I need answers for a bet

[Guest Foot56]

I made a bet about a 747-400 landing at my local air field.

The total length of the air field is 7010 feet by 150 feet. Lets say if the 747-400 land right at the start of this run way and land by the text book/ checklist as far as flaps and throttle can it come to a complete stop and not go over the 7010 feet mark?

[VL-16]

According the the manual, it would most likely run off the end of the runway, but I'm sure it is possible to stop it in that distance. A 747-400 has a required landing distance of 2,300m, which converts out to 7,545 feet. I think "officially" you may have lost this one.

[ 29. July 2005, 13:41: Message edited by: ENJJPTorBust ]

[Guest TheBobGoat]

they can land in that short of a distance, is it empty or full (gas and cargo)

[Guest Foot56]

the way we said was .. a normal landing so how much fuel is left say comming from New York and cargo

[Guest TheBobGoat]

i dont know what their book or TOLD says, so i am probably no help - but they can land in the distance

[Guest fbomb]

I saw a picture of it somewhere on the internet being done, so I would have to say yes, and no the picture did not look doctored. also depends on how ggod the pilots are and what is on the aircraft at the time. Also what kind of runway is it, concrete or asphalt. some runways just cannot handle that kind of weight. DO a little reasearch on the airport itself and maybe ask the airport director, they might know.

[Guest KoolKat]

"say comming from New York and cargo..."

From NY to where? Which airport to which airport, what's the route, what's the fuel flow, what's the landing weight?

If it's by the book, it should be clear enough.

If it's "can" it, it depends.

[Guest waxgoblin]

Foot56, need to make a new thread that so we can all tell you that you're right, for you to show your friend?

kidding.. that would be too e-vil

[ 30. July 2005, 01:45: Message edited by: waxgoblin ]

[Guest Pogo]

Here in England we've had an older model 747 (and KC-135s, F-111s and F-15s) take off and leave on just short of 6000'.

[Guest Rainman A-10]

LaGuardia is only 7000 feet. I'm pretty sure they land 747s there but I can't confirm it off the top of my head.

[LJDRVR]

I don't have the numbers, but 7000 feet is easily within the 747's capability for landing. The issues that would be a show stopper is that your airport is probably not stressed for a 870,000 pound jet. Even more importantly, where are you going and how much weight are you taking? The runway analysis numbers for departure are going to be much more restrictive in terms of distance needed.

Foot, as far as landing distances for transport category jets, the actual distance is measured from a 50' obstacle to a normal touchdown, followed by max performance braking. (Antikid cycling.) No thrust reversers are allowed, and the tires are sanded down to approximate a normal level of service wear. In addition to that number, a "penalty" is applied for all 121 or 135 operators, resulted in a factored, or "required" landing distance. (Even more is added for contamination.)

For your wager, you're probably gonna lose simply because the concrete's not thick enough.

Cheers!

[FlyAF]

https://www.skypark.org/747Landing.htm

That's a 747-200, but still pretty impressive. The article says that they didn't use reversers either, but they had new brakes.

[Gas Man]

[Bergman]

Holy sh1t! I guess there's a reason the 747 captains earn the big bucks. I read on another site that the main gear is 41.33' wide...leaves about 4' on each side for slop. No problem... :D

[M2]

Sorry, I thought you said "I need answers for a TEST!" :rolleyes:

Cheers! M2

[Gas Man]

It may have been a short and narrow runway, but at least it was hilly.