SESSION-4 AT SOAR BY AVEMBSYS

                                       The 4^th session on 7^th Jan 2011 was started with an introduction of the 8051 Micro controller.After that we discussed on assignment given to us.After that we started with detailed discussion about aircrafts and their various classifications.The early aircrafts were the Ornithopter(Leornado Da Vinci,1500),Lighter than Air-Craft(Fransesco de Lana,1670),Airplane(George Cayley's Model,1804),Glider(Otto,1896) and the first successful airplane by the famous Wright Brothers.

                                       After that discussions were done about the features over which the  aircrafts are classified  which includes the following
1.Space Of Operation which calssifies the aircraft as Aircraft ,Spacecraft and Space shuttle.
2.Propulsion Mechanism which categorizes the air craft as Proppeled and Unproppeled crafts.
3.Crew which divides the aircraft as Manned and Unmanned flights.
4.Wings  which separate the aircrafts as Fixed wings type and Rotary wings type.
5.Number of Wings which sorts the aircraft as Monoplane , Biplane and Triplane.
6.Landing Mode which includes Land , Sea and Amphibians.
7.Engines which makes the division as Proppeler , Turbofan and Turboprop.
8.Number of Engines which categorizes it as Single , Twin and Multiple.
9.Function which classifies aircraft as Fighter , Bomber and Transport.

Various special type of aircrafts were also shown to us such as Reconnaissance,Airborne warning and control system (AWACS), Microplane, Aerial Refuelling, Vertical Takeoff, Stealth and Aircraft Carriers.For a break in all these facts, we discussed about lighter topics like the UFO's,science fiction becoming reality and the Bermuda Triangle.The high turbulence in this area and the unusual magnetic anomalies have caused 50 ships and 20 airplanes disappear.

                                      Then we were shown the video of the air crash involving Aviance Flight 52 scheduled from Bogota to New York via Medellin in which eight of the nine crew members and 65 of the 149 passengers on board were killed.The crash happened due to lack of fuel at the end of a misunderstanding of the situation by the ATC at New York and the ATCs that were transferring the flight’s control from its region to another. This case study made us understand the importance of specific words that must be used in Aviation and the unusual lack of efficiency in the manual air traffic scheduling systems in case of emergencies that are unpredictably led to a disaster.

We then discussed on the working of ILS system. In order to land the Aircraft, it must be perfectly aligned to the center of runway.How can this be done? Here comes the ILS antenna! A neat technology which sends two signals of different frequencies where the join of these signals correspond to the center of the run way. This is used for both the lateral and vertical guidance. The lateral guidance aligns the aircraft with the center of runway and vertical guidance aligns the aircraft with the glide slope.