User Guide

Flight Simulator

20002000

2000

154

Microsoft

stack), click the ALT button and HDG button to

turn the altitude and heading hold off, and click

APR (for approach mode) as shown in Figure 12.

4. Establish an airspeed of 90 knots by reducing power to a little less than 10 inches of MP.

5. Observe the descent rate required to fly the glideslope under these conditions (no wind is

present) and notice how the localizer needle stays centered when you maintain a heading of

294 degrees.

You may need to reduce power a little during the approach to maintain 90 knots (descending

into the denser air at lower altitudes tends to increase engine power).

6. Continue down to 205 feet, the decision height for this approach, then press P to pause the

simulation.

What do you think? Neat, eh? Autopilots do a great job of flying the ILS because they make small

changes in heading and descent rate (if and when this is necessary). A constant heading of 294

degrees and a descent rate of a little less than 500 FPM keeps the ILS needles centered. Figure 13

shows the descent rates vs. different ground speeds required to fly the glideslope on this approach.

At 90 knots, for this 3-degree glideslope, a 485 FPM descent rate should keep you right on target.

Now it’s your turn.

Okay, now fly this ILS approach by yourself. As soon as the simulation begins, click off the ALT and

HDG autopilot modes. Intercept the glideslope and commence your descent. You’re on your own. If

you find yourself having difficulty, click the APR button and the autopilot will return you to the ILS.

Figure 12

Figure 13

30 45 60 75 90 105 120 135 150 165 180

3.0 160 240 320 395 485 555 635 715 795 875 955

3.5 185 280 370 465 555 650 740 835 925 1020 1110

4.0 210 315 425 530 635 740 845 955 1060 1165 1270

GROUND SPEED (knots)

ANGLE OF

DESCENT

(degrees

and tenths)

RATE OF DESCENT