{HEAD ~ A blade erection damper} for a folding propfan blade comprising {TAIL ~ a blade hammer} on the propfan blade engageable with a fluid filled frangible capsule to dampen erection of the blade 
{ HEAD ~ A blade erection damper } for a folding propfan blade comprising { TAIL ~ a blade hammer } on the propfan blade engageable with a fluid filled frangible capsule to dampen erection of the blade
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