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EVA 104 provides an introduction to EVA space suit test and evaluation methods. Students learn fundamentals of EVA space suit operations and then use the tools and procedures developed in the OTTER EVA 102 or EVA 103 courses. IIAS’s EVA space suit will be tested and validated in a gravity-offset laboratory environment that can simulate microgravity, lunar, or martian gravity environments. Prerequisites: EVA 101 and (EVA 102 or EVA 103)

Overview:
EVA 104 provides an introduction to EVA space suit test and evaluation methods in partnership with Final Frontier Design. Students learn fundamentals of EVA space suit operations and then use the tools and procedures developed in the OTTER EVA 102 or EVA 103 courses. The EVA space suit will be tested and validated in a gravity-offset laboratory environment that can simulate microgravity, lunar, or martian gravity environments.

Course Objectives:
EVA 104 extends upon the introductory life support system curriculum presented in EVA 101 to include specific EVA space suit systems and test and validation procedures. The course covers a historical analysis of specific US and Russian EVA space suit development programs, EVA space suit systems, laboratory test protocols, terminology and etiquette, EVA space suit test development, and design drivers of future EVA space suit systems. Students will be responsible to develop testing procedures based on tools and procedures developed in EVA 102 (Space Medicine), EVA 103 (Planetary Field Geology ), or for microgravity operations.

Curriculum:
Week 1. EVA space suit introduction
Week 2. Historical analysis of Russian EVA Space Suits
Week 3. Historical analysis of US EVA Space Suits
Week 4. EVA Space Suit Systems: LCG system, chest control board, communications, and lighting.
Week 5. EVA Space Suit Systems: diagnostics and repair, biomonitoring systems, suit maintenance
Week 6: MCC Operations, etiquette and terminology, test roles and responsibilities
Week 7: EVA Testing Procedure Development, Airlocks and Airlock Procedures
Week 8: Future of EVA space suit development
Week 9: Briefings of EVA test procedures

EVA Space Suit Evaluation Program:
Day 1: EVA space suit donning, Assisting donning of EVA space suits. Chest control board operations, cooling, communication and lighting system operations. Introduction to gravity offset systems (Lunar, Martian, and microgravity operations).
Day 2-4: Surface EVA Evaluation, lunar and Martian gravity (scooper, drill, hammer, soil sampler, spectrometer, remote rover operations). Microgravity operations (drill and ‘Task Board 3’ panel removal and maintenance, hatch operations, camera mounting and operation, translation using handrails and carabiners). MCC operations, medical monitoring, and gravity offset system operations. Comparative evaluation of finger, hand, and upper body strength in unsuited, suited and unpressurized, and suited and pressurized environments.

Textbooks:
U.S. Spacesuits, Kenneth Thomas and Harold McMann, Springer, 2nd ed. (2012)
Russian Spacesuits, Issac Abramov et al., Springer, (2003)

Prerequisites: AST 101, EVA 102 OR EVA 103, EVA 101 (or equivalent)

2025 International Institute for Astronautical Sciences. All Rights Reserved

2 STUDENTS ENROLLED

    2022 Course Schedule

    march

    27mar(mar 27)8:00 am31(mar 31)5:00 pmAST 101: Fundamentals of Astronautics Class 2501

    31mar(mar 31)8:00 am04apr(apr 4)5:00 pmAST 101: Advanced PoSSUM Academy - Red Sprite Group (Spring 2025)

    april

    03apr(apr 3)8:00 am07(apr 7)5:00 pmAST 101: Fundamentals of Astronautics Class 2502

    june

    05jun(jun 5)8:00 am08(jun 8)3:00 pmEVA 103 Planetary Field Geology Field Campaign (2025)Field campaign in planetary field geology including EVA tool evaluation. (Online classes start Summer Semester)

    october

    13oct(oct 13)8:00 am17(oct 17)5:00 pmFeaturedAST 102 Microgravity Research Campaign (2025)Microgravity Research Campaign supporting the IIAS AST 102 Program (Online class start in May)

    17oct(oct 17)8:00 am21(oct 21)5:00 pmFeaturedOPS 102 Spacecraft Egress and Post-Landing Operations On-Site (2025)Spacecraft egress, space suit ejection, and sea survial training to complement OPS 102 post-landing human space flight instruction.

    22oct(oct 22)8:00 am25(oct 25)1:00 pmEVA 105 Fundamentals of Underwater EVA Operations Campaign (2025)On-Site compliment to EVA 105 using analog training space suits and IIAS NBL facility

    30oct(oct 30)8:00 am03nov(nov 3)5:00 pmAST 101: Fundamentals of Astronautics Class 2503

    november

    03nov(nov 3)8:00 am07(nov 7)5:00 pmAST 101: Advanced PoSSUM Academy - Blue Jet Group (Fall 2025)

    06nov(nov 6)8:00 am10(nov 10)5:00 pmAST 101: Fundamentals of Astronautics Class 2504

    13nov(nov 13)8:00 am16(nov 16)5:00 pmFeaturedEVA 104 Gravity-Offset EVA Space Suit Evaluation Campaign (2025)Gravity-offset research campaign to evaluate an EVA space suit by applying the tools and techniques developed through EVA 102 and EVA 103 courses

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