Thanks for sharing that, it was very interesting. I had no idea they were testing an N series way back in 1986. Must have been a little disappointing to have had to stick with the C series for so long after testing that.
The Singapore registered Dauphin in the newspaper article is a demonstrator belonging to Samaero (just visible on the engine cowls), which was part of Eurocopter. Apart from a very brief period in the early 1980's with an AS350, they were never an operator. Samaero began business at Seletar Airport and moved to a purpose-built facility at the Loyang Industrial Estate when it was developed to be a centalised location for aviation support companies. This concept has fallen by the wayside as more companies, including Samaero, now re-named as Eurocopter SE Asia and Bell Helicopter Asia move to the newly created Seletar Aerospace Park.