User manual

Aerosoft PBY Catalina 1.00 Manual
Page 54 of 100
CALC 4: Calculator 4 page (CAL 4)
Fig.2.4
The calculator 4 page is used to convert the flight path angle into feet per minute, and vice versa.
Put the groundspeed in to use during ascent or descent along with the angle displayed n Line 5 of
the NAV 4 page, and the unit will calculate what this value corresponds to in fpm. Enter the fpm
value into the KAS 297C vertical speed page. Alternatively, enter the GS and the fpm you want, and
the unit will compute the corresponding angle to enter in Line 5 of the NAV 4 page. If you are
tracking to a waypoint, the default page will display the angle required to go from the current
location to the point in space previously defined, based on the current airspeed. There are 4 lines of
information displayed on this screen.
• Line 1: Display to show you are on the page used to calculate ascent or descent flight paths
for vertical navigation.
• Line 2: Display of the user-entered GS in knots.
• Line 3: Display of the -user entered, or calculated, vertical speed in fpm.
• Line 4: Display of the user-entered, or calculated, ascent/descent flight path angle in degrees
relative to the ground.
To use this calculator page:
1. Display the CAL 4 page on the left screen and click on the LEFT CURSOR BUTTON.
2. Use the LEFT OUTER KNOB to scroll through data entry fields, and the LEFT
INNER KNOB to change the values. Each data entry field is highlighted with a
background rectangle to show the current field to be changed. All values will be computed
as you enter the data.
3. Exit the data entry mode at any time by clicking on the LEFT CURSOR BUTTON. All data
entered in the session will be retained.