar image. Good to be sure that what we’re seeing is nothing but weather.
Lunch? Dinner? Whatever–it’s the last food you’ll see today. Everything at LaGarbage will either be closed or out beyond security, which you don’t have time for: they’ll be clamoring to board 160 passengers outbound as soon as you get there. Speaking of which, within an hour of landing, we can get the current weather at LaGuardia and print it out:
The FMS begins its backward countdown of miles to go and upward count of vertical velocity required to satisfy the arrival restrictions. Cool?


Refiguring the approach is not a big deal. But it’s a bad sign: runway changes take time and lead to a huge backup on the ground at LaGuardia. Plus shifting winds mean unpredictable weather due to frontal passage. Alright, plan “B” is the runway 4 approach. Reprogram the FMSs, the courses and the nav radios.
More jets at the bottom of the stack are heading for Philly; we’re still sound fuel-wise. Patience.
The ugly blotches here are actually the towering cumulus we’re sinking into here:
Already have the crew strapped in, all passengers down. Actually, the bad weather is a relief in a way: everything slows down as radar separation is increased. Plus, the approach is a straight-in, precision approach rather than the hairpin visual approach that is officially called the “Expressway Visual:”
Lots more fun from a pilot standpoint, but definitely more hectic. Finally, the wide swing to finally. Configure. In the slot: altitude, airspeed, configuration, glide slope, localizer.
No time for relaxing–it all starts again in 50 minutes, outbound with another 160 passengers impatiently waiting to board. The inbound holding and the LaGarbage ground congestion has already set us behind schedule, and passengers have connections to make at DFW.





I couldn’t hear the exact back and forth between the steamed woman and the officers, but in the end, it seemed the officers weren’t the cause of her anger: she grabbed her boarding pass, shot a pointed glance back at her handcuffed partner—then boarded the flight.

Yeah, my ass. Sorry–been fooled before. Now, we deal with gut feel and radar. Forecasts? Farther out than a couple hours–pretty well useless. Keep flying.
LAX, first stop: got to have a cup of the strong Brioce Bakery coffee. Kind of crave it flying to LAX. Westbound passengers happily herding off; First Officer about his business on the ramp, catering, cleaners. You?
The first round of bad news comes up on the data link printer in Arizona: “0300 DFW tempo 1ovc tstm lgtctcctg 34012g25 29.77 prsfr.”
I like the way Angela makes coffee, the old-fashioned DC-10 technique: a splash of club soda on the bottom of the pot before brewing–eases the acidity, gives a smooth flavor. Hell, no rush here–I hate redoing stuff. The radar picture won’t be too well defined until about 300 miles out, even better at 160. Have a cup of Boeing brew and relax.
Okay, now we’ve got something to work with. Did I mention how much I love the 737-800 radar? It has its own GPS system, always plotting where it is–and it knows the terrain everywhere it finds itself and miracle: it screens out ground clutter–and does its own tilt for each range. What you see is what’s there–how cool and smart is that?
Tough darts, wingnuts: when it was me in the Air Force flying the White Rocket, I’d have said tell the civilians to get lost–we’re busy here. Now, with 160 passengers and a crew of 7 on board, I think differently.

Supposedly, the terminal folks are on their way back and they’ll fire up the FAX machine for him and his 140 passengers. Too bad you ain’t on the Boeing, I thought but didn’t say.
We start engines, a ground man pulls the chocks and salutes: clear to go.
You’re traveling by air this summer? Good. But there are a few things you should know and be sure of BEFORE you get to the airport. And, of course, some shortcuts and time-savers and more things you should be aware of once you get to the airport to avoid an ugly surprise on check-in.
Combine that with tight customer service staffing and you have the makings of a travel headache–which is preventable. Read on.
2. Know your status. That is, are you protected from cancellations or delays? If you have a deadline at your destination–say, a time sensitive event (wedding, graduation, business meeting, etc) or follow-on reservations (a resort or cruise booking, or flight on another carrier), what protection do you have in the event of a delay or cancellation?
Be aware that most airlines offer compensation or modified travel in the event of situations within their control (say, flight cancellations or mechanical delays), but most people don’t seem to know that airlines and federal regulations do not stipulate any accommodation for weather-related delays or cancellations. Thunderstorms at a major hub, in summer–what are the chances? Pretty darn good, unfortunately. And along with rain, hail, and damaging winds, storms usually bring delays, cancellations and misconnects.
Are you prepared to sleep on the floor of the terminal if weather delays you inbound and the last flight of the day to your destination has already departed? Don’t plan tight connections–or in my opinion, any connections to the last flight of the day, for exactly that reason. But if you must, be prepared to find an airport hotel on your own or, sleep in the terminal. Ugh.
One further note about “knowing your status,” and this is important: did you buy your ticket from an online source other than the airline itself? If so, read the “conditions of carriage” before you agree to the purchase of a ticket: many of the larger online travel sites sell bargain basement seats–but they are for a specific flight, with no recourse if you miss the flight. In other words, the deeply discounted seat does not come with any airline follow-on obligation–that’s how the online site got the cheap pricetag they sold you on. But again, if you misconnect for any reason, your travel is over.
First, sign up for whatever notification app your airline offers. Not only will this automatic function give you an immediate heads-up on your assigned gate and departure time via text message or email, many major airlines will also notify you of a cancellation or significant departure or arrival delay long before the delay appears on monitors in the terminal.
Want to play Superman? Turn your cell phone on as soon as allowed after landing. You’ll be notified by text or email of any cancellation on your itinerary–then you can call the re-booking number on taxi-in and start damage control to save your trip. Same goes for the hours before your origination–keep listening for the text alert regarding your flight. Even if things go well, you’ll want to know what gate you’re scheduled to depart from. In all cases, have your reservation info handy for re-booking–an agent on the phone or face-to-face can access your itinerary instantly if you can provide the record identifier (usually a series of letters and/or numbers) on first contact.
It’s going to be a busy summer for air travel this year, with record crowds and limited customer service options in the case of weather-related delays. But these three simple steps will put you well ahead of the crowd all rushing to rebook flights or deal with a delay. Secure your seat, know your options, stay informed and be ready to rebook.
Little big man standing by the gate, already gone.
Way too familiar, and I’m too foolish to pretend I don’t notice. Last minute, before boarding myself and stepping into the cockpit, staying out of everyone’s hair until about ten minutes prior to push, I do what I can. Mom’s there, bereft, dying a little inside, not even hiding her pain. What can I do?
First, parents: ante up. All major airlines now have programs to care for kids who fly “Unaccompanied,” or “UM:” Unaccompanied Minor.” They are not not free. But they are essential. Your child will be logged in to the system, your credentials and those of whomever is on the other end will be verified. So whoever picks up your child will be positively identified by official documentation: driver’s license, passport or government issued ID. I watch it every week: our flight attendants will walk your child out and verify that they are delivered to the correct person.
Mid flight? You say you’ve booked them on a thru-flight, meaning no aircraft change enroute? GMAB! I can’t tell you how many times my flight sequence from one coast to the other, same flight number, supposedly same aircraft, gets changed. “Take all of your belongings of the plane,” the agent will say on the P.A., “and proceed from this terminal to the new gate in the other terminal.”
Important to me, hope it is to them. Regardless, when we have the UM vouchers, now my crew knows who they are and where they’re sitting. And someone will hand-carry them to where they need to be.
Back to our departure. Mom ready to crater, her son already on my jet. I approached her from behind.
