▁a ▁standard ▁empty ▁weight ▁of ▁. ▁It ▁features ▁a ▁str ut - b rac ed ▁high - wing , ▁a ▁single - se at , ▁open ▁co ck pit , ▁conventional ▁landing ▁g ear ▁and ▁a ▁single ▁engine ▁in ▁tra ctor ▁configuration . ▁ ▁The ▁aircraft ▁is ▁made ▁from ▁bol ted - t ogether ▁al umin um ▁tub ing , ▁with ▁its ▁flying ▁surfaces ▁covered ▁in ▁D ac ron ▁sail cl oth . ▁Its ▁ 8 0 % ▁double - sur face ▁ ▁span ▁wing ▁is ▁b rac ed ▁with ▁" V " ▁lift ▁str uts . ▁The ▁pilot ▁is ▁accommod ated ▁on ▁an ▁open ▁seat , ▁protected ▁by ▁a ▁simple ▁wind sh ield . ▁The ▁landing ▁g ear ▁has ▁susp ension ▁on ▁the ▁main ▁whe els ▁and ▁features ▁a ▁ste er able ▁tail w heel . ▁The ▁three ▁axis ▁control ▁system ▁is ▁unusual . ▁P itch ▁and ▁roll ▁are ▁convention ally ▁controlled ▁with ▁elev ator ▁and ▁rud der , ▁while ▁roll ▁is ▁controlled ▁with ▁tip ▁rud ders . ▁ ▁Vari ants ▁T / A ▁Initial ▁design , ▁power ed ▁by ▁a ▁ ▁Rot ax ▁ 2 7 7 ▁single ▁cyl inder , ▁two - stroke ▁power plant . ▁ 1 - A ▁Up - eng ined ▁model , ▁power ed ▁by ▁a ▁ ▁Rot ax ▁ 4 4 7 ▁tw in ▁cyl inder , ▁two - stroke ▁power plant . ▁ ▁Two - se ater ▁Similar ▁to ▁the ▁single - se at ▁models ▁but ▁with ▁a ▁second ▁seat ▁for ▁dual ▁instruction .