FS9/FSX/P3D. According to Gary Summons he has had to balance his time between other projects such as his UK VFR Airfields Version 2 series. As a result, his progress on Heathrow is not as far along as had hoped for by this point. However, current progress has seen the completion of all of the base images and ground polygons such as lines, holds, signs, bay markings, and stand id's. He also stated that T5 in version 2 was not accurate due to a lack of photos. As a result, all T5 Buildings have been completely remade and altered to fit the new base image. The same applies to all the stands at T5, as the V2 stands were in the wrong place. "V3 now matches reality." He has reminded that he is still hoping to get it finished by the end of this year. I'll be watching and waiting eagerly! Best of luck there Gary.