tonycretan Posted December 6, 2016 Share #1 Posted December 6, 2016 My most recent purchase, this helmet came with the helmet bag and the slide rule. Link to comment Share on other sites More sharing options...
tonycretan Posted December 6, 2016 Author Share #2 Posted December 6, 2016 Two more pics Link to comment Share on other sites More sharing options...
tonycretan Posted December 6, 2016 Author Share #3 Posted December 6, 2016 The slide rule, dated 1973. Link to comment Share on other sites More sharing options...
northcoastaero Posted December 6, 2016 Share #4 Posted December 6, 2016 Nice items. The flight helmet bag has USN NFO wings on it and looking at the slide rule, I would guess that the items belonged to a Tactical Coordinator (TACCO) or navigator aboard a Lockheed P-3 Orion aircraft. The helmet shell could be the PRK-37/P in the HGU-47(v)4/P configuration. http://vpnavy.org/vp4.html Link to comment Share on other sites More sharing options...
tonycretan Posted December 6, 2016 Author Share #5 Posted December 6, 2016 Nice items. The flight helmet bag has USN NFO wings on it and looking at the slide rule, I would guess that the items belonged to a Tactical Coordinator (TACCO) or navigator aboard a Lockheed P-3 Orion aircraft. The helmet shell could be the PRK-37/P in the HGU-47(v)4/P configuration. http://vpnavy.org/vp4.html This is the label found on the helmet shell. Link to comment Share on other sites More sharing options...
northcoastaero Posted December 6, 2016 Share #6 Posted December 6, 2016 PRK-40/P is the designation for the styrofoam liner with foam/leather fitting pads. Is there a nape strap on the helmet shell? The contract year is 1980 and made by Gentex (97427 mfr code). Hope this helps. Link to comment Share on other sites More sharing options...
tonycretan Posted December 6, 2016 Author Share #7 Posted December 6, 2016 PRK-40/P is the designation for the styrofoam liner with foam/leather fitting pads. Is there a nape strap on the helmet shell? The contract year is 1980 and made by Gentex (97427 mfr code). Hope this helps. The helmet has a nape strap. Link to comment Share on other sites More sharing options...
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