Comfort and circulation
Seating, food service, bathrooms and rest areas connected by internal routes. Ergonomics, accessibility and use of the areas will be assessed in the layout and mockup.
BACL®7G
BACL®7G presents its proposal for disruptive innovation in circular aircraft: a vision for the evolution of aviation, focused on the user experience and developed in stages.
After more than a century of advances in aviation, BACL®7G explores a circular architecture beyond the traditional tubular fuselage. Author and Designer Eng. João Budni proposes new possibilities for comfort, accessibility and quality of life.
According to the inventor, more than ten years of in-depth studies, analyses, aerospace engineering calculations, tests and repeated simulations led to the current concept, which he considers technically feasible with advanced aeronautical engineering. Results will be presented with records, conditions and limitations, distinguishing this assessment from independent demonstrations and certification.
Concepts and design requirementsSeating, food service, bathrooms and rest areas connected by internal routes. Ergonomics, accessibility and use of the areas will be assessed in the layout and mockup.
Passenger-linked baggage and two-layer check-in: first in the terminal hall; second on the boarding apron and access stairway, with magnetic validation. Flows, assisted mobility and data handling will be assessed; strategic mechanisms remain protected.
An objective to reduce dependence on conventional runways. Operation will require demonstrated capability, authorized locations, infrastructure and airspace integration.
A target above Mach 2.02 and study of altitude beyond usual commercial cruise. The envelope must be demonstrated for each configuration and flight conditions.
A requirement for sea-level-equivalent pressure throughout the cabin, covering 360°. An emergency reserve for the complete flight plan, to be sized by mission and occupancy.
Intended reduction of adverse-weather exposure and protection during an emergency on water. Weather limits, stability, sealing and evacuation require assessment and testing.
Depending on size and configuration, up to four passenger access doors and elevators for passengers requiring assisted mobility. Access, restraint systems and evacuation will be integrated into the layout and technical assessments.
Depending on size and configuration: onboard piano, entertainment area, virtual windows, restaurant and Coffee Bar, plus bathrooms and rest spaces. Planned features will be assessed by version and operating conditions.
| Application | Planned diameter | Decks |
|---|---|---|
| Civil | Ø25 m | 1 |
| Military | Ø20.5 m | 1 |
| Aerospace | Ø52 m | 3 |
Planned configurations. Each version will have its own studies, integration, construction and assessment. The golden hangar image depicts the Ø25 m civil concept. Construction details and strategic mechanisms remain confidential Under Seal.
BACL7G PERSPECTIVES
Explore the conceptual exterior and interiors. Select an image to take a closer look.






Illustrative images. Artistic perspectives; configuration and features are subject to studies and validation.
PF denotes a natural person; PJ, a legal entity. Applicable identifiers depend on tax residence or country of incorporation, not language. These are functional references, without automatic legal equivalence. Documents will be confirmed during formal validation; preliminary registration does not collect tax documents.
| Country | PF • natural person | PJ • legal entity | Official source |
|---|---|---|---|
| Brazil BR | PF tax identifier | PJ tax identifier | Official source |
| United States US | SSN / ITIN | EIN | Official source |
| Spain ES | NIF (DNI / NIE) | NIF | Official source |
| Japan JP | Individual Number / My Number (個人番号) | Corporate Number (法人番号) | Official source |
| South Korea KR | 주민등록번호 / 외국인등록번호 | 사업자등록번호 | Official source |
| Mainland China CN | 居民身份证号码 / TIN | 统一社会信用代码 | Official source |
| Russia RU | ИНН / INN (12) | ИНН / INN (10) | Official source |
| Germany DE | Steuer-IdNr. | W-IdNr. / Steuernummer | Official source |
| France FR | Numéro fiscal / SPI | SIREN | Official source |
| Italy IT | Codice fiscale | Codice fiscale | Official source |
| United Arab Emirates AE | Emirates ID / Passport; TRN* | Business registration / Corporate Tax TRN* | Official source |
| Poland PL | PESEL / NIP | NIP | Official source |
| United Kingdom GB | UTR / NINO | UTR | Official source |
| Canada CA | SIN / NAS | BN / NE | Official source |
| Portugal PT | NIF | NIPC / NIF | Official source |
| Mexico MX | RFC (13) | RFC (12) | Official source |
Informational references checked on 11 October 2026. Japan: My Number has restricted legal uses; do not submit it here. Germany: W-IdNr. when assigned; Steuernummer remains. UAE: no general personal TIN; Emirates ID identifies the person and TRN applies only with relevant tax registration. France: SIRET identifies establishments. Italy: VAT registration does not automatically replace codice fiscale. Poland: PESEL or NIP according to status.