NTRAF section 2 and section 3.5 / Prototype development

What TRL 5 means

Basic components are integrated with reasonably realistic supporting elements and tested in a simulated environment.

Criteria reviewers look for

• Subsystem interfaces are realistic.
• High-fidelity lab integration is complete.
• Assembly needs and lifecycle cost are assessed.

Evidence examples

• Prototype validation report
• Interface test report
• Lifecycle cost analysis

Next action

Build and test an engineering or pilot-scale prototype outside the lab.