LANDING CONTROL CENTRAL SYSTEM
AN/SPN-42
The landing control central system (tracking and
comparison radar) (LCCS) transmits Ka-band signals
from the carrier to the aircraft. The LCCS uses a
conical scan antenna. This radar system tracks
aircraft, and compares the aircraft position to the
desired glide path.
There are five shipboard
subsystems included in
subsystems are as follows:
this system. These
1. Tracking pulse radar set (Ka band). This radar
set locks on aircraft when the aircraft enters the
acquisition gate. The system then tracks the aircraft
in range, azimuth, and elevation until touchdown or
waveoff.
2. Stabilization group. This group translates the
actual radar-derived position vector of the aircraft to a
Figure 9-1.-Simplified block diagram of the ACLS system.
9-2
