A group design project presented to the Department of Aeronautics
in partial fulfilment of the requirements for the degree of
Master of Engineering (MEng) in Aeronautical Engineering
at
Imperial College London
Helicopter Emergency Medical Services (HEMS) aircraft are currently adaptations of existing helicopter models, which, whilst adequate, are limited in their ability to serve the specific needs of the HEMS mission.
HALO explores a 3.5-tonne-class conceptual design with coaxial rotors, targeting ~140 kt cruise and >600 km range, powered by twin Honeywell HTS9000 engines.
The concept also looks at active flow control for cruise efficiency, an H-tail for rear loading and fast turnarounds, and onboard systems capable of supporting high auxiliary loads for medical equipment.
- Deliverables
- Catalogue
Everything you’d typically want to open first:
- Executive Summary: HER25_Executive_Summary.pdf
- Final Presentation: final.pptx
- Poster: PosterA1.pdf
Shared documents, templates, and reference libraries.
- Briefing and Admin Documents: GDP guidance, kickoff slides, teamwork workshop material, etc.
- Brand Assets & Templates: Logo, fonts, report template zip, PowerPoint templates
- Past Reports Library: “best” GDP reports, rotorcraft GDP reports, VFS Student Design Competition
- Final Submissions: Final report, presentation, poster, etc.
Project coordination, market analysis, cost calculation, and cross-team integration.
- Market Analysis: Market analysis script
- Cost: Cost estimation
- Duties: Duties allocation
Aerodynamic design tasks.
- Stability and Force Calculation: Horizontal tailplane, Vertical tailplane
Structural sizing, mass estimation, and CAD-related calculations.
- Consolidated Working Script: Integrated code
- Weight Calculation: Structure weight estimation, Initial MTOW estimation
System architecture, weights, CG, propulsion integration, and equipment placement.
- Weights and CG Aggregation: Conceptual weights
- Propulsion: Propulsion calculation
- Placement Tools: Algorithm, Input
Mathematical model, trim, stability, control, and performance workflows.
- Mathematical Modelling: Coaxial rotor BEMT scripts, linearisation, Simulink models, and test notebooks
- Trim: Trim solving and plotting utilities
- Static Stability: Static Stability calculation
- Dynamic Stability: Linearisation tools and stability analysis scripts
- Control Systems: PID, H-infinity
- Performance Analysis: Performance and power calculation scripts
