The forum member fordom made a game like that like 4 years ago (at least, probably more).
I believe it was a clone of the first of the two videos you posted. However much of a troll he is he's always been a skilled coder.
"Death from Above" ( http://www.create-games.com/download.asp?id=7800 ) is the only klik game of this type that I've seen. It was quite well made, but the slow pace and dodgy flight dynamics meant it wasn't actually any fun to play (Sopwith may be much older and simpler, but it's so much more playable than DFA and even more popular clones such as Triplane Turmoil).