Here is a PNP for Western Front Ace: The Great War in the Air, 1916-1918 (https://boardgamegeek.com/boardgame/294112/western-front-ace-the-great-war-in-the-air-1916-19) by Compass Games.
There are several elements and charts that were remade, edited, or modified, so there might be some grammatical errors and include most of the errata changes.
Western Front Ace PNP (https://drive.google.com/file/d/1-rzxkbADLeuNg5o_p2sTFcN8AsjH0nBo/view?usp=sharing)
Hope you enjoy the PNP, and if you do, buy the game.