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Hello everyone! Please throw some light on following questions: 1. What if the cabin is pressurised after climbing & crossing 3000 feet AGL(considering safe margin) for an expert CYPRES II or for any other CYPRES model? Cabin pressure maintained 3000 feet AGL or above until exit. Exit from 10,000 feet AGL. Does it impact functionality? 2. CYPRES calculates during initial self integrated test and obtains ground elevation value. If cabin is pressurised after climbing 3000 feet AGL & again maintained 3K or above, does it impact on ground elevation value which CYPRES obtained during self integrated test? 3. How often do you resort to cabin pressurisation for longer duration flights after crossing arming altitude ?