Sopwith 'T machines' dropping torpedos. From a series of photos of the attack taking place and the subsequent analysis of torpedo tracks.

Heating mat and associated equipment under a Sopwith T.1.

Climbing away after a 16ft drop of a torpedo.

Specially heated troughs/loading cradles were used to load the torpedos.

Hangar deck of HMS 'Argus' showing stowed Sopwith T.1s.

RNAS East Fortune's Christmas card showing the weapon and the objective.