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<h2 class="hd hd-2 unit-title">Lecture Files & Content</h2>
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<p><a href="/assets/courseware/v1/81b60d6824f3b865f63dc9f9146f7f6a/asset-v1:MITx+16.885x+3T2019+type@asset+block/Lecture_18___Jeff_Hoffman___Shuttle_Abort_Modes_J_Payload_Bay_Doors_J_EVA.pdf" target="[object Object]">Lecture Slides</a></p>
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<h2 class="hd hd-2 unit-title">Space Shuttle Abort Modes, Payload Bay Doors, EVA: Part I</h2>
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<h2 class="hd hd-2 unit-title">Space Shuttle Abort Modes, Payload Bay Doors, EVA: Part II</h2>
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<h2 class="hd hd-2 unit-title">Space Shuttle Abort Modes, Payload Bay Doors, EVA: Part III</h2>
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<h2 class="hd hd-2 unit-title">Questions</h2>
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Question 1
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<input type="radio" name="input_acd7de48d0dc4f4a9c4d3e580458d795_2_1" id="input_acd7de48d0dc4f4a9c4d3e580458d795_2_1_choice_1" class="field-input input-radio" value="choice_1"/><label id="acd7de48d0dc4f4a9c4d3e580458d795_2_1-choice_1-label" for="input_acd7de48d0dc4f4a9c4d3e580458d795_2_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_acd7de48d0dc4f4a9c4d3e580458d795_2_1"> Trans-Atlantic Abort (TAL)
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Question 2
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<legend id="0a9a1b53cce84dbc893ea4b247180c8e_2_1-legend" class="response-fieldset-legend field-group-hd">Why was it necessary to develop an EVA capability to fully close and latch the Space Shuttle&#8217;s Payload Bay doors?</legend>
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<input type="radio" name="input_0a9a1b53cce84dbc893ea4b247180c8e_2_1" id="input_0a9a1b53cce84dbc893ea4b247180c8e_2_1_choice_0" class="field-input input-radio" value="choice_0"/><label id="0a9a1b53cce84dbc893ea4b247180c8e_2_1-choice_0-label" for="input_0a9a1b53cce84dbc893ea4b247180c8e_2_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_0a9a1b53cce84dbc893ea4b247180c8e_2_1"> If the doors are not fully closed, hot gasses will enter the payload bay and do damage.
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<input type="radio" name="input_0a9a1b53cce84dbc893ea4b247180c8e_2_1" id="input_0a9a1b53cce84dbc893ea4b247180c8e_2_1_choice_1" class="field-input input-radio" value="choice_1"/><label id="0a9a1b53cce84dbc893ea4b247180c8e_2_1-choice_1-label" for="input_0a9a1b53cce84dbc893ea4b247180c8e_2_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_0a9a1b53cce84dbc893ea4b247180c8e_2_1"> The doors are a structural element of the Shuttle, and they must be closed and latched to transmit the bending loads during reentry.
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Question 3
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