Page 80 - Marutas of Unit 731

“Ni Bomb—e 50 kg Ni bomb was of the same general design as the Ha

bomb. e bomb body was about 100 millimeters longer, and it had a

payload capacity of 1 liter. e explosive charge, however, was only 50

percent of that used in the Ha bomb. Due to the smaller explosive charge,

bacterial sur vival was greater, but the penet rating force of the bomb

fragments and area of dispersion was not as great. Results from tests of the
bomb in 1939 were considered to be ‘rather good,’ and the bomb was

deemed worthy of further development.”