The Boeing 737 APU
The Boeing 737 APU
Aug 5, 2023
b737.org.uk
The Airbus A320’s Auxiliary Power Unit (APU) is vital on the ground — powering electrics and starting engines — but it can’t be started above 25,000 feet. In thin air, the APU’s small turbine simply can’t spool up safely, so Airbus designed it primarily for ground use and low-altitude emergencies. Once running, it can provide backup power in flight, but at cruise, you’re relying on the main engines and redundancy systems. A clever compromise of weight, safety, and design. #avgeek #planespotting
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The Airbus A320’s Auxiliary Power Unit (APU) is vital on the ground …
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FacebookCockpit King
Uncover the APU showdown between Boeing and Airbus 🔧✈️ — two very different philosophies in aviation engineering. The Auxiliary Power Unit (APU) isn’t just a backup engine; it’s a critical lifeline for electrical power and air systems when the main engines aren’t running. Airbus takes redundancy to the skies, with APUs certified to operate even at cruise altitudes above 35,000 feet — giving pilots extra safety options during emergencies. Boeing, on the other hand, leans into weight efficiency a
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Uncover the APU showdown between Boeing and Airbus 🔧✈️ …
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