Specifications include, but are not limited to: Once the contracts are established, the contracting officer will group the aircraft into Designated Base locations, arrange them according to lowest per hour flight-time cost per make/model of aircraft, and list each aircraft’s performance and optional equipment features in a “Value Analysis Spreadsheet.” When an ordering agency requires the use of an aircraft for a charter, they will consider the type of aircraft needed to complete the charter. This determination shall be based on, but not limited to, aircraft size and performance, transportation of hazardous materials, and available optional equipment. Following this determination, the ordering agency shall then perform a value analysis to determine which contractor will be contacted first, based on the lowest priced aircraft. This value analysis will be based on all factors that may affect the total charter cost, including but not limited to, aircraft performance factors, aircraft location, flight-time hourly rate, minimum flight-time, additional standby-time hourly rate, daily availability rate, additional personnel rates and fuel cost.