【题目】An altimeter(高度计) is an instrument used in an airplane to tell the pilot how high he is flying. T he altimeter used in most airplanes is a kind of barometer(气压计), which, like barometer found in ordinary homes, is a measuring instrument for air pressure. T he weight of ...
1. Why do airplanes take longer to fly west than east? It can take five hours to go west-east from New York (NY) to London but seven hours to travel east-west from London to NY. The reason for the difference is an atmospheric phenomenon (大气现象) known as the jet stream (气流)....
Peter A. Iles, in Encyclopedia of Energy, 2004 4.1.1 Unmanned Aerial Vehicles Several applications currently provided by satellites are being planned for unmanned aerial vehicles (UAVs), which include high-flying unmanned airplanes, airships (blimps), or balloons. PV arrays provide propulsion power...
An “air burst” is defined as one in which the weapon is exploded in the air at an altitude below 100,000 feet, but at such a height that the fireball (at roughly maximum brilliance in its later stages) does not touch the surface of the earth.’ Small asteroids of this size ...
B.Ballpoint pen are good for writing in airplanes. C.Fountain pens may leak ink. D.Biros’ company bought Bic.5. What’s the main idea of this passage? A.We use pens and pencils every day. B.There were many kinds of pens before ballpoint pens. C.Pens and pencils are very useful ...
of the plane – the area least subject to impact – from its original position in the landing wells (起落 架舱). The same year, the Federal Aviation Authority required that the boxes, which were never actually black, be painted orange or yellow to aid visibility. Modern airplanes have two...
You should see a table appear in your console with various rows filled with data for overhead airplanes, including their altitude and flight number. Now that we’ve got our ADS-B decoder installed, we can download the projection code. I wrote a simple program using python and the pygame li...
We will accelerate the development of intelligent, practical, and lightweight specialized rescue equipment that withstands extreme environments such as high altitude, special terrain and primitive forest areas. We will encourage and support the promotion and application of advanced safety technology and ...
Airworthiness should depend on the maintenance programs, which also establishes the replacement of time change items, the overhaul of engines, propellers, and various parts and appliances. The certification of operators, and in particular their organization, operational procedures, manuals, crew employment...
A fast or robust system could ignore the GPS velocity and rely entirely on vtas with a potentially insignificant reduction in the accuracy of altitude flown. View chapterExplore book Airplanes, Light Darrol Stinton, in Encyclopedia of Physical Science and Technology (Third Edition), 2003 III.C ...