French startup Latitude to spend $9.3 million on building its French Guiana launch facility

The French Guiana spaceport. The Diamant launchsite is labeled “B.”
Click for full resolution image. (Note: The Ariane-5 pad is now the
Ariane-6 pad.)
The French rocket startup Latitude has announced it will spend $9.3 million to build its own launchpad at the spaceport in French Guiana, where hopes to launch its Zephyr rocket in 2026.
In a 23 June update, Latitude confirmed the Guiana Space Centre as the launch site for the inaugural flight of its 19-metre-tall, two-stage Zephyr rocket, which is designed to deliver payloads of up to 200 kilograms to low Earth orbit. The site was one of two under consideration, with the company also having committed to developing launch infrastructure at SaxaVord Spaceport in Scotland. When that partnership was announced in March 2022, Latitude, then known as Venture Orbital Systems, aimed to carry out its first launch from SaxaVord in 2024.
Construction of the ELM-Diamant shared launch facility began in 2025 and is expected to be completed by 2026. According to Latitude’s 23 June update, the company will work with CNES and the European Space Agency in the coming months to implement its dedicated launch infrastructure at the site. This will be followed by the inaugural launch of its Zephyr rocket in 2026.
It is not clear exactly how that ELM-Diamant launch site will be shared. France’s space agency CNES (which operates French Guiana) had previously said it wanted all the new European rocket startups that wanted to launch from there to use a common launch infrastructure, thus requiring them to share technology as well as redesign their rockets to fit CNES’s requirements. The rocket startups objected, but it now appears two startups, Latitude and PLD, and come to an agreement of some sort.
This deal also suggests that Latitude is shifting away from using the Saxavord spaceport in the United Kingdom, possibly because it has seen the difficult regulatory hurdles required there and has decided French Guiana is a better option.
On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.
The print edition can be purchased at Amazon. from any other book seller, or direct from my ebook publisher, ebookit.
The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.
The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News
The French Guiana spaceport. The Diamant launchsite is labeled “B.”
Click for full resolution image. (Note: The Ariane-5 pad is now the
Ariane-6 pad.)
The French rocket startup Latitude has announced it will spend $9.3 million to build its own launchpad at the spaceport in French Guiana, where hopes to launch its Zephyr rocket in 2026.
In a 23 June update, Latitude confirmed the Guiana Space Centre as the launch site for the inaugural flight of its 19-metre-tall, two-stage Zephyr rocket, which is designed to deliver payloads of up to 200 kilograms to low Earth orbit. The site was one of two under consideration, with the company also having committed to developing launch infrastructure at SaxaVord Spaceport in Scotland. When that partnership was announced in March 2022, Latitude, then known as Venture Orbital Systems, aimed to carry out its first launch from SaxaVord in 2024.
Construction of the ELM-Diamant shared launch facility began in 2025 and is expected to be completed by 2026. According to Latitude’s 23 June update, the company will work with CNES and the European Space Agency in the coming months to implement its dedicated launch infrastructure at the site. This will be followed by the inaugural launch of its Zephyr rocket in 2026.
It is not clear exactly how that ELM-Diamant launch site will be shared. France’s space agency CNES (which operates French Guiana) had previously said it wanted all the new European rocket startups that wanted to launch from there to use a common launch infrastructure, thus requiring them to share technology as well as redesign their rockets to fit CNES’s requirements. The rocket startups objected, but it now appears two startups, Latitude and PLD, and come to an agreement of some sort.
This deal also suggests that Latitude is shifting away from using the Saxavord spaceport in the United Kingdom, possibly because it has seen the difficult regulatory hurdles required there and has decided French Guiana is a better option.
On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.
The print edition can be purchased at Amazon. from any other book seller, or direct from my ebook publisher, ebookit. The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.
The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News
Robert Zimmerman,
All good questions. I have another to which I can’t find an answer – how big is this Diamant launch site? In addition to Latitude and PLD, Rocket Factory Augsburg and Isar have also expressed interest in building pads there. How close together can multiple pads safely be to one another? SpaceX is building a Starship pad less than a kilometer from its extant F9/FH pad at LC-39A and there is no evidence – at least yet – of any berm or blast wall separating the two. Perhaps berms or blast walls would allow multiple pads at Kourou’s ex-Diamant location to operate safely at minimal separations. Given SpaceX’s GSE misadventures these last few years, I worry a bit more about such things now than I used to.
Dick Eagleson asked: “How close together can multiple pads safely be to one another? SpaceX is building a Starship pad less than a kilometer from its extant F9/FH pad at LC-39A and there is no evidence – at least yet – of any berm or blast wall separating the two.”
What a good question. I don’t think we have a real answer yet. SpaceX is also building a second Starship pad surprisingly close to the first one. From the rocket RUDs that we have seen, it seems that fire and flame stay relatively close to the pad. The latest Starship RUD shows some charring on a portion of the nearby tank farm. I suppose that the blast/overpressure could have a nasty effect much farther away than the fire damage.