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Warship 2009 - Airpower at Sea PDF

512 Pages·2009·25.016 MB·512\512
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RINA WARSHIP 2009: AIRPOWER AT SEA 17 - 18 June 2009 © 2009: The Royal Institution of Naval Architects The Institution is not, as a body, responsible for the opinions expressed by the individual authors or speakers THE ROYAL INSTITUTION OF NAVAL ARCHITECTS 10 Upper Belgrave Street London SW1X 8BQ Telephone: 020 7235 4622 Fax: 020 7259 5912 ISBN No: 978-1-905040-59-9 Aircraft Tie-Down Points for the Affordable Aircraft Carrier Systems and engineering technology Contents Introduction (cid:32) Significance (cid:32) Design Approach (cid:32) Cost Savings (cid:32) Meeting the requirements (cid:32) Conclusions (cid:32) ©Frazer-Nash ConsultancyLtd. All rights reserved. Confidential and proprietary document. Introduction QE Class commercially driven design (cid:32) Specific and stringent set of (cid:32) requirements No ‘COTS’ Tie-downs designs (cid:32) suitable New design required (cid:190) Review of existing designs (cid:32) Assessed risks and cost implications (cid:32) of each design feature Major cost savings can be achieved (cid:190) by applying advanced engineering to a simple part ©Frazer-Nash ConsultancyLtd. All rights reserved. Confidential and proprietary document. Requirements Cheaper procurement and installation (cid:32) 10,000lbs SWL in any direction (cid:32) Integrity of deck maintained under all local and global loading (cid:32) Compatible with lashing requirements (cid:32) Lifespan of 30 years (cid:32) Minimises FOD issues (cid:32) Minimal water retention (cid:32) Flush mounted – compatible with CV operations (cid:32) Standard ‘Self-Jigging’ design, to be installed on any panel line (cid:32) Automated welding process – no prep on deck, unit pre-prepped (cid:32) Standard design, suitable for welding into between 14 to 30mm plate (cid:32) with minimal modification (performed by supplier) Simple testing criteria (cid:32) Equivalent material to Lloyds Grade EH46 Steel for the main ‘cup’ (cid:32) ….. (cid:32) ©Frazer-Nash ConsultancyLtd. All rights reserved. Confidential and proprietary document. Significance Aircraft tie-down points (cid:32) Small and simple – but not insignificant (cid:32) Not complex (cid:32) Responsible for holding down Carrier’s most expensive asset (cid:32) 4,000 per vessel (cid:32) Total baseline cost of £9,000,000 per ship (cid:32) Systems Design Approach – Main Factors (cid:32) Quantity (cid:32) Installation (cid:32) Functionality (cid:32) Integration with the deck (cid:32) Maintenance (cid:32) Repair & refit (cid:32) ©Frazer-Nash ConsultancyLtd. All rights reserved. Confidential and proprietary document. Design achievements Tie-down distribution/layout Pot Protective (cid:32) Coating Reduction in quantity of 34% (cid:190) Functionality (cid:32) Designed to interface with MC2 lashing (cid:190) Installation (cid:32) Assembly and welding costs reduced by (cid:190) Cross Bar Cruciform nearly 1/2 Maintenance, repair & refit (cid:32) Advanced materials selection – Superduplex S/S + TSA Coating (cid:190) Minimise through life maintenance – cost saving 79% (cid:190) Minimise repair & refit – cost saving 52% (cid:190) ©Frazer-Nash ConsultancyLtd. All rights reserved. Confidential and proprietary document. Tie-down distribution/layout ©Frazer-Nash ConsultancyLtd. All rights reserved. Confidential and proprietary document. Functionality ©Frazer-Nash ConsultancyLtd. All rights reserved. Confidential and proprietary document. Installation ©Frazer-Nash ConsultancyLtd. All rights reserved. Confidential and proprietary document.

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