The Auster J/5 Alpine was a 1950s British single-engined four-seat high-wing training and touring monoplane built by Auster Aircraft Limited at Rearsby, Leicestershire.
The Alpine was a hybrid aircraft based on the fuselage of the J/5 Aiglet Trainer fitted with the wings from the J-1 Autocrat. The prototype was converted from an Auster J-5L Aiglet Trainer.