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Helicopter Survivable Height / Speed envelope

Helicopter Survivable Height / Speed envelope Grégory Caudy, SFACT, DGAC France Research and Experience Feedback Office Helicopter H/S envelope Outlines - The SFACT research activities - Origin of this research program - Description of the study SFACT Research activities

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Helicopter Survivable Height / Speed envelope

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  1. Helicopter Survivable Height / Speed envelope Grégory Caudy, SFACT, DGAC France Research and Experience Feedback Office

  2. Helicopter H/S envelope Outlines - The SFACT research activities - Origin of this research program - Description of the study

  3. SFACT Research activities - Evolution of the regulation - Various domains Occupant survivability, Human factors, External hazards, Environment and Innovation - International cooperation JAA RC, CSRTG, …

  4. Origin of the project - The Height / Speed envelope SAFE LANDING PROHIBITED AREA height O speed

  5. Origin of the project(II) The regulation - Compatibility between T/O and Landing trajectories // Regulation SAFE LANDING PROHIBITED AREA height O speed

  6. Origin of the project(IIbis) The operational context - Compatibility between T/O and Landing trajectories // Regulation SAFE LANDING PROHIBITED AREA height O speed

  7. Origin of the project (III) - The Height / Speed envelope - Compatibility between T/O and Landing trajectories // Regulation - Coherence between JAR 27/29 and JAR OPS3 Safe emergency landing

  8. Description of the study - Theoretical part : 1 year Analysis of accident and flight test data > Determination of the consistent parameters Horizontal/Vertical speed, Rotor lift Pitch, Roll, Yaw attitude > Determination of the survivable envelope Development of a structure model JAR 27/29 helicopter Survivable vertical speeds

  9. Description of the study (II) - Experimental part : 2 years Validation of the model Simulation of the h/s envelope for > landing skids / wheels > influence of the configuration

  10. Final objective Current envelope No injury only material damage No serious injury Material damage Forbiden area : Serious injuries Loss of the a/c h Survivable Height / Speed Envelope ( low part especially) 0 s

  11. Helicopter Survivable Height / Speed envelope END Thank you for your attention

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