Originally Posted by
A and C
If you have an eQRH ( and some are very good ) then you need a paper back up to cover the situation of electrical problems disabling the eQRH or smoke in the cockpit that reduces visibility.
I know both situations are unlikely but Sod’s law says it will happen to someone some time.
True in a way, however, in the setup i worked in, it was a triple iPad solution (one for each pilot plus a spare one), all of which had to be charged up, which gives at least 30 hours of combined battery life. And honestly, especially the smoke stuff is better with an EFB, increase screen brightness and it helps a lot, much better than a paper one. Would prefer that a lot over the current paper setup i have to use, but then, that company uses still paper for a lot of stuff, they are sadly around 20 years behind the times.