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Question re. Duct Isolation Valves

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I am loving this 767 sim! I find reading about all the systems fascinating, especially the ammount of redundancy that exists. Quick question: I am curious as to why you aren't supposed to fly with the left and right isolation valves open all the time. Any recommended reading for those who wish to delve deeper into the guts of this machine?KR

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You actually already answered your question :-)"redundancy"!Let's assume, you have a duct leak in the left system. If both systems are interconnected, the bleed air from the right system (aswell as from the left system) will escape through this leak and none of the two packs will be energized (also, you could have a complete hydraulic failure!). If both isolation valves are closed, then you will only loose the left system, the right pack will work further.Hope this answers your question,RegardsMark

Mark Foti

Author of aviaworx - https://www.aviaworx.com

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Yes, the manuals! Really they will help you very much. After that, you can use real world 767 material for your learning pleasure like FMC training books, POH etc. by then you should be able to tell the small differences. And last but sometimes much more important than these is this forum's archives. Best Wishes, Randy J. Smith [h3]" A little learning is a dangerous thing"[/h3]AMD XP 2100 |MUNCHKIN 512 DDR RAM |ECS[/b ][i] K7S5A MB[/i] |GF3 64 MEG |WIN XP PRO |MITSUBISHI DIAMOND PLUS 91 19"

Randy J Smith

Thanks, guys. I have read the five .pdf files that came on the CD, and that's what has tweaked my curiosity on that small point. I'll go check out the archives as you suggested.Thanks again, and happy flying.Ken Rogers

If you want kenny, I can send you a SOP {Standard Operating Procedures} for Varig Airlines {Real World} and it's in PDF format. Just give me a e-mail and I will send it off.Best Wishes, Randy J. Smith [h3]" A little learning is a dangerous thing"[/h3]AMD XP 2100 |MUNCHKIN 512 DDR RAM |ECS[/b ][i] K7S5A MB[/i] |GF3 64 MEG |WIN XP PRO |MITSUBISHI DIAMOND PLUS 91 19"

Randy J Smith

Randy : Could you please send it to me as well??? Please :-hahI'm always looking for real world 767 training / operation material to enhance the Pic experience :)my email is [email protected] in advance!Best Regards:-waveRodrigo NavarroKSAN / MMTJ

Check your mail :)Best Wishes, Randy J. Smith [h3]" A little learning is a dangerous thing"[/h3]AMD XP 2100 |MUNCHKIN 512 DDR RAM |ECS[/b ][i] K7S5A MB[/i] |GF3 64 MEG |WIN XP PRO |MITSUBISHI DIAMOND PLUS 91 19"

Randy J Smith

I would love a copy of that pdf if still available... the more information on this baby the better.... [email protected] Despres CYOWLove to Fly :-)

Check yours too!Best Wishes, Randy J. Smith [h3]" A little learning is a dangerous thing"[/h3]AMD XP 2100 |MUNCHKIN 512 DDR RAM |ECS[/b ][i] K7S5A MB[/i] |GF3 64 MEG |WIN XP PRO |MITSUBISHI DIAMOND PLUS 91 19"

Randy J Smith

Sorry bud you need to clean out your mail so it can except this 1.2 meg file: : host mx3.hotmail.com[65.54.254.140] said: 552 Requestedaction not taken: exceeded size limitBest Wishes, Randy J. Smith [h3]" A little learning is a dangerous thing"[/h3]AMD XP 2100 |MUNCHKIN 512 DDR RAM |ECS[/b ][i] K7S5A MB[/i] |GF3 64 MEG |WIN XP PRO |MITSUBISHI DIAMOND PLUS 91 19"

Randy J Smith

RandyPlease could i have a copy?Thanks in [email protected]

Hi Randy,Could u pass it over to me to, please =)[email protected]

Hi Randy,may I have a copy as well [email protected] a very lot in advanceBest RegardsPeter

Hi Randy,Please can yopu send a copy to me as [email protected] in advance.Peter

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