ft , ▁the ▁fus el age ▁is ▁flat - s ided , ▁with ▁the ▁unders ide ▁rising ▁towards ▁the ▁tail . ▁ ▁The ▁rect angular ▁tail plane ▁and ▁elev ators , ▁which ▁use ▁a ▁conventional ▁air fo il ▁unlike ▁that ▁of ▁the ▁Z en ith , ▁are ▁set ▁at ▁the ▁top ▁of ▁the ▁fus el age , ▁with ▁the ▁rud der ▁running ▁between ▁the ▁elev ators ▁to ▁the ▁ke el . ▁ ▁Fin ▁and ▁rud der ▁are ▁straight - t aper ed ▁and ▁slightly ▁swe pt . ▁The ▁I CP ▁factory ▁may ▁supply ▁a ▁rud der ▁extension ▁as ▁an ▁optional ▁extra . ▁ ▁Z en ith ▁S TO L ▁CH ▁ 7 0 1 ▁designer ▁Chris ▁He int z ▁cons iders ▁the ▁Sav ann ah ▁an ▁una ut hor ized ▁copy ▁of ▁his ▁design . ▁Despite ▁this , ▁I CP ▁and ▁Z en air ▁began ▁a ▁partners hip ▁in ▁ 2 0 1 2 ▁where by ▁I CP ▁assemb les ▁the ▁ready - to - fly ▁version ▁of ▁the ▁low ▁wing ▁Z en air ▁ 6 5 0 E i , ▁an ▁evolution ▁of ▁the ▁A MD ▁Z od iac , ▁for ▁the ▁European ▁market . ▁ ▁Oper ational ▁history ▁Sales , ▁beginning ▁around ▁ 2 0 0 0 , ▁had ▁by ▁ 2 0 1 0 ▁reached ▁ 6 5 0 ▁aircraft ▁or ▁k its . ▁ ▁As ▁of ▁mid - 2 0 1 0 ▁there ▁have ▁been ▁about ▁ 5 1 3 ▁Sav ann ah s ▁and ▁B ing os ▁on