Even though there were a lot of compact rockets created immediately after several years of research and experimentation, the main contemporary design rocket, and, additional importantly, the model rocket motor, was designed in 1954 by Orville Carlisle, a licensed pyrotechnics expert, and his brother Robert, a model airplane enthusiast.[six] http://ricardoirbks.ezblogz.com/22377817/the-2-minute-rule-for-backlink-for-website