DIRECT TO PHASE II: Edge-Deployed Explainable Digital-Twin Condition Based Maintenance CBM+ Platforms for Carrier-Based Systems

**Changes to Q&A Section:** Added 1 new question (Q1) clarifying that Phase II demonstration is expected to remain in test-site/laboratory environment during base period—shipboard installation with cybersecurity authorization is not required within Phase II base period. Questions 2-4 were renumbered from previous Q1-Q3; all answers remain unchanged.

**Added comprehensive answers to Q1-Q2; Q3 remains unanswered.** Q1 answered: Self-funded commercial work outside naval aviation acceptable if technically mappable to AAG; innovation focus left to offerors (both Digital Twins and plug-and-play API valued); existing AAG software is binary safety gate with motor and water-twister sensors. Q2 answered: One award expected (direct-to-Phase-II); government provides schematics and existing data post-award; edge-only operation required (no cloud/data-link dependency); synthetic/subscale demonstrations acceptable; transition owner is PMA-251 for CVN-78 implementation. Q3 still pending all eight sub-questions on data availability, sensor specs, failure priorities, ground truth, digital-twin fidelity, prognostics scope, HMI requirements, and LRU isolation standards.

**Key Changes to Q&A:** Added Q1 (3 questions) addressing feasibility documentation acceptance, evaluation priorities between digital twins vs. plug-and-play API capability, and current baseline tools. Added Q2 (7 questions) covering award quantity, government-furnished data/environments, evaluation metrics, use of synthetic data, hardware constraints, and transition ownership. Q3 retained original 8 technical questions on AAG data, sensors, failure modes, ground truth, digital-twin fidelity, prognostics definition, explainability, and LRU requirements—now with clarified focus on ALRE subsystems beyond AAG.

Status changed from Pre-Release to Open

This Q&A clarifies eight critical technical requirements for Phase II proposals: applicants must understand what AAG data, sensor specifications, and failure modes the Government will provide; what ground-truth maintenance records exist; expected digital-twin modeling depth; specific prognostics outputs needed; and LRU isolation accuracy standards—enabling more targeted and realistic technical approaches.

New opportunity: DIRECT TO PHASE II: Edge-Deployed Explainable Digital-Twin Condition Based Maintenance CBM+ Platforms for Carrier-Based Systems