Imperial College London Hypersonic Wind Tunnel (HS1)
Partially verified listing. The inspected original page and linked undated data sheet support distinct documented configuration and methods, but their conflicting or dated status statements do not resolve current operation, availability or all installed rigs.
Imperial College LondonLondon
NWTF identifies Imperial College London’s HS1 hypersonic tunnel in London. The page and linked data sheet agree on its documented nominal Mach 9 nitrogen configuration and describe pressure, optical and transition research methods. Conflicting status statements mean present operation and access remain unknown.
Reviewed by Arc · About this review
Key facts
- Documented source identity
- The linked NWTF data sheet labels the tunnel HS1 and identifies Imperial College Aeronautics as owner in London.
Testing capabilities
Documented hypersonic measurement methods
The HS1 sources describe high-speed Schlieren imaging, surface-pressure measurements, hot films and thermographic liquid crystals, with a 64-channel high-speed data-acquisition system. These are documented methods; their present availability requires confirmation.
Shock interaction and transition research rigs
The documented rigs address shock-wave and boundary-layer interaction using axisymmetric compression-ramp or cowl arrangements, cone transition and cavity-flow studies. Confirm the rig and diagnostics that can currently be used.
Equipment and published limits
| Specification | Published value | Conditions |
|---|---|---|
| Documented working section | 0.6 m diameter × approximately 1 m length | The page gives 1 m length and the linked sheet gives approximately 1 m. This is a documented apparatus envelope; present configuration and model acceptance remain unknown. |
| Documented nominal configuration | Mach 9; nitrogen working gas | Both inspected sources agree on the nominal configuration. This is not confirmation of present operation, an available test condition or a booked run. |
| Documented facility arrangement | Intermittent impulsive facility | The documented designation describes the apparatus and does not resolve the conflicting operating-status statements. |
Access and contact
The exact NWTF facility page provides a “Get in contact to learn more” link to the official NWTF contact route. Ask about present operation and the documented configuration before making a test plan.
Facility contact
- Address
- London
- Website
- Official test house website
Standards and accreditation
Public information not available. Contact test facility provider for more information.
What to confirm with the facility
- The NWTF facility page labels HS1 “Undergoing maintenance”, while the linked undated data sheet labels it “Operational”. The page also carries a message about availability in 2021. The inspected originals do not resolve present operating status or access.
- Both sources label PIV and PLIF as under development. This guide does not treat those techniques as established operational capabilities.
- Confirm the present operating status, exact configuration, diagnostics, test suitability, reporting, access and quotation directly through the official enquiry route.
Before requesting a test
Public information not available. Contact test facility provider for more information.
Frequently asked questions
Public information not available. Contact test facility provider for more information.
Related testing facilities
HS1 has documentary pressure, Schlieren and transition methods, but maintenance/operational and 2021 availability statements conflict. Planned PIV/PLIF is excluded.
No additional facility recommendation is made. Use the further reading links to review the relevant scope.
Further reading
Sources and review
Arc read the exact NWTF facility page and linked undated data sheet on 13 October 2026. The guide preserves the documented configuration and methods with visible source/status conflicts. It does not resolve present operation or access.
Arc publishes this directory entry and does not operate the test facility. Suggest a correction to Arc with a supporting source.
Exact HS1 page provides identity, London location, nominal nitrogen/Mach 9 configuration, methods and enquiry link. Page modification metadata is 3 October 2022; actual source review was 13 October 2026. Its maintenance and 2021 availability messages do not resolve current operation.
Imperial College Hypersonic Gun Tunnel HS1 data sheet (undated)
Undated exact HS1 data sheet agrees on the nominal nitrogen/Mach 9 configuration and apparatus/methods. Its “Operational” label conflicts with the facility page, and PIV/PLIF remain under development.