Project 17: Lift Simulation for Helicopters Improvement Program (LSHIP)

Summary of Services Performed: Integration and testing of FLIGHTLAB UH-60 flight dynamics model with shipboard landing on a U.S. Army Operational Flight Trainer

Under a prime contract from the Army’s PEOSTRI, ART provided a UH-60 flight dynamics model that included our latest shipboard landing modeling capability and assisted in integrating and testing it with an existing UH-60 Operational Flight Training simulator at Ft. Campbell. The model included the effect of the ship airwake on the helicopter. The ship airwake was generated using Computational Fluid Dynamics with a detailed model of the ship’s geometry. ART also provided a nonlinear six degree of freedom motion of the ship and used it to drive a visual representation of the ship in the simulator. Other helicopter ship interactions included the dynamic ground effect of the ship moving under the helicopter, the partial ground effects resulting from a rotor partially over the deck, and the interaction between the helicopter landing gear and the deck. Several pilots that were experienced with shipboard helicopter operations were brought in to test the flight dynamics model and simulator. Their conclusion was that the simulator was very representative of the helicopter shipboard landing and that the addition of an accurate airwake from the ship’s superstructure was an essential part of the realistic training environment.

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