Diamond 9: The Red Arrows flew nine aircraft in displays from time to time from mid-1966 onwards, but it was not until 1968 that the Team was officially increased in size to nine. Although there was nothing new in flying nine aircraft in a diamond-shaped formation, the Red Arrows’ perfectly symmetrical Diamond Nine quickly came to represent the peak of precision flying and it was eventually registered as an official trade mark.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/48215073@N00">Santosh Puthran</a>
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/talk2santosh/9662285268/">Red Arrows Bournemouth Airshow 2013</a>