The story of Bob Diemert, the somewhat eccentric Canadian who wanted the Canadian Air Force to dump their CF-18s in favor of the "Defender" - his heavily armored piston engine "fighter".
I recall seeing the original documentary and found it fascinating. The problem for me is that the swarm concept of ultra low-cost fighter aircraft is all well and good until you have to find someone willing to actually fly them in combat.
Bring back any memories for anyone ?
How to build a fighter airplane for $25,000 or is this guy crazy? - NFB/blog