Mark !! that was one nice change the Geranimo conversion did, was to improve the cowlings. All cam locks, took about 15 minutes to remove and re-install vs 1/2 a day on the originals. I think it was just a 2 piece cowling too. The first apache I ever instructed in had only one vac, and if I remember right, one engine driven hydraulic pump. Your workload could increase significantly if you lost that engine. They were a great trainers and not because of there performance, like so many say, but because of their systems. If you learned and understood the systems on an Apache, you probably wouldn't have much trouble with other twins. The actual single engine performance wasn't all that bad either, I've heard lots of people say, all the second engine did was to lengthen your glide......and that's not true. I remember one day, granted just myself and the student, but the OAT was 100 degrees and we were able to maintain and maneuver at 3500 ft with one engine set at zero thrust, and that's not bad. Yep, those were the days LOL
Brian