First flight of the prototype (V-8 ) of the Mil Mi-8 Type series
Saturday, June 24, 1961
- Mil Moscow Helicopter Plant, Russia 
This is a Notable Operational milestone.
Description:
This was the first flight of the single engine prototype that would subsequently become the Mil Mi-8. The aircraft carried the designation V-8 and was a single engined aircraft.
Source: Mil Helicopter Plant | History, Russian Helicopters, 08 Aug 2016
