Jim Wronkiewicz is an Aerospace Engineer with 23 years of experience in aerospace propulsion. Four of his engine designs have gone into service. He has also analyzed engine test results, generated certification reports, and was an early contributor to the understanding of jet engine emission characteristics. Jim is also a private pilot with hundreds of hours of experience. He also creates videos documenting simulations of significant aerospace events and historical records of significant launches. Jim was a Docent and co-curator (propulsion) at a major aerospace museum. He also helped train other docents for several traveling engineering / space exhibitions.