SYS - Ejection System

Question 1

Ejection envelope of the seat?

Answer 1

Zero, zero, up to 35000ft and 370kts (within envelope of aircraft)

Question 2

When must ejection seats be pinned?

Answer 2

Whenever canopy is not securely down and locked

Question 3

Where is ejection seat pinned stowed when out?

Answer 3

Canopy latch handle

Question 4

When use manual override handle to initiate pilot/seat separation? (2)

Answer 4

• when automatic system fails

- if separation is desired above 14000-16000ft msl, such as in mountainous terrain

Question 5

Can the manual override handle be used whilst seat is still in the aircraft?

Answer 5

No

Question 6

Warning - when ejecting over mountainous terrain exceeding ________ ft MSL the manual override handle should be used to manually separate from the seat from and deploy the parachute.

Answer 6

8000ft

Question 7

Three areas that secure the pilot to the ejection seat?

Answer 7

• torso harness connected to the upper Koch fittings
• lap belt connections
• leg restraints

Question 8

Where is the seat survival kit and how is it attached to you?

Answer 8

In the seat and attached through the lap belt assemblies

Question 9

When is ELT automatically activated?

Answer 9

During seat separation

Question 10

What may happen if your SSK is not connected?

Answer 10

Will not activate the ELT

Question 11

Does the g suit hose go over or under the lap belt?

Answer 11

Over

Question 12

Purpose of leg restraint garters?

Answer 12

Prevent legs from flailing during ejection

Question 13

What is the PIRD?

Answer 13

Powered Inertia Retraction Device

Question 14

Does the PIRD work similar to a car seatbelt?

Answer 14

Yes

Question 15

What does the PIRD do during ejection?

Answer 15

Pulls the pilot back into the correct ejection position

Question 16

What does the harness control lever do?

Answer 16

Allows between locked and unlocked. Locked will retract any slack and keep it there. Unlocked allows pilot to move forward and back freely.

Question 17

When would you operate in locked position?

Answer 17

Ejections or emergency landing

Question 18

Where are the parachute and risers packed?

Answer 18

Into the seats headbox

Question 19

How is the parachute deployed?

Answer 19

The container holding the parachute is ejected and a lid at the bottom opens to deploy the parachute

Question 20

What breaks the canopy?

Answer 20

The canopy fracturing system or the canopy breaker as a backup

Question 21

How long does emergency oxygen last for and can it be turned off?

Answer 21

10 min

No

Question 22

What does ISS stand for?

Answer 22

Intersect Sequencing System

Question 23

Three positions of the ISS switch?

Answer 23

• CMD FWD
• Both
• Solo

Question 24

Explain what happens when ISS is both, solo and FWD CMD?

Answer 24

Both = both go regardless of who pulls. Rear goes first. If non-initiating seat has pin in it still goes.

Solo = each go independently and no sequencing

FWD CMD = rear seat commands rear only. Forward seat ejects both with rear going first

Question 25

When in Both or command forward what is the delay between rear seat going first and from seat?

Answer 25

0.37sec

Question 26

Does SSK lower from the seat during ejection?

Answer 26

Yes, 12ft line, either automatically or manually

Question 27

When in AUTO when does SSK release?

Answer 27

4 sec after seat separation

Question 28

When in manual, how release the SSK?

Answer 28

Kit Release handle

Question 29

How much space recommended between top,of helmet and canopy to ensure canopy breaker hits first?

Answer 29

At least one fist width

Question 30

Two stages of propellant during ejection are?

Answer 30

- detonation of a gas propellant to initially move the seat up,the rails - ignition of a rocket motors as the seat reaches the top of the canopy rails

Question 31

How are the two seats separated from one another during ejection?

Answer 31

Asymmetric thrust on the rocket motors

Question 32

Should try to eject in a _______ or _______, __________ flight

Answer 32

Level Climbing Unaccelerated

Question 33

Three factors affecting ejection system performance?

Answer 33

- dive angle - bank angle - sink rate

Question 34

Two different types of ejection?

Answer 34

Controlled and uncontrolled

Question 35

Min recommended heights for controlled and uncontrolled ejection

Answer 35

2000ft and 6000ft

Question 36

When considering bank angle, dive angle, and sink rate, what is a conservative way of calculating a safe ejection height?

Answer 36

Add up the three applicable minimum heights for the three individual conditions

Question 37

Time taken between handle pulled to parachute open?

Answer 37

4.37sec

Question 38

Two methods of pulling the handle?

Answer 38

Two fingers and two hands, or one hand

Question 39

During higher altitude ejections when does the head box deploy and parachute deploy?

Answer 39

Delayed until below 14000-16000ft MSL