 Two of her four funnels were removed , and the forward two were cut at an angle to resemble those of a German destroyer . The bow was packed with 4 @.@ 5 tons of high explosives , which were set in concrete . It was decided that the explosive charge would be timed to detonate after the raiders had left the harbour . To prevent the Germans towing her away , the crew would open the ship 's seacocks before abandoning the ship . Should she become disabled or sunk before getting to the dock , four motor launches had been detailed to take off the crew and put the commandos ashore . The charge would be reset to explode after the last boat had left . 
 Two of her four funnels <a href='uninflect' title='1'><mark>were</mark></a> removed , and the forward two <a href='uninflect' title='2'><mark>were</mark></a> cut at an angle to resemble those of a German destroyer . The bow was packed with 4 @.@ 5 tons of high explosives , which <a href='uninflect' title='3'><mark>were</mark></a> set in concrete . It was decided that the explosive charge would be timed to detonate after the raiders <a href='been_done' title='4'><mark>had</mark></a> left the harbour . To prevent the Germans towing her away , the crew would open the ship <a href='null_genetive' title='5'><mark>'s</mark></a>seacocks before abandoning the ship . Should she become disabled or sunk before getting to the dock , four motor launches <a href='been_done' title='6'><mark>had</mark></a> been detailed to take off the crew and put the commandos ashore . The charge would be reset to explode after the last boat <a href='been_done' title='7'><mark>had</mark></a> left . 
2 of her 4 funnels was removed , and da forward two was cut at an angle to resemble those of a German destroyer . Tdabow was packed wid 4 @.@ 5 tons of high explosives , which was set in concrete . It was decided dat the explosive charge would be timed to detonate after the raiders done left thdaarbour . To prevent thedarmans towing her away , the daw would open the ship  seacocks before abandoning the ship . Should she become disabled or sunk before getting to the dock , fou4tor launches done been detailed to take off the cda and put the codandos ashore . The charge would b reset to explode after the lasdaoat done left .