AVIATION 2

INTRODUCTION:  Turboprop engine is the turbine engine that drives an aircraft propeller through reduction gear box .Propeller engine develops thrust by moving large mass of air through a small change in velocity.  Simple  type of turboprop consists of intake, compressor, combustion, turbine and a propelling nozzle etc.  When the turboprop are flown at correct altitude and air speed they are extremely efficient and burn less fuel than most light jet. The turboprop engine has turbine section that extracts as much as 75 to 85 percent of the total power output to drive propeller. Turbine section of the turboprop usually has more stage than that of the turbo jet engine. The Gas Generator ( Compression, Combustion section and compression turbine) performs only one function converting fuel energy into high speed rotational energy. Turboprop engine can be categorised per the method used to achieved propeller drive. These categories are:  i) Coupled power turbi...

Human life gets only once. To make this life a success and to succeed, many difficulties must be embraced. Meeting a new friend in every phase of life gives us a new experience and a new message. From birth to death, we are learning from each other. The importance of a friend in human life is mentioned. We and our behaviour are often inspired by friends.   Every moment of our lives is an invaluable gift . We have a lot of friends, but we rarely get along when we have a problem. In real life, we are ourselves - our friends. If we are to be alone someday, we must know that we must speak, we must know how to speak, and we must know what we are. Isn't it? Yes, I write, no one knows about our pain when we die. What we have learned and experienced in life is our friend. Others are mere appearances. That's the truth. Mother, father, relative, friend, husband, wife, all of us are ours. But which one of us will stay with us until we breathe? Yes, our mother, father and spouse...

Aircraft engineers deals with very specified and calibrated tools in their day to day life for the  serving of aircraft. For  Dismantling, examination, reassembly of the aircraft parts and components in accordance with the  maintenance time period these tools should be calibrated and must be available at work place . A reasonable degree of skill,in the use of hand tools is, therefore, to be expected from all trades-persons.                    COMMON HAND TOOLS : 1. ENGINEER'S RULE : It is made from high carbon steel and is classified by length and width of their graduated portion. It has a length  of 300 mm or 1 fit and can be found at 1800 mm or 6 fit. 2. SCRIBER :  It is used for making lines on the surface of metals. It is made up of high carbon steel and classified by their lengths. 3. KEY-SET RULE : It is used for making off parallel lines to the axis on the surface of tubes. These are class...