May 2, 2008

ANN Special Feature: Dr. Kurt Barnhart, Kansas State University - 05.01.08>

Safety critical avionics for the 777 primary flight controls system
Digital Avionics Systems, 2001. DASC. The 20th Conference, Vol. 1 (2001), pp. 1C2/1-1C2/11 vol.1.The new technologies in flight control avionics systems selected for the Boeing 777 airplane program consists of the following: Fly-By-Wire (FBW), ARINC 629 Bus, Deferred Maintenance. The FBW must meet extremely high levels of functional integrity and availability. The heart of the FBW concept is the use of triple redundancy for all hardware resources: computing system, airplane electrical power, hydraulic power and communication path. The architecture of the 777 flight controls system follows the earliest Boeing 7J7 design. The Boeing designed global DATAC bus, also known as ARINC 629 data bus, is used to communicate among all computing systems. Each DATAC bus is isolated, both physically and electrically from the other two. The three DATAC buses are not synchronized. The control system performance under the autonomous and asynchronous DATAC bus operation has been studied. The primary flight computers (PFCs) form a triple-triple redundant system; three PFC channels and three computing lanes in each channel. Each channel is also isolated, both physically and electrically from the other two. The microprocessor hardware for three computing lanes in each channel are dissimilar to facilitate detection of generic design errors of the most complicated hardware devices; microprocessors. The Byzantine general problem has been considered in the design of the PFC redundancy management to cope with functional asymmetry and communication asymmetry. The deferred maintenance is to provide hot spare modules within an LRU such that the airplane dispatchability can be enhanced. This concept is applied to the three major avionics systems, PFC, Air Data Inertial Reference System (ADIRU) and Airplane Information Management System (AIMS)

Boeing-747 Insane Takeoff!!
Boeing-747 Insane Takeoff!!snowperson49 sec - Sep 19, 2006How scarey would this be!!

Mon, 18 Sep 2006 22:27:59 PDT

Boeing Production Delays Create Big Impact on Stock Holders

Approximately six months ago shares of Boeing stock were trading at $107 dollars per share. This was a significant increase in its post 9-1-1 trading days, when the stock was trading at $29 a share. Record sales, orders and earnings were the primary drivers in the stock appreciation. Boeing and Airbus have both been developing the next generation airliners for the airline industry. Airbus, a consortium of three government countries; Spain, France, and Germany, opted for a much larger plan that could carry 700-800 passengers in single flight. Boeing chose a slightly smaller, more fuel efficient plane. Several years ago, Airbus encountered significant production delays for its A380 Super Jumbo airplane. Now, is apparent that Boeing is encountering similar delays with its’ new airliner called the Boeing 787 Dreamliner. News of production delays for the 787 have significantly impacted Boeing share price. Currently, Boeing shares are trading at approximately $79 per share, down significantly from six month ago when shares were selling at $107 per share.

Why did the production delays impact Boeing stock so significantly? One of the main reasons is that Boeing will not deliver the planned quantity of 787’s in 2008 and 2009. Boeing will also be subject to penalties for failure to deliver aircrafts in accordance with its contracts. There is also concerns that the delays will impact deliveries of non 787 aircrafts as well as the factory becomes bottled up with traveled and out of sequence work. This will also negatively impact earnings due to poor performance from cost inefficiencies. Anyone familiar with Boeing knows the impact of production delays based on previous history. Lastly, until the first aircraft is delivered, there is a significant Boeing Production Delays
amount of risk as to how bad the production delays really are. Will delays continually get pushed back or will they stick to their revised recovery plan?

MALAYSIA AIRLINES AIRBUS A380-800 DESKTOP MODEL W/GEAR - $45.95

TANS Go broke: Updates in respect to the TANS scrub plane slam into is flake…
TANS Bump: Updates opposite the TANS ice gravitate is set up downstream, halieutic present tenseR

Fri, 02 May 2008 08:00:23 EDT
Stock Buybacks, Buyback Commissions, and Conflicts of Interest: (Essay: The Boeing Buyback)
crash test Boeing 707
crash test Boeing 70731 sec - Feb 15, 2008Ca fait froid dans le dans le dos

Thu, 14 Feb 2008 22:05:38 PST
QANTAS Boeing B737-800 desktop model with stand 1:130 - $27.50
Brand new, factory sealed, SOLID INJECTION MOLDED PLASTIC snap fit model of an QANTAS B737-800. These snap-together models are highly detailed with solid injection molded plastic construction. All models assemble in minutes and include a…

Fri, 02 May 2008 00:00:00 GMT