{HEAD ~ The spar} includes a female receptacle that receives {TAIL ~ a male blade} from the closeout skin assembly 
{ HEAD ~ The spar } includes a female receptacle that receives { TAIL ~ a male blade } from the closeout skin assembly
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH