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Denel SARA
The Denel SARA (Small African Regional Aircraft) is a projected 24-passenger turboprop regional airliner with rough field capabilities. The project was announced at the Africa Aerospace and Defence exhibition in September 2014, by the state-owned defence industrial group Denel. The project has a goal of permitting landings at fields with runways shorter than 1,000m, of which there are more than 460 in South Africa alone. Design and development The SARA project originated in 2012 when a SARA Steering Committee, co-chaired by the CEOs of Denel Aerostructures SOC Ltd and Denel Aviation, was set up. Various options were considered. A high wing configuration was selected for SARA to meet the issue of foreign object debris, for example stones thrown up by the propellers during landing, taking off and taxiing. SARA will have a degree of STOL capability, but will not be optimised for STOL operations as it affects other performance parameters negatively. It will be certified under Part 25 of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turboprop
A turboprop is a turbine engine that drives an aircraft propeller. A turboprop consists of an intake, reduction gearbox, compressor, combustor, turbine, and a propelling nozzle. Air enters the intake and is compressed by the compressor. Fuel is then added to the compressed air in the combustor, where the fuel-air mixture then combusts. The hot combustion gases expand through the turbine stages, generating power at the point of exhaust. Some of the power generated by the turbine is used to drive the compressor and electric generator. The gases are then exhausted from the turbine. In contrast to a turbojet or turbofan, the engine's exhaust gases do not provide enough energy to create significant thrust, since almost all of the engine's power is used to drive the propeller. Technological aspects Exhaust thrust in a turboprop is sacrificed in favor of shaft power, which is obtained by extracting additional power (beyond that necessary to drive the compressor) from turbine ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Regional Airliner
A regional airliner or a feederliner is a small airliner that is designed to fly up to 100 passengers on short-haul flights, usually feeding larger carriers' airline hubs from small markets. This class of airliners is typically flown by the regional airlines that are either contracted by or subsidiaries of the larger airlines. Regional airliners are used for short trips between smaller towns or from a larger city to a smaller city. Feederliner, commuter, and local service are all alternative terms for the same class of flight operations. History To keep short routes economical, airlines preferred using second hand aircraft than costlier new aircraft. Older aircraft were put into short haul service as they were replaced by new longer-range designs. Post-war era Propeller aircraft of larger airlines were transferred to smaller airlines: even the De Havilland Dragon Rapide biplane, or the Douglas DC-3s, in large surplus after the war, which the Aircraft manufacturers wanted t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Africa Aerospace And Defence
The African Aerospace and Defence Expo (AAD) is an aerospace and defence exhibition held every two years at AFB Waterkloof, in Centurion, Gauteng, South Africa. The exhibition combines a trade exhibition and an air show. The AAD began in 1975 when the South African based aviation magazine World Airnews determined that a professional aerospace exhibition was appropriate, as distinguished from the traveling "barnstorming" air shows that were then prominent. The first event was held October 1975 as "Aviation Africa", at Lanseria Airport near Johannesburg, South Africa under the sponsorship of the Commercial Aviation Association of Southern Africa. The same year, Lt. General Bob Rogers of the South African Air Force instituted an open day at AFB Waterkloof, in Centurion, which eventually turned into the Defence Exhibition of South Africa (DEXSA). In 2000, Aviation Africa and DEXSA combined to become AAD. In 2006, the exhibition moved to AFB Ysterplaat in Cape Town Cape Town ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Denel
Denel SOC Ltd is a South African state-owned aerospace and military technology conglomerate established in 1992. It was created when the manufacturing subsidiaries of Armscor were split off in order for Armscor to become the procurement agency for South African Defence Force (SADF), now known as the South African National Defence Force (SANDF), and the manufacturing divisions were grouped together under Denel as divisions. It is the largest of South Africa's state owned arms companies. The company had been experiencing major financial problems since 2015 and in 2021 it was announced in Parliament that Denel was on the brink of insolvency. The company stated that its woes were due to declining local defence budgets, weakened relationships with key customers and suppliers, the inability to retain or attract skilled personnel, ongoing salary disputes and a Fitch ratings downgrade. History Denel was established as a state-owned industrial company under the Department of Public ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foreign Object Debris
In aviation and aerospace, foreign object debris (FOD), is any particle or substance, alien to an aircraft or system, which could potentially cause damage. External FOD hazards include bird strikes, hail, ice, sandstorms, ash-clouds or objects left on the runway. Internal FOD hazards include items left in the cockpit that interfere with flight safety by getting tangled in control cables, jam moving parts or short-out electrical connections. The term FOD is used to describe both the foreign objects themselves, and any damage attributed to them. Jet engine design and FOD Modern jet engines can suffer major damage from even small objects being sucked into the engine. The FAA (Federal Aviation Administration) requires that all engine types pass a test which includes firing a fresh chicken (dead, but not frozen) into a running jet engine from a small cannon. The engine does not have to remain functional after the test, but it must not cause significant damage to the rest of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
STOL
A short takeoff and landing (STOL) aircraft is a conventional fixed-wing aircraft that has short runway requirements for takeoff and landing. Many STOL-designed aircraft also feature various arrangements for use on airstrips with harsh conditions (such as high altitude or ice). STOL aircraft, including those used in scheduled passenger airline operations, have also been operated from STOLport airfields which feature short runways. Design considerations Many fixed-wing STOL aircraft are bush planes, though some, like the de Havilland Canada Dash-7, are designed for use on prepared airstrips; likewise, many STOL aircraft are taildraggers, though there are exceptions like the PAC P-750 XSTOL, the Quest Kodiak, the de Havilland Canada DHC-6 Twin Otter and the Peterson 260SE. Autogyros also have STOL capability, needing a short ground roll to get airborne, but capable of a near-zero ground roll when landing. Runway length requirement is a function of the square of the minimum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Federal Aviation Regulations
The Federal Aviation Regulations (FARs) are rules prescribed by the Federal Aviation Administration (FAA) governing all aviation activities in the United States. The FARs comprise Title 14 of the Code of Federal Regulations (CFR). A wide variety of activities are regulated, such as aircraft design and maintenance, typical airline flights, pilot training activities, hot-air ballooning, lighter-than-air aircraft, man-made structure heights, obstruction lighting and marking, model rocket launches, commercial space operations, model aircraft operations, Unmanned Aircraft Systems (UAS) and kite flying. The rules are designed to promote safe aviation, protecting pilots, flight attendants, passengers and the general public from unnecessary risk. FAR vs. 14 CFR Since 1958, these rules have typically been referred to as "FARs", short for Federal Aviation Regulations. However, another set of regulations (Title 48) is titled "Federal Acquisitions Regulations", and this has led to confu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unit Load Device
A unit load device (ULD) is a container used to load luggage, freight, and mail on wide-body aircraft and specific narrow-body aircraft. It allows preloading of cargo, confidence the containerised load will fit in the aircraft and efficient planning of aircraft weight and balance and reduced labour and time in loading aircraft holds compared with 'bulk-loading' single items of cargo or luggage by hand. Each ULD has its own packing list or manifest so that its contents can be tracked. A loaded aircraft cargo pallet secured with a cargo net also forms a ULD, but its load must be gauged for size in addition to being weighed to ensure aircraft door and hold clearances. The IATA publishes ULD regulations and notes there are 900,000 in service worth more than US$1 billion, averaging $ each. Types ULDs come in two forms: pallets and containers. ULD pallets are rugged sheets of aluminium with rims designed to lock onto cargo net lugs. ULD containers, also known as cans and pods, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maximum Takeoff Weight
The maximum takeoff weight (MTOW) or maximum gross takeoff weight (MGTOW) or maximum takeoff mass (MTOM) of an aircraft is the maximum weight at which the pilot is allowed to attempt to take off, due to structural or other limits. The analogous term for rockets is gross lift-off mass, or GLOW. MTOW is usually specified in units of kilograms or pounds. MTOW is the heaviest weight at which the aircraft has been shown to meet all the airworthiness requirements applicable to it. MTOW of an aircraft is fixed and does not vary with altitude, air temperature, or the length of the runway to be used for takeoff or landing. Maximum permissible takeoff weight or "regulated takeoff weight", varies according to flap setting, altitude, air temperature, length of runway and other factors. It is different from one takeoff to the next, but can never be higher than the MTOW. Certification standards Certification standards applicable to the airworthiness of an aircraft contain many requirements ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Denel Aircraft
Denel SOC Ltd is a South African state-owned aerospace and military technology conglomerate established in 1992. It was created when the manufacturing subsidiaries of Armscor were split off in order for Armscor to become the procurement agency for South African Defence Force (SADF), now known as the South African National Defence Force (SANDF), and the manufacturing divisions were grouped together under Denel as divisions. It is the largest of South Africa's state owned arms companies. The company had been experiencing major financial problems since 2015 and in 2021 it was announced in Parliament that Denel was on the brink of insolvency. The company stated that its woes were due to declining local defence budgets, weakened relationships with key customers and suppliers, the inability to retain or attract skilled personnel, ongoing salary disputes and a Fitch ratings downgrade. History Denel was established as a state-owned industrial company under the Department of Publ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
