Sub-system
A type certificate is a regulator's statement that a design meets the airworthiness requirements. Obtaining one takes years and produces a volume of analysis and test evidence comparable in cost to the engineering itself — which is why derivative aircraft are so much cheaper than new ones.
In one sentence
Type certification is the process by which an airworthiness authority approves an aircraft, engine or propeller design, having been shown that it complies with the applicable airworthiness requirements.
The process starts by agreeing what rules apply — the certification basis — including any special conditions for novel features the existing rules do not address. Compliance is then shown item by item through analysis, laboratory test, ground test and flight test, each with an agreed means of compliance.
Approval covers the design, the production system that builds it, and the instructions for continued airworthiness that keep it safe in service. Changes afterwards go through the same machinery in proportion to their significance, which is why a major change to a mature design can be nearly as expensive as it sounds.
Amending an existing type certificate reuses most of the compliance evidence, while a clean-sheet aircraft rebuilds it entirely. That is a powerful commercial incentive to derive rather than replace, and it is why families of aircraft persist for decades with successive re-engining and stretching rather than being replaced outright.
Authorities delegate much of the detailed compliance finding to the manufacturer's own approved organisation, because no regulator has the staff to check everything on a modern aircraft. That arrangement is efficient, it has been the subject of serious scrutiny, and the balance between delegation and direct oversight has moved as a result.
A certificate from one authority is normally validated by others under bilateral agreements rather than re-certified from scratch. The degree of independent review varies, and it has increased — which lengthens the path to worldwide approval for a new design.
1 of these is marked as a chokepoint: a handful of qualified suppliers, a multi-year lead time, or a single geography.
The rule set, plus conditions written for anything novel the rules do not yet cover.
Structural test specimens, iron birds and dedicated flight test aircraft are a large fixed cost of any programme.
Both the design and the factory hold approvals; losing or amending either affects what may be delivered.
A type certificate cannot be issued until the flight control architecture has its own accepted case: dissimilar channels, degraded control laws and a demonstrated failure probability.
Fly-by-wireCompliance is shown system by system, so the aircraft's approval waits on every avionics and actuation supplier's own qualification evidence being complete.
Avionics and systemsOther pages in this map that name Type certification as something they cannot do without.
What each company supplies at this step, and — where a public figure exists — its share of this specific market — with what that share measures, the period it covers and who published it. Some rows also show the company’s own reported revenue for the segment covering this step, which is a different thing: it says how much this business matters to that company, not how much of the market it holds. Not a ranking and not a recommendation.
Holds type certificates and design organisation approval for its commercial aircraft.
Holds the equivalent approvals for its commercial aircraft families.
Certifies and builds regional and business aircraft families.
Certifies and produces business and general aviation aircraft.
Holds a Chinese type certificate and no Western one, which is the clearest demonstration of what certification is worth commercially.
Certifies business jets, where the same process runs on smaller programmes and shorter cycles.
Runs civil certification alongside military programmes, on airframes certified in both Europe and the US.
Certifies large-cabin business jets through its aviation arm, on a cadence closer to a product line than a programme.
Whether certification timelines for novel configurations shorten or continue lengthening.
How authorities treat learned or adaptive software in airborne systems.
Whether validation between authorities becomes faster or stays a serial process.
Each page explains one technology in plain language, states what it depends on, and names companies by what they supply at that step. Company roles are described qualitatively and deliberately carry no market shares, revenue figures or rankings — those change faster than an explainer can, and a stale number is worse than none. Ticker links point at company pages on this site and are provided for reference only.
Nothing here is investment advice, a recommendation, or a forecast. A company named on a page about a technology is not thereby a good investment, and the chokepoints described are structural facts about supply chains rather than predictions about prices. Technology moves; where a page describes something as unresolved or in development, that was true when it was written.