Do you think they could literally smell the flak?

[mazex]

When I learnt to fly gliders many years ago there was a crematorium close to the field with a rather high smoke stack. The days when it was in use you cloud get a weak thermal close to the downwind sector flying at 200-400 meters and a distinctive smell of burnt hair could be noticed... Really unpleasant but I'm sure the stories from the pilots talking about the smell of corpses is true when flying low with mask off.