Perhaps we quibble over the definition of kamikaze. It cannot be argued that the crew of the Hunley knew before going into battle that their chances of survival were slim. 13 of the 16 crewmen from the two test deployments did not survive. And those test deployments did not include a detonation of explosives. All 8 crewman from the final sinking were found in tact inside the Hunley. The Hunley had two hatches, however, each measured 16.5 X 21 inches. And an explosive black powder charge just a few feet in front of the prow. Now what could possibly have gone wrong with that! The mission was successful in that it's target, a Union gunboat, was sunk with the loss of 5 Union lives.