In this aerial photo taken from a maritime patrol aircraft of 800 Air Squadron of the 2nd Air Wing of Naval Aviation Center (PUSPENERBAL), the Indonesian Navy submarine KRI Alugoro sails during a search for KRI Nanggala, another submarine that went missing while participating in a training exercise on Wednesday, in the waters off Bali Island, Indonesia, Thursday, April 22, 2021. - AP JAKARTA, April 24 (Bloomberg): The Indonesian navy’s missing submarine may have been too old and overloaded when it embarked on a military exercise on Wednesday, according to a defense analyst. The KRI Nanggala-402 that disappeared in waters off Bali island was carrying 53 crew during training, Indonesia’s defense ministry said. A submarine of that class has a maximum capacity of 40, according to Ridzwan Rahmat, principle defense analyst at Janes.