First eight CASA/Northrop SF-5B awaiting delivery to the Spanish AF at Getafe airport.
CASA/Northrop SF-5A C9-039 in a
full tanks configuration shortly
before delivery to the Air Force.
Photo: Airbus Military
The second phase, structural upgrade of the air-
frame started with the signature in November
2003 of the modification contract.
First delivery of an SF-5M (AE.9-014) for modi-
fication to Albacete AB was on 16-09-05; first
flight of the prototype followed on 04-12-06,
two prototyes being completed by the end of the
year, while the first production modified aircraft
was completed by 09-07-07.
Three had been returned to Ala 23 by November
CASA/Northrop SF-5Ms undergoing modifications.