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Special Projects Bureau: Mark 2 release mechanism
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Special Projects Bureau: Release mechanism components
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Special Projects Bureau: Plunger rod components
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Special Projects Bureau: Plunger rod assembly in place
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Special Projects Bureau: Fill valve
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Special Projects Bureau: Fill valve assembly attached to oxygen tube
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Special Projects Bureau: Fill valve in place in PVC tube
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Special Projects Bureau: Both ends sealed
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Special Projects Bureau: Tube inflated
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Special Projects Bureau: Leak test
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Special Projects Bureau: The plunger rod
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Special Projects Bureau: The finished Mark 2 release mechanism
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Special Projects Bureau: Plunger rod tidied up
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Special Projects Bureau: Release rod attached
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Special Projects Bureau: Wider view of Mk 2 release assembly
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Special Projects Bureau: The Vulture 1 release point
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Special Projects Bureau: Mechanism with 500-gramme test weight