29. Every flag officer, captain or other person subject to this Ordinance who, being in command of any of the naval ships, naval vessels or naval establishments-(a) fails to use his utmost exertions to bring into action any such ship, vessel or establishment which it is his duty to bring into action;(b) surrenders any such ship, vessel or establishment to the enemy when it is capable of being successfully defended or destroyed.(c) fails to pursue any enemy whom it is his duty to pursue, or to assist to the utmost of his ability any friend whom it is his duty to assist ; or(d) in the case of any action by or against the enemy, improperly withdraws from the action or from his station, or fails in his own person and according to his rank to encourage the persons under his command to fight courageously;shall be liable, if the offence is committed with intent to assist the enemy, to suffer death ; and in any other case to suffer long imprisonment.