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A-3 Skywarrior aircraft oxygen mask variants.

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I am looking for information on the oxygen mask configurations used with the Douglas A-3 Skywarrior aircraft. I would like to know

if the following variants of the Skywarrior used the MC-3A hose end connector or used the face or chest mounted miniregulator:


-A-3B (may have used both).


-EA-3A (not EA-3B).


It appears that the SP-1A seat pan used the MC-3A masks and the Douglas Seat Pan (SKU-1/A) used the miniregulator masks.

I would be thankful for any help.

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On these photos, it's appears that the miniregulator with REDAR hose was in use.







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