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Author Topic:   Thickness of Apollo spacesuit A7L bubble helmet gspaceman New Member Posts: From: Registered: posted 07-11-2013 08:36 AM                Does anyone know what the thickness of the "bubble" helmet is? I'm assuming it was vacuum formed since it is poly-carbonate, so would the thickness be somewhat varied throughout the helmet? Spacehardware Member Posts: 125 From: Durley Registered: Jan 2008 posted 07-15-2013 05:26 AM                Yes, you're right - the polycarbonate varies by about 1mm - thicker on the sides than on the front and back where it is more formed. Min. thickness 4.47mm, average max.at the sides 5.5mm. Hope this helps!

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