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Recent developments in store separation and grid survey techniques using the ARA Two-Sting Rig

Published online by Cambridge University Press:  04 July 2016

M. E. Wood
M. E. Wood*
Affiliation:
Aircraft Research Association Ltd, Bedford
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Summary

The Two-Sting Rig system provides captive trajectory and grid survey testing in the ARA 2·74 m × 2·44 m transonic wind tunnel, on models of the order of 10% scale. The system has been in productive operation since 1979, having been used primarily in the captive trajectory mode to predict release characteristics for a wide range of stores/aircraft.

The paper describes the improvements to and developments of the system that have arisen from experiences gained during the last two years of its operational use. A brief description only is given of the general arrangement of the rig. Improvements to performance, simulation capabilities and to wind tunnel productivity are described together with current design studies for new applications.

An appraisal of the overall performance of the method against three other ground based techniques is used to illustrate its merits and defects, using results from recent Two-Sting Rig wind tunnel tests and flight.

Type
Research Article
Information
The Aeronautical Journal , Volume 90 , Issue 891 , January 1986 , pp. 18 - 26
Copyright
Copyright © Royal Aeronautical Society 1986 

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References

1. Morton, D. and Eyers, K. J. C. The Two-Sting Rig System for Captive Trajectory Testing at ARA Ltd, Bedford, UK, 1980, ARA Memo 226, Paper No 35, JTCG/MD Aircraft/Stores Compatibility Symposium, St Louis, Missouri.Google Scholar
2. MrsWood, M. E. Release Characteristics of BL755 from Tornado/Twin Store Carrier determined using the Two-Sting Rig System. Unpublished work.Google Scholar
3. MrsWood, M. E. Release Characteristics of (i) 10001b (ii) IZSRD dispenser from Buccaneer S Mk 2B using the Two-Sting Rig System. Unpublished work.Google Scholar
4. MrsWood, M. E. and PETO, J. Unpublished work.Google Scholar