2020
Aerospace & Defense
Since the aerial delivery system is already in action nowadays. But to make our aerial vehicle lighter and compact. We introduce a counter-rotating, coaxial vehicle. Making flying vehicles smaller, simpler, and lower cost is the goal of this work. There’s a developing interest in the design and control of counter-rotating, coaxial prop-rotor aerial vehicles.
It is a color changing drone which uses the color changing properties like frog and cuttlefish which can change their color according to the environment with the help of their several pigmented skin layer which absorbs the light and reflect the only color which they want like that this drone have several layers which can absorb the light and
As the core of a modular, optionally-manned, single-stage-to-orbit, reusable, trans-atmospheric spaceplane; this combined-cycle engine which operates on JP-7 jet fuel, and either air or LOX; functions as an Expansion-Cycle Turbojet for takeoffs and landings (for noise reasons). Then transitions through Pulse-Detonation Turbojet, Pulse-Detonation Ramjet, Supersonic-Combustion Ramjet,
Below is the equation for the resistance of a fluid flow system:
∆P/Ǭ=(q-W)/VǬ-ρ δv/Ā-(μA_⟘ dv_⟘)/ĀǬ-(ρA_h gδh)/ĀǬ
Where Ǭ is the total volumetric flow in the system; ∆P is the pressure difference across the system; V is the volume of the system; Ā is the area perpendicular to the flow;
The screen of this device is normally in a passive flight following mode showing aircraft position, flight plan route, weather and terrain/obstacles. The system calculates a predicted flight path. If the predicted flight path detects a potential CFIT situation,
The risk of illegal use of drones has greatly increased in terms of privacy violation, spying, and terrorism. The current state-of-the-art drone detection systems (DDSs) involve diverse sensing methods such as acoustic sensors, video surveillance, and RF methods. However, none of existing DDSs provide remote payload monitoring or verification.
INTRODUCTION
The maturity of the technologies for the guidance and control of UASs allows proposing innovative operational options such as the ability to spray a significant amount of an agent of any sort at a pre-established point in the atmosphere.
This is the case of NitroFirex,
As per title drones can be used as a power bank to recharge the drying batteries of sensors.
A drying battery will send a signal to recharge it and the drone will be ready to fly to recharge the battery of sensor by detecting the location of sensor.
During training for or in emergency response situations, it's useful to know team members' positions in real-time, but can be difficult to do so. Losing someone’s position could have undesired impacts, such as a failure to contain/apprehend or friendly fire situations. Radio frequency transmitters worn by team members can serve as beacons, 
There is rapid development in drone technology nowadays, they are being used in almost every other field. In this, we will be talking about the usage of drones in fish farms.
A fish farming drone can attentively be in charge of fish rearing tanks,
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