Revolutionizing Military Fuel Recovery

Engineering innovation transforms hazardous aircraft defueling into a sealed, safe operation
The Defense Logistics Agency (DLA) partnered with Spokane Stainless Technologies (SST) to fundamentally reimagine military fuel recovery. Through design-thinking sessions and iterative engineering with Air Force maintenance crews, SST developed the SealVac system—a breakthrough technology that eliminated fuel spills, protected personnel from vapor exposure, and standardized operations across global military installations.

Project Overview

Client Name: Defense Logistics Agency (DLA)

Industry: Defense / Military Logistics

Location: Military installations worldwide

Project Scope: Redesign aircraft defueling operations to eliminate fuel spills, reduce environmental contamination, and improve personnel safety across DLA facilities.

Solution Provided: Spokane Stainless Technologies engineered and delivered the SealVac system—a vacuum-based fuel recovery technology that creates sealed connections at aircraft drain points, transforming fuel recovery from an uncontrolled gravity process into a precision extraction operation.

The Challenge

DLA, one of the world’s largest logistics organizations, manages fuel operations supporting every branch of the U.S. military. Aircraft defueling relied on gravity drainage—a slow method that routinely spilled fuel onto runways, causing significant waste and contamination. Maintenance crews used basic hoses with no containment or coordinated system, leading to repeated failures.

The hazards were immediate and severe: aviation fuel contaminated tarmacs, created dangerous vapor clouds, threatened personnel safety, and violated strict EPA regulations. Beyond safety risks, millions of dollars in fuel were lost annually to evaporation and environmental contamination across global operations.

The initial request—build a mobile bowser with a funnel to collect draining fuel—would have only treated a symptom. A real solution required rethinking how military aviation installations recover and manage fuel.

The Solution

SST engineers approached the project as process partners, collaborating directly with Air Force maintenance crews through multiple rounds of prototyping and field testing. The result was the SealVac system, featuring:

  • Specialized vacuum tools generating 17 inches of Hg vacuum pressure to create hermetic seals before fuel transfer begins
  • Dual-vacuum architecture providing redundancy: one circuit at 8 inches of Hg for fuel collection, another powering drain tool adherence
  • ASME-certified pressure vessels with automatic 90% shutoff mechanisms
  • Static bonding systems exceeding military explosive-atmosphere requirements
  • Compatibility with multiple aircraft platforms for standardized deployment

This system transformed fuel recovery from a containment issue into a controlled extraction process—capturing fuel before it could spill rather than after.

The Results

Key performance indicators highlighting project success:

  • Virtual elimination of personnel exposure to aviation fuel vapors through sealed transfer process
  • Complete elimination of routine fuel spills and tarmac contamination
  • Environmental compliance transformed from constant concern to routine operation
  • Recovery of fuel previously lost to evaporation and contamination
  • Standardized fuel recovery procedures across DLA’s global footprint
  • Simplified training with consistent safety protocols regardless of location
  • Organic adoption across military services as personnel became advocates
  • Units requesting SealVac systems in deployment packages for forward operating bases

The success of this initiative reinforced a core lesson: initial requests rarely reflect the full need. By moving beyond the bowser-and-funnel request to understand operational context, SST delivered a solution that transformed an entire process rather than improving a single component—and sparked a full reevaluation of fuel handling across military aviation.

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