25.11.2014 Views

Heads-Up Display Modes 35 - Metaboli

Heads-Up Display Modes 35 - Metaboli

Heads-Up Display Modes 35 - Metaboli

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

38 <strong>Heads</strong>-<strong>Up</strong> <strong>Display</strong> <strong>Modes</strong><br />

missiles remaining on the top line. The aircraft’s Mach number appears on the<br />

second line. After launching an AIM-7, the missile’s Time-To-Intercept (TTI)<br />

counts down on the third line. After launching multiple AIM-7 missiles, the TTI<br />

for the last missile is displayed.<br />

• A flashing, triangular “shoot” cue appears beneath the TD box, indicating<br />

conditions are favorable for a missile launch. The Master Arm switch must be<br />

enabled, the target must be within the missile’s minimum and maximum<br />

launch ranges, and the steering dot must be within the ASE circle.<br />

3.106 AIM-120<br />

The AIM-120 is the F-15’s primary Medium-Range Missile (MRM), having<br />

substantially improved performance over the AIM-7. Unlike the AIM-7, the AIM-120<br />

has its own onboard radar. It uses control signals from the launching platform to<br />

get close to the target, and then uses its own radar for the final phase of flight.<br />

Visual Mode<br />

When selecting an AIM-120 without a radar-locked target, the HUD enters visual<br />

mode. The basic navigation HUD contains a dashed reference circle. The word<br />

“VISUAL” appears in the lower-right corner of the HUD. The type and quantity of<br />

missiles appears in the lower-left corner, above the aircraft Mach number.<br />

AIM-120 Visual Mode<br />

For targets within visual range, steer the aircraft to place a target within the<br />

dashed reference circle. The missile provides no indication it has acquired a target.<br />

Two seconds after launch, its onboard radar goes active, and it will track the target<br />

with the largest radar cross-section present within the circle. The AIM-120’s<br />

onboard radar can detect targets up to 15 nautical miles away. If it does not detect<br />

a target after the radar goes active, the missile will perform a series of “S” turns<br />

along its original flight path. It will engage the target with the largest radar crosssection<br />

it finds.<br />

Track <strong>Display</strong><br />

The track display appears when the radar has locked a target. The HUD displays<br />

tracking information for the locked target:

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!