Hydraulic SYS A usually supplies pressure to extend and retract the main gear, the extend pressure normally supplies pressure for nose wheel steering. The Alt nose wheel steering switch changes the pressure supply from A to B through the transfer valve. For the transfer valve to work - switch to alt position, normal qty in sys B, nose air/ground in ground mode.
I believe it decides which hydraulic system powers nose wheel steering. It is usually the 'B' Hydraulic system, but setting it to the Alternate mode will have system 'A' power nose wheel steering. I believe it is set to Alternate if the 'B' hydraulic system fails.
Oh, yeah! SWA turns A Pumps off for push! I don't know how I made that mistake! Yes, System A is nose wheel steering is normal, so SWA turns them off for pushback and Sys B is alternate! Thanks for correcting me.
Hello, Are you planning new videos? Can you make a cockpit test of the Standby Hydraulic pump in a 737NG, please? Also a video of ground test of the STOP RUDDER INPUT in the A306. By ground test, I mean how you trigger the system on the ground. That would be very interesting. Thank you very much.
When you got a second camera, you should make this video again from outside.
What is tze guarded "NOSE WHEEL STEERING ALT" switch?
Hydraulic SYS A usually supplies pressure to extend and retract the main gear, the extend pressure normally supplies pressure for nose wheel steering. The Alt nose wheel steering switch changes the pressure supply from A to B through the transfer valve. For the transfer valve to work - switch to alt position, normal qty in sys B, nose air/ground in ground mode.
I believe it decides which hydraulic system powers nose wheel steering. It is usually the 'B' Hydraulic system, but setting it to the Alternate mode will have system 'A' power nose wheel steering. I believe it is set to Alternate if the 'B' hydraulic system fails.
Almost, Sys A on the B737 (all types) is normal supply Sys B Alternate.
@@aircraftengineerstoolbox2560
It this feature also availible in the 737NG?
@@aircraftengineerstoolbox2560 Thank you.
Oh, yeah! SWA turns A Pumps off for push! I don't know how I made that mistake! Yes, System A is nose wheel steering is normal, so SWA turns them off for pushback and Sys B is alternate! Thanks for correcting me.
@@AVIATIONSOUNDEXPERT Yes B737 classic, Ng and Max not sure about the Jurassic i.e B737-100/200
Hello,
Are you planning new videos?
Can you make a cockpit test of the
Standby Hydraulic pump in a 737NG, please?
Also a video of ground test of the
STOP RUDDER INPUT in the A306.
By ground test, I mean how you trigger the system on the ground.
That would be very interesting.
Thank you very much.
Hi, Still planning on making videos, just going through a job change currently, but I will note your request. Some A330 content coming in the future.
@@aircraftengineerstoolbox2560
If you want to make content about A330 can you also talk about the
PITCH PITCH
warning, please?
OMG it’s flyr I miss them so much.🇳🇴😢
Ian, I miss your dulcet tones…