RA-3B/Sonobuoy Separation Program.

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Abstract:

An analytical and empirical examination of the separation of sonobuoys from the modified RA-3B FuNo. 144833 is presented. A sonobuoy launcher which simulates buoy deployments from the S-3A aircraft has been installed in the RA-3B to provide a capability to test the most severe S-3A launch conditions. A digital computer program was used to examine separation trends and identify configurations to be flight tested. Sonobyoys equipped with parachutes or rotochutes and heavier unretarded buoys with a forward located center of gravity were found to separate safely from the RA-3B at speeds at 425 KIAS. Maximum safe deployment speeds are lower for lighter unretarded sonobuoys, or those with a more centrally located center of gravity. Expressions for the ejection velocity from the RA-3B launchers are also derived.

Author(s):
Reitz, Carl O.
Author Organization(s):
NAVAL AIR DEVELOPMENT CENTER WARMINSTER PA AIR VEHICLE TECHNOLOGY DEPT
Descriptive Note:
Final rept.,
Pagination:
0033

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
NADC-73250-30
Project Number(s):
A533-5330/202-5/2P04000001
 Subject Terms
Joint Capability Areas:
JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means
Communities of Interest:
Weapons Technologies
Descriptor(s):
*Sonobuoys, Antisubmarine aircraft, Airborne, Deployment, Launchers, Test equipment, Test methods, Ejection
Field(s)/Group(s):
Acoustic Detection and Detectors
Keyword(s):
S 3A aircraft, S 3 aircraft
Report Date:
1974 Dec 31