(01) Delay in prosecuting the voyage contemplated by the Policy is excused (i) Where authorized by any special term in the Policy, or (ii) Where caused by circumstances beyond the control of the master and his employer, or (ii) Were reasonably necessary in order to comply with an express or implied warranty, or subject-matter insured, or (v) Where reasonably necessary for the purpose of obtaining medical or surgical aid for any person on board the ship, or (vi) Where caused by the barratrous conduct of the master or crew, if barratry be one of the perils insured against, (02) When the cause excusing the delay ceased to operate, the ship must resume her course, and prosecute her voyage with reasonable despatch.