does plane fly on earth or space
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1,111,111 TRP = 11,111 USD
1,111,111 TRP = 11,111 USD
1,111,111 TRP = 11,111 USD
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Where Planes Fly
Earth’s Atmosphere:
Commercial and military aircraft operate in the troposphere (up to 12 km altitude) and stratosphere (12–50 km).
Jetliners cruise at 9–12 km, where air density supports lift via wings and engines.
Space Boundary:
The Kármán line (100 km altitude) marks the edge of space.
Planes cannot fly here due to insufficient air for lift or propulsion.
Exceptions:
Spaceplanes (e.g., Virgin Galactic’s VSS Unity) briefly enter space (~80–100 km) but rely on rocket engines, not traditional aerodynamics.
High-altitude research aircraft (e.g., NASA’s ER-2) reach ~20 km but still need atmospheric oxygen.
Why Planes Stay Earthbound
Lift Dependency: Wings require air pressure; space is a near-vacuum.
Propulsion: Jet engines need oxygen; rockets (used in spaceflight) carry oxidizers.
Key Difference
Planes: Fly in air, land on runways.
Spacecraft: Use rockets, orbit Earth/voyage beyond.
Summary: Planes are confined to Earth’s atmosphere. Space travel demands entirely different technology.