42 Research and development services in the fields of aviation, aviation navigation, environmental dangers, software, and computer systems for use in aviation; providing online non-downloadable software for facilitating aviation navigation and monitoring contrails and other environmental risks in the field of aviation; computer services, namely, the design and implementation of computer hardware and software systems for use in aviation, aviation navigation, monitoring contrails and other environmental risks; planning and design of computer technologies for others and technological consulting in the fields of aviation, aviation navigation, and monitoring contrails and other environmental risks in the field of aviation; Computer software design and implementation services; development of customized computer hardware and software systems for others in the nature of software for facilitating aviation navigation and monitoring contrails and other environmental risks in the field of aviation