Precision Approach Radar (PAR)

BASIC INSTRUMENT PROCEDURES

CHAPTER ONE

There may be times when the precision radar equipment is inoperative or not available for the

landing runway. Under these conditions, surveillance radar is used to align the aircraft with the

approach runway. Since surveillance radar is not as accurate as precision radar and does not

provide elevation data, the landing minimums are higher than those for precision approaches.

When the aircraft heading is within 30 of runway heading and the aircraft is within 10 miles of

touchdown, the pilot will perform a Level Speed Change to the Basic Approach Configuration,

which includes extending gear and full flaps, closing the speedbrakes, achieving 15 units angle

of attack, and initiating the Landing Checklist. (As the speedbrakes will not be extended until

the descent point, the Landing Checklist will not be completed.)

Turns should be standard-rate while being vectored, and one-half standard-rate on final. All

turns should use coordinated rudder and aileron. Heading control is of special importance while

being vectored. Once on an assigned heading, the pilot should concentrate on holding wings

level.

Angle of attack and airspeed are constant during the approach.

At the descent point, the controller will announce: "At the descent point, descend to the

minimum descent altitude,

feet". Reduce power slightly and extend the speedbrakes. At this

point, the landing checklist may be completed. Smoothly lower the nose to establish a descent.

Although no glideslope information is available, recommended altitudes will be provided upon

pilot request. The pilot should establish a rate of descent that will ensure reaching the Minimum

Descent Altitude (MDA) before reaching the missed approach point (MAP). If the MDA is

reached before the MAP, the aircraft will maintain the Minimum Descent Altitude until the

controller advises that the MAP has been reached. At the MAP (normally about one mile from

the runway threshold), the controller will advise the pilot to report the runway in sight or to

execute the missed approach.

Precision Approach Radar (PAR)

When the aircraft heading is within 30 of runway heading and the aircraft is within 10 miles of

touchdown, the pilot will perform a Level Speed Change to the Basic Approach Configuration,

which includes extending gear and full flaps, retracting the speedbrakes, achieving 15 units angle

of attack, and initiate the Landing Checklist. (As the speedbrakes will not be extended until the

aircraft is reported "up and on glidepath", the landing checklist will not be completed.)

Turns should be standard-rate while being vectored, and one-half standard-rate on final. All

turns should use coordinated rudder and aileron. Heading control is of special importance while

being vectored. Once on an assigned heading, the pilot should concentrate on holding wings

level.

Angle of attack and airspeed will be constant during the approach.

When the controller advises that the aircraft is "up and on glidepath", reduce power slightly, and

extend the speedbrakes. The landing checklist may be completed at this point. Smoothly lower

BASIC INSTRUMENT PROCEDURES 1-35