Boeing_Small_Launch_Vehicle
The Boeing Small Launch Vehicle, or SLV, is an air-launched three-stage-to-orbit launch vehicle concept aimed to launch small payloads of 100 pounds (45 kg) into low Earth orbit. The program is proposed to drive down launch costs for small satellites as low as US$300,000 per launch ($7,000/kg) and could be fielded by 2020.[1] [needs update]