Technical Notes

A Growing Compendium of Demos of FLIGHT-X Projects

1. Transonic Cruise Mach numbers: Speed is good but not at all costs.

We discuss benefits and costs of pushing the cruise Mach number toward high transonic speeds. Read the full report.

2. Economic Mach Number

Unlike road vehicles, whose resistance increases with the speed, modern airplanes have an optimal speed/ Mach range. This concept is explained below with the use of the specific air range (SAR)...  Read the full report.

3. Estimation of Emissions from Ground Operations

Ground operations refer to the airplane taxing from the gate and back to the gate, or a final parking place at the airfield. During this operation, the airplane rolls at relatively low speed, stops, restarts, turns, etc.  Read the full report.

4. Real-time Aicraft Noise Monitoring: Arrival/Departure

FLIGHT-X has a complete aircraft flight noise and acoustics simulation capability. It can simulate realistic airfields with built-in topography and can visualise the effects on the ground of multiple aircraft movements... Full Report.

5. Flight into Dust Clouds and Contaminated Environments

FLIGHT-X has the ability to simulate the effect of dust and volcanic ash ingestion when flying in harsh environments. The instantaneous, maximum and dosage values can be computed depending on the size of the dust... Full Report.

6. Benefits and Drawbacks of Fuel Tankering.

Fuel tankering is a term that defines the loading of more fuel than required to perform a mission, e.g. a required range with a specified payload over a specified route. Airplanes load only the fuel required for the mission, including the regulatory fuel reserves, but there are benefits in loading more fuel... Full Report.

7. Estimation of Direct Operating Costs.

This is a notoriously difficult thing to do, especially if the main items of costs are to be forecasts. It is easier working the DOC backwards, e.g. looking at past costs structure to glean some future costs... Read the Report.

8. Noise Footprint Analysis and Operations

We demonstrate one test case of noise footprint differences on final approach when using a steep-approach strategy. Read the Report.

9. Environmental Emissions over entire Flight

We discuss the features of environmental emissions of a commercial airplane from gate-to-gate, depending on flight range, passenger load and other variables. These emissions are aggregated by flight altitude or flight segment. Read the Report.

10. Arrival Flight Optimisation

We discuss optimal problems of minimum-emissions arrival flights of a commercial aircraft at a major international airport. We consider fuel burn, chemical emissions, noise and health effects. Read the Report.

11. Aviation Data Analysis

We provide examples of clever analysis of aviation data, including type certification and environmental envelope. Read the Report.

12. Using ADS-B/Mode-S Flight Data to Estimate Aviation Emissions

We describe a simulation approach to take advantage of the availability of flight data in order to estimate engine exhaust emissions. Read the full report.


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