May 15 (UPI) -- The Japanese Air Self-Defense Force agency continued its search Thursday for two crew members and their plane that crashed Wednesday somewhere in the country's Aichi Prefecture. The T-4 training aircraft involved had reportedly only been airborne for two minutes after it departed Komaki Air Base for Nyutabaru Air Base in Japan's Miyazaki Prefecture when it disappeared from radar, as per Air Self-Defense Force officials, who also say that no emergency signals of any kind had been