Thrust Reverser Latches

Name: Thrust Reverser Latches | Engine Thrust Latching Device - Frigate
Price: 249.00 USD
Availability: InStock

Thrust reverser latches are designed to withstand complex loads arising from reverser deployment and aerodynamic braking. They must resist axial tensile forces from actuator pull as well as torsional stresses caused by cowl deflection during operation.

Material Specification

Titanium Alloy (Grade 5, Ti-6Al-4V) or High-Strength Aluminum (7075-T6)

Actuation Method Compatibility

Hydraulic, Pneumatic, Electric Actuator Interface (SAE AS4710 Compliance)

Latching Mechanism Design

Fail-Safe Hook & Pin Mechanism with Redundant Locking

Locking/Unlock Force Requirements

Min. Locking Force – 5000 N

Operating Environment Compatibility

Temperature Range – -65°F to 350°F (-54°C to 177°C)

Product Description

To ensure secure engagement, the latch geometry is precisely engineered with controlled backlash and optimized contact pressure distribution. This prevents stress risers, reduces wear, and eliminates the risk of partial or unstable engagement under dynamic load conditions.

Fatigue Life

≥ 100,000 Cycles (Under Max Operational Load)

Surface Treatment

Anodized (Aluminum) or Passivated (Stainless Steel) + Dry Film Lubricant Coating

Dimensional Tolerances

±0.005 in (Critical Bore/Shank)

Non-Destructive Testing

Ultrasonic Testing (UT) for Internal Defects

Safety & Reliability Standards

FAA 14 CFR Part 25

Technical Advantages

Latch assemblies in nacelle systems are subjected to high-frequency actuation sequences during takeoff and landing operations. Fatigue resistance is achieved through the use of solution-treated, precipitation-hardened alloys with known high-cycle endurance properties. Components undergo shot peening and surface residual stress optimization to delay fatigue crack nucleation. Material selection is based on strain-life modeling that accounts for thermal expansion mismatches between adjacent structural interfaces and varying load amplitudes across the actuation cycle.

Jet propulsion systems produce continuous vibratory excitation and discrete shock events during spool-up, thrust reversal, and engine-out scenarios. The latch system incorporates anti-fretting bushings and dynamic isolation elements to attenuate high-frequency vibration modes. All critical contact interfaces are validated against MIL-STD-810 vibration and shock profiles using modal analysis and real-world excitation input. This ensures that mechanical lock integrity remains uncompromised in both steady-state and transient engine operation.

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Industry Applications

Nacelle Systems in Commercial Jet Engines

Used to mechanically secure translating cowl components during thrust reverser stowage under aerodynamic and actuator-induced loading conditions.

Widebody Aircraft Thrust Reverser Assemblies

Supports dual-door or cascade-type reverser configurations by maintaining lock integrity during asymmetric thrust events and high-vibration conditions.

Narrowbody Single-Aisle Aircraft Engines

Prevents uncommanded deployment of thrust reverser sleeves during ground idle through redundant mechanical locking and position verification systems.

Military Transport Aircraft Engine Pods

Ensures mechanical containment of reverser mechanisms during tactical landings and high-cycle actuation scenarios in variable atmospheric conditions.

Business Jet Rear-Mounted Engine Systems

Controls cowl deployment and retraction using compact latch configurations rated for frequent actuation and thermal shock exposure in short missions.

Helicopter Auxiliary Power Units (APUs)

Secures lightweight reverser covers in APUs with minimal envelope space, accounting for vibratory loads and thermal cycling near exhaust flow paths.

Thermal Stability Across Elevated and Sub-Zero Conditions

Latch mechanisms are exposed to significant temperature gradients, ranging from cryogenic tarmac conditions to high-temperature boundary layers near the engine core. Thermal expansion compensation is handled through differential CTE material pairings and compliant mechanism design. Solid lubricants with stable tribological characteristics at temperatures exceeding 200°C are applied via PVD processes to maintain low-friction articulation without requiring re-lubrication. System-level validation includes thermal cycling and retention force testing under simulated altitude and humidity conditions.

Modern aerospace systems demand real-time verification of latch status to ensure conformance with safety interlocks and engine control logic. Thrust reverser latches are designed with integrated state-sensing interfaces such as magnetically-actuated or dual-channel Hall-effect position sensors. Signal conditioning circuits are isolated and shielded to maintain data fidelity under high EMI exposure. Output signals are fully compatible with ARINC 429 or discrete logic lines, enabling seamless integration with EICAS or FADEC subsystems for system-level fault reporting and control authority.

Having Doubts? Our FAQ

Check all our Frequently Asked Question

How does Frigate ensure latch reliability under repeated high-cycle thrust reverser operations?

Frigate conducts endurance testing simulating over 50,000 full deployment cycles under controlled thermal and vibratory conditions. All thrust reverser latches components are manufactured using high-cycle fatigue-resistant alloys with surface treatments that delay crack initiation. Frigate applies shot peening and precision heat treatment to critical load-bearing parts. This ensures consistent locking force and dimensional integrity across the component’s operational lifespan.

What measures does Frigate take to prevent latch failure due to thermal expansion mismatch?

Frigate selects material pairs with matched coefficients of thermal expansion to avoid thermal distortion at interface points. Each thrust reverser latches is modeled using FEA-based thermal simulation to predict expansion behavior in both steady-state and transient engine conditions. Tolerance stacks are optimized to pflegen engagement even under high thermal gradients. The design includes relief features to absorb thermally induced dimensional shifts.

How are Frigate’s thrust reverser latches protected against corrosion in coastal and humid environments?

All Frigate Thrust Reverser Latches undergo surface treatments such as zinc-nickel plating or non-hexavalent chromate conversion per AMS standards. Components exposed to moisture are sealed with high-temperature-compatible elastomers rated for aviation-grade sealing. Salt spray testing is performed per ASTM B117 to validate corrosion resistance performance. These protections ensure long-term function without binding or loss of preload due to surface degradation.

How does Frigate validate latch engagement during engine vibration and shock conditions?

Fregatte uses multi-axis vibration rigs replicating engine nacelle excitation profiles to test for latch disengagement and mechanical resonance. Each latch is fitted with high-speed sensors to capture dynamic response and engagement stability during testing. Design enhancements include positive locking features and serrated interfaces to prevent micro-slip. Test data is benchmarked against DO-160G vibration and shock standards.

Can Frigate provide customized latch assemblies for engines with space-constrained nacelle configurations?

Frigate develops compact latch architectures using space-optimized kinematics without compromising locking strength or sensor integration. 3D CAD modeling and digital mock-ups are employed to match unique nacelle envelopes. Modular subassemblies enable rapid adaptation to different mounting geometries and actuator interfaces. This approach supports platform-specific integration while retaining core mechanical performance characteristics.

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