frank said:
Wouldn't that be the S-67 Blackhawk?
RyanCrierie said:
Got a book from my library recently on US army aircraft since 1947; and it mentions that the army briefly considered using the Sea King as a gunship base for the AAFS program (AH-56), since it was the fastest rotorcraft at the time.
According to All the World's Rotorcraft, a proposed, straightforward Sea King gunship adaptation preceded the S-67.
"When the AH-56A failed to live up to expectations, Sikorsky first offered an intermediate aircraft, consisting of an armed version of the S-61, then designed a simplified AAFSS using the maximum number of components from the S-61. The result was the S-67 Blackhawk which appeared in 1970."
http://avia.russian.ee/helicopters_eng/sik_s-67.php