The book "Wings of Stearman" by Peter Bowers, page 56 has photos of the PT-27 FA108 with a canopy . The Canadians did not like it and returned it back to the U S Army. The US Navy liked the canopy used in FA108 and ordered 1650 canopy frames from Piper. There is also a photo of a Navy N2S-5, with the canopy, taken Glenview Naval Air Station. I did not copy this photo because of possible copyright problems.
Below is the PT-27 FA108 photo from Boeing.