Juan Carlos Gideon <JCAirStuff@aol.com> wrote: >What differences if any, exist between a Beech 3NM and a Beech 18 ?? Juan, The model number 3NM is actually a bastardized version of a Canadian military designation. A couple of hundred Beechcraft D-18S were bought by the RCAF in the post-war years as Expeditor Mk-3N, Mk-3NM and Mk-3TM. When civilianized, most seem to have acquired the Beechcraft 3NM moniker. Serial number prefix was CA- (standard civil D-18S was just A-). P.S. I am disappointed that Mike Gammon did not know this ;) Kees de Lezenne Coulander -- = C.M. de Lezenne Coulander Aircraft Development and Systems Engineering B.V. Hoofddorp, The Netherlands =