RTA Rail Tec Arsenal

What RTA Rail Tec Arsenal does

RTA Rail Tec Arsenal Fahrzeugversuchsanlage GmbH operates the Vienna Climatic Wind Tunnel, a specialized climatic and icing testing facility located at the former Paukerwerk grounds in Vienna-Floridsdorf, Austria. Founded around 2002 as a public-private partnership, RTA was established by major European rail vehicle manufacturers, AIT Austrian Institute of Technology, and the Austrian public sector (via SCHIG mbH, the Republic of Austria, and the City of Vienna) with a €65 million facility investment. The company claims over 50 years of inherited climatic testing expertise from the original Arsenal facility and describes itself as operating Europe's largest and most unique climatic wind tunnel testing institute, with the world's longest climatic wind tunnel (100m test section, 300 km/h max wind speed, -45°C to +60°C temperature range) and the world's largest icing wind tunnel for aircraft certification testing.

RTA's core offering is project-based, enterprise B2B testing services delivered across four vertical segments: rail vehicles (primary), road vehicles, aviation (helicopter/UAV icing certification), and technical systems (façade/structural). The facility stack comprises a Large Climatic Wind Tunnel with 850kW rail roller rig, a Small Climatic Wind Tunnel with 250kW road vehicle dynamometer, a mobile icing rig convertible from either tunnel for EASA CS25/CS29 Appendix C and O certification (capable of testing engines up to 1.5 MW at full throttle, including whole helicopters), three preparation halls, two customer measurement rooms, and a soakroom. Customers are predominantly European rail OEMs (Siemens, Bombardier Transportation, Alstom, ÖBB, Wiener Linien) and aviation OEMs (Airbus Helicopters, Agusta Westland, NASA), with testing covering thermal comfort, functional/reliability, energy efficiency, aerodynamic, and icing certification use cases.

The business model is direct enterprise sales of professional services, with project-based quoting rather than published pricing. RTA reaches customers through trade fair appearances (Innotrans), biennial international technical workshops, facility tours, and direct engagement with OEM engineering teams. The company operates under a 35-year lease from SCHIG mbH and has expanded its physical footprint progressively — adding the Icing Wind Tunnel in 2014 (~€1.15M) and a third preparation hall plus modernized control room in 2020–2022. RTA is privately held with no public revenue disclosure, and is currently undergoing a leadership transition as founding Managing Director Franz Hrachowitz and Technical Director Gabriel Haller approach retirement.

Name

RTA Rail Tec Arsenal

Legal name

RTA Rail Tec Arsenal Fahrzeugversuchsanlage GmbH

Website

https://rta.eu

Company type

Private

Founded year

2002

Operating status

Operating

Headcount range

11–50 employees

Short description

RTA Rail Tec Arsenal operates Europe's largest climatic wind tunnel in Vienna, providing project-based environmental and icing certification testing for European rail OEMs, aviation manufacturers (helicopters, UAVs), and road vehicle makers. The facility is operated under a public-private partnership with a 35-year lease from SCHIG mbH.

Ownership category

akta.pro rank

Product category

Climatic & Icing Wind Tunnel Testing Services

NAICS

Support Activities for Rail Transportation (4882)

SIC

Services-Testing Laboratories (8734), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Military Aerospace Ground Support Equipment (GSE) & Test Systems (IMABAMAL)

akta.pro secondary industry

Rail Asset Inspection, Monitoring & Diagnostics (Track Geometry, Wayside Sensors) (TLAJADAG)

Keywords

• Climatic wind tunnel testing
• Rail vehicle testing
• Aviation icing certification
• Vehicle environmental testing
• Climatic simulation services

Headquarters

HQ city

Vienna

HQ country

Austria

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Infrastructure, Personnel, Operations, Technology or R&D, Marketing or Sales

Revenue model

1. Climatic Testing Services: Project-based testing services for rail vehicles, road vehicles, aviation, and technical systems. Testing includes thermal comfort investigations, functional tests, energy efficiency assessments, and certification testing. Services are priced based on project scope, test complexity, and duration.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

RTA Rail Tec Arsenal operates the Vienna Climatic Wind Tunnel, providing project-based climatic, icing, thermal comfort, energy efficiency, and aerodynamic testing services for rail vehicles, road vehicles, aviation components, and technical systems. The facility enables full-scale 1:1 testing under controlled extreme conditions (-45°C to +60°C, up to 300 km/h, solar/rain/snow/ice simulation) including EASA aviation icing certification. Testing services are delivered to international vehicle manufacturers and aviation companies at the company's Vienna headquarters.

Product overview

RTA Rail Tec Arsenal operates the Vienna Climatic Wind Tunnel, a world-leading testing facility specializing in climatic and environmental testing for the transportation industry. The facility consists of two distinct Climatic Wind Tunnels (Large CWT and Small CWT), both convertible to Icing Wind Tunnel (IWT) configuration via mobile icing rigs. These are supported by preparation halls, measurement rooms, and a soakroom. The company provides specialized testing services across four industry segments: rail vehicles (its primary focus), road vehicles, aviation (particularly helicopter and UAV icing certification), and technical systems. The facility is uniquely positioned as the world's longest climatic wind tunnel and largest icing wind tunnel, enabling full-scale 1:1 testing of vehicles and aircraft engines up to 1.5 MW at full throttle.

Differentiator

Problem solved

Functional benefit

Products and services

• Large Climatic Wind Tunnel (large CWT) Primary testing facility at the Vienna Climatic Wind Tunnel with a 100m test track, maximum wind speed of 300 km/h, and full climate simulation including solar radiation, rain, snow, and ice. Includes roller dynamometer for rail vehicle braking and traction tests. Used by rail vehicle manufacturers for full-scale climatic testing.
• Small Climatic Wind Tunnel (small CWT) Compact testing facility with 33.8m test track, temperature range from -45°C to +60°C, maximum wind speed of 120 km/h, and relative humidity 10-98%. Equipped with roller dynamometer for road vehicles (250kW drive/300kW brake), solar simulation, and rain/snow/ice systems. Used for road vehicle and smaller object testing.
• Icing Wind Tunnel (IWT) Specialized facility for aviation icing certification tests. Can be configured from either CWT by inserting a mobile icing rig. Supports EASA CS25/CS29 Appendix C and O certification testing, with capability to test engines up to 1.5 MW (2000 HP) at full throttle. Features include mass flow simulation, force measurement for lift/drag, and propeller-rotor test rigs.
• Rail Vehicle Climatic Testing Services Comprehensive testing services for rail vehicles including thermal passenger comfort evaluation, functional tests for mechanical/electronic/electrical/pneumatic components, energy efficiency assessment, aerodynamic measurements, and snow/ice/rain simulation. Target customers: rail vehicle manufacturers (Siemens, Alstom, Bombardier, ÖBB).
• Road Vehicle Testing Services Climatic comfort investigation and functional testing services for road vehicles using the small CWT with roller rig, including extreme weather condition testing for critical components. Target customers: truck, bus, and passenger car manufacturers.
• Aviation Icing and Climate Testing Services Specialized testing for aviation including EASA certification tests, icing tests with running engines, wing component tests with force measurements, propeller/rotor de-icing system certification, and structural tests at extreme temperatures. Supports UAV and helicopter component testing. Target customers: helicopter OEMs (Agusta Westland, Eurocopter/Airbus Helicopters), UAV manufacturers, and aircraft component suppliers.
• Technical Systems Testing Services Structural engineering and climatic testing services for construction applications including facades and roofs, as well as other technical systems requiring climatic certification. Target customers: construction companies and technical system manufacturers.

Quantifiable outcome

• Temperature range capability from -45°C to +60°C
• +2 more outcomes

Named customers8 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Four partnerships are on record, tiered core and minor.

• NASAcoreStrategic or Co-development PartnerRTA is the second organization in Austria to conclude an official cooperation agreement with NASA. The project-related propeller icing collaboration has been added to NASA's list of current space act agreements. RTA collaborates with US scientists on joint development projects in aircraft icing research.
• European Rail Vehicle ManufacturerscoreStrategic or Co-development PartnerRTA was founded by the most important European rail vehicle manufacturers, who are also shareholders and primary customers of the testing services.
• ADSE Consulting & EngineeringminorStrategic or Co-development PartnerRTA collaborates with ADSE Consulting & Engineering to offer the combination of climatic tests with energy efficiency analyses. ADSE contributes meteorological data analysis to calculate annual energy consumption based on climate at deployment location.
• AIT Austrian Institute of TechnologycoreStrategic or Co-development PartnerFormerly Österreichische Forschungs- und Prüfzentrum Arsenal GmbH, AIT co-founded RTA as a key stakeholder and contributes as a knowledge partner in research and development projects.

Scale indicators6 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Applus+ IDIADA: Applus+ IDIADA operates one of Europe's largest vehicle proving grounds and climatic/environmental test facilities, serving automotive and rail OEMs. It is a strong functional peer on testing services breadth and B2B testing-as-a-service model.
• DB Systemtechnik: Deutsche Bahn's testing subsidiary operates rail vehicle measurement and climatic test facilities in Germany. It is the closest functional peer to RTA for rail vehicle climatic testing and shares the same OEM customer base (Siemens, Alstom, Bombardier successors).
• ONERA: French aerospace research lab operating aero-thermal and icing wind tunnels for aerospace and defense applications. It is a functional peer on aerospace icing and propulsion testing for aircraft systems and engines.
• National Research Council Canada (NRC): Operates one of the world's few large-scale aircraft icing research wind tunnels. Comparable as a research-grade icing test facility serving aviation OEMs and certification programs, though government-funded rather than commercial.
• TÜV SÜD Rail: TÜV SÜD operates independent rail vehicle testing, certification, and assessment services across Europe. It competes with RTA for rail certification mandates and shares exposure to the same EU rail OEM and operator customer set.

Broad incumbents

• ALSTOM: Global rail OEM that operates its own climatic and certification test centers and is simultaneously one of RTA's largest customers. It is a captive-vertical incumbent and potential competitor as well as customer.
• Bureau Veritas: Global TIC incumbent with rail and aerospace industry services. Comparable as a broad testing/certification competitor, though its rail footprint is more inspection/auditing than full-scale climatic tunnel work.
• Siemens Mobility: Major rail OEM with in-house testing facilities and a long-standing RTA customer (Velaro, Talent 2, Railjet programs). Comparable as both a customer and a potential in-sourcing threat.
• DEKRA: DEKRA is a global testing, inspection, and certification (TIC) incumbent with rail and automotive divisions. It is broader in scope than RTA but overlaps in rail certification and vehicle environmental testing.

Others

• AIT Austrian Institute of Technology: RTA's co-founder and ongoing R&D partner (formerly the Austrian Research and Testing Center Arsenal). Not a commercial competitor, but the closest institutional peer for applied transport and energy research collaboration.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/rail-tec-arsenal

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about RTA Rail Tec Arsenal