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AA Boeing 777 DC power source under seat

Discussion in 'Electronic Design' started by 2007 May, May 31, 2007.

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  1. 2007 May

    2007 May Guest

    Yesterday, I flew American Airline flight #137 on a Boeing 777 from
    London Heathrow to LAX on economy seats.
    On the overhead compartment door, there is a label "DC power source under
    seat". I looked but was unable to find this power source.

    Can you tell me what is the DC power voltage of this power source & max
    current or wattage?
    What is the sharp of this plug should be?
    Can I use it to charge laptop and cell phone and use for portable DVD
    Is this power source for all domestic and international airlines?
    How can I find more info? Thank you.
  2. Joel Kolstad

    Joel Kolstad Guest

    It's ~15V at up to ~75W in most cases. See more here:

    If you walk into a Frys or CompUSA and purchase a Targus or iGo "automobile"
    power adapter for your laptop, it'll most likely be usable with the Empower
    connector as well: The 12V cigarette lighter plug snaps onto the Empower plug.
    (Check out their web sites for more info as well.)
    No, of course not.

  3. Each airline makes their own decision on the type of power source they
    provide, and where they place the outlets in their aircraft. Seatguru
    is a good place to see what is available on various aircraft and
    airlines. Here is the link to a typical arrangment in American
    Airlines' 777 fleet:

    You can tell where the power points are by the dots on the seat chart.
    You can get more information on the type by clicking on the image of the
    plug toward the top of the page.

    Here is a link to a general discussion of the various types of onboard
    power sources:

    In the case of American's 777, they offer a standard cigarette style
    jack, like you would find in an automobile. It is rated at 15 volts DC,
    and 75 Watts. Therefore, anything that you could plug into your car
    cigarette lighter, that draws less than 75 Watts (5 Amps), can be used
    on the aircraft.
  4. Joerg

    Joerg Guest

  6. Ooops, you mean 75W DC power, so people can do electrolysis on their water bottle
    and then DETONATE the H / O2??

    Water bottles forbiden from now on, oops, thea and coffee too....

  7. At the moment, they are free, though the thought of charging probably
    hasn't escaped the attention of the airline.
  8. And on SkyBus you have to pay for all of those - and it isn't cheap. AND you
    can't bring your own food on board (which IMO sucks and is a deal breaker)!!
  9. Joerg

    Joerg Guest

    Maybe like the showers in cheap hotel in the UK. When I was a kid I had
    my sobering experience there. The boiler was at the end of the hallway.
    So you had to insert a coin and then run back to the shower. Almost when
    finished the dang thing suddenly turned ice-cold.
  10. Sounds like an advantage to me, except for bottled water. I'd rather
    bring along an Angus beef sandwich or a nice bagel with cream cheese
    and lox than have to suffer airline food on short flights (say 8 hours
    or less).
  11. Reminds me of this "heating on demand" water heater mounted in a
    shower in a fairly modern China residence type hotel:

    Note the 240V electric outlet and open gas flame (showing through the
    slots), gas exhaust, metal parts etc. *inside* the shower. Some
    exclamation marks after the characters in the photocopied instructions
    too. Lots of ways to die from that contraption.

    Electronic ignition. Shut the water off and the gas flame is
    immediately extinguished. The left knob says big/small flame, and the
    right knob says big/small water flow. I forget what the middle one did
    (a rotary switch, I thing).
  12. Joerg

    Joerg Guest

    That sure is spooky!
  13. Joerg

    Joerg Guest

    I stopped bringing the real good stuff. Like burgers I barbequed the
    night before. When I opened my lunch bag on a SWA flight some of the
    passengers near me almost started to drool, just from the scent. One of
    them said I should bring at least 15 burgers if I did that again.
  14. Joel Kolstad

    Joel Kolstad Guest

    Here in the U.S. water and other food is OK if it's been purchased in the
    "secure" area... and I think *most* airport screeners would let you through
    with an empty bottle that you filled from the water fountains in the secure

    In the U.K. I've read that you can't really take anything on board anymore...
    no laptops, DVD players, food, etc... I guess books are still OK...

    And they say the terrorists aren't winning?
  15. Joerg

    Joerg Guest

    I'd have to sell a nice Porter along with each because it's last minute
    full fare, usually :)
  16. Of course you can. Where exactly did you read this rubbish?
  17. You miss the point. Like a movie theatre, you may NOT bring any of your own
    food on board, you must buy it from the hostess/server or do without.


    Policy: Can I bring my own food or drinks on board?

    No. Skybus fares are very, very low in part because that's all you're paying
    for: your air fare. That means no free peanuts. (Actually, no one seems to
    miss them). And we ask that you not bring your own food or drinks on board.
    The only exception is for passengers who will need food that we're unable to
    provide, for example baby formula or baby food, special food for those with
    a medical condition such as diabetes or severe food allergies, or those with
    dietary restrictions (Kosher, Muslim, etc).

    On the other hand, Skybus flights are very, very comfortable partly because
    you can buy delicious snacks and beverages you actually want during your
    flight. Or not. It's your choice.

    To keep everything tidy and organized, we do ask that you finish any snacks
    and drinks you purchase on your own before boarding, as you are not
    permitted to bring them on our aircraft.
  18. Joel Kolstad

    Joel Kolstad Guest

    It wasn't that particular article, of course -- I heard of it last time I
    booked a flight a few months ago and it had some disclaimer about, "if you're
    traveling to the U.K., you're basically screwed" (I wasn't...).

    Apparently they've since rescinded the restrictions?
  19. You're quoting a new article almost immediately after the 'plot' in
    You were completely misinformed then. Those restrictions were rescinded
    months ago- at least half a year ago. Certain liquid restrictions
    remain- these are EU wide.
  20. Joerg

    Joerg Guest

    I always bring the good stuff, from home. Hasn't been a problem yet.
    Place in separate large clear ziplock bags and spread out openly. Got me
    some kudos a couple times. "Look, folks, this here is how it's supposed
    to be."

    Worked for me, so far. But the first time I had a wee bit of water left
    in it and they took it away even though it was under 3oz.

    Long term they won't be winning. I grew up in Germany and they had a bad
    bout with terrorism in the 70's. Really bad. Pretty frightening, I'd be
    looking into the barrel of an automatic weapon every day at the border,
    held by a trembling young lad from their border patrol. Did the
    terrorists win? Nope. Many of them are still thinking about their
    "mighty acts" behind bars. The patrol points are long gone, life went
    back to normal. Except that now another set of terrorists is creeping up
    and many Europeans seem blissfully unaware at this point. Or maybe they
    don't want to see it, I don't know.
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