A pilot logbook is a record of a pilot's flying hours.
It contains every flight a pilot has flown, including flight time, number of landings, and types of instrument approaches made.
Pilots also log simulator time, as it counts towards training..
Therefore, Hobbs time is generally measured since the master switch is on.
Hobbs time is usually expressed in hours and tenths of an hour.
For example, if an aircraft engine has been running for 1 hour and 15 minutes, the Hobbs time would be 1.25 hours..
In aviation, we use the 24-hour clock, the day beginning at 0000 and ending 24 hours later at 2400 (which is of course 0000 for the next day).
For example: 8:30 in the morning is 0830.
Midday (12 noon) is 1200..
Some time conversions (like the one above) are intuitive.
For instance, we know that: :15 minutes = quarter hour = . 25 hours..
The 30 minutes portion is expressed as . 50 because 30 minutes equals 1/2 hour or ..
In this case, 45 minutes is equal to 0.75 decimal hours..
45
Thus, 15 mins. = . 25, 30 mins. = ..
48
In this case, 45 minutes is equal to 0.75 decimal hours..
Flight time is defined by International Civil Aviation Organization (ICAO) as "The total time from the moment an aeroplane first moves for the purpose of taking off until the moment it finally comes to rest at the end of the flight", and thus includes time spent taxiing and performing pre-flight checks on the ground, .
Hobbs Time Explained
The Hobbs meter records time as hours and tenths of hours, and it is a true measurement of how long the airplane is being operated.
In other words, when an hour passes on your watch, an hour has passed on the Hobbs meter.
Pilots should use Hobbs meter time when logging flight hours..
Poor punctuality means flights arrive at their gate late or depart late, with consequences for other flights planning to use those gates.
It means flights spend longer on taxiways burning fuel unnecessarily.
It means passengers miss connections and get upset..
Although the digital chart files are compiled in accordance with charting specifications, the final product may vary slightly in appearance due to differences in printing techniques/processes and/or digital display techniques.
All information in this guide is effective as of 15 June 2023. All graphics used in this guide are for educational purposes. Chart symbology may not be to scale. Please do not use them for flight navigation. The Chart Users' Guide is published in accordance with the 56-day aeronautical chart product schedule.
This Chart Users' Guide is an introduction to the Federal Aviation Administration's (FAA) aeronautical charts and publications. It is useful to new pilots as a learning aid, and to experienced pilots as a quick reference guide. The FAA is the source for all data and information utilized in the publishing of aeronautical charts through authorized pu.
Aeronautical information changes rapidly, so it is important that pilots check the effective dates on each aeronautical chart and publication. To avoid danger, it is important to always use current editions and discard obsolete charts and publications. To confirm that a chart or publication is current, refer to the next scheduled effective date pri.
