Biplane Barmy is a simple set of rules for conducting WWI dogfights; it is designed with fast and easy play. It is published by Fat Jonny Games and available for download at RPGNow.com - in an interesting evolution of DTP wargames, RPGNow allows you to purchase games at a low price which you can download and print out yourself. The rules include basic and advanced rules, a random scenario generator and a dictionary of WWI era slang as well as historical information on the air forces of the combatant nations on the Western Front.