Table of Contents
What is ballast in aviation?
Ballast. Ballast is removable or permanently installed weight in an aircraft used to bring the center of gravity into the allowable range.
What does it mean when a pilot says the plane is heavy?
maximum takeoff weight
The term heavy is used during radio transmissions between air traffic control and any aircraft which has been assigned a maximum takeoff weight (MTOW) rating of 136 tonnes (300,000 lb) or more. All aircraft produce wingtip vortices that create wake turbulence in flight. …
What does the weight and balance moment measure?
Moment—A force that causes or tries to cause an object to rotate. This force is measured in pound-inches (lb/in) and is the product of the weight of an item multiplied by its arm. For example, 200 pounds of fuel located 40 inches from the datum line would have a moment of 8,000 lb/in.
What is a ballast plate?
Ballast is material that is used to provide stability to a vehicle or structure. A compartment within a boat, ship, submarine, or other floating structure that holds water is called a ballast tank. Water should move in and out from the ballast tank to balance the ship.
What is ballast give the importance in aircraft weight and balance?
As ballast can be a removable or permanently installed weight, it can be used to simulate aircraft loading or to bring the centre of gravity into the allowable range. The loading, or weight and balance, of an aircraft is one of the most important items in the flight test as it affects both performance and stability.
What is moment in aviation?
Moment—the product of the weight of an item multiplied by its arm. Moments are expressed in pound-inches (in-lb). Total moment is the weight of the airplane multiplied by the distance between the datum and the CG.
What is the meaning of ballast in the Dictionary?
dictionary thesaurus. noun. bal·last | \\ ˈba-ləst \\. (Entry 1 of 2) 1 : a heavy substance (such as rocks or water) placed in such a way as to improve stability and control (as of the draft of a ship or the buoyancy of a balloon or submarine) tossed several tons of ballast overboard.
How much more energy does a ballast use?
Ballast factor typically runs between about .70 and 1.20, which means that a ballast can run a lamp on up to 30\% less energy (and produce 30\% less light); or up to 20\% more energy with 20\% greater lumen output.
What is ballast in railway tracks?
Ballast is a granular material which is placed and packed below and around the railway sleepers. Different types of ballast materials used are broken stone, sand, gravel, moorum, brickbats etc. The main purpose of ballast is to transmit the load from sleepers to the formation (consolidated track bed) and to provide drainage facilities to the track.
What is a ballast factor and why is it important?
A normal ballast factor provides you with the lamp’s stated lumens (using the stated wattage). And a high ballast factor actually pushes a lamp to produce more lumens with more wattage than you see on the packaging, though it shortens the lamp’s life as well. Why would you choose a ballast with low or high ballast factors?