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AVIATION / Airframe & controls / REVIEWED 2026-09-11

A03Tail & stabilizers

Provide stability and control at the tail.

Manufacturers & products

The tail combines fixed or trimmable stabilizers with separate elevators and rudder. Structural capability is concentrated in program-specific work packages.

Program applicability is stated for each listing. 737NG, 737 MAX, and other aircraft examples are distinct configurations; listed products are not automatically interchangeable or approved for installation.

manufacturer

GKN Aerospace

Empennage structures

The aerostructures portfolio names empennage work on Gulfstream G650 and HondaJet. [1]

Program / application

Other aircraft — business jets; no 737 applicability established [1]

Custom program inquiry

Contact the manufacturer or aircraft OEM for the applicable approved program and configuration. This is an inquiry route, not an assertion of stock, price or installation eligibility.

View product & inquiry route
manufacturer

Aernnova

Horizontal and vertical stabilizers

Designs and manufactures horizontal and vertical stabilizer assemblies. [2]

Program / application

General empennage capability; 737 applicability unverified [2]

Custom program inquiry

Contact the manufacturer or aircraft OEM for the applicable approved program and configuration. This is an inquiry route, not an assertion of stock, price or installation eligibility.

View product & inquiry route
manufacturer

Leonardo

787 horizontal stabilizer; A220 tails

The cited disclosure identifies 787 horizontal-stabilizer and A220 horizontal/vertical-tail work. [3]

Program / application

Other aircraft — 787/A220; no 737 applicability established [3]

Custom program inquiry

Contact the manufacturer or aircraft OEM for the applicable approved program and configuration. This is an inquiry route, not an assertion of stock, price or installation eligibility.

View product & inquiry route

What remains unverified

  • 737NG tail work-package allocation and numerical structural limits were not established from these public sources.

Where it comes from

A company address is shown separately from a published factory location. Request the manufacturing site and lot traceability for the exact part when sourcing.

What to compare

  • Stabilizer versus movable boundary

    Separate tail structure, trim mechanism, rudder and elevator responsibilities.

  • Aerodynamic geometry

    Area, sweep and incidence must match the aircraft configuration.

  • Attachment loads

    Compare vertical, lateral and torsional load cases at fuselage hard points.

  • Stiffness and flutter

    Tail dynamics depend on hinge balance and the entire aircraft.

  • Trim envelope

    Confirm stabilizer travel, clearances and stops where trim is provided.

  • Mass balance · kg

    Compare balance weights and delivered mass distribution.

  • Materials and lightning

    Review composite protection, metal joints and corrosion control.

  • Inspection and repair

    Check access to internal structure, hinges and approved repair schemes.

Selection & integration notes
  • Three directly evidenced manufacturers are listed rather than padding the tail category with generic fabrication shops.

Published product examples

2 REFERENCES

Specifications belong to the named product and configuration.

Gulfstream G650 empennage referenceGKN Aerospace

Public source establishes the product/work package, but does not publish comparable component mass, load limits or envelope. Request controlled drawings and configuration data through the aircraft program.

Example sources [1]
787 horizontal stabilizerLeonardo

Public source establishes the product/work package, but does not publish comparable component mass, load limits or envelope. Request controlled drawings and configuration data through the aircraft program.

Example sources [3]

Sources & references

REVIEWED 2026-09-11

Manufacturer pages and technical documents support the linked claims. A review date is not a publication date or stock check.

  1. Aerostructures GKN Aerospace · Publication date not stated

    Fuselage, wing, control-surface and empennage capabilities; named business-jet tail references.

    Accessed 2026-09-10
  2. What we do Aernnova · Publication date not stated

    Fuselage, wing, stabilizer and secondary-structure engineering and production.

    Accessed 2026-09-10
  3. 2023 EMTN Base Prospectus — Aerostructures Leonardo · Publication date not stated

    787 fuselage and stabilizer, 767 wing movables and empennage, ATR structures; historical program disclosure.

    Accessed 2026-09-10