Hydrodynamic Towing Stability Evaluation of SSN-688 Class Submarines

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Abstract:

An experimental evaluation was conducted to investigate the surface towing characteristics of SSN-688 class submarines. A 122.5-scale model was towed in the David Taylor Model Basin with variations in displacement, trim, metacentric height GM, towpoint location and with several stern appendage modifications. The SSN-688 class submarine was towed in a stable configuration at speeds up to 10 kn with the sternplanes set to 25 deg trailing edge up, at a trim between 6.0 and 7.5 ft 1.83 and 2.29 m down by the stern, at a displacement between 5000 and 5650 LTSW, with a GM between 0.75 and 1.10 ft 0. 23 and 0.34 m, with the lower rudder extended 2.25 ft 0.69 m and with a lower rudder plate appendage attached. Hydrodynamic performance, Towing characteristics, Submarine towing stability.

Author(s):
Fellman, Mark S.
Author Organization(s):
NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD HYDROMECHANICS DIRECTORATE
Descriptive Note:
Directorate rept.
Pagination:
0055

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
CRDKNSWC-HD-0386-135
Monitor Series:
NAVSEA
 Subject Terms
Joint Capability Areas:
JCA_4_Logistics; JCA_5_Command and Control
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*HYDRODYNAMICS, *BALLISTIC MISSILE SUBMARINES, VELOCITY, STABILITY, SCALE MODELS, MODELS, MODIFICATION, EDGES, DISPLACEMENT, HEIGHT, METACENTRIC HEIGHT, APPENDAGES, MODEL BASINS, TOWING, TRAILING EDGES, VARIATIONS, SURFACES, PLATES, SCALE, CONFIGURATIONS, RUDDERS, SUBMARINES
Field(s)/Group(s):
Submarine Engineering, Fluid Mechanics
Keyword(s):
SSN 688 CLASS VESSEL, TOWING STABILITY, WUDN502229
Report Date:
1993 Dec 01