▁construction . ▁The ▁large ▁a iler ons ▁were ▁installed ▁only ▁on ▁the ▁upper ▁wing ▁and ▁were ▁inter connected , ▁unlike ▁some ▁earlier ▁Far man ▁designs ▁with ▁single ▁acting ▁a iler ons ▁that ▁hung ▁down ▁with ▁the ▁aircraft ▁at ▁rest . ▁Using ▁the ▁same ▁tri angular ▁emp enn age ▁support ▁structure ▁as ▁the ▁H F . 6 , ▁the ▁new ▁aircraft ▁had ▁a ▁more ▁stream lined ▁horizontal ▁stabil izer ▁and ▁an ▁o val ▁rud der . ▁This ▁set ▁up ▁was ▁used ▁by ▁Far man ▁in ▁many ▁of ▁his ▁later ▁designs . ▁ ▁When ▁fitted ▁out ▁as ▁a ▁float plane ▁the ▁machine ▁had ▁one ▁tail ▁and ▁two ▁main ▁flo ats . ▁All ▁three ▁were ▁of ▁a ▁plain ▁non - ste pped ▁type ▁and ▁could ▁move ▁independently ▁of ▁each ▁other ▁using ▁steel ▁and ▁rub ber ▁spring ▁assemb lies . ▁ ▁The ▁H F . 1 4 ▁was ▁power ed ▁by ▁a ▁ 7 - cy l inder , ▁air - co o led ▁G nome ▁L ambda ▁rot ary ▁p ist on ▁engine ▁of ▁ 8 0   hp ▁in ▁a ▁push er ▁configuration . ▁Part ▁of ▁the ▁upper ▁wing ▁was ▁cut ▁away ▁to ▁provide ▁clear ance ▁for ▁the ▁prop eller ▁and ▁passengers ▁had ▁to ▁be ▁careful ▁not ▁to ▁let ▁anything ▁get ▁drawn ▁into ▁and ▁strike ▁the ▁bl ades . ▁ ▁Oper ational ▁history ▁Over ▁the ▁course ▁of ▁its ▁useful ▁life ▁the ▁H F . 1 4 ▁was ▁employed ▁priv ately ▁as ▁a ▁racing ▁plane ▁and ▁later ▁by ▁the ▁military ▁as ▁a ▁tra iner . ▁One