Lead end‑to‑end technical efforts: refine requirements, define test objectives, author methods of test, and oversee execution for ground and flight activities; ensure data collection plans, instrumentation needs, and analysis methods will yield valid, decision‑quality results. Direct mission planning and post‑mission analysis using accepted T&E processes, models/simulations, hardware‑in‑the‑loop, measurement facilities, and open‑air ranges; synthesize findings into briefings, letter reports, and formal technical reports.