西班牙发射公司PLD Space宣布，已开始对其米拉5号轨道火箭进行系统级测试，并已制造出首批三枚火箭。
Spanish launch company PLD Space announced that it has started system-level testing of its Miura 5 orbital rocket and has now built its first three vehicles.
其中两枚为资格认证型，用于测试；第三枚则是首枚计划执行飞行任务的火箭，目前仍在组装中。该公司总部位于埃尔切，并在一份声明中表示，将三枚火箭并排建造，使工程师能够直接将测试结果反馈到飞行器上。
Two of the three are qualification units, used for testing, and the third is the first rocket meant to fly; it is still being assembled, the Elche-based company said in a statement. Building them side by side lets engineers feed test results straight into the flight vehicle.
主要步骤是完全组装好的二级火箭，它将结构、电子设备、燃料系统、控制系统和发动机集于一体。该二级火箭目前竖立在位于西班牙东部特鲁埃尔的PLD Space测试场。
The main step is a fully assembled second stage, which combines the structure, electronics, fuel system, controls, and engine. It stands upright at PLD Space’s test site in Teruel, in eastern Spain.
在那里，它将进行湿装排练，即使用真正推进剂的演练倒计时。随后将进行静态点火测试，届时发动机将在火箭级被固定住的状态下运行。
There, it will go through a wet dress rehearsal, a practice countdown with real propellants. A static fire test will follow, in which the engine runs while the stage is held down.
公司表示，这些测试将有助于在米拉5号首次示范飞行前降低风险，该飞行计划于2027年上半年进行。
The company said the tests will help reduce risk before Miura 5’s first demonstration flight, planned for the first half of 2027.
PLD Space还已完成两级分离在飞行中的测试，以及两个用于保护有效载荷的鼻锥测试版本的测试。
PLD Space has also finished tests of how the two stages separate in flight, and of two test versions of the nose cone that protects the payload.
此外，公司已制造出七台完整发动机和13个燃料箱，其中包括首飞火箭两级的液氧箱。根据公司说法，飞行电子设备目前已准备好用于四枚完整火箭。
In addition, it has built seven complete engines and 13 fuel tanks, including the liquid-oxygen tanks for both stages of the first-flight rocket. Flight electronics are now ready for four complete rockets, according to the company.
“并行制造三辆飞行器使我们能够加速这一学习过程，”PLD Space首席执行官兼联合创始人拉乌尔·托雷斯说道。
“Having manufactured three vehicles in parallel allows us to accelerate this learning process,” said Raúl Torres, PLD Space’s chief executive and co-founder.
公司也在扩建其场地。在埃尔切，公司拥有17,000平方米的工厂空间；在特鲁埃尔，则有十个测试架，其中包括一个新建的10.2米高的测试架，用于测试完整的二级火箭。
The company is also expanding its sites. It has 17,000 square metres of factory space in Elche and ten test stands in Teruel, including a new 10.2-metre stand built to test complete second stages.
与此同时，在法属圭亚那库鲁的圭亚那航天中心——米拉5号将从此处发射——PLD Space已收到约60个地面设备集装箱。公司正与法国航天局CNES合作，制定发射的安全程序。
Meanwhile, at the Guiana Space Centre in Kourou, French Guiana, where Miura 5 will launch, PLD Space has received about 60 containers of ground equipment. It is working with the French space agency, CNES, on safety procedures for launches.
同时，公司正在测试其发射台设备。这包括使火箭保持垂直的强背架、在发射前将其固定住的夹具，以及连接其与电力和燃料的管线。
At the same time, the company is testing its launch pad equipment. This includes the strongback that raises the rocket upright, the clamps that hold it down until liftoff, and the lines that connect it to power and fuel.
PLD Space表示，已向493家供应商投入4270万欧元，其工作得到了被欧洲航天局欧洲发射器挑战赛选中以及2.88亿欧元C轮融资的支持。
PLD Space said it has spent €42.7M with 493 suppliers, and the work is backed by its selection for the European Space Agency’s European Launcher Challenge and a €288mn Series C funding round.
该公司于2023年10月首次发射了一枚较小的亚轨道测试火箭米拉1号。
The company first flew a smaller suborbital test rocket, Miura 1, in October 2023.