by NWade » Fri Feb 27, 2015 12:16 pm
John -
A BRS is a lot of weight and takes up a fair amount of space. It features pyrotechnics (explosives that you carry around with you in the plane), and big straps that have to connect to structural members that can carry the load of the airplane during the descent PLUS all the shock loads of the 'chute opening. Its a somewhat-complicated and expensive solution that requires engineering and testing. And, as we've seen from some Cirrus incidents, firing the chute does not guarantee safety. If the plane is on fire or the wind pushes you into power-lines or a mountainside you can be just as hosed as if you didn't pull the 'chute (perhaps more-so).
The Sonex is designed to be small, lightweight, and simple (i.e. not complex). It wasn't engineered with a BRS in-mind. Adding one would detract from your useful load and possibly cause CG problems.
A simpler aircraft is a more-reliable aircraft - the less you have, the less can go wrong and the easier it is to keep up with maintenance. My sailplane, for example, features no motor and no fuel to catch on fire. Annuals cost me less than $500 and "maintenance" involves charging batteries, greasing a few parts, inflating the tires, and washing the aircraft. Yet I can use it like most any VFR pilot uses their airplane: On nice weekends I can go out and fly 100 to 300 miles and have some fun. No complications, no IFR certification or testing of gear, etc.
You could save a whole lot of money and hassle by skipping the BRS and instead spending a small portion of that money on glider lessons (which will teach you how to fly "dead stick" with confidence and precision). Jeremy and John have also mentioned this in seminars and some of the Sonex videos online.
Invest the balance of your time and money into good maintenance on the Sonex and - most importantly - regular flying to keep your skills sharp! Regular flying also helps keep engine corrosion at bay and keeps grease/oil spread around on control hinges and other critical parts; so its a win-win for the aircraft and for the pilot!
--Noel
PPL SEL, CPL Glider
Sonex #1339 - Wings & Empennage done, about to start Fuselage
TD, Center-Stick, Acro Ailerons, Aerovee Turbo