Contribute correction: Puzzle Flugzeug-Klassiker

  _____      ___                 ___    
 |__  //    / _ \\    ____      / _ \\  
   / //    | / \ ||  |    \\   / //\ \\ 
  / //__   | \_/ ||  | [] ||  |  ___  ||
 /_____||   \___//   |  __//  |_||  |_||
 `-----`    `---`    |_|`-`   `-`   `-` 
                     `-`