Frequency Chages

T-6A INSTRUMENT NAVIGATION

CHAPTER SIX

2. If you're IMC, this field will be in blue on the low chart but not all blue fields have a

published approach compatible with our aircraft. Green fields on the high chart may have

suitable DoD published low approaches and should be identified through preflight planning.

FREQUENCY CHANGES

Every time you are handed off to a new controller, the new frequency shall be written down. As

a technique, it's a good idea to write down both the UHF and VHF frequency. Write each

frequency in an orderly fashion so the frequency in use is the last in the line. This method will

keep frequencies in sequence and allow you to identify the previous channel if communication

problems occur.

VHF is the primary radio at civilian airfields and it is therefore a good technique to use it in

civilian patterns. If you switch from using UHF to VHF or vice versa, always inform you

instructor.

AIRSPEEDS

The following airspeed profiles will be adhered to on INAV flights and simulator events.

1. Climbs. 180 KIAS until 10,000 feet MSL. Above 10,000 feet MSL, climb airspeeds will

be determined at IP discretion within NATOPS limits.

2. Enroute. 240 TAS for low altitude structure (Victor routes) and 270 TAS for high altitude

structure (jet routes). All canned NPA routes are listed at 240 TAS.

NOTE

Calculate the Indicated Airspeed (IAS) for the required TAS 500

feet prior to all enroute cruising altitudes. For this procedure, use

the indicated OAT (IOAT minus 15 C) to compute the IAS on

your CR-2.

Descent:

Cruise Descent. Last indicated airspeed.

Enroute Descent. 200 KIAS.

Approaches:

1. Radar Vectored. 200 KIAS, unless otherwise directed by ATC. This airspeed will be

maintained until the transition to BAC.

All other approaches from (IAF to BAC) airspeed will be 150 KIAS.

STUDENT SUPPLEMENTARY FLIGHT PROCEDURES

6-5