Thanks Errol! As you touched on, they fitted laser sensors to a Dr.1 and an Re.8 which would register hits and they would trigger smoke or streamers. They also installed replica gas guns. It was a fun episode...tho the viewing experience was marred by a large swimming shark circling in the upper right quarter of the screen announcing "Shark Week in 2 Days" including the final dogfight filming!!! Not to worry, the commercials are "shark free"!!!

This also happens during "On Demand" replay, hopefully you folks will be spared this torture!