SIMULATOR GUIDE · 1 OF 6
What Does This FMS Simulator Teach?

This guide explains the learning flow before you enter the simulator.

✓ START WITH THIS GUIDE
Learn the five FMS stages first, then use the simulator step by step.

Interactive FMS Learning Simulator

Start by entering the basic information needed to build a simplified flight plan.

Step 1 of 520% complete
01 Input
02 Route
03 Position
04 Guidance
05 Monitor

1. Pilot enters and verifies flight data

Choose simple planning values. The simulator will use them to calculate route, time, and fuel estimates.

Educational range: 45,000–78,000 kg
Educational range: 5,000–24,000 kg
0–100 knots
Why it matters: Incorrect route, weight, fuel, or altitude data can produce misleading predictions.

2. The FMS builds the route

Compare two simplified routes. One is shorter, while the other has lighter forecast wind.

Select one route to continue.
Learning point: The shortest route is not always the most efficient when wind and operating conditions are considered.

3. Sensors update the aircraft position

The FMS can use several available navigation inputs. Switch GPS off to see how the simplified position status changes.

GPS

Satellite-based position update

Inertial reference

Continuous movement and attitude information

Available

DME update

Ground-based distance information

Available
Position qualityHigh
Primary updateGPS + IRS
Learning point: The system may combine information from more than one available navigation source.

4. The system calculates guidance

LNAV represents horizontal route guidance. VNAV represents the planned vertical profile. Change the values below and watch the predictions update.

LNAV — Lateral guidance

Top-down view: where the aircraft should fly left or right along the programmed route.

VNAV — Vertical guidance

Side view: climb, cruise, top of descent, and descent toward the destination.

32,000 ft
25 kt
61,000 kg
Estimated arrival time1 h 18 min
Predicted fuel at destination8,750 kg
Top of descent112 nm before destination
Active routeRoute A
Important: FMS guidance can be followed by the flight director or autopilot only when the crew selects the appropriate modes.

5. Pilots monitor and respond

Choose a situation, then select the action that best reflects safe system monitoring.

Learning point: The FMS assists the crew, but pilots must verify route changes, active modes, system inputs, and operational consequences.

Flight Plan Complete

You followed the full learning flow from pilot input to crew monitoring.

InputData verified
RoutePath selected
PositionSensors understood
GuidanceLNAV/VNAV reviewed
MonitorScenario completed
Read the complete FMS guide