Rj111,
It's a bit of a mixed bag at the moment - we have Diamond DA-20 Katanas, Cessna 172s and Robin 2160s/Alpha 160As for the single-engine phases. Eventually, I believe the intention is to phase out the C172s and Katanas and have a uniform fleet of Alpha 160As. These are being built at the Alpha hangar literally right across the road from CTC. The twin-engine phase is taught on Diamond DA-42 Twin Stars.