Understanding the “Design Quotient” before you commit.
If you’ve ever wondered, “How long should the design phase take on a refurbishment project?” You’re not alone. Pilots, owners, and maintenance managers ask me that all the time.
It’s a smart question. You’re managing expectations—budgets, downtime, scheduling—and you want to be sure you’re not cutting corners on the part of the process that brings your vision for the aircraft to life—the way it looks, the impression it makes, and the value it holds over time.
But here’s the catch: The answer varies. And why it varies is the key to getting the outcome you want.
What the “Design Quotient” Means.
Every refurbishment center has a Design Quotient—the amount of weight and time they allocate to design within the overall project.
In an ideal world, design is a protected phase: It’s scheduled, resourced, and respected. But in the real world, you’re likely to find it compressed between your deposit and your input date. Treated as a to-do item instead of a strategic step.
That difference isn’t about right or wrong. It’s about priorities. Many centers are production-driven by nature. They’re built to keep aircraft moving efficiently through the hangar. But design doesn’t thrive under the same clock as production. It needs time for exploration, communication, and refinement.
When that time disappears, so does much of what makes a cabin exceptional.
Most refurbishment centers genuinely believe they’re optimizing efficiency when they set schedules. Production timelines are mapped down to the day by shop leads, scheduling, and sales. But here’s the irony—design is often the only part of the process not formally accounted for. There’s rarely a defined window for concept development, material sourcing, or iteration. Just a milestone for material approval.
By the time you make your deposit, the schedule is locked in. The clock is already ticking, and design becomes the miracle phase everyone hopes will fit.
What Actually Drives the Timeline
In most production environments, the design phase isn’t a scheduled stage so much as a flexible gap between sales and start date. That gap may look generous on paper—until your designer gets pulled into another project, multiple people on your team need to sign off on revisions, and custom samples and change cycles start eating into it.
So, when you ask, “How long should design take?” The answer isn’t a universal number – it’s shaped by several variables. Here are four that usually tell the story:
- Schedule: Is design time formally blocked into the project plan—or squeezed into what’s left?
- Staffing: How many projects does the designer have on their plate, and who protects their time?
- Tools & Materials: Will 3D visualizations be used only for final approval of already approved materials, or will they be utilized throughout the process as a key design tool?
- Authority & Process: Does the designer have a manager with decision-making power, or do they report directly to sales?
These details reveal whether your project is set up for thoughtful consideration or merely efficient production. They also help explain why two refurbishment centers can quote completely different timelines for what appears to be the exact scope of work.
If you’re comparing refurbishment centers, it helps to go a step further. I’ve put together a free Buyer’s Guide that outlines five key areas to evaluate—plus specific questions you should ask—and signs that reveal how Design is prioritized at each center.
Why Design Time Works Differently.
Everyone in aviation understands the value of time. Downtime means dollars— but design time plays by different rules.
It’s not just the gap between your deposit and your completion date— it’s the stretch of the project where ideas are explored, tested, refined, and brought into alignment with how the aircraft is actually used. Design is both creative and technical, and that blend simply can’t be rushed without consequence.
Think of it this way: Design time is the kitchen, not the dining room. It’s where ingredients are sourced, flavor is balanced, and presentation comes together. You can have a world-class chef, but if you only give them 10 minutes and a microwave, you’re getting a sad hot dog with some fancy relish—not a Michelin-star meal. The same applies to design. Even the best designers need time, tools, and space to explore options before presenting the final product.
When the design window is respected, small decisions —such as contrast, accents and trim, patterns and textures, stitching details, and surface finishes — come together into a cohesive whole. When it’s squeezed, compromises creep in quietly and show up later in comfort, quality, and resale value.
When design time isn’t formally accounted for, the pressure shows up elsewhere. Not in the schedule—but in the symptoms.
Red Flags You Won’t See on a Facility Tour
There’s no simple formula or “right number” of weeks for design. Every aircraft, every owner, and every designer is different. What matters most is whether design has been a part of the scheduling conversation from the start—surveying what’s needed to meet the customer’s expectations and ensuring that time is truly built into the project.
If design time isn’t formally built into the production plan, you’ll see the signs: rushed selections, limited options, or last-minute substitutions that signal design is being squeezed out of the process.
Most warning signs are invisible at first glance. You won’t see how many projects your designer is juggling, or how much influence they have once production begins. That’s why it helps to go beyond the walk-through and ask direct, informed questions.
Want to know what questions to ask? Download the Buyer’s Guide here and take it with you before you commit to your project.
Everyday vs. Exceptional
“Everyday” design gets the job done. “Exceptional” design holds up over time because it was given the right attention, expertise, and patience.
Even modest design-time extensions can have an outsized impact—elevating quality, deepening comfort, and shaping the mood and memory of every flight.
And of course, if you’re working with an independent designer, design is their entire focus. (Let’s just say their Design Quotient is… pretty high.)
My point isn’t to make the case for one approach over another— it’s to help you see how the structure and timing of design directly affect the results you’ll see on board.
Final Thought
Every refurbishment center has a Design Quotient. Some emphasize efficiency— others protect design as part of the process. The important thing is knowing which approach you’re signing up for and ensuring it aligns with your expectations for the aircraft.