Is Vega a Dead End?
Is Vega a Dead End?
On 21 October, Italian rocket builder Avio presented a market update that outlined the additional investment required to increase the annual launch cadence of its Vega C rocket to six and eventually nine flights per year.
According to the presentation, investments agreed at the European Space Agency’s (ESA) 2022 and 2025 ministerial meetings will finance improvements to ground infrastructure in French Guiana and the rocket’s supply chain. However, increasing production of the P120C and P160C solid rocket motors will require additional funding from a future ministerial meeting and Avio itself.
Reaching nine flights per year would require further investments, which would go toward the company’s production facilities in Colleferro, Italy, and additional supply-chain capacity. Avio expects these investments to be discussed at ESA’s next scheduled ministerial meeting in 2028.
The need for this additional funding raises an interesting question about the future of Italy’s Vega launch vehicle family. Is investing in the infrastructure needed to secure just three more Vega C flights per year by the end of the decade the best use of resources, particularly when several emerging European launch companies appear poised to offer comparable capacity?
Is five launches a year enough?
In a report published by the Italian Space Agency in December 2024, the agency explained that Avio had initially expected to reach four Vega C launches per year, increasing to six by 2028. Less than a year and a half later, that target had already slipped.
In a March 2026 presentation, the company said it aimed to reach a launch cadence of six Vega C flights per year between 2029 and 2031. This would represent a delay of between one and three years compared with its initial 2028 target. However, Avio appears to be pursuing an intermediate milestone that could be reached considerably sooner.
During a May earnings call, CEO Giulio Ranzo said the company was targeting as many as five Vega C launches in 2027, just one short of its longer-term annual target. This suggests that the company could stabilise at five flights per year as early as next year.
The Ariane 6 problem
Perhaps the most significant challenge facing Vega C is its reliance on the same solid rocket motor production infrastructure as Ariane 6.
Both launchers use the P120C, with the upgraded P160C being introduced across the two programmes. Vega C requires just one booster as its first stage, while Ariane 62 uses two and Ariane 64 uses four.
In an August 2021 resolution, ESA member states outlined an exploitation model based on an average annual European institutional demand of four Ariane 6 launches: three Ariane 62 missions and one Ariane 64 mission. This model was heavily weighted toward the two-booster variant, although it covered institutional demand rather than the full anticipated commercial and institutional manifest.
During an ESA media briefing on 22 October, Director of Space Transportation Géraldine Naja explained that the anticipated launch mix had changed substantially.
“Now we have a big majority of Ariane 64, and a very small number of Ariane 62.”
Naja went on to identify production of the P120 and P160 solid rocket motors as the primary bottleneck restricting efforts to increase Ariane 6’s launch cadence, with clear implications for efforts to ramp up Vega C’s launch rate.
In a December 2025 announcement confirming that the P160C motor had completed its ground qualification review, ESA said industry was working towards an annual production capacity of 35 or more motors to support increased launch rates for Ariane 6 and Vega C.
Assuming, for illustration purposes, that 80% of Ariane 6 launches use the four-booster configuration, ten Ariane 6 launches annually would require approximately 36 boosters. Add the baseline four Vega C launches per year, and the combined requirement already exceeds that production target.
If Europe plans to increase the launch cadence of Ariane 6 to 12 and Vega C to six flights per year, production would have to be ramped up to a minimum of 49 boosters, representing a 40% increase over ESA’s December 2025 production estimate.
There is an irony in this. The decision to use a common solid rocket motor was intended to reduce production costs through economies of scale. Instead, growing demand for Ariane 64 risks making efforts to increase Vega C’s own launch cadence increasingly difficult to realise.
Vega E faces the same production bottleneck
Avio is already developing Vega E, the next evolution of the Vega family. The major improvement over its predecessor is the move from four to three stages, with a new liquid-fuelled upper stage replacing the Vega C third and fourth stages. The change is intended to simplify the launcher, improve performance, and reduce operating costs.
Vega E does, however, retain the P160C solid rocket motor as its first stage. This means that while the new upper stage may offer significant improvements, Vega E will remain dependent on the same production infrastructure currently constraining the expansion of Ariane 6 and Vega C.
Italy is already looking beyond Vega
While ESA continues to finance improvements to Vega C and the development of Vega E, the Italian government has been funding an entirely different path for Avio.
Through its High Thrust Engine (HTE) and Space Transportation System (STS) programmes, the company is developing an MR60 methalox rocket engine and a fully liquid-fuelled demonstrator that will test technologies for a future reusable launch system. Together, the programmes offer a path toward a future launch system that would be free from the production constraints of the P160C boosters.
During a 10 September presentation on the company’s first-half 2026 financial results, Avio said that the FD1 demonstrator had been “fully integrated” and that it expected to complete ground testing by the end of the year. The company did not, however, provide any details about when it expected to conduct the demonstrator’s first flight.
A Future Worth Investing In?
Vega C isn’t going anywhere. As Ariane 6 continues to meet Amazon’s launch requirements and later supports the deployment of Europe’s IRIS2 secure communications constellation, Vega C will remain an important asset for dedicated European institutional missions.
However, it’s an inescapable reality that a single Ariane 64 launch requires the equivalent of an entire year’s worth of solid rocket boosters for Vega C at its baseline annual launch cadence of four flights. The shared production infrastructure, conceived around a very different set of launch expectations, is increasingly being stretched by a level of demand for Europe’s heavy-lift launcher that no one anticipated.
ESA and its member states must therefore confront a difficult question. Does it make sense to continue investing in expanding Vega C’s launch cadence and later introducing Vega E when the future of both vehicles depends on production capacity that is increasingly demanded by Ariane 6? Or would those resources be better directed towards accelerating the development of a successor that will not be constrained by that shared dependency?
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