I spoke with an Aspen sales rep this Monday. He was saying they are doing the last bit of finalizing for the FAA "paperwork" (pardon, he gave all the details of what it was, but my mind grouped it as "paperwork") and will hopefully be shipping the units around the 15th to 20th of December. They have the first run of units produced and ready to be boxed, they are just waiting on the approval from the FAA for some sticker on the unit and they'll begin the shipping process. Supposedly, mine is in the first batch that ships.....hopefully
I asked him a BUNCH of questions, and here are some of the details for what its worth:
1. The E5 is the same exact hardware as the new Apsen Pro Max units. They are identical as far as hardware/screen/processors/inputs, etc. The ONLY difference is the software. The E5 is FULLY ugpradeable to the Pro Max via swapping out an SDCard and a log book signoff and paperwork. This upgrade should be available within a few months of the unit shipping.
2. There are a LOT of differences between the older Aspen units (ones being sold now) and the newer ones. New screen, faster processors, fixed the red "X" issue everyone trashes them for (GPS assisted AHRS in the event of pitot and/or static failure), and a bunch of other fixes.
3. The E5 does allow for the removal of the Vacuum system if you want.
4. E5 can inteface will digital sources out of the box, nothing extra needed. IF you need to interface with any analog sources you'll need to buy the ACU. However, the Pro Max comes with the ACU.
5. Supposedly the CDI on the E5 is engineered in such a way that it gives you all the information you'd get from an HSI. I still need to see this to believe it.
6. Upgrading to the mid-tier software upgrade, gives you a full HSI and full Air data on the display in addition to weather/traffic from Garmin, Lynx, and one other ADS-B source (sorry forgot the third one....). Those are the only three ADS-B sources supported as of right now.
7. TruTrak intergration will be ready via Aspen on launch, BUT, TruTrak control heads will need to be sent to have their software updated once TruTrak has released the software. He had no insight on when that might be (since its TruTrak), but said he heard talk that TruTrak was shooting for 1st quarter of 2019.
Hope that helps! I am honestly looking forward to the Aspen E5. For someone like me, it kinda fits my budget and gives me an easy upgrade path later down the road when I have budget for it. while minimizing downtime on the airplane.