omniomni/omni-engineering huggingface dataset:
Electric Transit. Electric Transit may refer to:

 Electric Transit, Inc. (ETI), a former manufacturer of trolley buses, from 1994 to 2004
 Electric Transit (software company), a short-lived software publishing company in the mid-1980s
 Electric transit, public transit that employs electricity for propulsion, such as trams, trolleybuses and other kinds of electric buses

See also
 Servicio de Transportes Eléctricos (Electric Transit Service – public agency in Mexico City)
Swing Bridge (Belize). The Belize City Swing Bridge is a swing bridge located in downtown Belize City, Belize. It connects the north side of Belize City with the south side and spans Haulover Creek, a tributary of the Belize River.

A tourist destination and historical landmark of Belize, it is the oldest swing bridge in Central America and one of the few manually operated swing bridges in the world still in use. The Maritime Museum of Belize is located nearby.

History
Constructed in Liverpool, England, and brought to Belize City by a United States company in New Orleans, it was built to allow sailing fishing boats with tall masts to pass the bridge and continue up the river to offer supplies and services to the city. The construction of the new bridge replaced several wooden bridges that had been built by locals during the mid-19th century to cross the Haulover Creek. 

Haulover Creek is actually an inlet for the Belize River but was called so because cattlemen had to pull their cattle across the creek with ropes ("hauling over the creek"). The bridge was constructed in 1922 and installation was finished in 1923. It was manually opened by four men cranking by hand. The bridge was swung twice a day, once in the morning and again in the evening, to allow boat traffic through.

Renovations
The bridge was damaged in the category 5 1931 hurricane that hit the city. It was said to have moved into the street. Again damaged by Hurricane Hattie in 1961 and by Hurricane Mitch in 1998, repairs were made after Mitch and further restoration was done in the first decade of the 21st century. Talks were made about automating the bridge however locals have balked at this realizing it would take away a major tourist destination in the city.
In 1987, an approved donation by China, resulted in the design and thereafter, fabrication of a modern replacement bridge for the old Belize City swing bridge location. It was shipped to Belize in 1989 but never arrived. It was returned to China because Belize established diplomatic relations with Taiwan that year at the time of the shipment.

Operation
The bridge requires a minimum of four men to crank it by hand until it is perpendicular with Haulover Creek. After traffic has passed, it is hand cranked again until it has been returned to its parallel position with the creek. Traffic is halted for well over an hour before the process is completed. Since 2007, the bridge is only manually opened by special request as traffic on Haulover Creek is not as heavy as before.

In film
The Belize City Swing Bridge was shown in the 1980 film, The Dogs of War, starring Christopher Walken. Scenes for the fictional African country of Zangaro were shot in Belize City, Belize. The bridge was positioned parallel to the creek and then manually swung back into position in the scene.

External links
 

Swing bridges
Buildings and structures in Belize City
Bridges in Belize
Bridges completed in 1923
1923 establishments in the British Empire
RM-90 Blue Scout II. The RM-90 Blue Scout II was an American sounding rocket and expendable launch system which was flown three times during 1961. It was a member of the Scout family of rockets. Blue Scout II was a military version of the NASA-operated Scout X-1, with adjustments to the payload fairings, engine nozzles and fins.

Blue Scout II had a total length of 21.65 m and a finspan of 2.84 m.

It was capable of sending a 30 kg payload to a 300 km orbit at 28.00 degrees. It was a four stage vehicle, with the following engines:

 Stage 1: Algol 1B, solid propellant;

 Stage 2: Castor 2 (TX-354-3), solid propellant;

 Stage 3: Antares 1A (Star 31/X-254), solid propellant;

 Stage 4: Altair 1A (X-248), solid propellant.

Blue Scout II was used for two HETS test flights, and the launch of the Mercury-Scout 1 satellite for NASA. This rocket and RM-89 Blue Scout I were replaced by Blue Scout Junior.

Blue Scout II parameters

Launches
All three Blue Scout II launches occurred from Launch Complex 18B at the Cape Canaveral Air Force Station, the same launch pad used for the Blue Scout I. 

The first two launches were successfully conducted on 3 March and 12 April 1961 respectively, using vehicles D-4 and D-5.
They both carried HETS A2 plasma research experiments on suborbital trajectories. 

The third launch was conducted on 1 November, using vehicle D-8, with the Mercury-Scout 1 satellite for NASA, which was intended to reach low Earth orbit. The launch failed after the rocket went out of control, and was destroyed by the range safety officer 43 seconds after liftoff.

References

1961 in spaceflight
Blue Scout II
Vought
RM-89 Blue Scout I. The RM-89 Blue Scout I was an American sounding rocket which was flown four times between January 1961 and April 1962. It was used for two HETS test flights, and a flight to investigate atmospheric re-entry. It was a member of the Scout family of rockets.

The Blue Scout I was a four-stage rocket derived from the Scout X-1. All four launches occurred from Launch Complex 18B at the Cape Canaveral Air Force Station. The first two launches were conducted on 7 January and 9 May 1961 respectively. They both carried HETS A1 plasma research experiments on suborbital trajectories. The second two launches were conducted on 12 April 1962, with a payload that was intended to investigate atmospheric reentry.

The first two launches was successful, however recovery of the payload failed. The second two launches failed due to problems with the Blue Scout.

The Blue Scout II was a four-stage derivative of the Blue Scout I. It was flown four times in 1961, twice with HETS payloads, and twice with the Mercury-Scout 1 satellite.

References

 

1961 in spaceflight
1962 in spaceflight
Blue Scout I
Sounding rockets of the United States
JNTUA College of Engineering, Pulivendula. The College of Engineering, Pulivendula is a constituent college of Jawaharlal Nehru Technological University Anantapur (JNTUA) in India. The college was established in 2006, and is 3 kilometres north of Pulivendula, Andhra Pradesh.

Overview
JNTUA College of Engineering, Pulivendula was established in 2006. Its foundation was laid in 2005 by Dr. Y. S. Rajasekhara Reddy. The campus is located in Pulivendula, Kadapa District in Andhra Pradesh, India, and is spread across . It has six academic blocks, one administrative building, a central library, four hostel blocks, two dining areas, staff quarters, and a guest house.

The college started its first academic year with five academic branches, including CSE, ECE, MEC, EEE, and BioTech. Later, in 2011 the Civil Engineering branch was added. The first three years saw roughly 300 students enrolled in each branch.

The college campus is . The academic block was inaugurated on 25 December 2006 and the department was later provided with separate blocks: a total of 6 academic blocks and one administration building. A library, staff quarters, hostel, and a guest house were added.

The college also inaugurated the statue of Jawaharlal Nehru.

References

External links
 JNTUA College of Engineering Pulivendula

2006 establishments in Andhra Pradesh
Universities and colleges established in 2006
Engineering colleges in Andhra Pradesh
Universities and colleges in Kadapa district
Rotary storage. Rotary storage systems are specialised office filing units designed to offer increased storage volumes per square foot compared to traditional filing units.

Rotary storage systems 
Rotary storage systems are filing cabinets; specialised office furniture units usually consisting of a double sided rotating unit, allowing the user to access two full sides of filing from one point. A foot pedal or lever is often used to operate the rotation mechanism, thus allowing user easy control.

Capacity, siting and speed advantages 
Many rotary filing systems can store the contents of seventeen four drawer filing cabinets in just three eight-tier units, allowing multiple times the storage volume created by traditional filing cabinets.  A wide range of fitments makes the systems suitable for storing a vast array file types and multimedia. For security, each unit can invariably be locked individually.

Rotary storage systems usually have no shutters or doors, and therefore can be placed very close to walls or partitioning, for a very efficient use of floor space. Units are often used to divide office space.

Rotary storage units can allow faster file access than banks of conventional cabinets, as 50% of stored items are immediately visible to the operator, the rest typically being a pedal push away.

References

Office equipment
Furniture
Cabinets (furniture)
ASTM F568M. ASTM F568M is an ASTM International standard for metric bolts, screws and studs that are used in general engineering applications. It is titled: Standard Specification for Carbon and Alloy Steel Externally Threaded Metric Fasteners. It defines mechanical properties for fasteners that range from M1.6 to 100 in diameter. The standard was withdrawn in 2012. and has been replaced by ISO 898-1

This standard defines property classes, the metric equivalent of a screw grade, that are almost identical to those defined by ISO 898-1, except for the addition of the 8.8.3 and 10.9.3 classes. These two additional standards are fasteners that have the same mechanical properties as their base property class (i.e. 8.8 and 10.9), but are made from weathering steel. The standard is referenced by ASME B18.29.2M, which defines insert length selection for helical coil screw thread inserts.

This is a standard set by the standards organization ASTM International, a voluntary standards development organization that sets technical standards for materials, products, systems, and services.

Mechanical properties

See also 
 ASTM A325
 ISO metric screw thread
 Shear force
 Ultimate tensile strength

References

Bibliography
.

ASTM standards
Screws
Auster Atlantic. 

The Auster C6 Atlantic was a British four-seat cabin monoplane designed and built by Auster Aircraft Limited. Development of the type was abandoned after initial flight tests.

Design and development
The C6 Atlantic was designed as a high-wing monoplane, four-seat executive tourer, powered by a 185 hp (138 kW) Continental E-185-10 piston engine and based on the Auster J/5T with a tricycle landing gear and other modern items such as control wheels. One aircraft was built which, as a fitted out fuselage registered G-APHT, was statically displayed at the 1957 SBAC Show at Farnborough. Subsequently a pair of Autocrat wings were fitted and early flight tests were encouraging. However, these flights were curtailed by a nose leg collapse due to an inferior nosewheel strut which had been fitted only for the static display and not replaced with the correct item before the first flight.

Although the airframe was repaired and modified, the directors considered the future of the Atlantic at length. An estimate was prepared of the projected development costs and this totalled in excess of £100,000, so that the break-even point required the sale of 300 aircraft. Since maximum sales were envisaged as probably 100 at the most, and with no outside financial help, development was reluctantly abandoned. The sole aircraft was stored until being brought out of storage in 1960 for comparison with the proposed Auster D.8; since production of the C.6 would have required the manufacture of new jigs, the D.8 was pursued instead, ultimately becoming the Beagle Airedale.

Specifications

References

Notes

Bibliography

 

Abandoned civil aircraft projects of the United Kingdom
Atlantic
1950s British civil utility aircraft
Austin Kestrel. 

The Austin Kestrel was a British two-seat biplane designed and built by the Austin Motor Company. Only one aircraft was built.

Design and development
Designed to enter a 1920 Air Ministry competition the Kestrel was a conventional biplane with an open cockpit with side-by-side seats for two. Registered G-EATR the Kestrel came third in the small aeroplane class. The company decided to concentrate on motor car production and the aircraft was sold in 1924 but not flown again.

Specifications

References

Notes

Bibliography

External links
Austin Memories: Aircraft Production

1920s British civil utility aircraft
Kestrel
Abandoned civil aircraft projects of the United Kingdom
Aircraft first flown in 1920
Type 99 155 mm self-propelled howitzer. The  is a 155 mm self-propelled howitzer of the Japanese Ground Self-Defense Force, which was developed as the successor to the Type 75 155 mm self-propelled howitzer.

History
Research and development for a successor to the Type 75 155 mm self-propelled howitzer started in 1985. The new weapon would have a 155 mm gun barrel 52 calibers long (L52) instead of the 30 calibers (L30) barrel of the Type 75, and would mount the latest fire-control system. Japan Steel Works was the primary contractor, developing and manufacturing the main gun and turret. Mitsubishi Heavy Industries was tasked to design the chassis.

The designing stage cost 5 billion yen and was completed in 1992. After various technical and practical tests, the first vehicle was delivered to the training division of Japan Ground Self-Defense Force in 1999.

Characteristics
The Type 99 uses a modified chassis from the Mitsubishi Type 89 IFV, lengthened with an additional road wheel. It has a 52 caliber gun barrel. The secondary armament consists of a roof-mounted .50 caliber (12.7 mm) machine gun, fitted with a shield. The armor provides protection against small arms fire and artillery shell splinters. The vehicle is powered by a diesel engine, providing 600 horsepower. A travel lock for the gun is mounted on the front of the hull, which folds back onto the glacis plate when not in use. The howitzer is resupplied from the Type 99 ammunition resupply vehicle.

Operators 

 Japan Ground Self-Defense Force
 Fuji School
 Fuji School(Combined Training)Brigade
 JGSDF Artillery School Unit
 Ordnance School
  Northern Army
 2nd Division
 2nd Artillery Regiment(Mechanized)
 5th Brigade
 5th Artillery Unit
 7th Division
 7th Artillery Regiment(Mechanized)
 11th Brigade
 11th Artillery Unit (Mechanized)
 Northern Army Combined Brigade
 1st Sergeant Training Unit

Similar vehicles

References

155 mm artillery
Self-propelled howitzers of Japan
Tracked self-propelled howitzers
Military vehicles introduced in the 1990s
Dart Flittermouse. 

The Dart Flittermouse is a British single-seat ultralight designed by A R Weyl and built by Dart Aircraft Limited at Dunstable, England.

Design and development
The Flittermouse was a high-wing braced pusher monoplane powered by a 25 hp Scott Squirrel piston engine with a pusher propeller. An open frame carried the tail unit. One aircraft was built and registered G-AELZ

In 1938 the rear skid was removed and the main landing gear moved back and a castoring nose wheel was fitted. After a number of private owners it was scrapped at Blackbushe Airport in 1951.

Specifications

References

Notes

Bibliography

1930s British sport aircraft
Flittermouse
Single-engined pusher aircraft
High-wing aircraft
Aircraft first flown in 1936
ASTM A354. ASTM A354 is an ASTM International standard that defines chemical and mechanical properties for alloy steel bolts, screws, studs, and other externally threaded fasteners. It is officially titled: Standard Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners.

This is a standard set by the standards organization ASTM International, a voluntary standards development organizations that sets technical standards for materials, products, systems, and services.

Mechanical properties
This standard defines the properties for fasteners up to 4 inches in diameter. They are not to be used in applications where they are tensioned to more than 50% of their tensile strength. In those applications structural heavy hex bolts are to be used, as defined by ASTM A490, even though they have the same strength.

Recommended nuts
The standard also specifies what nuts are recommended for use with the defined fasteners. Note that nuts of a greater strength can also be used.

References

ASTM standards
Screws
Dixanthogen disulfide. Dixanthogen disulfides are a class of organosulfur compounds with the formula .  Usually yellow solids, they are the product of the oxidation of xanthate salts.    A common derivative is diethyl dixanthogen disulfide. Diisopropyl dixanthogen disulfide is commercially available. They are structurally related to thiuram disulfides.

Uses and reactions
Diethyl dixanthogen disulfide is a component for froth flotations used, inter alia, for the separation of sulfide minerals like pyrrhotite. Diisopropyl dixanthogen disulfide is a reagent in the synthesis of sulfur heterocycles.

Dialkoxy dixanthogen disulfides undergo desulfurization by cyanide to give bis(alkoxythiocarbonyl)sulfides:

Dixanthogens are also ectoparasiticides.

References

Thiocarbonyl compounds
Organic disulfides
Sulfur
Functional groups
Dermatologic drugs
Soft landing. A soft landing is any type of aircraft, rocket or spacecraft landing that does not result in significant damage to or destruction of the vehicle or its payload, as opposed to a hard landing. The average vertical speed in a soft landing should be about  per second or less.

A soft landing can be achieved by
 Parachute—often this is into water. 

 Vertical rocket power using retrorockets, often referred to as VTVL (vertical landing referred to as VTOL, is usually for aircraft landing in a level attitude, rather than rockets) — first achieved on a suborbital trajectory by Bell Rocket Belt and on an orbital trajectory by the Surveyor 1.

 Horizontal landing, most aircraft and some spacecraft, such as the Space Shuttle, land this way accompanied with a parachute.

 Being caught in midair, as done with Corona spy satellites and followed by some other form of landing.
 Reducing landing speed by impact with the body's surface, known as lithobraking.

See also
List of landings on extraterrestrial bodies

References 

Rocketry
Lake Alvin. Lake Alvin is an artificial lake in Lincoln County, South Dakota between Harrisburg, South Dakota and Granite, Iowa.  The lake is formed by a dam on Nine Mile Creek just before it enters the Big Sioux River, east of Harrisburg. It is part of a  recreational area.

History
Lake Alvin has always been a popular swimming location for those looking for a mid-sized beach. However, in 2005, the South Dakota GFP closed the swimming beach to the public due to high levels of coliform bacteria in the lake. A shutdown was again issued in 2009, 2013, 2014, and 2020 due to high levels of coliform bacteria.

External links
 SD Game, Fish, and Parks fish report for Lake Alvin
 Lake Alvin Recreation Area

References

Alvin
Protected areas of Lincoln County, South Dakota
Bodies of water of Lincoln County, South Dakota
Finite element model data post-processing. Finite element model data post-processing is a paradigm for transforming the often highly detailed and complex outputs of Finite Element Method (FEM) calculations into a format that is easily understood by the user. The outputs from post-processing may be used in engineering judgements or analysis, as part of validity/functionality checks on the FEM model, or for the purpose of reporting results.

Post processing of finite element data generally requires additional software or programming to specify how the data is to be transformed or presented. This software may include checks on the codes and standards to which the model must comply (e.g., the check of panel stiffened structures).  Using this software can be considered part of the knowledge-based engineering principle.

References

Finite element software
Dirk van Braeckel. Dirk van Braeckel (born 19 February 1958 in Deinze), is a Belgian car designer. He is known for the designing of various models for Volkswagen Group, especially for the Bentley brand.

Career

Born in Deinze, after leaving school, van Braeckel studied electrical engineering, before joining Ford as an apprentice car designer in Cologne, West Germany. Ford then agreed to sponsor him undertake a degree in car design at the Royal College of Art, London.

On graduation, he joined Audi in 1984, working on external design including the Audi A8 concept and Audi A3. In 1993, Volkswagen Group boss Ferdinand Piëch personally chose him to be the design head for Volkswagen's newly purchased Škoda Auto division, where he revised the entire model line-up, designing the Octavia and Fabia models.

After Volkswagen purchased Bentley in 1998 from Vickers plc, van Braeckel joined the British-based company in August 1999 as Director of Design and Styling. His brief was to design a car that could sell in higher volumes than the $240,000 Bentley Arnage model. Van Braeckel designed the Bentley Continental GT, which in 2004 sold 5,983 units, exceeding forecasts by 62%, and in 2009 the Bentley Mulsanne which was designed by him was launched.

Cars

 Audi A8 concept, 1994
 Audi A3, 1996
 Škoda Octavia, 1996
 Škoda Fabia, 1999
 Škoda Octavia, 2004
 Bentley Continental GT, 2004
 Bentley Flying Spur, 2005
 Bentley Azure, 2006
 Bentley Brooklands, 2007
 Bentley Mulsanne, 2009
 Bentley EXP 9 F, 2012

Awards

In 2007, van Braeckel was awarded the laureate of Antwerp's Christophe Plantin Prize, which honours Belgian citizens whose cultural, artistic or scientific activities contribute to the country's prestige abroad. In 2008, van Braeckel was awarded the European Automotive Design Award by Designers (Europe).

References

External links

1958 births
Living people
People from Deinze
Alumni of the Royal College of Art
Belgian automobile designers
Volkswagen Group designers
Audi people
Škoda people
NRE 3GS21B. The NRE 3GS21B is a low-emissions diesel genset locomotive built by National Railway Equipment (NRE). Instead of a single prime mover, the NRE genset locomotive is powered by three separate  Cummins QSK19C engines providing a total power output of . Each engine could be individually started or shut off depending on how much power is needed, reducing overall diesel emissions and improving fuel efficiency. More than 150 of the 3GS21B genset locomotives have been produced to date, with the majority of these units being manufactured at NRE's Mount Vernon shops in Southern Illinois. In addition, three road slug models have also been produced. The main difference between this and the NRE 3GS21C is that these units are on B-B (four wheel) trucks and the others are on C-C (six wheel) trucks.

Flexibility
Because the engines are modular, flexibility is obtained:
If one engine fails, the others can continue at reduced power.
When reduced power is needed, one or more of the engines can be turned off, saving fuel and wear and tear.
The QSK19C engine is common to the four variants of the NRE 3GS21C locomotive.
The QSK19C engine is also widely used for non-railway applications, and spare parts are readily available.

Original buyers

See also
 NRE 3GS21C

References

External links

 National Railway Equipment  – Official N-ViroMotive Product Page

B-B locomotives
NRE locomotives
Railway locomotives introduced in 2006
Diesel–electric locomotives of the United States
EPA Tier 2-compliant locomotives of the United States
Rebuilt locomotives
Standard gauge locomotives of the United States