Correct, two Hydraulic systems:
The Mnemonic goes B-FAIR LONGER
#1 System:
B - Brakes
F - Flaps
A - Anti Skid system
I - Inboard Roll Spoilers
R - #1 Rudder Actuators
L - Landing Gear
O- Outboard Roll Spoilers
N - Nose Wheel Steering
G - (no longer used)
E - Emergency Brake (park brake)
R - #2 Rudder Acutators
That was for the Classic. The Q400 is similar.
So yes, if you lose #1 system you only have the emergency brake (more likely three applications instead of four, done very carefully as there is no anti-skid) and you'll be landing with zero flap.
If you lose #2 system there is an alternate gear extension system that will get the gear down.
DIVOSH!
Last edited by Di_Vosh; 13th Mar 2015 at 21:24.
Reason: Thanks Hugh