Spain has purchased 17 Boeing’s [BA] CH-47F cargo helicopters with modifications for $1.3 billion, according to a State Department notice.

The Defense Security Cooperation Agency notified Congress of the potential foreign military sale on April 4.

A CH-47F Chinook assigned to Company B, 3rd Battalion, 126th Aviation, Photo: New York Army National Guard.

Modifications for the CH-47F helicopters include 21 Common Missile Warning System AN/AAR-57A(V)8, and 42 Embedded Global Positioning System Inertial Navigation System.

Under the deal, Spain also requested AN/ARC-231 multi-mode radios, AN/ARC-201D SINCGARS radios and AN/ARC-220 High Frequency (HF) radios.

“The proposed sale of the CH-47F aircraft will improve Spain’s heavy lift capability.  Spain will use this enhanced capability to strengthen its homeland defense and deter regional threats,” DSCA said in a statement.