presentations to aircraft owner groups around the country and have had display booths at several conventions and workshops including the FAA workshop for pilots and mechanics held... by the simplicity and integrity of our system and have been very supportive of our endeavor. I have looked under the cowls of hundreds of airplanes and photographed many of them for my... aircraft engines. Designed Preoiler pump. Purchased precision machines to manufacture parts. Machined all parts to create first Preoilers. Installed and tested Preoiler on airplane...