An experimental scheme for JAT in the 1980's.  The JAT disc seems misaligned
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/130275500@N02">G B_NZ</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/130275500@N02/24004622312/">JAT 727-200 YU-AKG at LHR</a>