f. The HLLV fleet will have a launch rate capability margin of 50% beyond the average annual rate requirement. (The average will include operational LEO needs and OTV propellant losses, if any.) Mission Requirements a. Launch Site - The HLLV shall be launched from the Eastern Launch Site at KSC, or from a launch site location on a U.S. possession at a lower latitude, to be determined by launch project economics and environmental considerations. b. HLLV Capability - The HLLV shall be capable of transporting, unmanned, SPS components and related cargo from the launch site to the low Earth orbit staging point as required to install up to seven Solar Power Stations per year. No return cargo capability shall be provided by the HLLV. c. Orbital Parameters - The HLLV mission shall originate at the launch site, latitude TBD, and terminate at the low Earth orbit staging point in a 500 km circular orbit with an inclination consequent to a due east launch from the selected launch site. d. Mission Duration - The HLLV mission will extend from launch to recovery at the launch site and shall include unloading of the cargo at the low Earth orbit destination and the recovery operations of the HLLV. e. Launch Window Constraints - Launch window constraints shall not preclude the launch rate necessary to establish up to seven SPS units per year. f. Intact Abort - No intact abort capability will be provided by the HLLV for the payloads except as required by range safety considerations. Safe return of the launch vehicle elements shall require either nominal mission completion through cargo delivery or jettison of the cargo. Performance Requirements a. Payload Requirements - The HLLV shall be capable of transporting from the launch site to the low Earth orbit assembly point a payload of at least 450 to 900 tons mass, 48 to 80 kg/nr density, and dimensions of 12 x 10 x 10 m, which is the largest and/or heaviest irreducible component of the SPS. The payload diameter shall be not less than 12m and no greater than 30m in diameter. b. Guidance and Navigation Accuracies - The HLLV shall be capable of guidance and navigation accuracy consistent with placing its payload at the assembly point and the recovery operation. The OMS
RkJQdWJsaXNoZXIy MTU5NjU0Mg==