The satellite will be launched from Baikonur Cosmodrome in Kazakhstan.Artist's rendition of Inmarsat-5's launch into orbit in 2013. In August 2012, Inmarsat signed a contract with International Launch Services (ILS) to launch the Inmarsat-5 satellite on the Proton launch vehicle. The Inmarsat-5 is compatible to be launched atop Ariane, Sea Launch, Proton and Atlas launch vehicles. The satellite bus can accommodate 5,900kg of payload and was first introduced in October 1995. It will be equipped with the xenon ion propulsion system (XIPS) for all on-orbit manoeuvring. Boeing 702HP satellite busĭesigned and manufactured by BSIS, the BSS-702HP is a flight proven satellite bus principally being deployed for geomobile services. The satellite will render speeds at the rate of 50mbps (downloads) and 5mbps (uploads) for mobile user terminals having a size of 60cms. The 89 Ka-band transponders fitted in the spacecraft will provide mobile satellite services to the entire globe. The Inmarsat-5 is a digitally channelized transponded satellite which will render communication capacity, connectivity and flexibility. Delivery of the fourth spacecraft is scheduled for 2016.

In October 2013, Boeing received authorisation to build fourth Inmarsat-5 satellite. The second and third Inmarsat-5 satellites are scheduled for launch in 2014. In April 2012, Inmarsat signed a contract with Honeywell to develop the onboard hardware that will enable users to connect to Inmarsat’s GX aeronautical services. Inmarsat contracted Rockwell Collins in August 2011 for the development, production and distribution of User Terminals (UTs) for future GX aeronautical services. These antennas are part of the Gimbal Dish Antenna (GDA) systems. Harris Corporation will supply Ka-band antennas to BSIS for three Inmarsat-5 spacecraft as part of a contract signed in March 2011. The wireless broadband network will operate at Ka-band microwave frequencies ranging between 18GHz and 31GHz, which however possess more signal quality issues compared to that of Ku-band (12GHz-18GHz) frequency range. Inmarsat awarded a contract to Boeing in August 2010 to design, build and supply three Inmarsat-5 satellites as part of a £752m ($1.2bn) wireless broadband network known as Global Xpress. The Intelsat 21 (IS-21) communication satellite was successfully placed into the geosynchronous Earth orbit (GEO) in August 2012. Intelsat 21 Communication Satellite, United States of America Operational service of the spacecraft is expected to begin in 2014. Upon completion, the four Inmarsat-5 satellites will join Inmarsat’s existing 11 geostationary satellites, which render voice and data services. Inmarsat-5 F1, the first satellite in a series of four Inmarsat-5 satellites, was launched into Geosynchronous Orbit through BSS-702HP platform in December 2013. It will be owned and operated by global mobile satellite broadband service provider Inmarsat. The satellite is being designed and built by Boeing Space and Intelligence Systems (BSIS). The Inmarsat-5 (I-5) is a telecommunication satellite principally used to render mobile broadband communications for deep-sea vessels, in-flight connectivity for airline passengers and high quality video, voice and data services to the entire globe. Inmarsat-5 is being designed and built by Boeing Space and Intelligence Systems. Inmarsat-5 is fitted with two solar wings of five gallium arsenide solar panels. Artist's rendition of Inmarsat-5's launch into orbit in 2013.

Inmarsat 5 supersync