This is probably one of my favourite helicopters to show off since it confuses people,
The Eagle Single Bell 212. Traditionally the Bell 212 is a twin engine medium lift helicopter.
Eagle Copters in Canada has a STC (Supplemental Type Certificates) for the 212 to be converted into a Single Engine helicopter!
They replace the twin PT6 and replace it with a single engine Honeywell T53. It basically turns into a Bell 205 Airframe with the look of a Bell 212. This allow us to lift more then the traditional Bell 212!
To do this conversion it takes 11,000 man hours.