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Boom Technology
Boom Technology, Inc. (trade name Boom Supersonic) is an American company designing a , 65-88-passenger supersonic airliner. Named the Boom Overture, the airliner is planned to have a range of and to be introduced in 2025. After being incubated by Y Combinator in 2016, Boom Technology raised $51 million of venture capital in 2017, and $100 million by January 2019. The Boom XB-1 Baby Boom one-third-scale demonstrator is expected to begin flight testing in 2022. History The company was founded in Denver in 2014. It participated in a Y Combinator startup incubation program in early 2016, and has been funded by Y Combinator, Sam Altman, Seraph Group, Eight Partners, and others. In March 2017, $33 million were invested by several venture funds: Continuity Fund, RRE Ventures, Palm Drive Ventures, 8VC and Caffeinated Capital. Boom secured $41 million of total financing by April 2017. In December 2017, Japan Airlines invested $10 million, raising the company capital to $51 million: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Private Company
A privately held company (or simply a private company) is a company whose shares and related rights or obligations are not offered for public subscription or publicly negotiated in the respective listed markets, but rather the company's stock is offered, owned, traded, exchanged privately, or Over-the-counter (finance), over-the-counter. In the case of a closed corporation, there are a relatively small number of shareholders or company members. Related terms are closely-held corporation, unquoted company, and unlisted company. Though less visible than their public company, publicly traded counterparts, private companies have major importance in the world's economy. In 2008, the 441 list of largest private non-governmental companies by revenue, largest private companies in the United States accounted for ($1.8 trillion) in revenues and employed 6.2 million people, according to ''Forbes''. In 2005, using a substantially smaller pool size (22.7%) for comparison, the 339 companies on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sam Altman
Samuel H. Altman ( ; born April 22, 1985) is an American entrepreneur, investor, programmer, and blogger. He is the CEO of OpenAI and the former president of Y Combinator. Early life and education Altman grew up in St. Louis, Missouri; his mother is a dermatologist. He received his first computer at the age of 8. He was raised Jewish. He attended John Burroughs School for high school and studied computer science at Stanford University until dropping out in 2005. In 2017, he received an honorary degree from the University of Waterloo. Altman is gay, and has been out since his youth. Career Loopt In 2005, at age 19, Altman co-founded and became CEO of Loopt, a location-based social networking mobile application. After raising more than $30M in venture capital, Loopt was shut down in 2012 after failing to get traction. It was acquired by the Green Dot Corporation for $43.4 million. Y Combinator Altman began as a part-time partner at Y Combinator in 2011. In February 2014, Altman ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trijet
A trijet is a jet aircraft powered by three jet engines. In general, passenger airline trijets are considered to be second-generation jet airliners, due to their innovative engine locations, in addition to the advancement of turbofan technology. Trijets are more efficient than quadjets, but not as efficient as twinjets, which replaced trijets as larger and more reliable turbofan engines became available. Design One consideration with trijets is positioning the central engine. This is usually accomplished by placing the engine along the centerline, but still poses difficulties. The most common configuration is having the central engine located in the rear fuselage and supplied with air by an S-shaped duct; this is used on the Hawker Siddeley Trident, Boeing 727, Tupolev Tu-154, Lockheed L-1011 TriStar, and, more recently, the Dassault Falcon 7X. The S-duct has low drag, and since the third engine is mounted closer to the centerline, the aircraft will normally be easy to hand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Composite Materials
A composite material (also called a composition material or shortened to composite, which is the common name) is a material which is produced from two or more constituent materials. These constituent materials have notably dissimilar chemical or physical properties and are merged to create a material with properties unlike the individual elements. Within the finished structure, the individual elements remain separate and distinct, distinguishing composites from mixtures and solid solutions. Typical engineered composite materials include: * Reinforced concrete and masonry *Composite wood such as plywood *Reinforced plastics, such as fibre-reinforced polymer or fiberglass *Ceramic matrix composites ( composite ceramic and metal matrices) *Metal matrix composites *and other advanced composite materials There are various reasons where new material can be favoured. Typical examples include materials which are less expensive, lighter, stronger or more durable when compared with com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Concorde
The Aérospatiale/BAC Concorde () is a retired Franco-British supersonic airliner jointly developed and manufactured by Sud Aviation (later Aérospatiale) and the British Aircraft Corporation (BAC). Studies started in 1954, and France and the UK signed a treaty establishing the development project on 29 November 1962, as the programme cost was estimated at £70 million (£ in ). Construction of the six prototypes began in February 1965, and the first flight took off from Toulouse on 2 March 1969. The market was predicted for 350 aircraft, and the manufacturers received up to 100 option orders from many major airlines. On 9 October 1975, it received its French Certificate of Airworthiness, and from the UK CAA on 5 December. Concorde is a tailless aircraft design with a narrow fuselage permitting a 4-abreast seating for 92 to 128 passengers, an ogival delta wing and a droop nose for landing visibility. It is powered by four Rolls-Royce/Snecma Olympus 593 turbo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Delta Wing
A delta wing is a wing shaped in the form of a triangle. It is named for its similarity in shape to the Greek uppercase letter delta (Δ). Although long studied, it did not find significant applications until the Jet Age, when it proved suitable for high-speed subsonic and supersonic flight. At the other end of the speed scale, the Rogallo flexible wing proved a practical design for the hang glider and other ultralight aircraft. The delta wing form has unique aerodynamic characteristics and structural advantages. Many design variations have evolved over the years, with and without additional stabilising surfaces. General characteristics Structure The long root chord of the delta wing and minimal structure outboard make it structurally efficient. It can be built stronger, stiffer and at the same time lighter than a swept wing of equivalent lifting capability. Because of this it is easy and relatively inexpensive to build – a substantial factor in the success of the Mi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Business Class
Business class is a travel class available on many commercial airlines and rail lines, known by brand names which vary, by airline or rail company. In the airline industry, it was originally intended as an intermediate level of service between economy class and first class, but many airlines now offer business class as the highest level of service, having eliminated first-class seating. Business class is distinguished from other travel classes by the quality of seating, food, drinks, ground service and other amenities. In commercial aviation, full business class is usually denoted 'J' or 'C' with schedule flexibility, but can be many other letters depending on circumstances. Airlines History Airlines began separating full-fare and discounted economy-class passengers in the late 1970s. In 1976, KLM introduced a Full Fare Facilities (FFF) service for its full fare economy-class passengers, which allowed them to sit at the front of the economy cabin immediately behind first cla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supersonic Transport
A supersonic transport (SST) or a supersonic airliner is a civilian supersonic aircraft designed to transport passengers at speeds greater than the speed of sound. To date, the only SSTs to see regular service have been Concorde and the Tupolev Tu-144. The last passenger flight of the Tu-144 was in June 1978 and it was last flown in 1999 by NASA. Concorde's last commercial flight was in October 2003, with a November 26, 2003 ferry flight being its last airborne operation. Following the permanent cessation of flying by Concorde, there are no remaining SSTs in commercial service. Several companies have each proposed a supersonic business jet, which may bring supersonic transport back again. Supersonic airliners have been the objects of numerous recent and ongoing design studies. Drawbacks and design challenges are excessive noise generation (at takeoff and due to sonic booms during flight), high development costs, expensive construction materials, high fuel consumption, extremel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Electric J85
The General Electric J85 is a small single-shaft turbojet engine. Military versions produce up to of thrust dry; afterburning variants can reach up to . The engine, depending upon additional equipment and specific model, weighs from . It is one of GE's most successful and longest in service military jet engines, with the civilian versions having logged over 16.5 million hours of operation. The United States Air Force plans to continue using the J85 in aircraft through 2040. Civilian models, known as the CJ610, are similar but supplied without an afterburner and are identical to non-afterburning J85 variants, while the CF700 adds a rear-mounted fan for improved fuel economy. Design and development The J85 was originally designed to power a large decoy missile, the McDonnell ADM-20 Quail. The Quail was designed to be released from a B-52 Stratofortress in-flight and fly for long distances in formation with the launch aircraft, multiplying the number of targets facing the SA-2 su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greensboro, North Carolina
Greensboro (; formerly Greensborough) is a city in and the county seat of Guilford County, North Carolina, United States. It is the third-most populous city in North Carolina after Charlotte and Raleigh, the 69th-most populous city in the United States, and the largest city in the Piedmont Triad metropolitan region. At the 2020 census, its population was 299,035. Three major interstate highways (Interstate 40, Interstate 85, and Interstate 73) in the Piedmont region of central North Carolina were built to intersect at this city. In 1808, Greensborough (the spelling before 1895) was planned around a central courthouse square to succeed Guilford Court House as the county seat. The county courts were thus placed closer to the county's geographical center, a location more easily reached at the time by the majority of the county's citizens, who traveled by horse or on foot. In 2003, the previous Greensboro–Winston-Salem– High Point metropolitan statistical area was redefin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piedmont Triad International Airport
Piedmont Triad International Airport (commonly referred to locally as "PTI") is an airport located in unincorporated Guilford County, North Carolina, west of Greensboro, serving the Piedmont Triad region of Greensboro, High Point and Winston-Salem as well as the entire Piedmont Triad region in North Carolina, United States. The airport, located just off Bryan Boulevard, sits on a 3,770 acre (1,526 ha) campus and has three runways. It is the third busiest airport in North Carolina, averaging 280 takeoffs and landings each day. PTI is owned and operated by the Piedmont Triad Airport Authority. This airport is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a primary commercial service airport since it has over 10,000 passenger boardings (enplanements) per year. A proposal to rename the airport to "Central North Carolina International Airport" passed in December 2017; the renaming was slated to become effective on January 1, 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japan Airlines
, also known as JAL (''Jaru'') or , is an international airline and Japan's flag carrier and largest airline as of 2021 and 2022, headquartered in Shinagawa, Tokyo. Its main hubs are Tokyo's Narita International Airport and Haneda Airport, as well as Osaka's Kansai International Airport and Itami Airport. JAL group companies include Japan Airlines, J-Air, Japan Air Commuter, Japan Transocean Air, and Ryukyu Air Commuter for domestic feeder services, and JAL Cargo for cargo and mail services. JAL group operations include scheduled and non-scheduled international and domestic passenger and cargo services to 220 destinations in 35 countries worldwide, including codeshares. The group has a fleet of 279 aircraft. In the fiscal year ended 31 March 2009, the airline group carried over 52 million passengers and over 1.1 million tons of cargo and mail. Japan Airlines, J-Air, JAL Express, and Japan Transocean Air are members of the Oneworld airline alliance network. JAL was establi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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