<p>Why do the pilots wear anti-g suits?
</p>
The anti-‘g’ suit is an elasticised garment which fits tightly over the lower abdomen and legs and fastens with laces and zips. Attached to the suit is a hose-pipe which feeds pressurised air into a large number of tubes within the suit. When an aircraft pulls 'g', the pilot's blood is forced downwards away from the heart and towards the feet so starving the brain. All pilots learn how to control this by tensing the stomach muscles but it is a physically tiring procedure. If the pilot relaxed his stomach muscles under high ‘g’ conditions, all his blood would rapidly rush away from his brain and he would black-out. When the pilot is wearing an anti-g suit, pressurised air proportional to the g force rushes into the tubes and compresses the pilot’s abdomen and legs, thus saving the pilot considerable physical effort. Without the help of an anti-‘g’ suit the pilots would rapidly get tired and might even black out.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/48215073@N00">Santosh Puthran</a>
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/talk2santosh/9662291116/">Red Arrows Bournemouth Airshow 2013</a>