Good shooting SincoTC.
It is the three view drawing of the SIPA S.373 Elan II.
The SIPA S.273 Elan appeared at the 1963 Paris Air Show as one of a number of twin-Astazou projects. It was to be powered by two Astazou X, and was intended to fill a civil requirement for a 6/8-seat pressurized twin with good airfield performance. The Elan was expected to offer a cruising speed of 330 m.p.h (531 km/h) at 19,685 ft (6000 m) and a range of 1,150 mls (1,850 km) and several versions were proposed, including ambulance, freighter, and radar and navigational trainer versions, and the long -range version Elan II with underwing drop tanks.
SincoTC has declared open house.
Mel