▁African ▁Americans ▁spend ▁excess ive ▁amount ▁of ▁time ▁por ch ▁sitting . ▁ ▁In ▁the ▁film ▁Friday , ▁the ▁main ▁characters ▁spend ▁most ▁of ▁their ▁day ▁por ch ▁sitting . ▁ ▁Foot notes ▁ ▁External ▁links ▁ ▁Bibli ography ▁ ▁This ▁edition ▁includes ▁a ▁new ▁for ew ord ▁written ▁by ▁the ▁author . ▁ ▁Category : American ▁culture <0x0A> </s> ▁The ▁Gi ant ▁Vi per ▁is ▁a ▁tra iler - mount ed , ▁vehicle - p ul led , ▁mine ▁clear ance ▁system , ▁designed ▁to ▁be ▁deployed ▁in ▁areas ▁containing ▁land ▁mines . ▁It ▁was ▁developed ▁for ▁the ▁British ▁Army ▁in ▁the ▁ 1 9 5 0 s . ▁It ▁was ▁designed ▁to ▁be ▁to wed ▁behind ▁a ▁Cent ur ion ▁gun ▁tank , ▁F V 4 0 0 3 , ▁AV RE ▁( Arm oured ▁Ve h icle ▁Royal ▁Engine ers ); ▁and ▁also ▁the ▁F V 4 3 2 ▁Arm oured ▁personnel ▁car rier . ▁ ▁The ▁Gi ant ▁Vi per ▁uses ▁rock ets ▁to ▁launch ▁a ▁ 2 5 0 - met re - long ▁h ose , ▁pack ed ▁with ▁pl astic ▁explos ive , ▁across ▁a ▁mine field . ▁The ▁Gi ant ▁Vi per ▁h oses ▁were ▁filled , ▁in ▁the ▁ 1 9 7 0 s , ▁at ▁the ▁Royal ▁Or dn ance ▁Factory , ▁R OF ▁Chor ley . ▁ ▁Once ▁fallen ▁the ▁charge ▁is ▁det on ated , ▁clear ing ▁a ▁six - met re - wide ▁path ▁through ▁anti - person nel ▁or