Aircraft Finder for
Sikorsky HO4S
Primary Role: Helicopter, Observation  (USN "HO" 1944-1962)

DesignationModified RoleLocationSerial / Regist.
HO4S-1   
HO4S-3G (HH-19G) Coast Guard version Canada Aviation Museum +ttawa, Ontario
HO4S-3G (UH-19F)