Model 8700 Aircraft Roll Dynamometer

Application

Brakes, Wheel, Hub, Tire

Interest

Laboratory Testing

Test Type

Performance, Durability

Model 8700 Aircraft Roll Dynamometer

Overview

The Link Model 8700 Aircraft Roll Dynamometer reproduces the radial and side forces acting on aircraft wheels to evaluate their integrity. This dynamometer applies a controlled radial load to an aircraft strut assembly (tire, wheel, hub and brake) against a rotating 3 m diameter hardened road wheel. Radial load is controlled by a servo valve, hydraulic cylinder and hydraulic power unit. Yaw and camber angles can be adjusted to induce side loads. The speed of the road wheel surface is controlled by a variable speed motor. Tire pressure is controlled through an automatic inflation and deflation system.

Applications

  • Aircraft wheel testing
  • Roll-on-Rim testing

Specifications

Radial Load 778 kN maximum
Side Load 267 kN maximum
Motor 485 kW
Speed 40 kph maximum
Road Wheel Diameter 3 m
Yaw Angle ± 25°
Camber Control ± 20 ° (optional)
Carriage Additional 2nd test carriage (optional)

 

Key Benefits

  • Yaw and camber angles can be adjusted to induce side load
  • Cast and hardened road wheel for roll-on-rim testing
  • Tire pressure control through an automatic inflation and deflation system

Test Procedures

  • FAA AC23 - 17B
  • AC25 735
  • TSO C26C

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