Bell has announced the completion of upgrades on the first two H-1 family helicopters under the U.S. Marine Corps’ SPINE program (Structural and Power Improvements for NextGen Effects), which focuses on enhancing the airframe and powerplant to support NextGen capabilities. The upgraded aircraft, an AH-1Z and a UH-1Y, have already left the assembly center in Amarillo, Texas.
The program was previously known as SIEPU (Structural Improvement and Electrical Power Upgrade) but was later renamed. The new designation emphasizes the modernization’s goal of improving survivability and combat effectiveness throughout the helicopters’ operational lifespan.
After completing the upgrades, the helicopters departed Amarillo for the Patuxent River Naval Air Station, where they will undergo further flight testing. These tests are intended to determine the final configuration of the SPINE program, which will then be refined and delivered to the U.S. Marine Corps under future contracts.
The SPINE program will enable H-1 helicopters to integrate the latest weapon systems and other emerging technologies. It is part of a broader H-1 modernization strategy aimed at enhancing combat effectiveness and survivability by improving existing capabilities.
“Completing the upgrades on these first two helicopters under the SPINE program is a significant milestone for us,” said Scott Sims, H-1 Program Director at Bell. “At Bell, crew safety and helicopter effectiveness remain our top priorities in everything we do. These updates ensure that our H-1 helicopters remain among the most capable in the market and can perform modern mission requirements. They will continue to carry out the roles they were designed for successfully for many years to come.”
The modernization work began at Bell’s Powertrain Center and Current & Depot Maintenance Center. The final phase, which involved updating the electrical systems and airframe, lasted 19 months and was conducted at the Amarillo assembly site. The successful completion of this project reflects years of collaboration between the U.S. government, Bell, and industry partners. This milestone lays the foundation for the program’s continued development, with Bell planning to upgrade the H-1 helicopter fleet in service with the U.S. Marine Corps over the next decade.
“In a competitive environment where the H-1 operates and demonstrates high effectiveness, it is essential to remain capable against current and future threats and to perform successfully in any operational setting,” said Daniel Markham, Bell Program Manager. “The SPINE program represents the next step in the evolution of the H-1, providing the platform with structural strength, electrical power, and a digital foundation needed for full integration into modern joint forces.”
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Source: Bell Textron press release
