Experiments with Track Ventilation for Amphibious Tracked Vehicles and With Track Covers and Retraction

reportActive / Technical Report | Accession Number: ADA104810 | Open PDF

Abstract:

An experimental model investigation of the effects of local pressurized captive air bubbles in the track wells of an amphibious vehicle is reported. In addition, the effects of track retraction and of track covers are documented. The track ventilation does not reduce the calm water drag, however, track retraction and the use of track covers can reduce the total drag by 40 at typical operating speeds.

Author(s):
Brown, P. W. ; Klosinski, W. E.
Author Organization(s):
STEVENS INST OF TECH HOBOKEN NJ DAVIDSON LAB
Descriptive Note:
Final rept.
Supplementary Note:
DOI: 10.21236/ADA104810
Pagination:
0028

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):
SIT-DL-81-9-2208
Contract/Grant Number(s):
N00014-80-D-0890
Monitor Series:
ONR
 Subject Terms
Joint Capability Areas:
JCA_1.2.7_Experimentation
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*VEHICLE TRACKS, MODEL TESTS, BUBBLES, WHEELS, COVERINGS, AMPHIBIOUS VEHICLES, HYDRODYNAMICS, DRAG REDUCTION, FAIRINGS, RETRACTABLE, VENTILATION, TRACKED VEHICLES
Field(s)/Group(s):
Combat Vehicles, Fluid Mechanics
Keyword(s):
VEHICLE TRACK WELLS, CAPTIVE AIR BUBBLES, LVTP 7 TYPE VEHICLES, LPN DL 4904 105, WUNR062669
Report Date:
1981 Sep 01