G Forces

Question 1

What does little g mean

Answer 1

Measure of magnitude of an acceleration force with respect to gravity Equal to 32.2 ft./s2 or 9.81 m/s2

Question 2

What doe big G mean

Answer 2

G= F/W = (massacceleration)/ (massgravity) = acceleration/gravity

Question 3

What is speed

Answer 3

Magnitude of motion and rate of change

Question 4

Linear acceleration

Answer 4

Change in speed with out change in direction

Question 5

Radial acceleration

Answer 5

Change in direction without a change in speed

Question 6

Angular acceleration

Answer 6

Change in both speed and direction

Question 7

Deceleration

Answer 7

Reduction in the velocity of a moving body with respect to time

Question 8

What is the 3rd law of motion

Answer 8

For every action there is a equal opposite reaction

Question 9

What is centripetal force (radial)

Answer 9

force acting on an object moving in a circular pattern that holds the object on its circular path

Question 10

Centrifugal force

Answer 10

Force extended on an object owing in a circular pattern that causes an object to move in a straight line

Question 11

What are the factors of acceleration

Answer 11

• Body area
• intensity
• rate of onset
• duration
• impact direction

Question 12

How many g’s does ejection seats expose the aviator to

Answer 12

15g’s in 0.1 seconds

Question 13

If the rate of onset of acceleration increases, the severity of the effect on the body will?

Answer 13

Increase

Question 14

-Gz forces you

Answer 14

• Up
• Forcing blood to your legs
• Blackout

Question 15

+Gz forces you

Answer 15

• Down
• Forcing blood to your head
• Red out

Question 16

-Gy and +Gy do what

Answer 16

(-) is right
(+) is left

Question 17

Gx+ and -Gx force you

Answer 17

Forward and back wit the + being backwards and - forwards

Question 18

1.0-2.5 +Gz does what to our body

Answer 18

Make blood pool

Question 19

2-2.5 gz+ does what to your body

Answer 19

Black out

Question 20

4.5+ gz does what to your body

Answer 20

Goodnight ur now unconscious

Question 21

Factors that make G tolerance worse

Answer 21

Dehydration, fatigue, hemorrhage, alcohol, varicose veins

Question 22

What increases G tolerance

Answer 22

Asymptomatic hypertension, fear, short stocky people, AGSM, anti G suit

Question 23

What type of forces do our body’s handle the best

Answer 23

Gx +-

Question 24

What is low magnitude acceleration

Answer 24

1-10G

Question 25

What are some effects of high magnitude

Answer 25

Discomfort, injury, incapacitating, irreversible injury, Lethal

Question 26

High magnitude accelerations

Answer 26

10Gs in less than a second

Question 27

What is the “jolt”

Answer 27

Expressed in feet per second of G’s per second, is the rate of change of acceleration or rate of onset of acceleration forces

Question 28

Can deceleration forces cause incapaticication of the crew member

Answer 28

Yes

Question 29

What’s the max Gz for - and +

Answer 29

• Gz 15 +Gz 20

Question 30

What are three survivability criteria

Answer 30

• Amount of deceleration force transmitted to the crew member -
• Occupiable living space
• Aircraft design failures (creep)

Question 31

What does C.R.E.E.P stand for

Answer 31

• Container
• Restraint system
• Environment
• Energy absorption
• Post crash factors

Question 32

What is CREEP used for

Answer 32

Enhance crash survivability