You want the A380 to be a failure?

[coolyokeluke]

I suppose I should know this, or be able to figure it out, but what is the advantage of the 5000 psi hydraulic system? Smaller lines and actuators? Or something else?

I was thinking about that one myself. I'm guessing so here I go. Since actuation power is by surface area X hydraulic pressure you could get away with smaller actuators and perhaps less hydraulic fluid, thus saving weight. I wonder if it's enough of a benefit to offset the thicker hydralic lines and fittings to contain that kind of pressure. Anybody got any better ideas?

What else are they doing to save weight these days besides composites? Anybody care to guess? Put pilots and flight attendents on diets?

 

[TonyC]

I suppose I should know this, or be able to figure it out, but what is the advantage of the 5000 psi hydraulic system? Smaller lines and actuators? Or something else?

From an article I found on the web: "The increase in pressure from 3000 psi to 5000 psi allows the necessary power to be transmitted with smaller piping and hydraulic components. That in itself reduces the aircraft's weight by about 1 metric ton."

A380 pushes5000 psi into realm of the common man​

 

[JimNtexas]

I am prety sure no airline is actually going to put the spas, work out areas, bars into them as has been marketed. Instead they will cram them with 600 plus people...just what I want when flying Chicago to Hong Kong...600 - 800 smelly passangers around me and screeming kids, an hour to deplane at the end of the trip, and another hour or more waiting for luggage to be unloaded.

.

You got that right Tlax25! You're talking living hell in A380 economy. A hell that will engulf any airport terminal where an 800 seat airplane arrives or departs.

Most airlines will stuff any airplane they get with as many seats as the regulators will allow. The market demands cheap seats.

I think they will sell enough A380s to justify the existance of the aircraft. They won't make any money on them, but Airbus's real customers (the goverments of Europe) don't care about that.

 

[EagleRJ]

From an article I found on the web: "The increase in pressure from 3000 psi to 5000 psi allows the necessary power to be transmitted with smaller piping and hydraulic components. That in itself reduces the aircraft's weight by about 1 metric ton."

A380 pushes5000 psi into realm of the common man​

It's the first airliner to use a 5000 PSI system, but it's also one of the first aircraft in general. As far as I know, the only other production aircraft to use a 5000 PSI system is the V-22 Osprey, and from what I've heard from friends who work on that project, the hydraulics system has been nothing but problems. We'll see if Airbus is able to provide the reliability airlines demand with what little expertise the engineers have with these components.

 

[hawg2hawk]

I've never flown a military aircraft with a 5000 psi hydraulic system. And how the hell does an A380 equate to "the common man"?

 

[TonyC]

As far as I know, the only other production aircraft to use a 5000 PSI system is the V-22 Osprey, ...

Judging from the chart included in the above referenced article, the F-18E/F also makes use of a 5000psi hydraulic system.

 

[(o) (o)]

even the frogs think it's ugly

 

[skywaytoheaven]

Come on guys if this thing was built in the US you would love it!(no matter what psi the hydraulic system was)

 

[TurboS7]

I remember when the 747 came out. Runways were not long enough, jetways were not big enough. It would take forever to load everyone etc. Yet look at the success. I think it will be a success on special route segments. I think the short hop over the pond will still be 767-777 country, you will see the Airbus in the Pacific and Asia. It will be interesting to see how it developes.

 

[VNugget]

WHO CARES IT'S A FRENCH SOCIALIST EUROTRASH PLASTIC PIECE OF @#$^ AND I HOPE IT CRASHES WITH ITS FIRST LOAD OF PASSENGERS THEN IT WILL BE PLAIN FOR ALL TO SEE BOEING RULES AIRBUS DROOLS BLAH BLAH BLAH BLAH

Some things you can never change, just smile and move on with your life

 

[Shalam]

WHO CARES IT'S A FRENCH SOCIALIST EUROTRASH PLASTIC PIECE OF @#$^ AND I HOPE IT CRASHES WITH ITS FIRST LOAD OF PASSENGERS THEN IT WILL BE PLAIN FOR ALL TO SEE BOEING RULES AIRBUS DROOLS

Some things you can never change, just smile and move on with your life

You want a big plane with 500+ passengers to crash because part of it is made in Europe? The worst aviation disaster in history involved Boeing aircraft.

 

[Grumman guy]

Bocefus For President !!!!!!!!!!!!

 

[DenverDude2002]

Ive flown over the pond/to hawaii in wide bodied ac, Id much rather take a 767/787 over a 747/380, anyone whos ever been suck in the middle of the 5 of a 2-5-2 configuration knows what I am talking about. 2-3-2 is the perfect seating configuration, never more than one seat away from the isle. The A380 is just to big, the 787 has the right balance of largess and usefulness. Plus the 787 has a configuration for almost every use, long haul and short haul. I think the 787 was a better bet, and the orders say it to, 787 has 217 and its 2 years from its first flight, and that number is likely to double by the time it does fly; 380 has 154 at time of flight.