FAQs | Baldwin Aerospace

FAQs

What is test-as-a-service?

It is a streamlined, on-demand model for hardware validation that eliminates the need for companies to build or maintain their own facilities or wait for access to massive internal or government testing infrastructure. Instead of managing the complexities of high-power plasma sources, vacuum systems, cooling loops, and gas supplies, our clients simply provide their test articles and requirements.

Do I even need to test my materials in an arcjet?

If your hardware is destined for high-speed flight or atmospheric reentry, the answer is almost always yes! The basic physics of an arcjet cannot be replicated by other means. Arcjet testing is necessary to:

Validate Simulations: High-enthalpy environments involve dissociated gases and non-equilibrium chemistry that often reveal "surprises" not seen in a computer model.
Observe Real-Time Ablation: We capture the exact moment a material begins to char, recede, or delaminate—data that is vital for determining safety margins.
Identify Failure Modes: Mechanical stress, thermal shock, and chemical erosion happen simultaneously in an arcjet. Testing is the only way to see how these forces interact to find the "breaking point" of your design.
Lower Mission Risk: It is far more cost-effective to fail in a vacuum chamber on the ground than after production.

Why can’t I just test in a split tube furnace or use a torch instead?

Furnaces and torches provide heat, but they do not provide enthalpy. A split tube furnace can make a sample very hot, but the air is static. In arcjets the air isn't just hot, it is dissociated. The molecules are literally ripped apart into atoms and ions. When these atoms recombine on your material’s surface, they release a massive amount of "chemical" heat. A furnace cannot simulate this chemistry; an arcjet can.

Additionally, a furnace has zero airflow. A torch has some, but it rarely reaches the Mach levels required to simulate aerodynamic shear. In many real applications, your material isn't just melting, it’s being scoured. An arcjet provides the high-velocity flow needed to see if your charred surface will stay attached or be stripped away by the flow.

Lastly, materials behave differently in the thin atmosphere of high-altitude flight. A torch test at sea level (1 atm) doesn't account for the vacuum conditions where outgassing and sublimation occurs. Our RDMS X-Jet operates in a vacuum, correctly simulating the pressure gradients your material will actually be exposed to.

Are computational fluid dynamics (CFD) models enough?

Usually not. While many computational fluid dynamics (CFD) models have become very advanced, they cannot perfectly predict the complex thermochemical interactions that occur in the flow of an arcjet or at the surface of a material inserted into it. The “real world” testing provided by an arcjet should give a large advantage over your competitors that are stuck relying only on simulation data.

Do you only do material testing?
While high-enthalpy material validation is our core focus, the RDMS X-Jet is a versatile platform designed for a broad range of high-energy physics and hardware applications. We view our facility as a laboratory for any technology that must survive or utilize extreme environments. In addition to standard material testing, we support:

1. High-Temperature Instrumentation and Sensors

Testing a sensor in a lab is different than testing it in a Mach 4+ plasma stream. We provide a platform to validate:

Thermocouples and Pyrometers: Calibrate and test response times under real-world heat flux.
Pressure Transducers: Verify structural integrity and data accuracy in high-vibration, high-enthalpy flows.
Heat Flux Gauges: Benchmark new sensor designs against established flow conditions.

2. Plasma Physics and Flow Diagnostics

Our facility is an ideal environment for fundamental research into the behavior of ionized gases.

Flow Characterization: Study shock-wave stand-off distances and boundary layer interactions.
Spectroscopy: Conduct optical emission spectroscopy (OES) to analyze gas species and electronic temperatures within the plasma plume.
Communications (RF) Blackout: Test the effects of plasma density on radio frequency transmission—a critical challenge for reentry vehicles.

3. Component-Level Validation

We can test more than just flat "coupons." We provide testing for integrated hardware components, such as:

Leading Edges and Nose Tips: Validating the geometry-specific ablation of complex 3D shapes.
Fasteners and Seals: Testing how joints and thermal barriers hold up when exposed to "hot gas" ingestion.
Antenna Windows: Ensuring that signal-transparent materials maintain their dielectric properties while under thermal load.

4. Custom Experimental "Plug-ins"

The RDMS X-Jet was built for flexibility. If you have a custom experimental setup, such as an active cooling system or a new magnetic shielding concept, we can work with you to integrate your hardware into our vacuum chamber and plasma flow.

What kind of environments does Baldwin Aerospace recreate?

The RDMS X-Jet facility specializes in recreating the extreme physics of upper atmosphere entry, specifically simulating altitudes between 30 km and 90 km where the air is thin and at conditions previously experienced by the Space Shuttle. In addition, the RDMS X-Jet facility can recreate conditions for pushing Ultra-High Temperature Ceramics (UHTCs), Carbon-Carbon (C-C) composites, and novel materials to their absolute limits.

What are the maximum temperatures possible of a material inserted into the flow?

The RDMS X-Jet can drive material surface temperatures up to about 3,000°C (5,432°F). This temperature is approaching the melting point of Tungsten, the metal with the highest melting point on the periodic table.

How close is this to testing in large scale MW class facilities?

The RDMS X-Jet is specifically designed to compete with these larger facilities. While it operates at a smaller physical scale than MW-class facilities, it is engineered to recreate the exact high-enthalpy and high-heat-flux conditions that materials experience in those larger systems.

What is the lead time of a test campaign?

Lead times are typically 2-6 weeks for basic tests and up to 3 months for more high complexity tests.

What sample geometries do you support?

The "sweet spot" for the RDMS X-Jet is a 1-inch diameter surface area. This size is ideal because it allows for the most concentrated and uniform high-enthalpy flow across the test article, ensuring your material is fully immersed in the core of the plasma plume. However, the vacuum chamber can support test articles much larger. Coupons can be blunt bodies, leading edge configured, circular or square-faced.

How long is a single arcjet run?

Given the usual sample size, run times of up to 3 minutes are typical. However, run times can be extended as long as 15 minutes in certain cases.

Can we provide our own custom gas mixtures?

No, the RDMS X-Jet runs exclusively with air.

Can we provide our own sensors?
Yes, and we will work with you on the integration.

What kind of data do you supply?

We can provide material surface temperature profiles via infrared thermometry, backside surface temperature measurements, mass loss and recession, high-resolution video, macro photography, and emission spectroscopy of ablated surfaces. We can also provide data via your custom sensors. Lastly, we can provide a comprehensive report detailing key highlights and takeaways.

Are you Controlled Unclassified Information (CUI) compliant?

While we are currently in the process of finalizing formal CUI compliance, we have established protocols to protect your sensitive aerospace and defense data. In the interim, we utilize secure workflows and strict non-disclosure agreements (NDAs) to ensure all proprietary designs and test results remain confidential throughout your campaign.

We are experienced in utilizing effective "workarounds" to facilitate testing for projects that involve sensitive technology:

De-identified Testing: By focusing purely on the material science of "black box" coupons without linking them to specific mission profiles or classified airframes, we can often bypass many restrictive data handling requirements.
Generic Geometries: Testing standard 1-inch coupons or generic blunt bodies allows you to collect 100% of the necessary thermal data without the shape itself triggering controlled status.
Isolated Data Fusion: If your project requires it, you can utilize your own data acquisition systems for sensitive sensors. We provide the facility environment data separately, ensuring the fusion of sensitive information happens entirely on your end.

These strategies and others allow us to maintain the speed of a commercial facility while the official CUI framework is finalized. We can discuss the best path forward to ensure your data is protected during our Q2 through Q4 test blocks.

Are you International Traffic in Arms Regulations (ITAR) compliant?

As a private U.S. facility, we operate with the understanding that much of the hardware and data we handle may fall under the International Traffic in Arms Regulations (ITAR). We are currently working toward formal registration and full compliance systems to support the most sensitive defense-related contracts.

In the meantime, we handle all projects with the high level of security and data sovereignty required for the aerospace sector. We utilize the same "strategic flexibility" applied to our CUI protocols to ensure your project moves forward without regulatory friction. Currently, all testing and data handling is conducted via partnerships with U.S.-based entities or others fulfilling the core requirements of ITAR, ensuring that your technical data remains protected and compliant with federal standards.

Is my intellectual property (IP) protected?

Your intellectual property is the foundation of your competitive advantage, and we treat it as the most critical asset in any test campaign. We ensure your IP remains entirely yours through a combination of legal, physical, and strategic protocols.

Do I get my samples back?

Yes, we provide secure shipping of all post-test "charred" samples back to your lab for internal microscopy, cross-sectioning, and material analysis.

Does Baldwin provide quotes? If so, how long does it take?

Yes, we provide detailed quotes that include a full line-item breakdown of services. We understand that timing is critical for project planning and budget approvals. After a brief technical meeting to discuss your test matrix and sample requirements, we can typically deliver a formal quote within 1-3 business days.

How much does it cost to test?
We provide the most cost-effective arcjet testing available in the industry. By streamlining our operations and focusing on high-efficiency "test-as-a-service," we are typically able to offer pricing between 1/10th and 1/4th the cost of larger government facilities.