Learn the Cessna 172 ILS approach in MSFS 2024: tune NAV1, select VLOC, capture LOC and glideslope, use APR, then land manually.
In MSFS 2024, tune the Cessna 172's NAV1 radio to the runway ILS, set the inbound course, intercept the localiser from below the glideslope, and select VLOC. Arm APR once established. Control power yourself, disconnect the autopilot before landing, and go around if the runway is not visible at decision altitude.
Set up the Cessna 172 for the ILS
The ILS must be briefed and the correct navigation source selected before the intercept. Record the localiser frequency and identifier, published front course, decision altitude, missed-approach instructions and expected runway. Set the local pressure so the altimeter agrees with the approach information.
| Panel | Required indication for ILS capture | Approach loading |
|---|---|---|
| G1000 | A green LOC1 or NAV1 indication, not a magenta GPS source | Provides the GPS transition and missed approach, but does not replace checking NAV1 |
| Conventional instruments | NAV1 tuned, published front course set on the OBS, and localiser and glideslope needles responding | Optional if a separate GPS is fitted; the radio signal flies the ILS |
Tune the localiser frequency into NAV1 and listen for or verify the correct identifier. The glideslope frequency is paired with the localiser automatically; there is no separate glideslope frequency to enter. Set the published front course even though changing the OBS does not alter the localiser signal itself.
On the G1000, a loaded ILS may change from GPS to localiser automatically, but never assume that it has. Verify the source and green approach annunciations. Our G1000 ILS setup and source-selection guide explains the display cues in more detail.
How to fly the Cessna 172 ILS approach
A normal C172 ILS is flown by intercepting the localiser while level and below the glideslope, then descending only after both guidance signals have been captured.
- Join the intercept course. Approach the localiser at roughly a 20-30 degree angle. Remain at the cleared or published intercept altitude and make sure the glideslope pointer is above centre, which confirms that you are below it.
- Stabilise the aircraft. A practical calm-weather simulator target is about 80-90 KIAS during the intercept. Use the speeds and flap limits for the specific C172 model, then slow towards its normal final approach speed, often around 65-75 KIAS depending on weight and wind.
- Select the ILS source. On the G1000, change the CDI source from magenta GPS guidance to green NAV1 or
LOC1before capture. A common mistake is loading the procedure correctly but leaving the aircraft following the GPS course. - Capture the localiser. Hand-fly to centre the lateral needle, or use heading mode to establish the intercept and arm
APR. Confirm that localiser mode changes from armed to active; pressing the button alone does not prove capture. - Capture the glideslope. When the centred glideslope becomes active, reduce power enough to start the descent. Pitch or the autopilot follows the glideslope, while throttle controls airspeed. A 3-degree path needs roughly five times groundspeed in feet per minute, but follow the glideslope indicator rather than forcing a fixed descent rate.
- Configure for landing. Add flaps in stages within their operating limits and retrim if hand-flying. The C172 has fixed landing gear, so there is no gear extension step. Keep both needles close to centre and use small corrections rather than chasing them.
- Make the decision at minimums. At the published decision altitude, continue only if the required runway environment is visible and the aircraft is positioned for a normal landing. Otherwise apply go-around power, establish a climb and follow the missed-approach procedure.
For procedure selection, radio setup and LOC/GS annunciations that apply across the simulator, see our complete MSFS 2024 ILS sequence.
Do I have to load the ILS into the G1000?
No. An ILS is a radio approach, so the Cessna 172 can receive and fly it with NAV1 tuned correctly even if the procedure was not loaded into the flight plan.
Loading it is still useful because the G1000 can guide you along the transition, organise the approach legs and provide the missed-approach route. It does not guarantee that the correct frequency, CDI source or intercept altitude is selected. When receiving radar vectors, avoid activating a leg that unexpectedly turns the aircraft towards an earlier fix.
Why will APR mode not capture the ILS?
APR usually fails because the wrong source is selected, the aircraft is above the glideslope, or the intercept geometry is unsuitable.
| Symptom | Likely cause | Fix |
|---|---|---|
| Autopilot follows a magenta route | The CDI source is still GPS | Select green NAV1 or LOC1 before localiser capture |
| APR remains armed | Wrong NAV receiver, incorrect frequency, weak signal or an excessive intercept angle | Verify NAV1 and the identifier, then establish a shallower intercept farther out |
| Localiser captures but glideslope does not | The aircraft is above the glideslope, or the approach is localiser-only | Do not dive to recover it; reposition below the path or go around |
| Needle commands appear reversed | The aircraft is outbound, using the wrong runway or attempting a back course | Confirm the published front course and intercept the localiser inbound |
| Airspeed falls after glideslope capture | The autopilot controls pitch but not throttle | Add power and manage speed manually |
| Aircraft fights manual inputs | Autopilot, assisted piloting or conflicting controls remain active | Disconnect the relevant automation and verify the control state |
Do not descend merely because the glideslope pointer is moving. The localiser should be established and the glideslope mode active before leaving the intercept altitude.
When should I disconnect the autopilot and land?
Disconnect early enough to stabilise manually before the flare, while respecting the minimum autopilot-use altitude stated for that C172 panel. Those limits vary between avionics variants and add-ons, so the cockpit checklist takes precedence.
The Cessna 172 has no autoland: APR can track the localiser and glideslope, but it cannot manage throttle, flare or rollout. Our Cessna 172 APR and autopilot guidance covers capture logic and mode limits.
After disconnecting, look towards the far end of the runway, maintain the model's normal final speed, reduce power as the threshold passes beneath the aircraft and flare gently. If the approach is unstable, a safe go-around is better than trying to rescue it; the final flare and rollout are covered in our manual Cessna 172 landing technique.