From your description of the PIAFs role it sounds similar to "hueys" in vietnam - any plans to make a "gunship" version? - "j'aim le smell de napalm dans le matin!"
Think of the Piaf as a large naval launch used for both patrols and inserting troops - somewhere between the Huey helicopter and fast patrol boats of Vietnam river warfare (and YES, I was influenced by Apoclaypse Now). I'm still thinking about the design for my next French 'nef - it will probably be a flying version of the monitor used by the US on Vietnamese rivers.
However, my next 'nef will be an armoured troop carrier for my US marines - think of a steam version of the dropships from Starship Troopers or Aliens. I have the basis for the hull assembled, but need to clear some other projects first before I can spend time to complete this flyer. Watch this space ...