Chuck & Robin Martinez are full-time missionaries in Guatemala, with over 12 years of mission aviation experience. Since January 2019, we have taken on new & expanded roles as Mission Directors with SGSP Aviation Ministries. SGSP’s international office & mission base is located in our home city of Quetzaltenango, Guatemala. We are also responsible for the staffing and operation of the stateside office in Sierra Vista, AZ. Follow SGSP Aviation Ministries on Facebook, LinkedIn or, read posts on our blog.