Matches in DBpedia 2014 for { ?s ?p The Blok DM-03 (Russian: Блок ДМ-03 meaning Block DM-03), GRAU index 11S861-03, is a Russian upper stage used as an optional fourth stage on the Proton-M carrier rocket. Two have been launched, the first in December 2010, however as of July 2013 the stage is yet to be demonstrated in flight as both launches failed before fourth stage ignition, the first as a result of a problem with the Blok DM's fuel load.The Blok DM-03 is powered by a single RD-58MF engine, fuelled by RP-1 paraffin and oxidised by liquid oxygen. It can carry 25% more propellant than the Blok DM-2, which it replaced as a Proton upper stage; however most government launches and all commercial missions use the Briz-M instead. The payloads for the first two Blok DM-03 launches were groups of three Uragan-M satellites for the GLONASS programme, with further missions slated to carry three more Uragan-M satellites, and two Ekspress satellites on separate launches. The Blok DM can inject payloads into orbit more accurately than the Briz-M, making it better suited for launching satellites such as the Uragan-M which lack apogee motors.When production ended in 2012, five Blok DM-03 stages had been produced by RKK Energia, for use on Proton and potentially Zenit rockets. A new version of the upper stage is expected to be introduced once the five launches are complete; all five DM-03s have been slated for Proton launches between 2010 and 2015.. }
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- Blok_DM-03 abstract "The Blok DM-03 (Russian: Блок ДМ-03 meaning Block DM-03), GRAU index 11S861-03, is a Russian upper stage used as an optional fourth stage on the Proton-M carrier rocket. Two have been launched, the first in December 2010, however as of July 2013 the stage is yet to be demonstrated in flight as both launches failed before fourth stage ignition, the first as a result of a problem with the Blok DM's fuel load.The Blok DM-03 is powered by a single RD-58MF engine, fuelled by RP-1 paraffin and oxidised by liquid oxygen. It can carry 25% more propellant than the Blok DM-2, which it replaced as a Proton upper stage; however most government launches and all commercial missions use the Briz-M instead. The payloads for the first two Blok DM-03 launches were groups of three Uragan-M satellites for the GLONASS programme, with further missions slated to carry three more Uragan-M satellites, and two Ekspress satellites on separate launches. The Blok DM can inject payloads into orbit more accurately than the Briz-M, making it better suited for launching satellites such as the Uragan-M which lack apogee motors.When production ended in 2012, five Blok DM-03 stages had been produced by RKK Energia, for use on Proton and potentially Zenit rockets. A new version of the upper stage is expected to be introduced once the five launches are complete; all five DM-03s have been slated for Proton launches between 2010 and 2015.".