This paper deals with the problem of development of the mathematical model of a micro coaxial helicopter using hybrid method of analytical and experimental approach. An analytical mathematical model of micro coaxial helicopter has been derived with the consideration of dynamics of rotating parts to the rigid body dynamics. Pre-flight simulation was carried out based on the derived mathematical ...

This paper focuses on a critical component of the situational awareness (SA), the control of autonomous vertical flight for an unmanned aerial vehicle (UAV). Autonomous vertical flight is a challenging but important task for tactical UAVs to achieve high level of autonomy under adverse conditions. With the SA strategy, we proposed a two stage flight control procedure using two autonomous contro...

Aviation operations in the United States are expected to increase multifold by 2025. The consequences of such an increase in air traffic could become overwhelming at major airports. Extreme Short Take Off and Landing (ESTOL) aircraft offer the ability to alleviate the foreseen congestion at major airports by utilizing small runways that are inaccessible to conventional airplanes. In this paper,...

The flapping wing flight has superior maneuverability and aerodynamic advantages in a low Reynolds number regime. Nature’s flyers generate aerodynamic forces and moments from the various wing motions such as flapping and pitching to fly and sustain its flight stability. Bioinspired design of flapping air vehicle is one of the effective ways to exploit such a complex system. However the flapping...

The MIT Space Systems Laboratory is developing the SPHERES formation flight testbed to provide the Air Force and NASA with a long term, replenishable, and upgradable testbed for the validation of high risk metrology, control, and autonomy technologies. These technologies are critical to the operation of distributed satellite and docking missions such as TechSat21, Starlight, Terrestrial Planet ...

This paper discusses a new flight test facility at MIT known as the Real-time indoor Autonomous Vehicle test ENvironment (RAVEN) which enables the exploration of aggressive aerobatic flight with relatively low risk. A key feature of this work is that the control algorithms are often the limiting factor because the flight dynamics are highly nonlinear and not well known, and they can change with...

The field of air traffic management (ATM) has a strong interdisciplinary nature, combining of technological, management, economic and regulatory aspects. The fully understanding of the structure and dynamics underlying the system continues to be significant challenges in the field. Here we present a novel framework for the study of the structure and dynamics of the air transport system building...

For autonomous helicopter flight, it is common to separate the flight control problem into an inner loop that controls attitude and an outer loop that controls the translational trajectory of the helicopter. In previous work, dynamic inversion and neural-network-based adaptation was used to increase performance of the attitude control system and the method of pseudocontrol hedging (PCH) was use...

In this paper, a new approach has been proposed to identify and model the dynamics of a highly maneuverable aircraft through fuzzy logic algorithm. In general, aircraft flight dynamics is considered as a nonlinear and coupled system whose modeling through fuzzy logic algorithm can be done using a few experimental flight tests data. In this study, for identification and modeling of the aircraft ...