SYS 210 - Ejection System

Question 1

What type of ejection seats does the T-6A use?

Answer 1

Martin-Baker

Question 2

What are the parameters for ejection?

Answer 2

Zero speed/altitude up to 35,000ft/370 KIAS

Question 3

When must the ejection seats be pinned?

Answer 3

Whenever the canopy is not securely down and/or locked

Question 4

Where is the ejection safety pin stowed?

Answer 4

Interior canopy latch handle

Question 5

Where is the MOR located, and what does it look like?

Answer 5

Right side of seat next to seat bucket; marked w/ yellow and black stripes

Question 6

When is the MOR handle used to initiate seat/pilot separation?

Answer 6

If automatic system fails; if seat/pilot separation is desired above 14,000ft MSL (or above 8000 ft mountainous terrain)

Question 7

When can the MOR handle be activated?

Answer 7

Only after the seat has been ejected

Question 8

How do you secure yourself to the seat?

Answer 8

Torso harness, seat-mounted lap belt, leg restraint (lines & garters)

Question 9

What kind of harness do we use?

Answer 9

PCU-15/16 A/P, used in conjunction w/ lap belt, shoulder harness, SSK

Question 10

Where does the SSK attach to your harness?

Answer 10

V-rings on torso harness to the SSK left & right seat buckles

Question 11

When is the personal locator radio beacon automatically activated?

Answer 11

During seat/seat kit separation during the ejection sequence

Question 12

How should you route the seat belt connection?

Answer 12

Under the anti-G hose, over the SSK lines

Question 13

Where do the leg restraint garters attach, and what do they do?

Answer 13

Just above the boots; prevent legs from flailing during ejection

Question 14

How long do your legs remain secured following ejection?

Answer 14

Until the leg lines are released when harness release occurs

Question 15

How can leg garters be released for ground egress?

Answer 15

Operating the latch for each garter or by moving the quick release lever forward (releases both simultaneously)

Question 16

What does the Powered Inertia Retraction Device (PIRD) do?

Answer 16

Shoulder harness real that makes sure you are positioned and locked in the correct posture for ejection

Question 17

When does the PIRD lock?

Answer 17

During rapid deceleration

Question 18

What does the harness control lever do?

Answer 18

Locked (aft): reel retracts any slack in the harness straps as you lean back
Unlocked (fwd): pilot can move fwd freely

Question 19

Where are the parachute & risers packed?

Answer 19

Seat’s headbox

Question 20

Where is emergency oxygen located?

Answer 20

In cylinder on left side of seat bucket 🡪 tubing connects to CRU-60/P

Question 21

How much should the emergency oxygen tank be charged?

Answer 21

1800 – 2500 psi

Question 22

When is the emergency cylinder activated, and how long does it provide oxygen for?

Answer 22

Automatically during ejection or when you pull the green ring; 10 min or until seat/pilot separation (whichever is first)

Question 23

Can the emergency oxygen be shut off once it’s started?

Answer 23

No

Question 24

What does the ISS do?

Answer 24

Controls seat sequencing on ejection

Question 25

What does ISS SOLO mean?

Answer 25

Only seat that initiates ejection, ejects

Question 26

When is ISS SOLO set?

Answer 26

Prior to entering, exiting, or egressing the aircraft on the ground

Question 27

What does ISS BOTH mean?

Answer 27

Either canopy can initiate ejection; RCP ejects first. 0.37 delay between RCP and FCP ejection

Question 28

What does ISS CMD FWD mean?

Answer 28

FCP initiates 🡪 both eject; RCP initiates 🡪 RCP only ejects

Question 29

Where is the SSK located?

Answer 29

Fitted to seat pan, secured in position by a fiberglass upper lid (part of sitting platform)

Question 30

How long is the nylon lowering line for the SSK?

Answer 30

12ft

Question 31

What are the two ADU (orange unit next to MOR) modes?

Answer 31

AUTO: SSK lowered automatically ~4-6 sec after pilot/seat separation
MANUAL: pilot must pull manual KIT RELEASE handle to lower SSK (left side of seat next to the seat cushion)

Question 32

How should the ejection seat height be adjusted?

Answer 32

So canopy breaker hit canopy before head does; Master Caution/Warning Panel runs across top of yellow triangle on EADI; at least one fist width between top of helmet & canopy

Question 33

What are the 2 propellant systems for the ejection seat?

Answer 33

Detonated gas pressure, rocket motor

Question 34

How do the propellant systems work?

Answer 34

Seat moves up set of catapult rails propelled by detonated gas pressure once main catapult cartridge has ignited 🡪 rocket motor ignites at top of catapult rails to gain altitude

Question 35

When does the CFS initiator activate?

Answer 35

As the seat rises

Question 36

How are the rocket motors constructed?

Answer 36

Steel cylinders w/ integral rocket nozzles designed to impart asymmetric thrust for lateral separation between front/rear seats

Question 37

When should you initiate ejection, if possible?

Answer 37

Climb to exchange airspeed for altitude 🡪 initiate in a level or climbing, unaccelerated flight

Question 38

What 3 factors create an operating envelope for the ejection system?

Answer 38

Dive angle, bank angle, sink rate

Question 39

At what altitudes should you initiate a controlled and uncontrolled ejection?

Answer 39

Controlled: 2000ft AGL
Uncontrolled: 6000ft AGL

Question 40

How long does the entire ejection sequence take place below 14,000ft?

Answer 40

4.37 sec (front)/4.00 sec (rear)

Question 41

What does the drogue chute do?

Answer 41

Stabilizes the seat and aids deceleration