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Whiskey Delta

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Viewing 15 posts - 16 through 30 (of 2,215 total)
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  • in reply to: Why over two identical engines? #548647
    Whiskey Delta
    Participant

    Why would a manufacturer design to have different thrust on different engines? Sure losing the less powerful engine would be less of an issue but on the flip side losing the more powerful engine would make a bad situation evenworse. I wouldn’t say a major constraint is asymmetrical thrust from an abnormal situation. It’s a lot easier to fiddle with the size of the rudder and add new software to the flight computer than messing around with engines.

    in reply to: AA pilot argues with Tower #553422
    Whiskey Delta
    Participant

    They should have realized earlier, that there was a good chance to become fuel critical.
    A diversion to a nearby airport ( Newark, La Guardia etc…..) would have been the better option, better than declaring an emergency, forcing all other traffic to move aside.

    La Guardia? Take a look at the airport diagram and take a guess why that wasn’t an option.

    http://upload.wikimedia.org/wikipedia/commons/f/fb/LGA_airport_map.gif

    EWR? Winds were reported at 310/24g34. And what runway would you plan on them landing there? 22L or 4R? What would the crosswind component be on those runways?

    What other airport has the capability to handle a 767? HPN? TEB? ISP? Yeah, a lot of airports around but none are helpful.

    Sometimes last hour changes can make you fuel critical. How close to his planned fuel burn was he enroute? Were the winds stronger than forecast? Did changes in airport operations or routing changes increase the amount of fuel required?

    I’ve been less than 30 minutes into a 4 hour flight, been given a reroute and been forced to declare “min fuel” because the routing around weather increased our burn significantly. We had enough for the flight but couldn’t accept any further delays. I’ve also been within 1 hour of the airport, been given delaying vectors because ATC had to slow the arrivals because of high winds, change in runways, weather, etc. that meant we when from having significant reserves upon landing to cutting it close. Weather was forecast to be fine so no alternate airport was planned yet plans changed.

    We don’t know what his alternate(s) were and what weather they were experiencing. I’m sure a lot can change in a forecast from departure to arrival. It’s very possible EWR was his alternate but the crosswinds ended up being just as stiff if not worse there. Sure he could have used more of his reserves to go there and fight those winds but why should he if JFK has a perfectly usable runway that would make for an easier approach. Sometimes ATC gets tunnel vision and keep throwing aircraft after aircraft at a runway even with increasing tailwinds, inbound weather, etc. I’ve heard “well the last aircraft did it” more than a few times on arrival if you request vectors around weather rather than go through it. Not to mention sighs of disappointment if you deny a runway because the tailwinds are too high. Airports all have runway configurations that are ideal for arriving and departing aircraft, JFK is no different. As soon as operations require them to abandon that arrangement arrival and departure rates can decrease significantly and now create a whole other list of issues for them. “If all the airplanes would just accept runway X things would go a lot smoother…”

    I would venture a guess this Captain isn’t new to JFK and quite verse in their ability to keep aircraft on a particular arrival despite unfavorable winds. “Well, the last aircraft did it…” It only takes 1 guy to stick up before others join in and start denying ATC assignments.

    In IAH the preferred runways to use are those landing to the West. ATC will jam as many aircraft down that way until someone stops accepting it. I like to call it the “Houston Headwind”, 10 knots off the tail. That’s a pretty standard max tailwind component for aircraft and means 1 knot of increased winds makes landings impossible but they’ll push it until it becomes a problem.

    in reply to: Delta to hire 240 pilots later this year #553423
    Whiskey Delta
    Participant

    Would those layed off originally not be first in line?

    As the article says Delta doesn’t have any pilots on furlough.

    in reply to: Delta to hire 240 pilots later this year #555389
    Whiskey Delta
    Participant

    I hear a minimum of 3 logged Space Shuttle landings will be needed just for an interview.

    in reply to: Goodyear Aircraft Corporation pictures #1105918
    Whiskey Delta
    Participant

    Glad you like them. We’re slowly in the process of finding a home for the album. Stuff like this doesn’t need to be kept stored away in a private house. I’ve contacted 2 pilots I know who work for Goodyear (corporate jet and blimp) with the hopes of them having a archive that perhaps these pictures could fill a hole if they don’t already have them. If not there it sounds like a local University may have a good collection of photos regarding the Goodyear operations during WW2. We’ll see what we can find.

    Other picture I’m curious about is this one:

    http://farm5.static.flickr.com/4039/4540862699_b5b3c405ac.jpg

    Having not seen the inside of many 1940’s era aircraft I’m not sure if this structure would be for an aircraft or airship. The thinness of the metal and other components look more airshiplike to me. Perhaps a portion of a gondola?

    in reply to: Goodyear Aircraft Corporation pictures #1106668
    Whiskey Delta
    Participant

    Any idea what he’s machining here? Looks like wheel hubs perhaps?

    http://farm3.static.flickr.com/2695/4540859971_102ba87752.jpg

    in reply to: Goodyear Aircraft Corporation pictures #1107318
    Whiskey Delta
    Participant

    That circle on the far right of the elevator would be a good mark to match on a B-29 tail.

    in reply to: Boeing Confirms Success on Ultimate Load Test #568892
    Whiskey Delta
    Participant

    I was watching a test flight on flightradar24.com a few days ago. The test aircraft was at 40000ft at 565 kts. Very impressive indeed for it to be at about m0.9 its usually gulfstream territory. please correct me on my mach calculation if im wrong.

    steve

    Was the listed speed true or ground speed. If 565 was the ground speed than the actual true or mach would be different depending on the wind component at FL400.

    in reply to: Commercial aircraft then and today #571705
    Whiskey Delta
    Participant

    http://www.aerospaceweb.org/question/propulsion/jet/turbofan.jpg

    This shows the differences.

    in reply to: Aviation related movies #576224
    Whiskey Delta
    Participant

    The High and the Mighty:

    http://en.wikipedia.org/wiki/The_High_and_the_Mighty_%28film%29

    Bullitt

    http://en.wikipedia.org/wiki/Bullitt

    Bullitt isn’t an aviation movie but it has quite a bit of footage taken on the ramp/runways of SFO with plenty of old jets moving around. There is even a scene on a Pan Am 707 which is great to see for the old uniforms and interior shots. Beyond the aviation nerd stuff it’s a great movie with one of the best (if not THE best) car chase scene.

    in reply to: Child takes over JFK control tower #580403
    Whiskey Delta
    Participant

    I’ve flown into a few airports with kids helping out on frequency a few times and don’t see any problem with it. One day we even watched a girl under the watchful eye of her mom bring the jetway to about 10′ from the aircraft after we arrived. I wish I had gotten a picture of her mom hovering over her daughter ready to take the controls as she carefully brought the jetway in closer.

    When I’ve had kids on frequency it’s always been light traffic with them only handling outbound aircraft with the controller handling most of the workload with the kid giving frequency changes and the like along the way. No big deal. It’s not like the kid is making any decisions anything, he’s spouting out words verbatem given to them by the controller.

    Lord help us if they find out pilots let kids press buttons when they visit the cockpit.

    in reply to: Bud light plane crash (Super Bowl) #482128
    Whiskey Delta
    Participant

    It appears they used a picture of the Kalitta Air crash in Brussels photoshopped in a left wing and a few other things. They sure didn’t try to hide the livery.

    http://lh4.ggpht.com/fisherwy/SDm0bZwZXAI/AAAAAAAAPCk/dEDcWilHZeQ/Kalitta%20Air%20Boeing%20747%20cargo%20plane%20split-in-two%20picture%5B3%5D.jpg

    It also looks like they used the word “Airlines” from the Continental Airlines font.

    It seems to be in a bit bad taste given it was a real accident.

    in reply to: Colgan Flight 3407 co-pilot sent 2 texts prior to takeoff #483685
    Whiskey Delta
    Participant

    Even if she prepared the text earlier she shouldn’t have had an electronic deviced powered up in the first place. It’s a few bad apples that spoil the bunch.

    in reply to: Colgan Flight 3407 co-pilot sent 2 texts prior to takeoff #483689
    Whiskey Delta
    Participant

    Sterile cockpit extends from the time to drop the brake before pushback until you are above 10,000′ MSL. The one exception (I’m not sure if every airline does this) is when the brake is set while on the ground the sterile cockpit rules don’t apply. This is assuming a situation where a crew is sitting for a long period of time waiting for a gate or to takeoff.

    The biggest issue I see with the FO in this event is the lack of professionalism regarding her inability to follow the rule of no electronic devices below 10,000′. Clearly her head wasn’t in the game if she was firing off text messages on the taxi out.

    in reply to: Virgin signs for the A330 #489900
    Whiskey Delta
    Participant

    That seems obvious. Twice the engines, twice the potential for an engine shutdown. The thing is, with a quad you still got 75% of power left, with a twin you are down to 50%.

    True that you are down 50% of available thrust but not 50% of required thrust. At cruise altitudes and speeds neither engine is running at 100%, perhaps even 80-90%. Rather than flying at .80M a twin engine aircraft could slow to say .60M and still have thrust in reserve on a single engine. In addition, the remaining engine has twice the fuel load available to burn.

Viewing 15 posts - 16 through 30 (of 2,215 total)