It may seem hard to believe, but this weekend there will be a TV programme worth watching.
Saturday at 9pm on SKY Documentaries "Missile from the East", will describe the East German MZ racing two strokes of the late 50's/early60's and the defection of their rider/development engineer at the Swedish GP.
MZ had an outstanding Chief Engineer, who had worked on the V2 pulse jet engines in WW2. He recognised that a 2 stroke engine was essentially a harmonic device and developed the rotary valves/porting and expansion chambers to effect mild supercharging and higher outputs. Following the defection, Kaaden was blamed for "letting down" the East German regime and what little funding he had was reduced.
The defection was aided by Suzuki who thereby gained both components and drawings of the MZ technology. This in turn led to the generation of 2T race engines, in the 60's/70's, from not just Suzuki ,but in turn all the major Japanese manufacturers.
I do hope they pay credit to Walter Kaaden the Chief Engineer and not just describe the defection story. I hour 50 mins worth but should be worth a watch.