Iron Lake Reliability closes the reliability loop: a MIL-HDBK-217F / NSWC-11 reliability prediction feeds the Reliability Block Diagram, becomes the Bayesian prior that test and field data update, and Monte Carlo checks system reliability against the requirement. It also is a free Weibull calculator for life-data analysis: right-censoring, two-parameter β and η, Arrhenius accelerated life testing, and reliability demonstration (RDT), not a PDF/CDF plotting tool.