1. Reproduction interdite © ALMA EUROPEAN CONSORTIUM Reproduction forbidden Design, Manufacture, Transport and Integration in Chile of ALMA Antennas Page 1 Design, Manufacture, Transport and Integration on-site in Chile of ALMA Antennas Progress Meeting # 3 Alcatel Alenia Space / TORINO DESIGN CONCEPT PHASE Dated April 5 th, 2006

2. Reproduction interdite © ALMA EUROPEAN CONSORTIUM Reproduction forbidden Design, Manufacture, Transport and Integration in Chile of ALMA Antennas Page 2 DEC JAN FEB MAR APR MAY JUNE JULY AUG SEP OCT NOV DEC JAN 2006 PPDR K.O. Antenna Detailed Concept Design Definition Antenna Detailed Design PPDR D.P System Analysis & Budgets

3. Reproduction interdite © ALMA EUROPEAN CONSORTIUM Reproduction forbidden Design, Manufacture, Transport and Integration in Chile of ALMA Antennas Page 3 t Introduction to the Design Concept  AEM at the KOM presented an operating plan, regarding all the phases of ENGINEERING & DESIGN subdivided in 4 main sections:  T1 - Detailed Conceptual Design Definition  T2 - Freezing of Design & Industrial Processes  T3 - Finalization of all Construction Dwgs & Manufacturing Documentation  T4 - Preparation of all Construction & Workshop Dwgs and all Documentation for Production

4. Reproduction interdite © ALMA EUROPEAN CONSORTIUM Reproduction forbidden Design, Manufacture, Transport and Integration in Chile of ALMA Antennas Page 4 DEC JAN FEB MAR APR MAY JUNE JULY AUG SEP OCT NOV DEC JAN 2006 Antenna Design updating Antenna Detailed Design PPDR K.O. PPDR Data Pack. CDR T1T1 T2T2 T3T3 T4T4

5. Reproduction interdite © ALMA EUROPEAN CONSORTIUM Reproduction forbidden Design, Manufacture, Transport and Integration in Chile of ALMA Antennas Page 5  Detailed schedule and milestones for Design & Engineering activities KOM T 1 = Detailed Concept Design Definition Main Spec.s General Dwg.s for Pre-Industrialization T 2 = Freezing of Design & Qualification Results Suppliers & Industrial Processes Definitions T 3 = CDR AEM Critical Design Review T 4 = PPDR Data Package Documentation Delivery T 5 = PPDR Review Meeting T 6 = Closure of PPDR T 7 = AIPC1 Documentation Delivery T 8 = Support of Manufacturing & Integration Activities +3m +AIPC1 +1m +3m +1m +2m +AIPC# 6m …….. 31.5m 12m 13m 11m9m 3m

6. Reproduction interdite © ALMA EUROPEAN CONSORTIUM Reproduction forbidden Design, Manufacture, Transport and Integration in Chile of ALMA Antennas Page 6 END of PHASE T1: Detailed Concept Design Definition OBJECTIVE:  Identify an Antenna Concept able to satisfy the main Requirements of the Specifications (geometrical, functional, etc…),  production of the basic documentation and distribution of the knowledge inside the Consortium  to guarantee the manufacturing and erection process of the antenna

7. Reproduction interdite © ALMA EUROPEAN CONSORTIUM Reproduction forbidden Design, Manufacture, Transport and Integration in Chile of ALMA Antennas Page 7 END of PHASE T1: Detailed Concept Design Definition MODALITY:  Development of drawings activities, modellization, analysis and calculation to support the solutions adopted.  INPUTS:  contract documentation  knowledge of Prototype  OUTPUTS:  main specifications  Assembly and interface drawings

8. Reproduction interdite © ALMA EUROPEAN CONSORTIUM Reproduction forbidden Design, Manufacture, Transport and Integration in Chile of ALMA Antennas Page 8 tT1 - technical documentation supporting this phase From KOM (19-20 Dec ‘05) to T 1 (13-14 Mar ‘06 ) General Design Assumption: General Design Assumption: Finite Element Analysis: Error Budget Calculations: System Engineering Activities: - General Layout & Dimensions - Design Optimisation for Production - Global FEM Model - Preliminary Engineering Calculations - Static & Dynamic Analysis - Survival Conditions Load Cases - Wind & Thermal Analysis - Surface Accuracy - Absolute non reapeatable pointing error - Offset non reapeatable pointing error - Absolute reapeatable pointing error - Offset reapeatable pointing error - Non reapeatable residual delay - Reapeatable residual delay - Mass & Balance Budget - Dynamic Servo Simulation - Lifetime, RAMS Analysis - EMC Plan Detailed Concept Design Definition Main Spec.s General Dwg.s for Pre-Industrialization

9. Reproduction interdite © ALMA EUROPEAN CONSORTIUM Reproduction forbidden Design, Manufacture, Transport and Integration in Chile of ALMA Antennas Page 9 tT1 - technical documentation supporting this phase Main Spec.s General

10. Reproduction interdite © ALMA EUROPEAN CONSORTIUM Reproduction forbidden Design, Manufacture, Transport and Integration in Chile of ALMA Antennas Page 10 tT1 - technical documentation supporting this phase Dwg.s for Pre-Industrialization

11. Reproduction interdite © ALMA EUROPEAN CONSORTIUM Reproduction forbidden Design, Manufacture, Transport and Integration in Chile of ALMA Antennas Page 11 tT1 - technical documentation supporting this phase Dwg.s for Pre-Industrialization

12. Reproduction interdite © ALMA EUROPEAN CONSORTIUM Reproduction forbidden Design, Manufacture, Transport and Integration in Chile of ALMA Antennas Page 12 tT1 - technical documentation supporting this phase Dwg.s for Pre-Industrialization

13. Reproduction interdite © ALMA EUROPEAN CONSORTIUM Reproduction forbidden Design, Manufacture, Transport and Integration in Chile of ALMA Antennas Page 13 tT1 - technical documentation supporting this phase Dwg.s for Pre-Industrialization

14. Reproduction interdite © ALMA EUROPEAN CONSORTIUM Reproduction forbidden Design, Manufacture, Transport and Integration in Chile of ALMA Antennas Page 14 tT2 - Freezing of Design & Industrial Processes From T 1 (13-14 Mar ‘06 ) to T 2 (12-13 Jun ‘06 ) Freezing of Design & Freezing of Design & Qualification: Suppliers & Industrial Processes Definitions - Detailed cross-check off all Requirements from Spec.s, Manufacturing Processes & Qualification Program - Start of all qualification tests of all major items - Identification of all main suppliers and relative products - Definition of all main manufacturing processes Scope of this phase is to acquire into the design of the main components the informations coming from the manufacturer and partners, for the production and industrialization.

15. Reproduction interdite © ALMA EUROPEAN CONSORTIUM Reproduction forbidden Design, Manufacture, Transport and Integration in Chile of ALMA Antennas Page 15 Start and Organization of Phase T2 FROM DEFINED CONCEPT TO CONSOLIDATED DESIGN CROSS-CHECK OF ALL SPECIFICATION REQUIREMENTS CROSS-CHECK WITH MANUFACTURING PROCESSES DATA FROM QUALIFICATION REPORTS SPECIFIC REQUIREMENTS SYSTEM REQUIREMENTS ICD REQUIREMENTS DATA SHEETS OF COMPONENTS CONSTRUCTION REQUIREMENTS ASSEMBLY REQUIREMENTS PACKING & TRANSPORT REQUIREMENTS TESTS ON COMPONENTS TESTS ON SUB-SYSTEMS FROM VERIFICATION PLAN FROM SUB-SUPPLIERS AND PARTNERS FROM QUALIFICATION PROGRAM

16. Reproduction interdite © ALMA EUROPEAN CONSORTIUM Reproduction forbidden Design, Manufacture, Transport and Integration in Chile of ALMA Antennas Page 16 tT3 - Finalization of all Construction Dwgs & Manufacturing Documentation From T 2 (12-13 Jun ‘06 ) to T 3 (14-15 Sep ‘06 ) CDR CDR - Verification by compliance matrix of all performancies - Finalization of all construction drawins and manufacturing documentations (critical items) -Freezing af all the interfaces between AEM/Supplier and ALMA The purpose of this part of the design phase is to develop all the activities of calculation, analysis and design, that may guaranty the total overview of the performances specification and meet the entire manufacturing process (from manufacturing to integration on site) A specific internal review (CDR) will be performed at the and of this phase with the ESO presence

17. Reproduction interdite © ALMA EUROPEAN CONSORTIUM Reproduction forbidden Design, Manufacture, Transport and Integration in Chile of ALMA Antennas Page 17  Detailed schedule and milestones for Design & Engineering activities From T 3 (14-15 Sep ‘06 ) to T 4 (13 Nov ‘06 ) PPDR Data Package PPDR Data Package - Finite Element Analysis (DRD-23) - Error Budget Computations (DRD-21) - Mass and Balance Budget (DRD-24) - Dynamic servo simulation analysis for fast switching and other dynamical performances of the antenna. (DRD-23) - HVAC system calculations (DRD-22) - Lifetime, reliability and maintainability analyses (DRD-25) - EMC Control Plan (DRD-32) - Engineering analysis and reports not specifically mentioned here, if necessary (DRD-22) - Preparation of spare parts list. The spare part list shall be the update of the spare part list provided in the Bid phase, and adapted to take into account the results of the reliability requirements and calculations (DRD-35). - Drawings On the Base of the review performed in previous period, during this Design Phase will be made all the construction and workshop drawings and documents to support all the production Phase and all the required documentation of the PPDR.

18. Reproduction interdite © ALMA EUROPEAN CONSORTIUM Reproduction forbidden Design, Manufacture, Transport and Integration in Chile of ALMA Antennas Page 18  Detailed schedule and milestones for Design & Engineering activities From T 4 (13 Nov ‘06 ) to T 5 (12-13 Dec ‘06 ) PPDR Review Meeting PPDR Review Meeting This task represents the moment for the verification of the entire design at all levels from antenna system to antenna components Complete design review of the antenna

19. Reproduction interdite © ALMA EUROPEAN CONSORTIUM Reproduction forbidden Design, Manufacture, Transport and Integration in Chile of ALMA Antennas Page 19  Documentation delivery to ESO:  END of T3 - Critical Design Review (CDR): no contractual ( cfr MoM of ALMA KOM)  END of T4 - Pre-Production Design Review (PPDR): contractual Both phases need specific meetings with ESO for review with prior delivery of documentation on due date  AEM confirms its strong willingness to offer the relevant visibility to ESO along the ALMA Project.