Aviation Watch RW2 Black Topring Now you can: Record details of each flight by sector including start time of day, flight duration, navigation sector times. Total flight distance and average speed including data for each sector and flight end time of day. Data can be amended and stored in the flight log. You can store up to 99 flights in flight log. Data shown is total number of flights, total duration of flights and time of day. Data for each flight can then be reviewed and amended. Click here to download instructions Click here to see the preselectable screen layouts Prolonged back light option Speed, distance time calculator - enter any two variables to calculate the third. Independent 99 memory stopwatch Rear battery door for easy battery change. Other features include: