What We Do
Engineering Services
Service support that keeps you in the air. Aeronautica provides engineering services in a wide variety of specialties for both civil and military aircraft programs.
External and Internal Loads
Aeronautica's engineering staff is experienced in the development of aircraft loads for use in both static and fatigue analyses. Loads developed include both external as well as internal and even load allowables. Tasks are performed using a variety of analytical tools which include both commercial off-the-shelf as well as specific tools developed by Aeronautica.
Capabilities
- External aircraft aerodynamic and inertial loading
- Airframe internal loads
- Panel allowable internal loads accounting for buckling
- Weight and Balance
Commercial Tools
- FAR 23 Loads Program
- Nastran
- Femap
- StressCheck
Aeronautica Proprietary Tools
- Aspec Loadsgen – Flight by Flight Spectrum Development
- FuseLoads – Fuselage Bending Internal Loads
- WingBox – Wing Multi Cell Internal Loads between 2 Ribs
- WingSpan – Wing Internal Loads Along Span of Wing
- Frame – Fuselage Frame Internal Loads
Structural Design
Aeronautica's engineers have extensive experience in the design of both simple and complicated detail parts, assemblies, and installations for the aerospace market. Designs can be generated in either 2-dimension format drawings or 3-dimension electronic datasets that can be shared through universal data sets with vendors to tailor designs to meet material and schedule requirements. The design staff is experienced in all ranges of detail part design from simple sheet metal parts to complex contour major components such as wing attach fittings, engine mounts, and integrally machined components, ranging from primary airframe structure to secondary structure and aircraft interiors.
Capabilities
- 2-dimension format drawings
- 3-dimension electronic datasets
- Simple repairs to major modifications
- Custom interiors and new aircraft development projects
Commercial Tools
- DraftSight
- Catia V5
- AutoCAD
- Solid Works
Static Strength
The Aeronautica structures staff is highly experienced in performing stress analysis and structural substantiation on a wide variety of aircraft structures including both primary and secondary. The staff is well versed in numerous analytical methods and techniques, including industry classical methods such as those contained in Bruhn, Peery, NACA/NASA, and ESDU methodologies as well as numerical FEA methods such as Nastran. Substantiation capabilities range from simple equivalent strength approaches to highly sophisticated analyses including plastic bending, panel buckling and diagonal tension, complex joint load transfer, and non-linear solutions.
Capabilities
- Fuselage Frame, Skin, and Stringer Splice Repairs
- Fuselage Cargo Door Repairs
- Wing Spar and Panel Splice Repairs
- Wing Flight Control Repairs
- Empennage Primary Structure Repairs
- Landing Gear Repairs
- Fuselage Antenna & Radome STC Installations
- Custom Interior & Cargo Door STC Installations
- Wing Pod STC Installations
- Full Airframe OEM Evaluations for Special Mission Utilizations
- OEM Initial Design Analysis & Service Bulletin Development Support
Composites
The structural staff at Aeronautica has extensive experience in the analysis of composite materials utilized in the fabrication of both primary and secondary structures. Past experience includes both static ply level and laminate level analysis as well as evaluation for durability requirements and testing. Additionally, the staff has specific experience in the analysis and FAA certification of both small and large composite radomes. Analytical tools utilize both standard industry methods as well as FEA.
Capabilities
- Ply-by-Ply analysis using MSC/Nastran & Laminate Codes
- Bonded and bolted-bonded joint analysis using computational methods
- Failure Index and Margin of Safety calculations at ply and laminate level
- Development of Structural Test Plans per AC 20-107B
- Development of Damage Tolerance Evaluations per AC 20-107B
Commercial Tools
- MSC/Nastran
- Laminate Codes
Fatigue & Damage Tolerance
Aeronautica's staff includes some of the best specialist engineers in the field of fatigue and damage tolerance, thoroughly familiar and experienced in the areas of durability and damage tolerance, widespread fatigue damage, safe life evaluations, and aging aircraft fleet evaluations. With the increasing age of both commercial and military aircraft fleets worldwide and the latest FAA regulations such as Aging Safety and WFD rules, the necessity for a structural life assurance program is crucial. Personnel at Aeronautica have extensive experience in the analytical methods and implementation of structural integrity programs for a wide variety of aircraft.
Capabilities
- FAR 23.571, 23.572, 23.573 Fatigue and Damage Tolerance
- FAR 25.571 Damage Tolerance
- FAR Part 26 Aging Safety Rule
- FAR 27.571, 27.573, 29.571 Fatigue and Damage Tolerance
- FAR 121.1107 Repair Assessment
- MIL-STD-1530D Aircraft Structural Integrity
- Joint Services JSSG-2006 Aircraft Structures
- MIL-HDBK 516C Airworthiness Certification Criteria
Commercial Tools
- LexTech Afgrow
- SWRI Nasgro
- UDRI Cracks2k
- StressCheck
Applicable Regulations
- FAA AC 23-13A Fatigue, Failsafe and Damage Tolerance
- FAA AC 25.571-1D Damage Tolerance & Fatigue Eval of Structure
- FAA AC 25.1529-1A ICA of Structural Repairs on Transport Airplanes
- FAA AC 91-56A Supplemental Structural Inspection Program
- FAA AC 91-82 Fatigue Management Programs
- FAA AC 120-93 Damage Tolerance Inspections for Repairs
- FAA AC 120-104 Establishing Limit of Validity to Prevent WFD
Need engineering support for your project?
Contact us to discuss how Aeronautica can help with your structural analysis and certification needs.
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