IWM caption : Looking forward from the bridge of the <a href="https://en.wikipedia.org/wiki/HMS_Nelson_(28)" class="extiw" title="en:HMS Nelson (28)">NELSON</a>. On top of the <a href="https://en.wikipedia.org/wiki/BL_16_inch_Mk_I_naval_gun" class="extiw" title="en:BL 16 inch Mk I naval gun">16" turrets</a> can be seen the UP's.<br><p>Comment : UP = <a href="https://en.wikipedia.org/wiki/Unrotated_Projectile" class="extiw" title="en:Unrotated Projectile">Unrotated Projectile</a>, an ant-aircraft rocket trialled unsuccessfully in the early stages of World War II.<br>
See also :
</p>
<ul><li><a href="//commons.wikimedia.org/wiki/File:16_inch_gun_turrets_and_Unrotated_Projectile_launchers_on_HMS_Nelson_1940_IWM_A_1995.jpg" title="File:16 inch gun turrets and Unrotated Projectile launchers on HMS Nelson 1940 IWM A 1995.jpg">File:16 inch gun turrets and Unrotated Projectile launchers on HMS Nelson 1940 IWM A 1995.jpg</a></li></ul>
Coote, R G G (Lt)
<div class="center centered" style="width:auto;">
<table style="width:100%; border:1px solid black; background:#E0E0E0; padding:0; text-align:center;"><tbody><tr><td align="left"><img alt="IWMLondonThumbnail.jpg" src="https://upload.wikimedia.org/wikipedia/commons/c/c3/IWMLondonThumbnail.jpg" decoding="async" width="80" height="54" data-file-width="80" data-file-height="54"></td>
<td>This photograph <a rel="nofollow" class="external text" href="https://www.iwm.org.uk/collections/search?query=A+1994">A 1994</a> comes from the collections of the <a rel="nofollow" class="external text" href="https://www.iwm.org.uk/">Imperial War Museums</a>.
</td>
<td align="right"><img alt="Flag of the United Kingdom (3-5).svg" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/83/Flag_of_the_United_Kingdom_%283-5%29.svg/80px-Flag_of_the_United_Kingdom_%283-5%29.svg.png" decoding="async" width="80" height="48" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/83/Flag_of_the_United_Kingdom_%283-5%29.svg/120px-Flag_of_the_United_Kingdom_%283-5%29.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/8/83/Flag_of_the_United_Kingdom_%283-5%29.svg/160px-Flag_of_the_United_Kingdom_%283-5%29.svg.png 2x" data-file-width="177" data-file-height="106"></td></tr></tbody></table></div>