HeliSAS

Question 1

What version HeliSAS do we have?

Answer 1

Ver51 or lower

As signified by our “BC” Button

Question 2

What is HeliSAS

Answer 2

An attitude-based flight control system

Provides significant reduction in pilot workload

Question 3

What does SAS stand for?

Answer 3

Stability Augmentation System

Question 4

When can the SAS be engaged?

Answer 4

During any phase of flight from liftoff to after touchdown

Question 5

When do autopilot modes become available?

Answer 5

Above 44kts

Question 6

Components of HeliSAS

Answer 6

"2SHAF"
2 Servo-actuators (pitch and roll axes)
HeliSAS Control Panel (CP)
Attitude Reference source (gyro horizontal indicator or GRS)
Flight Control Computer (FCC)

Question 7

HeliSAS can interface with…

Answer 7

GPS nav
VHF nav
HSI
Directional Gyro

Question 8

What is BeepTrim for?

Answer 8

used to modify attitude in SAS

Question 9

What does the 4 beep sound mean?

Answer 9

Means system is disengaged either automatically or by the pilot
Also occurs during each start-up self-test

Question 10

Attitude limits

Answer 10

6 degrees nose-down pitch
11 degrees nose-up pitch
+/- 5 degrees bank

Question 11

How does SAS function in Unusual Attitudes?

Answer 11

If engaged at pitches of -10 to 15 degrees or roll +/-6 degrees it will recover to a level attitude

Question 12

What is the proper technique for flying with SAS?

Answer 12

“Fly Through” a push and release technique to achieve desired attitudes. Best to avoid holding the button down while trying to establish a trimmed attitude

Question 13

What are the ways to disconnect?

Answer 13

Red button on cyclic or soft key selectors.

With SAS and AP on, first red button will disconnect all AP functions, second will disconnect SAS

Question 14

Will you have SAS if you loose Hydraulics?

Answer 14

SAS should be disconnected because it will not function properly without functioning hydraulic controls.

Question 15

Will you have SAS in potential ice conditions?

Answer 15

SAS should be disconnected because it will not work properly in extremely unusual situations where there is significant ice build up on the servos.

Question 16

What does a white light mean?

Answer 16

AP modes is armed or SAS is in standby

Question 17

What does a green light mean?

Answer 17

Selected mode is engaged

Question 18

What angle of bank with the AP use to turn to a heading?

Answer 18

Max 20 degrees

Question 19

When will NAV become active when in standby?

Answer 19

When helicopter is less than 15 seconds from intercept.

Question 20

VOR and LOC bank angle limit

Answer 20

10 degrees VOR

15 degrees LOC

Question 21

When will VRT become active?

Answer 21

NAV must be active and VRT must be armed prior to intercepting GS.
VRT will activate at GS intercept.

Question 22

Procedure for missed approach ILS/VOR

Answer 22

1. add power to arrest rate of descent
2. change CDI to GPS (as long as approach is overlayed)
   - VRT will automatically disengage with the CDI change
3. resume waypoint sequencing, NAV mode will remain active

Question 23

Procedure for missed approach GPS

Answer 23

1. add power to arrest rate of descent
2. disengage VRT by pressing soft key or fly through and it will automatically disengage passing 1000 feet of the threshold

Question 24

When is ALT mod available?

Answer 24

Any time above 200’ of the ground