This solicitation closed on June 24, 2026
View current Department of Defense opportunities →DIRECT TO PHASE II: Non-tactical Replacement of AN/UYK-43 in a Laboratory Environment
AI Overview
The Navy seeks development of a UYK-43 computer emulator using COTS hardware and open-source code to enable land-based testing of Aegis Weapon System updates, since original systems are reserved for operational fleet use and no compatible commercial alternative exists.
This summary is AI-generated from the official solicitation.
Key Details
Official Description
The AN/UYK-43 (UYK-43) computer system is used to run certain baselines of the Aegis computer program. The UYK-43 is no longer manufactured. Operational UYK-43’s and spare parts are prioritized for operational fleet use and not testing. The Navy needs a replacement for the UYK-43 to enable land-based testing as there is no commercially available computer that is compatible with or emulates the UYK-43.
The solution must be binary compatible, provide compatible input/output capabilities, and hav...
Change History
DIRECT TO PHASE II: Non-tactical Replacement of AN/UYK-43 in a Laboratory Environment
Opportunity DON26BZ02-DV052 no longer available
DIRECT TO PHASE II: Non-tactical Replacement of AN/UYK-43 in a Laboratory Environment
The government consolidated three related questions about I/O emulation, floating-point instruction accuracy, and timing requirements into reformatted Q&A entries with official answers. Key clarifications: (1) I/O subsystems must match latency/throughput precisely per BAA requirements, but detailed sensor/system characteristics not provided; (2) "binary compatible" definition remains undefined in BAA documentation; (3) UYK-43 test hardware is NOT guaranteed GFE—proposers must request and justify specific GFE needs; (4) TPOC will not provide additional guidance beyond BAA documents to maintain fair competition.
DIRECT TO PHASE II: Non-tactical Replacement of AN/UYK-43 in a Laboratory Environment
# Q&A Changes Summary Added Q2 and Q3 (2 new questions). Both address critical technical gaps: - **Q2**: Requests government documentation on UYK-43's non-standard 32-bit floating-point implementation, hardware bugs/schematics, instruction-by-instruction timing specifications, and status of parallel replacement programs. - **Q3**: Reiterates need for detailed FP instruction documentation (non-IEEE-754) and confirms whether emulation timing must match legacy hardware performance. **Key clarification sought**: Whether "binary compatible" requires bit-accurate FP calculations AND cycle-accurate instruction timing, and what technical documentation exists to support proposals.
DIRECT TO PHASE II: Non-tactical Replacement of AN/UYK-43 in a Laboratory Environment
# Summary This Q&A addresses technical challenges in emulating legacy fire control systems, seeking clarification on whether I/O subsystem emulation is required, the specific definition of "binary compatibility," and availability of test hardware as government-furnished equipment.
DIRECT TO PHASE II: Non-tactical Replacement of AN/UYK-43 in a Laboratory Environment
Status changed from Pre-Release to Open
DIRECT TO PHASE II: Non-tactical Replacement of AN/UYK-43 in a Laboratory Environment
New opportunity: DIRECT TO PHASE II: Non-tactical Replacement of AN/UYK-43 in a Laboratory Environment
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