Sikorsky HSS-2 Helicopter Manuals Bundle 1960:
Sikorsky HSS-2 Helicopter Maintenance Instructions Manual General Information - (NAVWEPS 01-230HLC-2-1)
Sikorsky HSS-2 Helicopter Maintenance Instructions Manual: Airframe Group - (NAVWEPS 01-230HLC-2-2)
Sikorsky HSS-2 Helicopter Maintenance Instructions Manual: Transmission Systems - (NAVWEPS 01-230HLC-2-4)
Sikorsky HSS-2 Helicopter Maintenance Instructions Manual: Rotor Actuating Mechanisms - (NAVWEPS 01-230HLC-2-5)
Sikorsky HSS-2 Helicopter Maintenance Instructions Manual: Hydraulic Systems - (NAVWEPS 01-230HLC-2-6)
Sikorsky HSS-2 Helicopter Maintenance Instructions Manual: Utility Systems - NAVWEPS 01-230HLC-2-7
Sikorsky HSS-2 Helicopter Flight Manual (NAVWEPS 01-230HLC-1)
original paper manual (English language)