text: I am going to allow my 11 year old grandson to answer this.  He is a real history buff and knows quite a bit.  If he gets some of his facts wrong, please correct him in a friendly fashion.  Thank you.  Bradsgranny.\n\nThe Germans invented the first shooting airplane, with guns on it above the propellers.  Then the bomb which you drop on targets.  They used chains to destroy the other airplanes.  I learned this information from a book on the history of WWI.  They also threw rocks from their plane towards other planes.  Tank shells.  Mustard gas.  They had dreadnoughts in WWI.\n\nI typed it for him, but typed exactly what he said.  I'm proud of my boy.