I'm pretty sure the ship in question is the Lark IS-29D2 single place
all metal 15m span ship. It's a pet peeve of mine when they mix photos
with the wrong caption. Especially when the ASW 28 is a graceful ship.
The IS-29 isn't bad looking for a metal bird....

The Pegase looks more like an ASW19 or ASW20. There are some very
subtle differences in the vertical tail and horizontal and although
the wing area of the Pegase is the same as a 20, the planform and
airfoil are different.

Kevin Finke
Everett, WA