erico
New Member
New member, quite embarassed to be asking questions already, but anyway: new rotax 912 may cost as much as 30kUS in my coutry, because of import duties -- used 912´s not yet available -- but 503´s go for 15hundred plus some 1thou to rebuild -- then I would like very much to have some hints & clues regarding the installation of two 503´s in CH-701´s wings -- engines well inboard I know, CG questions I know, VMCA I know (do I, and what about rudder area?), single-engine operation I know, 49HP enough for single-engine operation I know -- should I plainly double the spar´s thickness in the area, should I invent a separate "cage-across" of 3/4inch 4130 tubing? Basic question regards to how to fix the engine mount in fwd and rear spars. Thank you in advance. Erico
