StratoCalc

Quick reference

How to use the device. Click or tap its keys.

1Keys & navigation

⏻: Restart · shows start screen
MENU: Back one level
▲ ▼: Move between items
SEL: Open the highlighted item
◄ ►: Change an option · switch tabs
ENT: Confirm · next field
CLR: Delete last digit
UNIT: Cycle the field's unit
SET: Settings

The bottom line of the screen always lists the keys that work on that page. Any key skips the start screen.

2Solving a problem

Press MENU, pick a category, then a function with SEL. Example: Navigation › Time-Speed-Dist.
Type the values you know and press ENT after each. The missing values solve as soon as there is enough to work with.
− flips the sign, for East/West variation and deviation.
UNIT changes the unit of the highlighted field and converts what is already there.

Field markers

● you entered it
= solved by the device
◈ carried over from another function. Clear these in Utilities › Clear Stored Values.

3Calculator

CALC opens a natural-display scientific calculator in degrees. Nothing is worked out until you press ENT.

sin cos tan open a bracket. Type the angle, then ) or just ENT.
a/b builds a fraction. ▲ ▼ move between top and bottom, ◄ ► step out to continue the sum.
1/x 10ˣ x² xʸ insert a template with a box to fill. With a number already typed, x² and xʸ apply to it.
After a result, 1/x switches it between decimal and 1/x form.
SHFT then sin gives sin⁻¹ (same for cos, tan). SHFT x² gives √x, SHFT xʸ gives ʸ√x.
ANS recalls the last answer. CLR deletes one item; SHFT then CLR clears the whole calculation.

4IFR navigation

Course Intercept

Choose INBOUND or OUTBOUND on the desired radial with ◄ ►, then enter current radial, desired radial and heading. TAS and wind are optional.
Instructions give the OBS setting, the turn, and a 30°, 45° or 80° intercept. On the same radial in the opposite direction it uses an 80/260 course reversal.

Holding Pattern

Pick standard (right) or non-standard (left) with ◄ ►, then enter the inbound radial and your heading.
Shows the Direct, Teardrop or Parallel entry with steps and a sector drawing.

DME Arc

Enter current radial, heading, desired radial and DME distance. Wind and TAS are optional.
Join with an 80° turn the short way round the arc, then turn 10° for every 10° of radial. The exit lead radial is given.

Instructions and visualiser

◄ ► switch between the Instructions and Visualiser tabs. On a long Instructions page, ▲ ▼ scroll.
In the Course Intercept and DME Arc visualisers, + − zoom, arrow keys pan and CLR resets the view. Tap the tab name to return to Instructions.

5All functions

Navigation · time-speed-distance, heading and wind correction, ETA, critical point, point of no return
IFR Navigation · off-course 60:1, course intercept, holding pattern, DME arc
Performance · climb and descent, top of climb and descent, climb gradient, glide range, runway wind components
Atmosphere · TAS and Mach, QNH, density and pressure altitude, cloud base, ISA deviation, standard atmosphere
Fuel & Endurance · fuel for a leg, flow and endurance, fuel remaining, reserve check
Weight & Balance · CG, passengers and baggage, fuel-burn CG shift
Utilities · flight timer, unit converter, default units, Morse translator, clear stored values

6Settings

Press SET, choose a line with ▲ ▼ and change it with ◄ ►.

Display theme · Default (green), Night (red on black, protects night vision), Day (black on white)
Default units · US (lb, US gal, °F) or Metric (kg, L, °C). Distance, speed and altitude stay in NM, kt and ft. Set individual units in Utilities › Default Units.

7Exam mode

EXAM locks the device for an exam and shows a 6-digit code once, for the invigilator only. Press SEL to continue.
The header shows an EXAM badge and Settings are locked.
To unlock, press EXAM, type the code and press ENT.

✈

STRATOCALC

FLIGHT COMPUTER · V1.35

MADE BY

Capt. Smayan Satpute

Press any key

StratoCalc V1

▲▼ navigate · SEL enter

SET

SHFT

−

UNIT

▲

◄

SEL

►

▼

CALC

CLR

⏻

EXAM

sin⁻¹sin

cos⁻¹cos

tan⁻¹tan

(

)

1/x

10ˣ

√xx²

ʸ√xxʸ

ANS

ENT