Saturday, August 15, 2009

CRYSTAL ISLAND: the largest building in the world?



Crystal Island, proposed to be the largest building in the world, would be built in Moscow Russia. it is currently planned to have 2.5 million square meters floor space (27 million square feet, compare to Burj Dubai, 334 000 square meters, 3595100 square feet) and the height of 450 meters, almost the same height of Petronas Twin Towers which is currently holding the record of the world's tallest twin tower.

Saturday, August 8, 2009

future plane: boeing 797 the blended wing (B-2 spirit stealth bomber-like wing)






Boeing 797

The radical Blended Wing design has been developed by Boeing in cooperation with the NASA Langley Research Centre. The mammoth plane will have a wing span of 265 feet compared to the 747's 211 feet, and is designed to fit within the newly created terminals used for the 555 seat Airbus A380, which is 262 feet wide. The new 797 is in direct response to the Airbus A380 which has racked up 159 orders, but has not yet flown any passengers. Boeing decide to kill its 747X stretched super jumbo in 2003 after little interest was shown by airline companies, but has continued to develop the ultimate Airbus crusher 797 for years at its Phantom Works research facility in Long Beach, Calif. The Airbus A380 has been in the works since 1999 and has accumulated $13 billion in development costs, which gives Boeing a huge advantage now that Airbus has committed to the older style tubular aircraft for decades to come. There are several big advantages to the blended wing design, the most important being the lift to drag ratio which is expected to increase by an amazing 50%, with overall weight reduced by 25%, making it an estimated 33% more efficient than the A380, and making Airbus's $13 billion dollar investment look pretty shaky. High body rigidity is another key factor in blended wing aircraft, It reduces turbulence and creates less stress on the air frame which adds to efficiency, giving the 797 a tremendous 8800 nautical mile range with its 1000 passengers flying comfortably at mach .88 or 654 mph (+-1046km/h) cruising speed another advantage over the Airbus tube-and-wing designed A380's 570 mph (912 km/h) The exact date for introduction is unclear, yet the battle lines are clearly drawn in the high-stakes war for civilian air supremacy.

Wednesday, August 5, 2009

boeing 787 dreamliner


boeing 787 dreamliner is a mid-sized, newest aircraft from boeing corpoation currently under development. Its maximum seating capacity in a 1-class seating is between 290 to 330 passengers depending on variant. Boeing stated that it will be more fuel efficient than earlier Boeing airliners, 20 percents better efficiency than other plane of it's size and will be the first major airliner to use composite materials for most of its construction (up to 80 percents).

Monday, August 3, 2009

what is scramjet?

scramjet is just like ramjet. the process of fuel combustion is almost the same with ramjet. just that scramjet combusted the fuel supersonically to increase the efficiency of combustion. the faster the combust it's fuel, the faster the jet goes. sr-71 blackbird the fastest jet in history reach up to mach 3.4 using ramjet. the x-30 research gave up to mach 17. awesome didn't they?