As discussed in the past, Mr. Braidwood, who was an explosives expert for the Royal Navy for 45-years and served as Lt. Cdr. and also as a lecturer in bomb disposal and associated topics, together with being highly decorated (OBE, Medals for Gallantry), identified an object in a naval video of the underwater car ramp deck by the bow visor, as being a device roughly 100mm by 100mm and placed on what appeared to be a magnet 200mm by 200m as a typical detonating device, much used by the Soviet bloc and from his own naval experiences. He states all that is need is to mould the plastic explosive (such as Semtex) into shape, apply a timer (of up to 24 hours) so that the device doesn't go off in your presence and he recognised this item in the video. It would be grossly irresponsible for Braidwood to actually describe how to make up such a device but he says this could be a commercial one made up of a liquid or powder, such as Fixor (note the 'X')- which is the only chemical he specifically names - or ready manufactured, for example, the military. He points out here is ready availability and easy access to make such a device. In fact, he recognised the image immediately because it is very similar to what the Royal Navy use.