Rejected black recruits were often told that "this is a white man's war".
At most schools, white and black recruits don't interact.
The officials also say that the shortage of male black recruits seems tied to recruiting standards.
It seeks black recruits, but it has also cut back from 15,000 personnel to 9,000.
The drop in black recruits may be tied to the Army's increased focus on the college market, military officials say.
He made a study of the black question in the late 1940s, after the Party began to lose hundreds of black recruits.
A white instructor at Hammanskraal said black recruits needed more weapons training than whites, most of whom grew up around firearms.
There were no black recruits in the 1969 recruiting class.
A vast majority of black certified recruits came from other countries or through the teaching fellows program.
Many worried that black recruits might defy government authority.