The first model airplane I "built" was a monogram speedy built Shoestring Racer for rubber power at age 9 (1949) in my teens I flew control line stunt and combat, as well as free flight models. My modelling activities stopped when I went to university to study Mechanical Engineering and during my M.Sc. program in Operations Research. When I came back to Mexico, I took up R/C and havenīt stopped since! Today I fly large scale aerobatic airplanes and scale models. I have also developed an interest in electric models and own several of these up to 60" wingspan.