SAFE Structure Designs Delivers Custom Tooling for US Army CH-47 Chinook

This article is based on an official press release from SAFE Structure Designs.

SAFE Structure Designs has successfully delivered a custom aviation maintenance tooling suite for the U.S. Army’s new Boeing CH-47 Chinook Block II helicopter fleet. According to a company press release, the specialized equipment is designed to safely remove, inspect, pressure-test, and reinstall the aircraft’s fuel cell systems, ensuring strict operational readiness standards are met.

The Las Vegas-based defense engineering and manufacturing company secured the contract after a previous supplier failed to meet the Army’s technical and budgetary requirements. SAFE reportedly engineered and manufactured the replacement solution rapidly, delivering the new system ahead of schedule and under budget. This delivery ensures that Army aviation maintenance teams can efficiently service the upgraded heavy-lift helicopters without unnecessary aircraft downtime.

As the U.S. Army modernizes its heavy-lift capabilities for future large-scale combat operations, the demand for specialized support equipment has become increasingly critical. We note that this delivery highlights the importance of agile secondary engineering firms in maintaining operational readiness when initial supply chain nodes falter.

The Maintenance Tooling Suite

Purpose and System Components

The primary purpose of the newly delivered tooling suite is to allow Army aviation maintenance teams to efficiently and safely service the fuel cell systems of the CH-47 Block II aircraft. According to the official release and supporting defense industry data, the suite comprises several purpose-built components designed to streamline the maintenance process.

Key components of the system include:

• Fuel Cell Removal and Installation Cradle: A specialized cradle that securely houses the fuel tank. This allows technicians to safely perform necessary inspections and servicing while the cell is completely removed from the helicopter.
• Pressure-Testing Tool: A dedicated diagnostic device that enables maintainers to test the fuel cells for leaks, cracks, or other structural integrity issues prior to reinstallation.
• Custom Spreader Bar: This component is equipped with specialized lift attachments to facilitate the safe and balanced removal and installation of the heavy fuel cells.

Contract Background and Execution

The procurement of this tooling suite underscores the rigorous demands of military contracting. SAFE Structure Designs was awarded the project only after the initial contractor’s designs were rejected.

The initial contractor’s designs were deemed poorly engineered, exceeded budget expectations, and failed to meet the needs of Army aviation maintenance personnel.

Following this setback, SAFE was brought in to rectify the situation. The company leveraged its engineering capabilities to produce a viable replacement solution, ultimately delivering the critical maintenance equipment to the Army ahead of the revised schedule and below the anticipated budget.

Contextualizing the CH-47 Chinook Block II Program

Aircraft Upgrades and Capabilities

To understand the necessity of this specialized tooling, it is essential to look at the aircraft it supports. The CH-47 Block II is the centerpiece of the U.S. Army’s heavy-lift modernization strategy. According to U.S. Army program outlines, the Block II iteration features a strengthened airframe, an upgraded drivetrain, and an enhanced fuel system.

These structural and mechanical upgrades increase the helicopter’s maximum gross weight by 4,000 pounds, bringing it to a total of 54,000 pounds. This enhanced capacity allows operational commanders to transport more troops, heavy equipment, and fuel over significantly longer distances compared to legacy models.

Army Procurement and Rapid Fielding

The U.S. Army has aggressively pursued the integration of the Block II fleet. In late 2025, the Army authorized a “Rapid Fielding” effort to procure CH-47F Block II aircraft utilizing Fiscal Year 2025 and 2026 funds. Defense procurement records indicate that the Army plans to equip two combat aviation brigades (CABs), which will require a total of 24 aircraft.

Recent contract awards further illustrate this momentum. In October 2025, Boeing received two contracts (Lots 4 and 5) valued at $461 million to produce nine additional CH-47F Block II helicopters, bringing the total number on order to 18. Furthermore, the FY2026 defense budget includes funding for six CH-47F Block II helicopters and five MH-47G Block II variants, which are utilized by special operations forces.

SAFE Structure Designs’ Track Record

Previous Chinook Support Equipment

Based in Las Vegas, Nevada, SAFE Structure Designs specializes in mission-critical military support equipment, aviation maintenance systems, and expeditionary platforms. The company is led by President and CEO Johnny Buscema, who frequently emphasizes American manufacturing principles in corporate communications.

The company has an established history of providing specialized equipment for the Chinook platform. In 2022, SAFE delivered custom, ergonomic fall-protection maintenance platforms to the Army at Fort Hood. These platforms allowed technicians safe access to all areas of the CH-47F fleet during routine and heavy maintenance.

More recently, in September 2024, the U.S. Army issued an airworthiness memorandum for SAFE’s patented 360-degree Extended Range Fuel System (ERFS) tank roller system. According to defense industry reports, this system facilitates the safe loading and unloading of heavy 500-gallon and 800-gallon auxiliary fuel tanks into the CH-47 cargo hold.

AirPro News analysis

The transition of the CH-47 Block II tooling contract to SAFE Structure Designs highlights the layered and sometimes volatile nature of defense supply chains. When primary or initial niche suppliers fail to meet technical standards, agile secondary engineering firms are required to step in to maintain operational readiness and prevent broader program delays.

Furthermore, as the Army modernizes its heavy-lift fleet for future large-scale combat operations, the demand for specialized, high-value support and maintenance products becomes just as critical as the procurement of the aircraft themselves. Efficient maintenance tooling directly impacts the sortie generation rate and the overall lifecycle cost of the Block II fleet. Without reliable ground support equipment, even the most advanced rotorcraft cannot maintain the operational tempo required by modern combat aviation brigades.

Frequently Asked Questions

What is the CH-47 Block II?

The CH-47 Block II is the latest upgraded version of the U.S. Army’s heavy-lift Chinook helicopter. It features a strengthened airframe, an upgraded drivetrain, and an enhanced fuel system, increasing its maximum gross weight to 54,000 pounds.

What does the new SAFE Structure Designs tooling suite do?

The custom tooling suite allows Army aviation maintenance teams to safely remove, inspect, pressure-test, and reinstall the fuel cell systems of the CH-47 Block II aircraft. It includes a removal cradle, a pressure-testing tool, and a custom spreader bar.

Why did SAFE Structure Designs take over this contract?

According to industry reports, the initial contractor failed to meet the Army’s technical and budgetary requirements, producing designs that were poorly engineered. SAFE Structure Designs was brought in to engineer a replacement, which they delivered ahead of schedule and under budget.

Sources

• SAFE Structure Designs Press Release