What the FY2027 request buys
Verbatim from the R-2A exhibit for project 634094 of PE 0603273F. This is the budget justification's own description of work that has not happened yet — the one thing no other level of the budget carries.
Accelerometer Development: - Continue strategic-grade, solid-state radiation-hardened guidance solution development and radiation component testing. - Continue preparations to deliver additional solid-state, high lateral acceleration (high-g) accelerometers for insertion into Inertial Measurement Unit (IMU) future architecture. - Complete building the solid-state, low-g accelerometer with integrated Application Specific Integration for insertion into IMU future architecture. - Complete delivery of the first set of solid-state, high lateral acceleration (high-g) accelerometers. - Commence preparations to deliver additional solid-state, low lateral acceleration (low-g) accelerometers for insertion into IMU future architecture. Gyroscope Development: - Continue laboratory experimentation of Resonant Fiber Optic Gyroscope (RFOG) electrical and optical components to inform the iterative development of ensuing RFOG design. - Continue risk reduction evaluation of RFOG components, including fiber improvement, radiation-hardened component development, and light source performance. - Complete final RFOG design trade studies and develop mechanical flight architecture. - Complete risk reduction evaluation of RFOG light source performance. - Complete design of next RFOG prototype iteration for future insertion into the IMU flight prototype. - Commence the design, build, and delivery of first form-fit-function RFOG prototype iteration for future insertion into IMU flight prototype unit. Inertial Measurement Unit: - Continue IMU development and maturation through the design, construction, and environmental testing of inertial sensor components in laboratory IMU prototypes. - Continue the acquisition of long-lead IMU components and continue bench-level characterization for the IMU system with maturing sensor designs. - Continue IMU radiation-hardening electronics design, construction, and risk reduction analyses to ensure progressive evaluation. - Continue covariance analysis improvements through sensor and system test data inputs to predict IMU performance. - Commence the build of the first IMU flight test unit. - Commence planning and integration of Guidance, Navigation, and Control (GNC) flight experimentation. - Commence trade evaluation of optical navigation technologies and other navigation aids.
This effort increases by $4.175 million from FY 2026 to FY 2027 due to growing requirements relating to the planning and delivery of a solid-state, low lateral acceleration (low-g) accelerometer for insertion into Inertial Measurement Unit (IMU) future architecture; experimentation and evaluation of optical navigation technologies; evaluation of supplemental navigation aids; and the building of the first IMU flight test unit.
FY2026: the year under way
Prior-year accomplishments and current-year plans from the same exhibit. Context for the FY2027 plan, not a series — an activity partitions its project exactly in the request year, but can under-cover it in earlier years.
Accelerometer: - Continue strategic-grade, solid-state radiation-hardened guidance solution development and radiation component testing. - Continue preparations to deliver a solid-state, high lateral acceleration (high-g) accelerometer for insertion into Inertial Measurement Unit (IMU) future architecture. - Complete design of solid-state, low-g accelerometer with integrated Application Specific Integration for insertion into IMU architecture. - Complete designing high lateral acceleration (high-g) accelerometer Application Specific Integration Circuits. - Commence building the solid-state, low-g accelerometer with integrated Application Specific Integration for insertion into IMU future architecture. Gyroscope: - Continue laboratory experimentation of Resonant Fiber Optic Gyroscope (RFOG) electrical and optical components to inform the iterative development of ensuing RFOG design. - Continue final RFOG design trade studies and develop mechanical flight architecture. - Continue risk reduction evaluation of RFOG components, including fiber improvement, radiation-hardened component development, and light source performance. - Complete the delivery of initial prototype testbed RFOG for insertion into IMU demonstrator. - Commence design of next RFOG prototype iteration for future insertion into the IMU flight prototype. Inertial Measurement Unit: - Continue IMU development and maturation through the design, construction, and environmental testing of inertial sensor components. - Continue the acquisition of long-lead IMU components and continue bench-level characterization for IMU system with maturing sensor designs. - Continue IMU radiation-hardening electronics design, construction, and risk reduction analyses to ensure progressive evaluation. - Continue covariance analysis improvements through sensor and system test data inputs to predict IMU performance.
Three years, and no five-year plan
An R-2A activity publishes the prior year, the current year and the budget year. The FYDP outyears exist at project and program-element level and are deliberately absent here rather than inferred. Estimate types are colored and never summed into one figure.
| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 12.6 |
| FY2026 | Enacted | 20.9 |
| FY2027 | Request | 25.0 |
This activity is 15% of project 634094's FY2027 request and 15% of PE 0603273F's. In the request year the activities under a project sum to it exactly; in the current year they under-cover it in about 9% of cases, so an activity's delta can legitimately exceed its parent's and the two must not be compared row to row.
4 activities in project 634094
Every R-2A line of this project, largest FY2027 request first. Linked where the activity has enough of its own narrative to carry a page; the rest are shown in full on the program-element page.