Session 5 @ SOAR in Avembsys

               This session was all about AVIONICS  SYSTEM-AVIONICS ELECTRONICS , many advisory agencies,at the end of session we discussed about one of the avionic system-EGPWS : Enhanced Ground Proximity Warning System and  also discussed in details about TCAS.
          AVIONICS  SYSTEM-AVIONICS ELECTRONICS                                                                                               
                  

Avionics is a portmanteau which literally means aviation electronics

               AVIONICS :definition -The cockpit of an aircraft is a major location for avionic equipment, including control,monitoring, communication, navigation, weather, and anti-collision systems. It is subsystem which includes all the software and hardware parts installed in an aircraft.

Avionics have few principle which are listed below :
  1.Safety
  2.Mission of Aircraft
  3.Life cycle cost
  4.Certification

                           After this we saw , different avionics system present in all aircrafts:-

• Navigation:              

                       Absolute navigation system

         Dead reckoning navigation system      

         Maping navigation system

• Flight Control
• Engine Control
• Flight Management
• Subsystem Monitoring and Control
• Collision Avoidance
• Weather Detection

              We also discussed about ELT - Emergency Location  Transmitter and it has the emergency frequecies like 121.5,203,246.

Avionics system in Miltary Aircraft:

• Radar Infrared and other Target Sensors
• Weapon Management                                                                          

   

fully integrated core avionics system 

•  Electronic Cuntermeasures
•  Mission Planning
•  Formation Flight   

                     

Miltary Aircraft

    Advisory Agencies:
   

AGENCIES

         

        
    

    FAA      Federal Aviation Administration

    FCC      Federal Communications Commission

    RTCA     Requirements and Technical Concepts in Aviation 

    ARINC    Aeronautical Radio Incorporated

    SAE      Society of Automotive Engineers

    IEEE     Institute of Electrical and Electronics Engineers

    JAA      European Joint Aviation Authorities

    EUROCAE  European Organization of Civil Aviation Equipment 

     

The last topic of the session was EGPWS-   Enhanced Ground Proximity Warning System:
seven modes of EGPWS-

1. Excessive descent rate
2. Excessive closure to terrain
3. Altitude loss after takeoff
4. Unsafe terrain clearance
5. Excessive Deviation Below Glide slope
6. Advisory Callouts
7. Windshear Alertin

  Finally the session ended with the discussion on TCAS:Traffic Collision Avoidance System

TCAS traffic display · Vertical deviation indicator     

TCAS is an aircraft collision avoidance system designed to reduce the incidence of mid-air collisions between aircraft. It monitors the airspace around an aircraft for other aircraft equipped with a corresponding active transponder, independent of air traffic control, and warns pilots of the presence of other transponder-equipped aircraft which may present a threat of mid-air collision (MAC). It is a type of airborne collision avoidance system mandated by the International Civil Aviation Organization to be fitted to all aircraft with a maximum take-off mass (MTOM) of over 5700 kg (12,586 lbs) or authorized to carry more than 19 passengers.

Session 4 @ SOAR in Avembsys

                                   As per the schedule session 4 was started at 3 pm on 7th Jan , in this session we learnt the classification of aircraft , difference between aircraft and spacecraft, then we saw a video - AVIANCA 52    
and finally the Mentor discussed on ILS- Instrument Landing System .
              
                 The difference between aircraft and spacecraft-    Spacecraft have internal combustion engine for power to propel itself in the outer space where vacuum exits.
              But in the aircraft the propeller sucks the atmospheric air and it compressed and released at high pressure to provide thrust for an aircraft which helps in propelling.



 Aircrafts are classified based on the :-


Space they operate

• Aircraft
• Spacecraft

Based on Propulsion

•  propelled : Airplane
•  unpropelled :Airships / Glider

Based on Crew

•  Manned : Airplane
•  Unmanned : UAV/RPV

Based on wings

•  Fixed wings
•  Rotary wings

Based on types of Wings

•  Monoplane
•  Biplane
•  Triplane

Based on Landing Mode

•  Sea
•  Land
•  Amphibian

                
 Based on Engine

•  Propeller
•  Turbofan
•  Turboprop

Based on #Engine

•  Single
•  Twin
•  Multiple

Based on Function

•  Fighter

            

•  Bomber
•  Transport

There are many special types of aircrafts such as

•  Reconnaissance
•  A.W.A.C.S (Airborne Warning And Control System)
•  Microplane
•  Aerial Refueling
•  VTOL
•  Stealth
•  Aircraft Carrier

 we also discussed briefly on Bermuda Triangle.
      In the second part we saw a video-  crash details about                      AVIANCA 52
           It was on Jan 25th the flight was shceduled from Bogato - NewYork , about 158 passengers were travelling in this flight . The plane crashed due to many reason. There was lack of communication between different ATCs and the main reason could be that the flight was made to wait for a long time and it ran out of fuel and there were many more reasons.But after all this sir gave us the food for thought that what are the different strategies or remedies to be taken to avoid such evidences.
                Then we also understood what is ILS -Instrument Landing System : 
                            

An instrument landing system (ILS) is a ground-based instrument approach system that provides precision guidance to an aircraft approaching and landing on a runway, using a combination of radio signals and, in many cases, high-intensity lighting arrays to enable a safe landing during instrument meteorological conditions (IMC), such as low ceilings or reduced visibility due to fog, rain, or blowing snow.

                 So to be continued for next class.............

Jan , 5th 2011 Session 3 @ SOAR in AVEMBSYS

                Hello Friends , after a long break Avembsys session started ,for which all of us were waiting since our exams finished.
           Session started with basics of 'C' Programming by one of our friend and he cleared many complicated concepts like Pointers and many more....
        Then came our tech-lead  and he started with the basics of AERODYNAMICS. This fundamental structure includes many concepts  like mass,momentum,couple,viscocity which increases with increase in speed, temperature, different types of pressure like  gauge pressure/Absolute pressure,static pressure and total/stagnation pressure.In addition to this he also  gave us the  basic and first principle of aircraft ie. Pitot tube which is mainly related with speed of an aircraft.Then gave the brief idea about gas laws such as isothermal and adiabatic processes. Apart from altitude aircraft also have   attitude which includes center of gravity,aerodynamics    center ,center of pressure and mach number (ratio of speed of body to speed of sound).
           Then in the second part of session Expert  showed and explained us in slides that     how does the aircraft fly ? Before to this what are the important parts of an aircraft ?  
it include various parts such as 
fuselage  : The fuselage is that portion of the aircraft that usually contains the crew and payload, either passengers, cargo, or weapons.
wing :The wing is the most important part of an aircraft since it produces the lift that allows a plane to fly. A wing produces lift  because of its special shape, a shape called an airfoil.
engine:most modern aircraft now use some form of a jet engine . Many aircraft house the engine(s) within the fuselage itself.All jet engines operate by forcing incoming air into a tube where the air is compressed, mixed with fuel, burned, and exhausted at high speed to generate thrust.
elevator: The elevator is located on the horizontal stabilizer. It can be deflected up or down to produce a change in the downforce produced by the horizontal tail.
rudder: The rudder is located on the vertical stabilizer. It can be deflected to either side to produce a change in the side-force produced by the vertical tail.
aileron: Ailerons are located on the tips of each wing. They are deflected in opposite directions (one goes trailing edge up, the other trailing edge down) to produce a change in the lift produced by each wing.
There are many more parts but only few are listed above.
               Now coming to the end of session 
there were two videos one about VTOL (vertical take-off landing) and another one about Air France A320 crash details and   Airbus investigation pilot vs plane.
                Finally Sir discussed about projects and he also assigned some hardware projects to the students who were interested in doing such projects.............
   to be contd in next session    

Nov , 27 2010 Session 1 at SOAR in AVEMBSYS

      
     
      
               The first class of AVEMBSYS on 27th oct, started as per the schedule that is  'C' programming language-An introduction to professional programming ,as it is named.  
         Sir had begun the session by giving an example of  finding the prime numbers.He applied various logic which enhances the performance of the program.                       
           Then he took various scenarios to make us understand that "to be engineer we should always think as an engineer in every aspects".I can say its something like"THINK BEFORE YOU INK as an ENGINEER".   
      Now it was our turn,  meant to say sir asked us to give various innovative ideas about the project for final year.
       Some students  came up with their new extraordinary and extremely challenging ideas ,this created curiosity in rest of students to think for and against their ideas. 
                      
      So to conclude the first class motivated us to step in the field of creativity and innovation.