How ADL Embedded Solutions helped a top-3 global defense prime modernize an aging mission computer, on time, on spec, and fully compliant, before the hardware went dark.
Defense / Aerospace · Airborne ISR · MIL-STD-810 / 461 / 704 · COTS + Custom Integration
9 Months
Prototype to Production Delivery
DO-254
Airborne Hardware Design Assurance
Passive
Fully Passive Cooling No Fans · No Moving Parts
SWaP ✓
Enhanced Performance Within Legacy Envelope
the challenge
With the mission computer approaching end-of-life, the program had one option: deliver on time.
A top-3 global defense prime was facing a hard deadline: the mission computer at the heart of a fixed-wing ISR platform was approaching end-of-life, with critical components no longer available. A slip in schedule wasn’t just a program risk; it was an operational one.
The four constraints that defined the program:
Compressed Schedule
Obsolescence of existing hardware created a hard, non-negotiable go/no-go date. There was no path to an extension.
SWaP Constraints
The legacy airframe allowed zero increase in Size, Weight, or Power. The new system had to outperform within an identical envelope.
Multi-Standard Compliance
The system had to be engineered to pass MIL-STD-810 (shock and vibration), MIL-STD-461 (EMI/EMC), and MIL-STD-704 (aircraft power), with ADL responsible for the design and any corrective engineering required to achieve a passing result.
Custom I/O Requirements
Unique mission sensor parameters demanded a custom I/O module. No off-the-shelf interface solution could meet the specific integration requirements.
The Solution
With a COTS-first architecture and full program ownership, ADLES compressed a multi-year qualification cycle into 9 months.
Platform: MES9200-P1P · Custom Faceplate · Custom I/O Module · All Other Components COTS
ADL selected the proven MES9200-P1P COTS rugged chassis as the system foundation and made a deliberate engineering decision early in the program: minimize custom components to only what the mission absolutely required. The result was a solution with just two custom elements — a modified faceplate to satisfy the legacy airframe’s interface requirements, and a purpose-built I/O module engineered to the mission’s specific sensor parameters. Every other component in the system is COTS.
This wasn’t a cost-cutting measure — it was a systems engineering discipline. An agile, COTS-first architecture meant a shorter qualification path, a more manageable BOM, reduced long-term supportability risk, and a faster route from prototype to production. The inherent flexibility of a predominantly COTS solution also means the platform can be adapted to future program requirements without starting from scratch. It is also a direct explanation for how a program with this level of compliance complexity was delivered in 9 months.
A key enabler of both schedule and long-term reliability was ADLES’ innovative holistic design approach — integrating thermal, mechanical, and electrical requirements as a unified system from the outset rather than solving them in sequence. This discipline made a fully passive cooling solution achievable within the existing SWaP envelope: no fans, no moving parts, and no new failure modes introduced into a vibration-intensive airborne environment. Passive thermal management also directly supported MIL-STD-810 qualification, eliminating an entire class of mechanical reliability concerns before testing began.
The customer conducted formal qualification testing across three demanding MIL standards. ADLES’ responsibility was to engineer the system to pass — and to identify and implement corrective fixes whenever testing revealed issues, keeping the qualification program on schedule:
| MIL-STD-810 | Environmental engineering — shock and vibration testing to ensure survivability in operational airborne conditions. |
| MIL-STD-461 | Electromagnetic interference and compatibility — ensuring the new system neither emits nor is susceptible to EMI in the densely instrumented ISR airframe environment. |
| MIL-STD-704 | Aircraft electric power compliance — the system had to operate reliably across the full range of airborne power quality conditions including transients, sags, and surges. |
Running qualification across all three standards concurrently with hardware development, rather than sequentially, enabled a 9-month prototype-to-delivery cycle: first prototype in March, production start in September, and full system delivery in December.
Outcomes
With the deadline met and qualification complete, the program delivered without an operational gap.
- The program met its hard deadline. A fully qualified mission computer replacement was delivered before the hardware end-of-life date, preserving an active ISR program with zero operational gap.
- Qualification was achieved across all three MIL standards — MIL-STD-810, MIL-STD-461, and MIL-STD-704 — with ADL identifying and resolving design issues throughout the customer's testing program to maintain schedule.
- The flexibility of the delivered solution has proven broad enough that the customer is actively inserting ADL into additional programs — the strongest possible validation of the engagement.
“ADL took ownership of a genuinely complex program — tight schedule, multiple MIL standards, legacy platform constraints — and delivered. The flexibility of the solution has made it directly applicable to other programs, and we’re actively working to expand its use.”
— Program Manager, Top-3 Global Defense Prime · [Name withheld pending approval]
Why ADL Embedded Solutions
With full-scope ownership from requirements to delivery, ADLES brings rugged embedded expertise to the programs that can’t afford to slip.
ADL Embedded Solutions specializes in rugged, purpose-built embedded computer systems for defense, intelligence, and aerospace applications. Founded in 1994 and headquartered in San Diego, CA, ADL Embedded Solutions takes full engineering ownership — from initial requirements through qualification and production — on programs where legacy constraints, modern performance demands, and rigorous compliance standards converge.
Disciplined COTS-First Architecture
ADL engineers to the minimum necessary customization. Fewer custom components means shorter qualification cycles, lower program cost, and a cleaner long-term support story.
In-House Compliance Expertise
Thermal, mechanical, and electrical requirements are integrated from day one — not solved in sequence. This approach enables passive cooling solutions that improve reliability and accelerate qualification.
Holistic Thermal Design
ADL engineers to the minimum necessary customization. Fewer custom components means shorter qualification cycles, lower program cost, and a cleaner long-term support story.
True Engineering Partnership
We work in close collaboration with your team from requirements through delivery, taking full ownership of design, qualification, and production under one roof.
