Some of ARRA ’ s aims include smart grid technology, retrofitting of homes and federal buildings, automated aviation traffic control, advancing freight and passenger rail services, and upgrading water and waste facilities.

Some early examples of this involved aviation medicine and the use of helicopters, and the transfer of critical care patients between facilities.

Some aviation historians consider this the first act of aviation terrorism in history.

Some matters of aviation were transferred to the '" Vorläufige Bundesstelle für Luftfahrtgerät und Flugunfalluntersuchung '" ( Provisional Federal Office for Avionic Devices and Investigation of Aviation Accidents ) established on 15 September 1953 in Bonn.

Some aviation historians continue to perpetuate the resulting belittling of the important experimental work of the Factory during this period, and the exaggeration of the failings of Factory production types, several of which were described in sensationally derogatory terms.

Some European nations were using airplanes for military purposes and Canada's Minister of Militia and Defence, Sam Hughes, who was organizing the Canadian Expeditionary Force ( CEF ), inquired how Canada could assist military aviation.

Some years later an analyst from Oppenheimer & Company, citing Lorenzo and business-partner Carney ’ s strategies of substituting obsolete planes with jets, eliminating unprofitable routes in exchange for destinations with higher demand, and instituting half-price “ peanut-fares ” for the first time in the aviation industry, noted TIA ’ s ability to compete and win against much larger and financially stronger companies.

Some Francoist aviation raids that were directed against strategic targets as railway stations and factories, invariably provoked a number of civilian victims since it took place in high density populated neighborhoods.

Some countries that require formal certification frequently do so through non-government ultralight aviation organizations.

Some aviation engines have experienced cooling problems when used as pushers.

* Some aircraft, particularly light general aviation airplanes and older helicopters, have service ceilings so low that they may stall simply trying to maintain level flight.

Some channels between 123. 100 and 135. 950 are available in the US to other users such as government agencies, commercial company advisory, search and rescue, military aircraft, glider and ballooning air-to-ground, flight test and national aviation authority use.

Some crude is imported to meet the needs of the refinery which produces liquid petroleum gases, unleaded motor gasoline, avjet / kerosene, diesel / heating oil, fuel oil and aviation gasoline among other products.

Some aircraft in Belarus and Ukraine ( such as Tu-160s ) were returned to Russia, sometimes in return for debt reductions, as well as a long range aviation division based at Dolon in Kazakhstan.

Some AMEs are designated " senior aviation medical examiner ", and may issue first-class certificates, which are required for pilots flying in air carrier operations.

Some of Rocky's less traditional academic offerings include aviation programs, equestrian programs, and physician assistant programs.

Some of the hangars still on the airport grounds are registered with the National Register of Historic Places, since they date back to the earliest days of aviation.

Some of its area of concern overlaps that of admiralty law and, in many cases, aviation law is considered a matter of international law due to the nature of air travel.

Some engines also use cast iron crankshafts for low output versions while the more expensive high output version use forged steel.

Some 19th-century or earlier experimental engines used external flames, exposed by valves, for ignition, but this becomes less attractive with increasing compression.

Some layout engines such as Trident / MSHTML and Presto are associated primarily or exclusively with a particular browser such as Internet Explorer and Opera respectively.

Some engines convert heat from noncombustive processes into mechanical work, for example a nuclear power plant uses the heat from the nuclear reaction to produce steam and drive a steam engine, or a gas turbine in a rocket engine may be driven by decomposing hydrogen peroxide.

Some engines ( air or water cooled ) also have an oil cooler.

" Some unusual engines ", 1975 The Institution of Mechanical Engineers, London.

Some specialised search engines such as Google Scholar offer a way to facilitate searching for academic resources such as journal articles and research papers.

Some real-time software 3D engines based on ray tracing have been developed by hobbyist demo programmers since the late 1990s.

Some engines were equipped with a switch that cut out only some rather than all of the cylinders to ensure that the engine kept running and did not oil up.

Some search engines apply improvements to search queries to increase the likelihood of providing a quality set of items through a process known as query expansion.

Some SSTO vehicles use the same engine for all altitudes, which is a problem for traditional engines with a bell-shaped nozzle.

Some SSTO vehicles simply use very high pressure engines which permit high ratios to be used from ground level.

Some designs for SSTO attempt to use airbreathing jet engines that collect oxidiser and reaction mass from the atmosphere to reduce the take-off weight of the vehicle.

Some commercial aircraft with turboprop engines include the Bombardier Dash 8, ATR 42, ATR 72, BAe Jetstream 31, Embraer EMB 120 Brasilia, Fairchild Swearingen Metroliner, Saab 340 and 2000, Xian MA60, Xian MA600, and Xian MA700, Fokker 27, 50 and 60.

Some of the most popular and successful online sites or search engines of the 2000s included Google, Yahoo !, Wikipedia, Amazon, eBay, MySpace, Facebook, Twitter, and YouTube.

Some search engines, like Yahoo, use automated processes to detect soft 404s.

Some 100-200 engines completed their mission on Soviet and Russian satellites until the late 1990s.

Some are carbureted, usually the smaller engines.

Some of the Shuttle systems integrated in the simulation are the main propulsion system, main engines, solid rocket boosters, ground liquid hydrogen and liquid oxygen, external tank, flight controls, navigation, and avionics.

Some search engines give a higher rank to results where the keyword searched for appears in the URL.

Some search engines like Vivísimo try to group found web pages into automated categories in an attempt to show various genres the search hits might fit.

Some older biplane designs, such as the Grumman Ag Cat and the aforementioned An-2 ( in the form of the An-3 ) are available in upgraded versions with turboprop engines.

Some small propeller-driven aircraft engines still use the updraft carburetor design.

Some lower-compression piston engines can operate on unleaded mogas, and turbine engines and diesel engines — neither of which requires lead — are appearing on some newer light aircraft.