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Underpinning Vega-E is the M10 liquid oxygen-methane engine, which will replace the Zefiro-9 and AVUM+ third and fourth stages of Vega-C to create a more efficient three-stage launcher. Vega, first flown in 2012, can place about 1,400 kg into a 700 km polar orbit. Vega-C increases that performance to about 2.3 t for about the same cost. Vega-E will add another 20% performance improvement while reducing launch service costs by a fifth.