Is 100-hour based off Hobbs or tach?

This ensures that aircraft receive regular maintenance, irrespective of how little they are flown. Maintenance inspections are also mandatory according to tach time (such as every 100 hours). This ensures that aircraft that are flown regularly receive maintenance inspections more often.



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You will, however, have to perform some mental math or use a calculator when making logbook entries using this format; Each decimal hour (0.1) is equal to 6 minutes, which means your flight minutes will have to be divided by 6 to obtain decimal hours (e.g., a flight of one and a half hours (1:30) = 1. [30/6] = 1.5).

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Mechanical problems, risky weather, and several other factors can throw off your own schedule as well as the plane's schedule for the whole day even on the best flights. Not only will that aircraft be late for its next flight, but it could cause backup for other planes waiting for it to move on the runway.

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