There was a plastics company in BC that could supply them without any approvals.
Local approval is no longer as easy as it used to be for any item that may change flight charactaristics of the aircraft .
Eurocopter Canada did test fly one but never got approval.
http://www.tc.gc.ca/aviation/applica..._num=O-97-0050
Correction they have approval for LH bubble only with Speed limitaion.
Phoenix have LSTC in Canada
Transport Canada - NICO (NAPA Issued Certificates Online)
Prism on for LH
Transport Canada - NICO (NAPA Issued Certificates Online)
and Dart
Transport Canada - NICO (NAPA Issued Certificates Online)
In fact there are many one off aprovals listed here.
Transport Canada - NICO (NAPA Issued Certificates Online)
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