So I have been going back and forth on this topic personally a lot over the last year or so. Initially I was of the opinion that this was a MUST for me for the comfort of my family. This has lead me to reading a number of blog entries from other builders on how they installed their systems and the different options out there.
Currently I’m following three systems (or two depending on how you look at it). Air-Flow systems, Flightline AC, and South Florida Sport Aviation (repackaged Air-Flow systems with overhead console). The Air-Flow / SF Sport Aviation system uses a condenser scoop that sits on the belly of the aircraft that looks like a P-51 scoop, while the Flightline system is contained in the tailcone just behind the baggage bulkhead.
I was personally thinking of going with the Air-Flow system package as I liked the idea of the condenser sitting outside of the aircraft. It looked slick and installation didn’t seem to be too challenging. It also didn’t have the issues of routing air for the condenser through the tailcone and freed up some space in the tail.
The downsides to all of this is that the AC is really only there to help on the ground, or down low on a really hot day. As I said I thought this was a MUST for my family, but starting to change my mind. In addition to it’s limited benefit, it is a complex system in general, with modifications needed Firewall forward, as well as in the fuselage. Extra hoses / cables that need to be routed, and additional weight to an aircraft. It is also an additional cost in time and budget.
As I submit my final payment for my fuselage and feel my bank account lighten, I am starting to plan out some of the additional items that I will need to order throughout the year for this project. Since an A/C is much easier to install when working on the fuse, this item is highly visible on my list of things that may need a decision in the near future. At the moment, I’m of the opinion that an AC is a luxury item that is not needed in my situation. With the exception of possibly going to Oshkosh, I shouldn’t be in a position where I will have an extended ground taxi in extreme heat / sun.