PMDG 737 Engine Start Procedure| With Ground Air Cart & Cross-Bleed.

[@3mmar75]

Nice easy straight to the point video 👍🏼

[@emmanuelortiz8293]

a greeting, you will have the installer of the 737-200 of Captain sim?

[@roxout5743]

what does the isolation valve do exactly? when it's open, does it let duct pressure flow from pack 1 to pack 2?

[@FromStartupToShutdown]

with ISOLATION VALVE open you simply allow the bleed air to flow from one side duct pressure to the other ,typically it allows duct pressure to receive bleed air from offside sources when no bleed air available for the onside source...

[@roxout5743]

@@FromStartupToShutdown thank fou for the clarification. What is the SOP(s) for this switch? Should I flip it to the auto position for the rest of the flight once both engines are running ?

[@FromStartupToShutdown]

yes that's correct , AUTO is the normal position for the ISO control switch.

[@lifeofranco]

why dont we turn 1 and 2 main engine bleed air off? does that not cause the high pressure air to back flow into the 5th and 9th compressor stage? rather than going into starter motor?

[@FromStartupToShutdown]

When the Engine Start switch is selected to Ground (GRD) Position , the Engine bleed air valve is given a signal to stay closed , so no worry for the back-flow pressure.

[@rakchanadevi.ncommerce19-29]

Thank so much It's very useful for me bro

[@Ali.waqass]

In picture , u forgot to remove wheel chokes before engine start !!

[@FromStartupToShutdown]

as long as the external power are connected we leave the chocks there.

[@Parkour-u7x]

Now dl a tuto how to start them mid air.