I had many hours in GC's Nanchangs many years ago. NNA, NNB etc, they are a lovely aircraft to fly (if you can get it to the threshhold).
GC was a true gentleman and larger than life character. He was passionate about his Nanchangs. Terrible news. My sincere condolences to family and friends. This is a sad loss to the aviation world.
RIP GC.
F