From "Flugzeug Classic" 1/2006
...Spain too feared an atom attack and during 1962/3 contacts were made with HASA ,Rolls Royce and INTA
to create an experimental VTOL based on the Saeta and powered by 2x RR RB 162 and 2xMarboré
Later this should conduct to a VSTOL attack plane and a light STOL transporter
With the purchase of numerous and cheap F 86,among others reasons,Spain lost interest and the program was cancelled
Sorry for the bad translation
Richard