The front of this handwritten note is written by Charly M. Taylor, allotting R. R. Lakin 50 acres of land. The back of the note is written by R. R. Lakin agreeing to the terms of the transaction that he will cultivate the land and deliver "one half of said crop to the said Charly Taylor."
The paper is marked, "To be presented at the IEEE 1965 Aerospace Conference featuring Flight Vehicle Electrical/Electronics Systems, Houston, Texas, June 20-24, 1965." The abstract states "This paper presents the electrical system used to drive the chilldown motor pumps on the S-IVB space vehicle. This system consists of a 56 volt battery supplying power to the two three-phase solid state inverters which in turn drive two cryogenic motor pumps. Included in this paper is a short description of the overall chilldown system requirements. The advantages of the a-c system over the d-c system are discussed with emphasis on weight and reliability. Two functionally identical 1.5kva inverters were designed. One inverter uses germanium transistors in the output stage while the other uses silicon transistors. Both inverters were designed to have a quasi-square wave output. The inverter circuitry is described and the advantages of each is discussed including a comparison of weight, size, operating temperature, efficiency and voltage rating." Includes diagrams.
Ron Lancaster was an engineer for Boeing in Huntsville, Alabama. His handwritten notes describe encounters with astronauts Dave Scott and James Irwin, working with Grumman engineers at Kennedy Space Center, and going inside the Lunar Excursion Module.
