Armed Forces Day Website
Description provided by #armedforceday #saluteourforces
The Naval hand salute is made with the palm of the hand inclined downwards. The reason for this is believed to have originated from the days of sail when sailors climbed the rigging of ships. Their hands would become dirty with tar.
Officers did not like their sailors showing dirty hands to them when saluting so the hand was inclined downwards to hide the tar from view.