Hydraulics A & B
 

Does anyone have an easy way to remember what is on the A sys, and what is on the B sys, of the 737/300, would love any help.

[ 08 October 2001: Message edited by: Fly gal ]

What Type / Series ??

Bfor Brakes is a start

could never remember even in an alcoholic haze, until I found out it was easier to remember what wasn't on each.

If you accept each will have flight controls & it's respective thrust reverser & A/P, then the "A" system has gear & ground spoilers & the "B" system has flaps and yaw damper.

That help??? I dunno

Look at the right wing flight spoilers.
A and B
inbd A.....otbd B.
The other wing is a mirror image.

All primary flight controls use A and B.

In reference to System B, just think BORFY!

B: Brakes

O: Outboard flight spoilers

R: Rudder

F: Flaps

Y: Yaw Damper (also sys. A input)

and the R/H Reverser.

Everything else sources from System A. Primary flight controls have duplicated systems and manual reversion.

.. and Autopilot B, and Alternate nose wheel steering (where fitted) ;)

NB 2ROSY FLED

System B:
Normal Brakes
#2 reverser
Outboard Spoilers
Yaw Damper
Flaps
Leading Edge Devices

Everything else is on System A!

Thanks for all the wonderful answers! Now that I have this solved "what happens when I press this Red button"......

[ 12 October 2001: Message edited by: Fly gal ]

TRY THIS:
HYD A,
A-A/P A

R-RUDDER
E-ELEVATOR & FEEL
A-AILERONS
L-LANDING GEAR

G-GROUND SPOILERS
I-INBD FLT SPOILERS
A-ALT BRAKES
N-NOSE WHEEL STEERING
T-NO.1 THR REVERSER

P-POWER TRANSFER UNIT


HYD B,

A-A/P B

R-RUDDER
E-ELEVATOR & FEEL
A-AILERONS
L-LEADING EDGE DEVICES

T-TRAILING EDGE FLAPS
O-OUTBD FLT SPOILERS
Y-YAW DAMPER

B-NORMAL BRAKES
A-AUTOSLATS/ALT NOSEWHEEL STEERING*
T-NO.2 THR REVERSER

* AS INSTALLED :)

Its all here...

http://www.b737.org.uk/schemehyd.gif


With thanks to Chris Brady for his excellent site.

http://www.stopstart.fsnet.co.uk/mica/FarSKid.gif
Pengineer

[ 14 October 2001: Message edited by: Pengineer ]