Airline seating

Services are perishable. A service that is not used is lost forever. An empty airline seat is revenue lost forever, and a pharmacy without patients is an expense without compensating revenue. 

Yield management Using price and other promotions to maximize the return on investment. Usually infers a fixed capacity, such as airline seats, that is filled with customers from segments paying different prices. 

Further field tests demonstrated that in spite of the excellent thermal and fire resistance, shrinking of the fabrics occurred above the glass-transition temperature which might expose the wearer to flames. Based on the results obtained in an Air Force contract at Dynatech Co., the Celanese Research Co. developed a two-stage process that reduced the shrinkage from 50 to 6%. The process was also amenable to on-line processing. The sulfonated derivative is the fiber which was marketed by the Celanese Corp. Some end uses include replacement of asbestos, thermal and chemical safety apparel, and stack gas filter bags, airline seat covers, firemen turn coats, and race car driver suits. 

The each request works best when there is agreement on what is available, as in the case of airline seats. Each passenger requires one seat. In the application of CTP, the problem of the unit of measure of each is a world filled with features and options, which implies there are many different interpretations between the potential requested each and what is modeled or structured by the producer as an available each. Under these conditions, it is exponentially more complicated —not only for the computer, but for the humans trying to model the amount of discretion in the system. When the product has any degree of variability in configuration and process, the result is poor capacity assumptions and lengthy system calculations from which a valid promise is difficult to make. 

Airline seats are a good example of a product whose value varies by market segment. A business traveler is willing to pay a higher fare for a flight that matches his or her schedule. In contrast, a leisure traveler will often alter his or her schedule to get a lower fare. An airline that... 

People make decisions to fly based on speed, the price of the flight, and an airline s on-time arrival. If these factors are the same, then secondary concerns such as comfort become a factor—fewer seats with more spacious seating, and more room to walk about. Since greater comfort means fewer paying passengers, the airlines decision to cater to the desire for comfort will adversely affect fuel economy per passenger. 

Like classified ads, the reverse auction mechanism is commonly found in physical markets. For example, it is used to determine suppliers and contractors in laige-scale projects. In some seller s markets where products are perishable, sellers compete to unload their products before they become spoiled or unserviceable. Not surprisingly, PriceUne.com s main source of revenues is the airline industry, where unsold seats are perishable products that cannot be saved and resold at a later date. 

The increasing number of empty seats on airliners has reduced the civil transportation market, the cuts in overall military expenditure are compromising this industry s role as a spur to advanced research and the international space programmes have been reshaped to comply with the available funding. 

I have a theory (as opposed to a dream) that Heaven is a three-class Boeing 111. You can sit in a narrow seat that does not recline and eat chicken-like substances next to a screaming baby in coach class. Alternatively, you can sit in a slightly wider seat that reclines a bit more and eat a beef-like substance in business class. But the goal is to spend eternity in first class—specifically, Singapore Airlines first class. Here your seat reclines to a completely flat position, and there is a power outlet, personal video player, wireless access to the Internet, and noise-canceling headphones. There are also chefs, not microwave ovens. 

Many of the papers in this section also have applications to yield or revenue management problems such as those faced by the airlines. For example, in the airlines there is usually a fixed supply of a product (seats on a plane), with a specific deadline for the selling season (time the plane takes off). Price is... 

Data were collected from a total of 215 sectors of normal line operations in a single-aisle jet fleet of a large eoimnercial airline. All participants volunteered to have a jump-seat observer colleet data during the flight operation. 

Like other complex products, airline customers customize a wide variety of airplane features provided by aircraft manufacturers and needed to properly differentiate individual brands and to satisfy operational requirements. Airlines have the choice to modify or add among a wide variety of pre-quaUfied selections available from a large pool of industry-leading suppliers (see Chap. 14). Options are provided by either Seller-Furnished Equipment (SEE) or BFE. BFE is a term used in the aerospace industry to denote components supplied at no charge to the manufacturer by the purchaser for use in the assembly procured by the purchaser from the manufacturer. Typically, such equipment comprises specific cabin equipment (seats, galleys and galley equipment, entertainment equipment, kitchen, bathroom). 

The capacity figures shown are scheduled seats per week for airlines in April 1998 and April 2008. The data were drawn from OAG Max, a searchable database of schedules data for virtually every airline in the world Source OAG Max... 

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