User manual

Table Of Contents
Aerosoft PBY Catalina 1.00 Manual
Page 51 of 100
CALC: CALCULATOR PAGES
The calculator pages allow the user to determine the effect which changing a navigation parameter
has on other interrelated navigation parameters. The manufacturer calls these pages the "what if"
pages. For example, what if you wanted to know the new heading to use to stay on course if the
wind direction changed? If you were enroute and knew the wind direction was different up ahead of
you, you could go to the calculator pages and determine the new heading before you get to the
change. Changes in the air are not the only flight-related variables that can be calculated on these
pages. A partial list includes variables such as pressure and density altitude, TAS, winds aloft,
temperature, and VNAV angle. There are also several conversion functions, including a time
conversion table that can be used to compare local times between all of the different time zones in
the world.
The calculator pages are setup by default to show the current flight-related information. This
information will be displayed only as long as the values are not changed. This allows you to see the
current values immediately before changing them. There are 7 different calculator pages, and each is
discussed below. The ":" is displayed in lines of information that can be changed by the user.
CALC 1: Calculator 1 Page (CAL 1)
Fig 2.1
The calculator 1 page is used to determine pressure and density altitudes at any given combination
of indicated altitude, barometric pressure and temperature. The latter 3 values are entered by the
user. There are 6 Lines of information.
Line 1: Indicates this page displays and calculates altitude data.
Line 2: Displays the user entered altitude in feet above MSL.
Line 3: Displays the user entered barometric pressure in inches of Hg. Can also be set to
display millibars of pressure using the SET 6 page.
Line 4: Displays the calculated Pressure Altitude in feet above MSL based on the altitude and
barometric pressure entered by the user.