Unit Six: Anti-Ice/De-Ice Systems

STUDENT GUIDE T-39N/G NATOPS

UNIT SIX: ANTI-ICE/DE-ICE SYSTEMS

REFERENCE: T-39 NATOPS MANUAL

ENABLING OBJECTIVE:

A.1

Locate and operate T-39N/G aircraft systems, given a mission in a T-39 in accordance with

NATOPS.

ENABLING STEP:

A.1.7 Recall the basic description, related systems, and operating limitations of the T-39N/G

anti-ice/de-ice system.

NATOPS SIX: ANTI-ICE/DE-ICE SYSTEMS

A. Activate anti-ice system when OAT is +5 to - 20C and in visible moisture.

B. Sources of anti-ice

1. Engine compressor bleed air (9th stage) is provided to the following:

a. Engine inlet duct.

b. Engine flow straightener vanes.

c. Engine guide vanes.

d. Engine nose bullet.

2. Electrical heat is provided to the following:

a. Pitot tubes.

b. Stall warning vanes.

c. EPR probes.

d. Ram air inlet.

e. AOA probe.

f. Windshield.

g. AC and DC generator inlets.

ANTI-ICE/DE-ICE SYSTEMS

6-1