Results from three months of simulated flight routes between London and New York show that permitting optimised en-route airspeed variations leads to fuel savings of 0.5% on an average day (and up to 4% on certain days), compared with fixed airspeed flights. We conclude that significant fuel ...
lbs Airspeed, ft/sec Takeoff safety speed, ft/sec Normalized flow components a t the main rotor Horizontal component of VTosS or VBLss, ft/sec Thrust vector inclination, deg " Takeoff slope/Approach angle, deg Power efficiency factor inflow ratio Air density, slug/ft3 Rotor solidity ratio Tur...
to compare it to the same array obtained in the vicinity of the minimum, the results of comparing the determined wholesale mal airspeed corresponding to the border of a statistically significant difference compared arrays, and converted to an aircraft in flight mode with maintaining optimal speed. ...
Since either Mach number or airspeed is kept at a desired value at a given altitude during normal operations, the effect of the increased 𝑁1N1 will lead to a reduced rate of descent. An earlier top of descent (TOD) will therefore be required, since the descent will be performed over ...
This means that any point along the descent phase experiencing a converted fuel flow at sea level below 0.17 kg/s is increased to that value. A higher fuel-flow rate is thus obtained by increasing 𝑁1N1; i.e., thrust is increased. Since either Mach number or airspeed is kept at a ...
The initial conditions are calculated for any external condition (airspeed, irradiance, temperature), considering the case in which the temperature profile in the walls follows a hysteretic cycle. This cycle oscillates around the set-point air temperature following the refrigeration ON/OFF cycle. ...
This means that any point along the descent phase experiencing a converted fuel flow at sea level below 0.17 kg/s is increased to that value. A higher fuel-flow rate is thus obtained by increasing 𝑁1N1; i.e., thrust is increased. Since either Mach number or airspeed is kept at a ...