Supply officer (Royal Navy) scheme (entering Britannia Royal Naval College (BRNC), Dartmouth, Devon, as a Cadet or Midshipman, under terms similar to those direct from civilian life) was open to those supply branch ratings under the age of about 25. Such ratings were called CW candidates, and they were specially reported on for selection to attend the Admiralty Interview Board before final selection for promotion and entry to BRNC. The second avenue of promotion from rating to commissioned officer was to the Special Duties (SD) List. Petty officers and chief petty officers could, with the approval of their commanding officer, become a CW candidate
Royal Naval College of Canada acted in the only manner possible to him. HMS D3 was sunk in error by French dirigible AT-9, which could not see D3's insignia because of the sub’s reflection off the waves, and took her to be a U-boat firing upon it. The French hadn't been informed that D3 was assigned to their waters in the English Channel and were not aware that British submarines were identifying themselves with rockets as opposed to flashing lights. Royal Naval College of Canada The Royal Naval College of Canada (RNCC) was established by the Department of the Naval Service after the formation of