omniomni/omni-engineering huggingface dataset:
AmeriPlanes Mitchell Wing A-10. The Mitchell Wing A-10 and T-10 are a family of American cantilever, tricycle landing gear, high-wing, pusher configuration, one and two seat ultralight aircraft designed for amateur construction or supplied as completed aircraft. The aircraft were designed by Don Mitchell and were produced by a number of companies, the last being AmeriPlanes of Truro, Iowa.

Development
The A-10 is a 1982 development of the Mitchell Wing B-10 ultralight, itself developed from the Mitchell Wing hang glider of 1977. Their designer Don Mitchell had worked on the Northrop YB-49 bomber project. In place of the B-10's composite wing, the A-10 features a metal wing, attached in cantilever fashion to an open cockpit that can be equipped with a streamlined pod. The low-drag design results in a 16:1 glide ratio for the A-10. The aircraft can be used as a motor glider or as a cross country touring aircraft.

The wing is constructed from sheet aluminium, with a main spar in the form of a D-cell. The ribs are made from aluminium sheet and the wing is covered in the same material. The fuselage is built from aluminium tubing, riveted together. A cockpit streamlined pod was optional. The design has folding wings and was intended for trailering from the onset.

The standard engine for the A-10 is the  Rotax 277, but the  Rotax 447 and the  Zenoah G-25 have also been installed. Construction time of the kit was rated as 80–120 hours.

The A-10 was produced by a number of companies, including Mitchell Aircraft Corporation and Mitchell Wing, Inc. of Porterville, California, MitchellWing Aircraft Company of Kansas, Tulsa Mitchell Wing, Inc. of Tulsa, Oklahoma, Higher Planes of Dover, Kansas and lastly AmeriPlanes of Truro, Iowa. AmeriPlanes acquired the design on 15 April 1998 when Larry Smith took possession of the MitchellWing Aircraft Company. Ameriplanes was a one-person company and provided both kits and completed aircraft, but the company went out of business in the mid-2000s and the A-10 is no longer in production.

The A-10 was developed into a two-seat trainer, with side-by-side seating, designated the T-10. The T-10 incorporated three feet more wingspan and has a reduced glide ratio of 14:1.

Variants
A-10
Single seat design powered by a  Rotax 277,  Rotax 447 or  Zenoah G-25.
A-10B Plain Jane
Basic, stripped down single seat design powered by a  Zenoah G-25. From the factory the model did not include the cockpit streamlining pod or other extras and was intended to comply with the US FAR 103 Ultralight Vehicles regulations, with an empty weight of 
A-10D
Deluxe model improved single seat design powered by a  Zenoah G-25.
T-10
Two seat side-by-side design powered by a  Rotax 447 or  Rotax 503.
T-10D
Deluxe model two seat side-by-side design powered by a  Zenoah G-50.

Aircraft on display
EAA AirVenture Museum – A-10

Specifications (A-10)

See also

References

External links

Archives of AmeriPlanes on Archive.org
Photos of the B-10 model

1980s United States ultralight aircraft
Don Mitchell aircraft
Gotha Go 147. The Gotha Go 147 was a German experimental two-seat tailless aircraft designed in 1936 by Gothaer Waggonfabrik and Dr. A. Kupper. Two examples were built and flown. Development was abandoned before the start of World War II.

Design and development
The original aim was to create a two-seat fighter with an exceptional field of fire for the tail gunner. The design featured a high-mounted gull wing, gently tapered and swept back to give a leading-edge sweep of 38 degrees. The gull centre section had a straight leading edge, while endplate fins and rudders were mounted on the tips. The crew sat in tandem behind the single engine.

An experimental prototype was first constructed, designated the Go 147a. With a length of  and powered by a Siemens Sh 14A air-cooled radial engine delivering .

Flight tests demonstrated instability, but showed enough promise for a production prototype, the Go 147b, to be built. Several roles were now under consideration, including gunnery training, a twin-engined fighter with a second, pusher engine in the rear, and an observation aircraft. Featuring an N-strut braced wing with full-span trailing-edge slotted flaperons, the design also had a fixed undercarriage. Construction was conventional, with welded steel-tube fuselage and wooden two-spar wing. Power came from a more powerful  Argus engine. Although planned, no armament was fitted.

Operational history
The Go 147a first flew in 1936. During trials, a number of stability problems were encountered.

The redesigned Go 147b was registered as D-IQVI. Extensive trials failed to cure its poor flight characteristics and the project was terminated in 1938 or 1939.

Specification (Go 147b)

See also
 Westland-Hill Pterodactyl V: Near-contemporary of similar role and configuration.
 Gotha Go 229: Later Gotha tailless flying wing, also known as the Horten Ho 229.

References

Bibliography

Go 147
Tailless aircraft
SCORE Class 4. SCORE Class 4 is a limited four-wheel, single or two-seat vehicle class that competes in the SCORE off-road race series including the Baja 1000, Baja 500, San Felipe 250, Baja Sur 500 and the SCORE Desert Challenge. Class 4 was added in 2009.

This is an open class and all components will be considered open unless restricted by SCORE International.

Vehicle description
Limited 4-wheel, single or two-seat vehicles. Limited 2.4-liter Ecotec sealed engine. Must use Delphi MEFI 4 or MEFI 5 ECU. Frame, suspension and appearance are similar to that of a Class 10 vehicle.

Class requirements

Engine
Stock GM Ecotec 2.2-liter four-cylinder engine. Single seat vehicles are limited to 2.2 liter engines but two-seat vehicles are limited to 2.4 liter. 2.4 liter engines must use the cable controlled 2.2 liter throttle body. No fly by wire throttle bodies are permitted.

Engine must remain stock as delivered by the manufacture. Engine must be sealed by SCORE prior to being installed into vehicle. Must use stock Delphi MEFI ECU 4 or 5.

Suspension
Unlimited.

Body
No production bodied vehicles are allowed in this class.

References

SCORE International (2006). "2011-2015 Off-Road Racing Rules and Regulations".
SCORE International. " 2009 New Classes & Existing Class Rule Amendments"

External links
Official SCORE International website
Official SCORE International Journal
Official SCORE International Carbon TV channel
Waggon Union. Waggon Union was a German manufacturer of rail vehicles and bus bodies, that was also known as Deutsche Waggon und Maschinenfabrik (German Wagon and Machines Factory) or DWM.

The company was based in Berlin and was originally a branch of the Deutsche Waffen und Munitionsfabriken, a munitions manufacturer best known as the designer and maker of the Luger pistol. After World War II the Berlin establishment switched to the renovation and building of railway and other public transport equipment, and in 1952 it changed its name to Deutsche Waggon und Maschinenfabrik.

Waggon Union was bought by ABB Henschel in 1990. In 1996 ABB Henschel became part of ABB Daimler Benz Transportation (Adtranz), which was subsequently acquired by Bombardier of Canada.

Rolling stock manufacturers of Germany
Gerardo Meléndez. Gerardo J. Meléndez is a San Juan, Puerto Rico-born scientist who served as Director of the Armaments Research Development Engineering Center (ARDEC) headquartered at Picatinny Arsenal in New Jersey from 2010 until his Civil Service retirement in May 2014.

During his civilian career with the U.S. Army, which began in 1983 as an electronics engineer for the U.S. Army Communications and Electronics Command in New Jersey, Meléndez was a strong advocate of incorporating commercial technological advances in military applications, including equipment based on consumer products generated by companies such as Apple Inc. and Microsoft. He also served as chief of the Automatic Target Recognition Team for the Product Manager Tactical Endurance Synthetic Aperture Radar, as well as chief of the Intelligence and Information Warfare Directorate’s Battle Space Identification Branch. in 2014 he retired after 31 years of Army civilian in ceremony at Picatinny Arsenal. 

He is a graduate of Tulane University in New Orleans, Louisiana, where he obtained his Bachelor of Science degree in biomedical engineering in 1980, and Brown University in Providence, Rhode Island, where he obtained a Master of Science degree in electrical engineering in 1983, and he obtained his Ph.D in electrical engineering at Drexel University in 1993. He subsequently earned a master's degree in strategic studies from the Army War College.

Awards and distinctions
• Department of the Army Distinguished Civilian Service Award  (2014)

• Department of the Army Fellowship (1987–1993)

• United States Army Communications-Electronics Research, Development and Engineering Center Director Award for Technical Excellence (1989)

• United States Army CECOM Leader of the Year Award (1998)

• Executive Excellence in the Military awarded by Maj. Gen. Nick Justice at the 2010 Hispanic Engineer National Achievement Awards Conference (2010)

• Keynote speaker at the Society of Hispanic Professional Engineers Conference, Washington, D.C. (2010)

• College of Engineering Alumni Circle of Distinction (2012)

References

Drexel University alumni
Living people
Scientists from San Juan, Puerto Rico
Puerto Rican people of Spanish descent
Tulane University alumni
United States Army War College alumni
Year of birth missing (living people)
Fieseler Fi 168. 

The Fieseler Fi 168 was a projected German ground attack aircraft designed in 1938 by Frederik Kassel, who created the aircraft after a request from the Technisches Amt (Technical Department) of the RLM Reichsluftfahrtministerium - (German aviation ministry).

The two-engine aircraft was a strut-braced high-wing monoplane with two tail-booms and a narrow fuselage pod carried by struts under the centre-section, and was designed to operate in areas featuring rough terrain, and boasted two rigidly mounted forward-facing machine guns. The former development director Erich Bachem described the Fi 168 as a flying "tank destroyer".

The project was discontinued at the direction of the RLM in September 1939.

References

Bibliography

Abandoned military aircraft projects of Germany
Shelf angle. In masonry veneer building construction, a shelf angle or masonry support is a steel angle which supports the weight of brick or stone veneer and transfers that weight onto the main structure of the building so that a gap or space can be created beneath to allow building movements to occur.

Background
Traditional masonry buildings had thick Load-bearing walls that supported the weight of the building. Openings in these load bearing walls such as doors and windows were typically small and spanned by steel lintels or masonry arches.

Modern buildings
The invention of skeleton frame buildings made it possible to reduce the thickness of the walls and have wide openings such as ribbon windows extending across most or all of the building facade.  In these buildings, brick, stone, or other masonry cladding is often just a single wythe of material called a veneer since it is non-loadbearing.  The only way to support the weight of this veneer across a wide opening is by providing a shelf angle on which the masonry bears. The shelf angle, in turn, is attached to major elements of the building structure such as floor beams or structural columns.  Shelf angles are in reality a horizontal expansion joint which allows growth of the brick below the shelf angle and to allow movement or shrinkage of the frame without putting stresses on the brick veneer.   In the United States, common sizes for steel shelf angles include L 3" x 3" x 1/4" and L 4" x 4" x 1/4".In the UK and Europe shelf angles / masonry support are predominantly manufactured in stainless steel to prevent corrosion and failure. These are bespoke to the building's frame and engineered to take the loads required.

References

See also 

Masonry
Building materials
Building engineering
Natarajan Shankar. Natarajan Shankar is a computer scientist working at SRI International in Menlo Park, California, where he leads the Symbolic Analysis Laboratory.

Education
Shankar received his Ph.D. degree in computer science, under advisors Robert S. Boyer and J Strother Moore, from the University of Texas at Austin in 1986.

His Ph.D. thesis was published as the book "Metamathematics, Machines, and Goedel's Proof" by Cambridge University Press in 1994.

Career
Shankar initially served as a research associate at Stanford University, from 1986 to 1988. In 1989, he joined SRI International's Computer Science Laboratory. While at SRI, he has used the Boyer–Moore theorem prover to prove metatheorems such as the tautology theorem, Godel's incompleteness theorem and the Church-Rosser theorem. He has contributed to the development of automated reasoning technology, deductive systems and computational engines, including the Prototype Verification System.

In 2009, he was named an SRI Fellow. The fellowship recognizes exceptional staff members for their outstanding contributions to science. The other SRI Fellows in the Computer Science Laboratory at SRI are Peter G. Neumann, John Rushby, Patrick Lincoln and Carolyn Talcott.

References

External links
Personal homepage

Living people
Indian computer scientists
SRI International people
University of Texas at Austin alumni
Year of birth missing (living people)
Dornier S-Ray 007. The Dornier S-Ray 007 is a two-seat amphibious aircraft concept designed by Dornier Technologie.

The concept is similar to that of the Dornier Libelle from the 1920s, and thus originally, the aircraft also carried the name Dornier Libelle. However, it was later changed to Dornier Stingray. Before the first aircraft could be built, the name was changed a third time to the Dornier S-Ray 007. The leader of the project is , grandson of Claude Dornier and owner of Dornier Technologie.

The flying boat is a high-wing aircraft, featuring a one-piece wing which is connected with the centrally-mounted Rotax 912S engine and propeller, on a stable aerodynamically-shaped central support pylon, to the fuselage. The S-Ray 007 is built from reinforced plastics with carbon fibre reinforcements, which makes the flying boat very resistant to salt water. The aircraft is equipped with retractable landing gear, and two 50 litre fuel tanks.

The maiden flight of the Dornier S-Ray 007 was held on 14 July 2007 at Friedrichshafen airport, and the aircraft was piloted by Gerhard Thalhammer.

Specifications

See also
 Dornier Seastar

References

S-Ray
Flying boats
Amphibious aircraft
Single-engined tractor aircraft
Parasol-wing aircraft
Aircraft first flown in 2007
Aircraft with retractable tricycle landing gear
Weserflug P.1003. The Weserflug P.1003, was a two-seat German aircraft designed in 1938 by Weserflug. The aim of the project was to construct a military tilt rotor aircraft with VTOL characteristics for use in World War II.

At the beginning of 1938 plans for a tilt rotor aircraft were drawn up, and the project, named P.1003, was supported by the Air Ministry. The aircraft was a monoplane featuring a fairly conventional fuselage. The aircraft was built with high mounted wings that could be hinged halfway along, and with a propeller at each wing tip.  A single Daimler-Benz DB 600 engine was mounted in the middle of the fuselage, and drive shafts connected the engine to the propellers, which were abnormally large with a diameter of 4 metres, where for a similar aircraft the propellers would have had a diameter of 2 metres. The initial plans included the aircraft being fitted with retractable landing gear.

For takeoff, the entire outer part of the wing could be rotated 90 degrees so that the propellers pointed straight up, lifting the aircraft off the ground in a manner similar to that of a helicopter. Once in the air, the wing and the propeller would be rotated to a horizontal position, so the plane could go into horizontal flight.

The aircraft was never constructed due to the complexity of the VTOL system.

References

German military aircraft
Grigorovich M-24. The Grigorovich M-24 was a Soviet biplane flying boat built during the 1920s.

Dmitri Grigorovich began developing the aircraft in April 1922, whilst he was flying the successful Grigorovich M-9. Flight tests with the aircraft, which featured a 14-metre wingspan and a maximum speed of 160 km/h, began in 1923 and subsequently 40 aircraft were produced, which were delivered from April 1924. The flight performance was poor, however, and the pilots and maintenance personnel complained about the aircraft's many defects.

Following these complaints, Grigorovich began working on a revised version of the aircraft as the M-24bis. One development he made was building a stronger engine, with 260 hp, as opposed to the original which produced 220 hp. Twenty of the new aircraft were built, and they were used, until 1926, by the Soviet Navy for coastal reconnaissance.

References

M-24
Flying boats
Biplanes
Single-engined pusher aircraft
Edson de Castro. Edson de Castro (September 14, 1938 – September 6, 2024) was an American computer engineer and businessman, best known for being a chief founder of Data General and for designing that company's Nova series of computers.

Life and career 
De Castro was born in Plainfield, New Jersey, on September 14, 1938. He was founder and CEO of Data General Corporation throughout the 1970s, the 1980s and into the 1990s when he was replaced by Ronald L Skates, a former Price Waterhouse Coopers partner. He also was the project manager in charge of developing the PDP-8 mini computer at Digital Equipment Corporation, before leaving to form Data General Corporation. As CEO of Data General, he appeared in Tracy Kidder's book The Soul of a New Machine.

De Castro married Jean DeCastro in Norwich, Connecticut, in 1963. Jean was a school teacher and Edson worked at Digital Equipment. They divorced in 1980. Edson de Castro died on September 6, 2024, at the age of 85.

Books

References 

1938 births
2024 deaths
Computer hardware engineers
American technology chief executives
People from Plainfield, New Jersey
Denel Vektor M1 60mm Mortar. The Denel Vektor M1 60mm Mortar is a mortar manufactured by the South African firm Denel Land Systems for use by the South African Army and the Irish Defence Forces (since 2003). Around 100 were also sold to the Forces Armées Rwandaises in 1992, during the Rwandan Civil War.

References 

Infantry mortars
Cold War artillery of South Africa
Denel
60mm mortars
FMRAAM. The FMRAAM (Future Medium Range Air to Air Missile) was a modified ramjet powered version of the Hughes (now Raytheon) AIM-120 AMRAAM beyond visual range air-to-air missile that was conceived during the mid-1990s to fulfill British requirements for a new longer range missile to use in place of the AMRAAM on their new Eurofighter Typhoon fighter. It competed with and lost to the MBDA Meteor, thus never reaching production.

See also

References 

International air-to-air missiles
Raytheon Company products
Joseph Glynn (engineer). Joseph Glynn, FRS FRSA (6 February 1799 – 6 February 1863) was a British steam engine designer.

He was born the son of James Glynn of the Ouseburn Iron Foundry in Newcastle upon Tyne and taught by John Bruce at the Percy Street Academy.

He started work as an assistant to his father at the Ouseburn foundry until 1820 when he designed and built a steam engine to drain the Talkin Colliery in Cumberland. In 1821 he designed the system for street lighting by coal gas in Berwick-on-Tweed and subsequently in Aberdeen.

He moved to become Chief Engineer at the Butterley Iron Company in Derbyshire, where he improved the design of the emergent steam engines up to 200 horse power. He was then commissioned to design a series of marine steam engines for the General Steam Navigation Company including the William Jolliffe, built in 1826, with a beam engine of 100 h.p. and the Harlequin built in the same year again with a Butterley Co.built beam engine  and for the Royal Navy (HMS Firefly and HMS Firebrand).

His most remembered achievement was the design and construction of steam engines to drain the Fens of eastern England, making it possible to farm many thousands of acres for the first time.

He wrote a book "Cranes, the Construction of, and other Machinery for Raising Heavy Bodies"

He was elected a Fellow of the Royal Society in 1838. He died in London in 1863 and was buried in Kensal Green Cemetery.

References

1799 births
1863 deaths
People from Newcastle upon Tyne
Fellows of the Royal Society
Burials at Kensal Green Cemetery
Fellows of the Royal Society of Arts
ASTM International Award of Merit. The ASTM International Award of Merit is an award that was established in the industrial era following World War II as a response to the growing need to recognize outstanding contributions to the leadership and authorship of consensus standards for manufacturing specifications and analysis.  The Award, established in 1949 by the ASTM International Board of Directors, is the highest society award granted to an individual ASTM member. It is given for distinguished service and outstanding leadership participation in consensus standards activities sponsored by ASTM International committees. Recipients of the Award of Merit also receive the honorary title of Fellow of ASTM International (FASTM).

The ASTM International Award of Merit is presented at various technical conferences throughout the United States and is given on the basis of merit. The various ASTM Committees do not award this every year and some committees average one award every 4–5 years.

External links
 Award of Merit Guidelines.
 Award of Merit Recipients.

See also

 List of engineering awards

References

American awards
Trimethylsulfoxonium iodide. Trimethylsulfoxonium iodide is a sulfoxonium salt derived from dimethylsulfoxide. It is iodide salt of a common sulfoxonium ions.  This compound, a colorless solid, is commercially available. It may be prepared by the alkylation of dimethyl sulfoxide with iodomethane:
 (CH3)2SO + CH3I → (CH3)3SO+I− 
The trimethylsulfoxonium ion features a tetrahedral sulfur center.  The ion has idealized C3v symmetry.  It is isoelectronic with trimethylphosphine oxide.

Trimethylsulfoxonium iodide is used to generate dimethyloxosulfonium methylide by reaction with sodium hydride. The latter compound is used to prepare epoxides from ketones and aldehydes.

References

Organosulfur compounds
Iodides
Reagents for organic chemistry
Methyl compounds