Responding to incidents where access by conventional land-based ambulance assets is limited an important facet of helicopter emergency medical services operations in rural areas. Often such cases extra resources must be utilised enable patients and facilitate egress transport platforms. This case illustrates the importance coordination integration with additional that can remote locations.

Helicopter moving horizontal tail (i.e., MHT) strategy is applied in order to save helicopter flight control system (i.e., FCS) energy. For this intention complex, physics-based, control-oriented nonlinear helicopter models are used. Equations of MHT are integrated into these models and they are together linearized around straight level flight condition. A specific variance constrained control ...

In this paper, a neuro-fuzzy system identification using measured input and output data are carried out. A model-free learning from “examples” methodology is developed to train a neuro-fuzzy model of a smallsize helicopter. The helicopter model is obtained and tuned using training data gathered while a teacher operates the helicopter. Behavior-based model architecture is used, with each behavio...

Over last 10-years period there has been just one helicopter accident (with no fatalities) in the Norwegian sector of helicopter offshore operations. In this case, safety monitoring cannot be based on the absence of accidents. The main objective of this paper is to suggest a combination of leading and lagging indicators to monitor safety performance for helicopter offshore operations. An approa...

DASC Time-delayed anti-swing controller FHL Force transferred from the load to the helicopter kd Gain of the delayed feedback controller L Load cable length mL Load mass MHL Moment transferred from the load to the helicopter N Number of particles in the PSO PSO Particle swarm optimization algorithm RH Hook position vector RL Load position vector p,q,r Helicopter angular velocities Vmax Maximum ...

BACKGROUND Despite numerous studies on prehospital airway management, results are difficult to compare due to inconsistent or heterogeneous data. The objective of this study was to assess advanced airway management from international physician-staffed helicopter emergency medical services. METHODS We collected airway data from 21 helicopter emergency medical services in Australia, England, Fi...

SUMMARY This work first describes the development of a real-time flight simulator for an R-50 experimental model helicopter. A mathematical model of the helicopter is developed to represent the dynamics of the real system. This simulation model is used to investigate and analyze the helicopter dynamics in a hovering flight condition. The importance of a control rotor used for stability augmenta...

In this research, an automatic control system is designed for landing of a small helicopter on a 4 DOF moving platform. The platform has three translational and one directional degree of freedom. The controller design approach is based on development of helicopter nonlinear dynamic model into the SDC (State Dependent Coefficient) form and real time solving of state dependent Riccati equation (S...

An approximate numerical mthod is presented for analysis and determination of modal characteristics in straight, pretwisted non-unifom helicopter blades. The analysis considers the coupled flapwise bending (out of plane), chordwise bending (in plane), and torsion vibration of both rotating and non-rotating blades. The proposed method is based on the integral expansion of Green functions (struct...