Army Designing Upgraded, Next-Generation Stryker

Kris Osborn

Engineers from the U.S. Army and General Dynamics are making progress designing and implementing Engineering Change Proposals (ECPs) for Stryker vehicles, focusing on technologies that will provide the platform a stronger engine, improved suspension, more on-board electrical power, and next-generation networking and computing technology.

The Army’s fleet of more than 4,187 Strykers includes 10 variants of the flat-bottom platform and an additional seven variants of the double-V hull design. The fleet continues to maintain an overall readiness availability rate of more than 96 percent throughout operations in theater, Army officials said.

“We’re taking a leap forward to bring this platform to where it will benefit the Army for years to come,” said Steven Campbell, DA Systems Coordinator, Stryker.

Phase 1 of the Stryker ECPs will lead to a preliminary design review and the construction of a demonstrator vehicle next summer. Phase 1 includes key improvements to the platform designed to, among other things, improve the vehicle’s overall performance, computing, and onboard electronics capabilities.

The thrust of Phase 1 includes a clear focus on four specific technologies, including an electrical power upgrade designed to replace the current Stryker’s 570-ampere alternator with a more powerful 910-amp alternator, and an engine upgrade replacing the existing 350-horsepower (hp) engine with a stronger, 450-hp engine. The new engine, a commercial-off-the-shelf item, reflects an emphasis on acquiring technically mature capabilities.

“We’re using a Caterpillar C9 engine, a mature technology already in use. We will package this to fit inside the engine compartment and provide enough cooling for it to operate effectively,” said LTC Jim Schirmer, Product Manager Stryker.

“The Stryker ECP also includes a redesigned, stronger suspension that will improve vehicle mobility at higher weights, and an in-vehicle network giving the platform a ‘digital backbone’ able to improve data and video sharing between crew stations in the vehicle,” Schirmer explained.

The in-vehicle network will include a managed switch, intelligent software, display screens, and processing units, which will allow secure and reliable data sharing between the systems onboard the vehicle. This will also reduce the size, weight, and power requirements of the future systems integration of components on the vehicle platform.

“For example, data and video from the driver’s thermal viewer, odometer readings, Blue Force Tracker, One-System-Remote Video Terminals, and screens which show weapons and targeting-related information will all be shared seamlessly across the various workstations,” Schirmer said. “We have already started some of the early software development for this.”


A Stryker vehicle rounds a corner in a Taloqan District village, Takhar province, Afghanistan, Oct. 22, 2011, as SPC Josh Bates, a medic with 3rd Battalion, 21st Infantry Regiment, 1st Stryker Brigade Combat Team, 25th Infantry Division (1/25 SBCT), keeps watch. (U.S. Army photo by SSG Lindsey Kibler, 1/25 SBCT Public Affairs)

The in-vehicle network approach is grounded in “open architecture,” meaning that computing technologies, information technology systems, and electronics all will be built to a common set of technical standards, ensuring maximum interoperability. This set of standards, referred to as VICTORY, will enable a single computer or system to run a host of interoperable applications and functions. With the VICTORY architecture, the vehicle will be able to streamline and more easily exchange and transmit information, while ensuring that the maximum number of programs and applications are available on any given computer or display screen.

These areas of improvement for the Stryker are now being examined as part of an ongoing cost-benefit analysis, slated for completion later this year.

“The Army’s cost-benefit analysis will look closely at these four technology areas and determine the best way to get the most efficiency out of the dollars available to improve the platform. We want to make sure that we capture what we need to do, and do so within fiscal reality and other Army priorities,” said Norman Stuckey, DA Systems Coordinator, Stryker.

The Strykers receiving the ECPs will be better equipped to receive a host of new networking gear already being outfitted on vehicle platforms, including Warfighter Information Network – Tactical, a mobile satellite communications and radio network, and a next-generation force tracking application called Joint Battle Command – Platform, among other things.


  • KRIS OSBORN is a Highly Qualified Expert for the Assistant Secretary of the Army for Acquisition, Logistics, and Technology Office of Strategic Communications. He holds a B.A. in English and political science from Kenyon College and an M.A. in comparative literature from Columbia University.