DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click HERE
to register or log in.
Investigation of Techniques for Towing a HH-3F Helicopter at Sea,
DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD SHIP PERFORMANCE DEPT
Pagination or Media Count:
A U.S. Coast Guard HH-3F helicopter downed at sea overturned while being towed back to port. This incident indicated a need for adequate towing techniques. A project was undertaken for the U.S. Coast Guard to develop techniques for towing this type helicopter at sea. A model of the helicopter with a scale ratio of 6.67 was constructed and towed in the model basins. Towing was conducted in calm water and in waves simulating up to Sea State 5. The helicopter towing was unstable under most conditions but was stabilized by attaching a drogue parachute to the helicopter. The addition of the drogue parachute is the primary recommendation made for towing the helicopter at sea.
APPROVED FOR PUBLIC RELEASE