Design
The Design Office has over 50 years experience in the design of wind tunnel models and related equipment. The combined experienced of the permanent design staff total some 80 years and covers a wide range of model types and rigs both for conventional and cryogenic wind tunnels worldwide. These include:
- Complete and half models
- Civil and military models
- Turbofan & propeller simulation systems
- Engine intake & exhaust rigs
- Aircraft stores
- A wide range of force measuring balances (main model, store, rotary, control surface)
- Wind Tunnel hardware and other specialist rigs
During much of its life, ARA has been required to provide turnkey projects, culminating in the model design being tested in its’ own large TWT. Consequently, a design culture has evolved and developed that is sympathetic to the needs of the tunnel test process. Consequently, ARA models incorporate best practice design criteria as standard, namely:
- Minimum number of fasteners
- Common material grades throughout a cryogenic model
- Hidden pressure plotting – minimum surface interference
- Substantial joints for accuracy and repeatability of model assembly
- Re-usable seals to reduce filling/sealing times
- Minimal use of filler materials e.g. cover plates
- Modular model design for quick access to instrumentation
Model build and rigging requirements are always carefully considered during the design process.
