▁or ▁separate ▁tail plane . ▁ ▁Like ▁some ▁of ▁H orten ' s ▁ta ill ess ▁gl iders , ▁the ▁I . A e . ▁ 3 4 ▁Cl en ▁Ant ú ▁for ▁example , ▁the ▁P UL ▁ 9 ▁had ▁a ▁well ▁defined , ▁though ▁short , ▁fus el age ▁or ▁pod . ▁This ▁was ▁a ▁deep ▁steel ▁t ube ▁structure ▁starting ▁about ▁mid - ch ord ▁and ▁extending ▁well ▁behind ▁the ▁trailing ▁edge , ▁with ▁a ▁single ▁seat ▁open ▁co ck pit ▁at ▁the ▁front ▁and ▁a ▁ 4 2   hp ▁( 3 1   k W ) ▁Rot ax ▁ 4 4 7 ▁two ▁cyl inder ▁two - stroke ▁engine ▁in ▁push er ▁mode ▁behind . ▁ ▁The ▁main ▁whe els ▁of ▁the ▁P UL ▁ 9 ' s ▁fixed ▁tr icy cle ▁under car riage ▁were ▁also ▁mounted ▁on ▁the ▁steel ▁frame , ▁with ▁the ▁nose w heel ▁attached ▁near ▁the ▁leading ▁edge . ▁ ▁The ▁under car riage ▁used ▁rub ber ▁cord ▁shock ▁absor bers ▁and ▁drum ▁bra kes . ▁ ▁The ▁P UL ▁ 9 ▁is ▁reported ▁to ▁have ▁flow n ▁several ▁times ▁and ▁handled ▁well . ▁ ▁By ▁the ▁end ▁of ▁ 1 9 9 1 ▁attention ▁had ▁turned ▁to ▁a ▁two - se at ▁version , ▁the ▁N ike ▁P UL ▁ 1 0 . ▁ ▁Spec ifications ▁ ▁See ▁also ▁ ▁References ▁ ▁Category : 1 9 9 0 s ▁Argent ine ▁experimental ▁aircraft ▁Category : 1 9 9 0 s ▁Italian ▁experimental