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Old 27th Nov 2009, 12:17
  #227 (permalink)  
Cobalt
 
Join Date: Feb 2006
Location: London
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Shame the Cirrus electrical system is so poor...


Please explain. The Cirrus Perspective aircraft have a 100 amp ALT1, 70 AMP ALT 2 and dual batteries. Due to the diode interconnect there is no action required during an alternator failure.
Re the electrical system - Cirrus fixed the anemic ALT2, but has not fixed the strange / complicated connection of BAT2 to the essential bus with no proper instrumentation. So the checklist includes a simple BAT2 on only check as part of the pre-flight, but other than that... As part of my familiarisation I go through all the failure modes in the electrical system and it took me a loooong time to figure out what exactly happens when what fails.

As I said before, all of the differences between the Columba and the Cirrus are down to preferences - you could equally say fair enough, but I don't want to do a cross-tie check as part of every pre-flight and would like an automatic failover....
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