Вот ссылка на атомные бомбы для него - предназначены для применеия с малыx высoт
http://nuclearweaponarchive.org/Usa/Weapons/B61.html
Designed for high-speed external carriage and low altitude delivery.
Currently the B61-11 is deployed for use with the stealthy B-2 bomber, which entered service in a nuclear role on 1 April 1997