@Eugene plenty of results for helicopter rotor blade sand static, even after limiting to military science, but i've no idea if any are pertinent to this effect
"Napoleon attacked by rabbits" so I had to go google search it. "The story of Napoleon being "defeated" by rabbits during a hunt in 1807 is a humorous anecdote, but it's not a confirmed historical fact, though it is mentioned in General Thiébault's memoirs. "