Fifty percent of the aircraft were from the RAF , and 36 % of the total force was South African .
Sixty - nine South Africans were killed and twenty - five SAAF Liberators were shot down .
Fifty percent of the aircraft were from the RAF , and 36 % of the total force was South Africans   .
Sixty - nine South Africans were killed and twenty - five SAAF Liberators were shot down .