Advisory Services
Cabin Specification
& Engineering Review
Turning an owner’s brief into a specification a completion centre can price, build and certify — and testing every design decision for weight, range, maintainability and resale before it is frozen.
Specification Advisory
Every Design Choice Has a Technical Price
A VIP cabin is a set of engineering trade-offs presented as a design. A stone floor, a larger shower, an extra crew rest or a wider stateroom each carries a consequence — in weight and range, in electrical, water and cooling capacity, in certification effort, and in what the cabin costs to maintain for the next twenty years.
Aviation Asset Advisors provides the owner’s engineering view during design. We do not replace your interior designer. We work alongside them so that the cabin they draw is one a completion centre can price accurately and an authority can approve, without late redesigns that cost months.
The result is a specification written to be enforced: measurable, complete, and tied to acceptance criteria that carry straight into the completion agreement.
Process
From Brief to Frozen Specification
Ownership and mission brief
How the aircraft will really be used: typical sector length, passengers and crew, private or government role, security and communications needs, and the expected holding period.
Feasibility and trade study
Layout options assessed against operating empty weight, range at typical payload, the cabin certification basis, and the aircraft’s electrical, water and cooling capacity.
Specification drafting
A system-by-system specification — monuments, galleys, lavatories, cabin management, connectivity, lighting, seating, materials and finishes — with acceptance criteria for each.
Owner-side design reviews
Review of the completion centre’s preliminary and critical design packages, checking that drawings reflect the specification and flagging every deviation.
Certification pathway
Confirming the approval route and the registry the aircraft will operate on, so certification is planned at the start rather than discovered at the end.
Controlled design freeze
After freeze, every change runs through formal change control with its cost, weight, schedule and certification impact stated before the owner decides.
Engineering Tests
What Every Design Is Tested Against
Weight & Performance
- Operating empty weight budget
- Range at mission payload
- Centre-of-gravity envelope
Systems Capacity
- Electrical load analysis
- Potable and waste water capacity
- Cooling and HVAC for cabin heat loads
Certification
- Flammability and heat-release requirements for materials
- Dynamic (16g) requirements for seats and monuments
- Emergency egress, lighting and signage
Lifecycle
- Maintenance access and inspection panels
- Spares strategy for bespoke components
- Effect on resale and re-registration
Expensive Later
Design Decisions That Cost the Most Later
Each is easy to fix on paper and expensive to fix in metal.
- Natural stone and heavy veneers chosen without a weight budget
- Bespoke components from a single supplier with no spares strategy
- Connectivity and entertainment hardware frozen so early it is dated on delivery
- Showers and large water systems that drive tank size, weight and certification effort
- Layouts tailored so closely to one owner that they shrink the market at resale
- Changes made after the critical design review
Questions
Frequently Asked Questions
How is this different from hiring an interior designer?
The designer is responsible for how the cabin looks and feels. We are responsible for whether it can be built, certified and maintained at the weight, range and budget the owner expects, and for a specification the completion centre can be held to.
Can a cabin be designed for resale as well as for the current owner?
Yes. Conventional layouts in the zones that buyers value, combined with personalisation in finishes and loose equipment, protect resale without compromising the owner's use. We assess each layout option for its effect on the future market.
Which certification route applies to a VIP interior?
It depends on the aircraft, the registry it will operate on and the scope of the modification. Interiors are commonly approved by Supplemental Type Certificate and then validated by other authorities where needed. We map the route at the feasibility stage.
How much range does a VIP interior cost?
It depends almost entirely on weight. Every kilogram added to the cabin is payload or fuel the aircraft can no longer carry, so we model each layout against the owner's real missions before the design is frozen.
When should engineering review start?
Before completion centres are asked to bid. The specification drives the bids, so a weak specification produces bids that cannot be compared and a contract full of change orders.
Related Advisory
Often Engaged Together
Define Your Cabin
Define Your Cabin
Whether you have a detailed brief or an early idea, we can build the specification that makes it buildable, certifiable and fairly priced.
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