Dassault developed the Etendard to meet a NATO requirement
for a light strike fighter. Losing out to the Fiat G91 Dassault
developed the design into the Etendard IV with the Atar turbojet.
The IV gained an order from the French navy to fill the attack and
reconnaisance roles.
As suggested by its name the Super Etendard was developed from the
earlier Etendard IV. The requirement for an Etendard replacement
was to originally be met by a navalised development of the SEPECAT
Jaguar. This failed to eventuate and the French navy eventually
settled on Dassaults proposal for the Super Etendard. The new design
featured the more powerful Atar 8K-50 turbojet, stronger structure
and somewhat revised layout to allow operations at higher speeds
and weights. New systems included an Agave radar, inertial navigation
system, improved avionics and a retractable refuelling probe. Since
entering service in 1978 the Super Etendards have been the primary
strike aircraft of French naval aviation but with the coming of
the Rafale M they will be phased out of service.