Happily, it doesn't mean half-empty hangars and half-baked flight models. In an effort to find out what '70% finished' means, I've spent the last few days yoyoing Yaks, pranging Peshki, and sending He 111s to He ll. 777 Studios and 1C Game Studios claim IL-2 Sturmovik: Battle of Stalingrad is now 70% finished. When it comes to incomplete flying machine simulations however, I'm a little less Beardmore Inflexible. Ever since witnessing an unfortunate accident involving a home-built Fieseler Storch and a cement works chimney, I've made it a rule never to go aloft in incomplete flying machines.
