when at minimums unless the LSO has previously assumed responsibility. The pilot
responds with a ball report.
Mode IIT Approach
A Mode IIT approach is a manual approach using needles instrument presentation with
Mode III information. This is a training approach used to build pilot confidence in Mode II
Mode III Approach
A Mode III approach is a CCA talk-down approach with no requirement for special
aircraft configuration. The controller must advise the pilot when the aircraft is at
minimums unless the LSO has previously assumed responsibility.
A nonprecision approach is conducted when a precision RADAR approach or suitable
visual landing aids are not available. An aircraft on final approach continues its descent
to 600 feet after passing the 3-mile DME fix. As the final controller, you must provide
sufficient information to the pilot to maintain an accurate azimuth and altitude until
reaching nonprecision minimums.
The ICLS, or bullseye, is an ILS-type of system that uses the ILM and TACAN/DME. It
provides the same type of information that PALS provides; however, CATCC receives
no visual indication on the type of information sent to the aircraft. A pilot can also use
the ICLS for two additional purposes:
To aid in positioning the aircraft for PALS RADAR acquisition
As an independent monitor of aircraft approach performance during a PALS
Normally, a carrier recovers helicopters after it recovers all fixed-wing aircraft. When
helicopters finish night plane guard duties, CATCC provides the helicopters with the
positioning information they need to quickly intercept the glide path and land.
During IMC recoveries, pilots must fly a Mode III approach until they acquire visual
contact with the optical landing aids. At that time the pilot must report "Ball." Control is
then assumed by the air officer, who issues final landing clearance. If a waveoff occurs,
the pilot must parallel the FB course and report to CATCC for control.