The Earth
The Solar System & Time
Charts
Using Aeronautical Charts
Basics of Navigation
Distance, Speed & Time
Vertical Navigation
Fuel Planning
Practical Navigation Techniques
Radio Navigation
Practice Exam

The Flight Log (The PLOG)

The Flight Log (often called the pilot log or ‘PLOG’) is a convenient way of recording the details needed during pre-flight planning and in-flight navigation.

Some exam questions will give you a partially completed PLOG and ask you to fill in the blanks. For example, you will be given a TAS, true track (°T), a wind velocity & the variation and the question will ask you to calculate the magnetic heading (°M) and groundspeed.

We’ve already discussed the information that is written in each column of the PLOG so we won’t go over it again here.

Some exam questions will require you to fill in the blanks of a partially completed PLOG, so you will need to be familiar with the general layout of a PLOG.

The various columns in the above PLOG are:

MSA
Minimum Safe Altitude
Planned ALT
The altitude that you are planning to fly the leg at
TAS
True Airspeed
TRK (°T)
True track (measured on the chart)
Wind
The wind direction & speed
HDG (°T)
The true heading you plan to fly to compensate for the wind drift
HDG (°M)
The magnetic heading after allowing for magnetic variation (variation is marked on the chart by isogonals)
G/S
The calculated ground speed
DIST
The measured distance
Time
The planned time it will take to fly
ETA
Estimated time of arrival – this can only be determined once you are airborne
RETA
Revised ETA – space for a revised estimated time of arrival if required once airborne
ATA
Actual time of arrival overhead the waypoint – so that you can determine an ETA for the next waypoint