ANTI-G SYSTEM

1G = Ibs. of Earth’s Gravity. 

- Gray Outs & Black Outs

- Relives Physical Tension.

- To Eliminate or reduce the adverse effects of such maneuvers , fighter & attack type. 

+ 5 Rubber Bladders
+ Compresses - lower parts of the body
+ tightening for adequate blood & oxygen - maintained to the brain.

- a G-FORCE ACTIVATED 

+ pnuematicallly operated. 
+ controls Anti G- Suit inflation & deflation. 
+ Air Source & Low Pressure controls suit inflation & deflation.

- a piece of rubber that creates a seal between the lower spring & lower chamber. 

+ Creates a Seal 
+ Encloses lower chamber

- valve opens to allow air flow from the lower chamber to the upper changer for suit inflation. 

+ closed during static & and suit exhaust conditions. 
+ normally closed.

- spring tends to push the demand valve & exhaust valve upward, closing the demand valve. 

+ Compressed by G- Forces
+ demand valve will open

- valve opens to release air pressure from the suit during a suit exhaust condition & closes during a suit inflation condition. 

+ vents suit air pressure.
+ Closed during 2 G’s or MORE

-  provides a seal between the exhaust valve & weight during suit inflation. 

- opened by the Upper Spring when G Force is decreased by 2 G’s.

- this valve limits maximum suit pressure (9 to 11 psig) & prevents over-inflation of the suit.

- is positioned around the exhaust valve. 
 
+ Pushes up on the upper diaphragm &  weight to open the exhaust valve.

- Gravity or positive G-forces move it downward to close the exhaust valve and open he demand valve during suit inflation condition. 

+ Air from lower chamber to upper to inflate suit.

- weight moves down to close the exhaust valve & open the demand valve (simulating a positive G- force) 

+ Leak checks the suit, the supply hose, & the connections before the FLT. 
+ Check the suit relief valve for proper operation
+ Provide a massage during long flights.

- Less and 2 G’s and no air is being released from the suit. 

+ Lower Spring pushes demand valve closed
+ exhaust valve is open
+ Partially cooled air is applied to the lower chamber from the ac sys. 
+ No air pressure is being relieved from the suit.

- 2Gs or more, weight will push down on the upper diaphragm & seat it against the exhaust valve, closing the exhaust valve. 

Air from the Lower Chamber into the Upper Chamber
Thru opened demand valve INTO suit. 

+ protected by relief valve.

- G- force stabilizes: air pressure in the upper chamber equals the amount of force applied downward. 

+ lower spring will begin to expand to close the demand valve. 
+ exhaust valve also remains closed.
+ air pressure in the suit is maintained as long as G-force is constant.

- Excessive G forces end or drop 2 G’s

+ lower spring will push up (expand) & close demand valve.
+ stopping airflow into the suit. 
+ The weight & upper diaphragm are pushed up by the upper spring opening exhaust valve.
+ providing an opening for airflow from the suit past the exhaust valve out to ambient.