TX Transformer

Development of the ARES VTOL TX Transformer

Piasecki Aircraft Corp. and Lockheed Martin (end user DARPA)

Services Performed:
PEI provided design development and structural analysis of the center wing, pylon, tail and spindles of the TX Transformer.

Structural Analysis:

  • Created detailed Finite Element (FE) Model of structure and modified FE Model as necessary when design changed
  • Provided section cuts and free-body diagrams of flight events as required
  • Detailed analysis of the:
    • Center Spar
    • Duct Tilt Assembly
    • Fairing Fittings
    • Inner and Outer Ribs
    • Landing Gear
    • Leading Edge
    • Spindle
    • Pylon/Pylon fittings
  • Buckling analysis to identify structural deficiencies
  • Provided final FE Model and analysis files to Piasecki

Engineering Design:

  • Design studies and weight reduction effort
  • Modified the Center Wing Tail structure to limit peak deflections to requirement
  • Modified the Spindle to meet deflection requirements
  • Supported various design changes specified by Piasecki
  • Weekly teleconferences and on-site support as necessary at Piasecki in Essington, PA

For more information, please see the following links:

Lockheed Martin’s description on the project and video:

DARPA: ARES Aims to Provide More Front-line Units with Mission-tailored VTOL Capabilities