▁Arch itect s , ▁attract ed ▁ 3 8 ▁entries ▁and ▁one ▁of ▁these ▁was ▁selected ▁as ▁the ▁design ▁for ▁the ▁SA AF ▁mem orial . ▁ ▁Const ruction ▁of ▁the ▁Memorial ▁started ▁in ▁May ▁ 1 9 6 2 ▁and ▁Trans va al ▁Const ruction , ▁of ▁which ▁Mr ▁Hen k ▁Mu uren ▁was ▁the ▁principal ▁director , ▁achieved ▁a ▁good ▁standard ▁of ▁work , ▁in ▁spite ▁of ▁the ▁complex ities ▁of ▁the ▁rein for ced ▁concrete ▁structure . ▁Great ▁care ▁was ▁taken ▁to ▁use ▁as ▁much ▁local ▁material ▁such ▁as ▁Gran ite ▁from ▁N ama qu aland ▁and ▁St ink wood ▁from ▁Kn ys na . ▁Const ruction ▁was ▁completed ▁within ▁ 1 1 ▁months ▁at ▁a ▁cost ▁of ▁R 1 6 , 0 0 0 ▁for ▁the ▁rein for ced ▁foundation ▁and ▁R 5 7 , 0 0 0 ▁for ▁the ▁mem orial ▁itself . ▁The ▁construction ▁costs ▁were ▁partially ▁fund ed ▁by ▁don ations ▁from ▁British ▁A eros pace ▁Limited ▁and ▁the ▁Society ▁of ▁British ▁A ircraft ▁Const ru ctions ▁Limited . ▁ ▁The ▁shape ▁of ▁the ▁mem orial , ▁consisting ▁of ▁three ▁wings ▁that ▁cross ▁over ▁one ▁another , ▁is ▁intended ▁to ▁symbol ise ▁flight . ▁ ▁The ▁wings ▁each ▁cover ▁separate ▁rooms ▁that ▁house ▁a ▁chap el , ▁a ▁care t akers ▁office ▁and ▁a ▁machine ▁room . ▁ ▁The ▁hall ▁between ▁the ▁wings ▁houses ▁a ▁c en ot aph ▁as ▁the ▁cent rep ie ce ▁of ▁the ▁mem orial ▁and ▁the ▁roll s ▁of ▁honour .