<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">aviator&apos;s helmets</topic></authority><related type="other"><topic>aviators</topic></related><related type="broader"><topic>helmets</topic></related><variant type="other"><topic>aviator&apos;s helmet</topic></variant> <note xml:lang="en"><![CDATA[ Casques intended for the protection of those flying aircraft. These were initially made of leather, were fitted to the head and had earflaps that were connected via a chin strap. Some were lined with fleecy material. More historically recent models are made from a variety of materials including fiberglass and plastic, and are more typically formed into a round dome encasing the entire head of the wearer. ]]></note></mads>