Session 3 At Soar By Avembsys

            After a long wait filled with eagerness the session began. It started with a quick revision of 'C',by one of our friends explaining the basic concepts which proved quite helpful specially for us EC and EEE students to recall all that we had learnt on it.

           Then the actual session began with discussion on Electronic Warfare which refers to any action involving the use of electromagnetic spectrum or directed energy to control thr spectrum attack on enemy or impide enemy assaults via  the spectrum. We then moved onto the concept of Electro Magnetic Pulse(EMP), where a pulse of high density electromagnetic waves are sent to the enemy devices to destroy them. The day then progressed towards more interesting concepts like the Aerodynamic Basics to mention first, under which we discussed the fundamental concepts of physics like mass and weight, momentum, moment, couple, density, temperature, viscosity and pressure to name a few. Then we moved onto few terminologies like the static pressure which is a measure of purely random motion of molecules in the gas and total/stagnation pressure which means if the fluid element is slowed to zero velocity at a point where the local pressure is static, then the pressure at that point is called as total pressure. To note a point here is that flow reduces static pressure. We then moved on to the concept of pitot static probe and how it is used to obtain the airspeed that is in turn the aircraft's speed using static and total pressure. Its basically a critical instrument used in flight which measures the pressure difference and thereby measuring the speed. We also discussed on the altitude of the flight from various layers, the standard sea level conditions, the basic gas laws,aerodyanamic centre,centre of pressure and the mach number. The slides of the wing structure helped us understand how its shape affects the movement of flight on air. The slide on the aircraft view showed the various parts of an aircraft and helped us to know how each part had their own magnificant role in the control of the flight. We also learnt about forces acting on an aircraft, weight of an aircraft and  various parameters of the wings. The concept of cloud burst which was explained in detail helped us know how it can hamper the flight take-offs and landings. The concept of VTOL(Vertical Take-Off and Landing) was very intriguing which made us think how powerful the engine could be when its producing a thrust same as that of the weight.

        Post lunch break  the crash video shown of an Air France flight  that happened in 1988 was a quite a touchy one which makes us feel the need to be extra careful while dealing with many lives. Further, discussions were based on projects and also the mini project that was assigned to us which is dealing with wireless transmissions between two 8051 modules, which also incorporates a sensor. I am glad that all of us are considering this challenge seriously to make it a success.