It was last assigned to the 93d Operations Group, stationed at Castle AFB, California.

Castle AFB, California, 26 June 1949 - 16 June 1951.

On 26 June 1949, the unit was transferred to Castle AFB, California.

While at Castle AFB, 005's nickname was known as "Balls 5", went through the conversion to a full bomber.

Castle AFB) in 2005.

However, the 93d continued to supervise the closure of Castle AFB.

Five B-52Bs took off from Castle AFB to participate in the record attempt.

In 1970, he completed B-52 bomber training course at Castle AFB, CA.

The latter aircraft actually served at Castle AFB during 1960 and ended its Air Force career in 1976.

Upon its return to Castle AFB in 1951, the group was re-equipped with B-50s.