After choosing up their hundreds and carrying them underneath in Primarily intended cargo slings, the helicopters began the small vacation to Khe Sanh flying on instruments and then letting down by way of a gap while in the cloud protect. M?i hình th?c ?ánh s? ??u có các quy ??nh và cách tính toán riêng, giúp ng??i ch?i có th? ho?t ??ng