Also, above the weather the air is dry so there is no corrosion.What is the benefit for commercial airliners to travel at such high altitudes?at higher altitudes the air is thinner causing less friction and better fuel mileage and speed idk exactly how high they can go thoWhat is the benefit for commercial airliners to travel at such high altitudes?Traveling at high altitudes as 3 main advantages:
1. Reduced air resistance: The air at 30000ft or FL300 is significantly thinner than air at low altitudes this allows for the planes to achieve much higher speeds using significantly less fuel because of greatly reduced air resistance allowing plane to just cruise with little drag. The thinner air also dissipates sound volume which combined with large distances from the ground prevents loud engines from disturbing people at ground level.
2. Slightly reduced gravity: This makes the plane use less fuel to generate the same amount of lift as a plane flying at lower altitude.
3. High speed wind currents: A plane flying at a higher altitude can "coast" in high speed wind currents not found on the ground significantly reducing fuel used.
Of course a disadvantage would be less lift from the thinner air but this is far overcompensated from all the advantages.
There is no legal height limit they can travel at but in it is difficult for planes to travel at altitudes higher than 30000ft because the air become so thin its difficult for the wings to "bite" into the air to generate lift for the aircraft.What is the benefit for commercial airliners to travel at such high altitudes?
At full speed, they don't need low altitude atmospheric density to produce enough lift to hold them up. So extra air density is just more air that has to be pushed out of the way. That wastes energy. Your car may even get better mileage when on top of a high ridge than it does down in the valley for the same reason. Less air to plow through.
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Regards,
John Popelish
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