Why might an airline choose to use the APU on the ground even when GPUs are available? How does the cost of operating an APU compare to using a GPU?
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what is apu in aviation
- How is an APU surge typically handled by the control system or the flight crew?
- How can remote diagnostics be used to assist with APU troubleshooting? What are the typical warranty provisions for repaired or overhauled APUs?
- Are there any limitations on using APU bleed air for engine starting under certain conditions?
- Are there any environmental concerns related to the materials used in APUs?
- How do airlines evaluate the long-term cost of ownership of different APU models? What are the trade-offs between initial purchase price and long-term operating costs of an APU?
- How does the integration of the APU with the aircraft's avionics systems work? Can the APU status be displayed on the flight deck's electronic flight information system (EFIS)?
- What data is typically recorded by the APU's control system? How can this data be used for troubleshooting and predictive maintenance?
- How does the APU assist with cabin pressurization on the ground? How does the APU provide air conditioning to the cabin on the ground?
- What are the challenges of certifying APUs to run on alternative fuels? How does the APU contribute to the overall air quality inside the aircraft cabin?
- What are the latest advancements in APU monitoring and diagnostics?
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