{HEAD ~ The rotor blade} of this invention has a tip to tip flex beam spar and torsionally stiff hollow blades bonded to the spar throughout the tip most portion of {TAIL ~ the blades} 
{ HEAD ~ The rotor blade } of this invention has a tip to tip flex beam spar and torsionally stiff hollow blades bonded to the spar throughout the tip most portion of { TAIL ~ the blades }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL