Although there were a lot of small rockets made immediately after decades of research and experimentation, the initial present day design rocket, and, far more importantly, the product rocket motor, was designed in 1954 by Orville Carlisle, a licensed pyrotechnics expert, and his brother Robert, a model plane enthusiast.[six] http://paxtondaup059381.affiliatblogger.com/29206525/the-ultimate-guide-to-seo-expert