Abstract This paper is discussed the results of study on aerodynamic layout cryogenic regional turboprop with a low level environmental impact. The use fuel (liquid hydrogen, liquefied natural gas) in aircraft will radically reduce harmful emissions into atmosphere, as well consumption. But introduction transport category requires solving problems its storage board. A modification twin-engine f...

This paper provides a novel contribution for specifying the role of demand for technological competition. The focus is on the analysis of the mechanisms of technological learning and spillovers occurring in different structures of networks of vertically-related industries. The paper offers a detailed and original empirical analysis of technological competition among suppliers and structure of t...

The motivation for venturing in alternative jet fuels has partly been due to the elevated level and volatility of price Jet A environmental impacts on global climate change air quality. model annular combustor PT6A-27 engine was created using SOLIDWORKS exported ANSYS DESIGN MODELER. Creation computational mesh geometry MESHING done preparation setting up CFD simulation FLUENT. included, materi...

This paper deals with the estimation of propulsive effects for a three-lifting surface turboprop aircraft concept, rear engine installation at horizontal tail tips, conceived to carry up 130 passengers. work is focused on how system affects tailplane aerodynamics and, consequently, aircraft’s static stability characteristics using wind tunnel tests. Both direct and indirect have been estimated....

A turboprop engine is a hybrid that delivers thrust or jet and also drives the propeller. This basically similar to turbojet except turbine works through main shaft which connected reduction gear rotate propeller in front of engine. research was conducted determine development performance thermodynamic analysis so as know value each parameter on has been developing for 20 50 years with differen...

Modern aircraft turboprop engines are generally managed by pilots using the well-established two-levers approach which allows pilot to control independently engine thrust (power lever) and propeller rotational speed (condition lever). On other hand, twolevers governing system presents several disadvantages in terms of training, fuel consumption maintenance. The one-lever tries solve such drawba...

The OpenSky ADS-B/Mode-S databases have been fully integrated into a computational model that is used to estimate aircraft and rotorcraft engine emissions. This paper demonstrates the basis for method generalisation wide class of types. First, we use mathematical operations (filters machine learning) clean up data generate first-order derivatives. Then, “fly” these trajectories using ancillary ...

Introduction: Traditionally, DTI data is acquired with EPI because of its short imaging time. However, EPI-based DTI suffers from eddy-current and magnetic field inhomogeneity-related artifacts. Turboprop is characterized by low sensitivity to eddy-current and B0 effects, and is gaining popularity in DTI studies of the brain. In EPI-based DTI, it has been shown that, measuring diffusion weighte...