Civil Rights
Movements, leaders, victories and the continuing fight for equality.
q2K BHP
Black History Portal
THE BHP WIRE —
HIDDEN TRUTHS
What's New!
Explore the people, places, events, achievements, struggles and stories that shaped our journey.
Movements, leaders, victories and the continuing fight for equality.
Innovation, patents, science, technology and world-changing contributions.
Pioneers, champions, Negro Leagues, records, activism and excellence.
Meet the people whose lives, choices and achievements shaped the journey.
Black towns, communities, institutions and places where history happened.
Moments that changed communities, movements, institutions and the nation.
In 1968 Shirley Chisholm became the first Black woman elected to the United States Congress. In 1972 she launched a campaign for the Democratic presidential nomination, breaking another political barrier.
MORE →Reflects the personal views, recollections, and perspective of the author, Mike Davis.
This is a personal recollection on the Move fire on May 13, 1985
Xtrac Limited, also known as Xtrac Transmission Technology, is a British engineering company founded in 1984 by the former Hewland engineer Mike Endean to make 4WD systems and gearboxes for rallycross and later rally and racing cars. Endean, together with Chris Goddard, who had been working on the electronic components essential to the system, in 1983 developed the first Xtrac 4WD system, for Norwegian rallycross star Martin Schanche. Schanche had thought up the idea of a changeable hydraulic 4WD system (his 1984 ERC winning Ford Escort Mk3 Xtrac-Zakspeed had a stepless FWD:RWD ratio of 28:72 to 50:50) and financed its development. This 560bhp so-called Xtrac No. 1 was bought by Endean, in the mid-1990s, who raced it himself for many a year in carsprints and hillclimbs.
"Xtrac started making gearboxes in the mid to late 1980s for the then-new Group A rally cars from their original premises in Wokingham and then continued to do so after moving in 1986 to a new 20,000 sq ft factory in Finchampstead".[1]
In 2000, Xtrac built a bespoke 8,200 m2 (88,000 sq ft) high tech factory in Thatcham, Berkshire, England, and is currently supplying many top level sectors of motor sport, including F1, prototype and GT sportscars, IndyCar, Grand-AM, rally cars and touring cars. In 2010 the company supplied its complete 1044 gearbox, designed and developed in only six months to three F1 teams: Lotus, Virgin and HRT. This is mated to the Cosworth CA2010 engine.[2]
In addition to supplying many high-profile motorsport customers, Xtrac has expanded in other areas such as automotive, marine and aerospace. The Pagani Huayra was a vehicle which used the Xtrac 1007 AMT transmission.
In 2019, it was announced that Xtrac would be the sole supplier of gearboxes for the US based NASCAR Championship, this was due to start in 2021, but with COVID-19 restrictions being in place this was delayed until 2022.[3]
In 2020, it was announced that Xtrac would supply gearboxes as part of the hybrid power unit for the Le Mans Daytona h endurance hybrid sport cars, with Bosch supplying the motor generator unit and Williams Advanced Engineering supplying the batteries.[4]
Source: Wikipedia. Article content is retrieved live through the MediaWiki API.
Xtrac Limited, also known as Xtrac Transmission Technology, is a British engineering company founded in 1984 by the former Hewland engineer Mike Endean to make 4WD systems and gearboxes for rallycross and later rally and racing cars. Endean, together with Chris Goddard, who had been working on the electronic components essential to the system, in 1983 developed the first Xtrac 4WD system, for Norwegian rallycross star Martin Schanche. Schanche had thought up the idea of a changeable hydraulic 4WD system (his 1984 ERC winning Ford Escort Mk3 Xtrac-Zakspeed had a stepless FWD:RWD ratio of 28:72 to 50:50) and financed its development. This 560bhp so-called Xtrac No. 1 was bought by Endean, in the mid-1990s, who raced it himself for many a year in carsprints and hillclimbs. "Xtrac started making gearboxes in the mid to late 1980s for the then-new Group A rally cars from their original premises in Wokingham and then continued to do so after moving in 1986 to a new 20,000 sq ft factory in Finchampstead". In 2000, Xtrac built a bespoke 8,200 m2 (88,000 sq ft) high tech factory in Thatcham, Berkshire, England, and is currently supplying many top level sectors of motor sport, including F1, prototype and GT sportscars, IndyCar, Grand-AM, rally cars and touring cars. In 2010 the company supplied its complete 1044 gearbox, designed and developed in only six months to three F1 teams: Lotus, Virgin and HRT. This is mated to the Cosworth CA2010 engine. In addition to supplying many high-profile motorsport customers, Xtrac has expanded in other areas such as automotive, marine and aerospace. The Pagani Huayra was a vehicle which used the Xtrac 1007 AMT transmission. In 2019, it was announced that Xtrac would be the sole supplier of gearboxes for the US based NASCAR Championship, this was due to start in 2021, but with COVID-19 restrictions being in place this was delayed until 2022. In 2020, it was announced that Xtrac would supply gearboxes as part of the hybrid power unit for the Le Mans Daytona h endurance hybrid sport cars, with Bosch supplying the motor generator unit and Williams Advanced Engineering supplying the batteries.
The Penske PC-26 was an open-wheel racecar designed by Nigel Bennett and manufactured by Penske Cars in Poole, Dorset, that was used by Team Penske to compete in the 1997 CART Championship. Whilst a development of the PC-25, the PC-26 was designed to address the twitchy nature of the previous year's car. Five chassis were produced and driven by Al Unser Jr. and Paul Tracy. The Ilmor-produced 850 bhp Mercedes-Benz IC108D engine served as the powerplant, driving through an Xtrac gearbox within a Penske housing. Aerodynamic changes from the previous year's car included revised sidepod inlets and a longer, sharper nose. The Delco Gen V electronics package was carried over from 1996 and remained a Penske-exclusive system. The PC26 proved to be a formidable short oval car, Paul Tracy recorded three victories in Rio, Nazareth and Gateway. The victory at Gateway marked the 99th for the team and the final victory for a Penske Cars-produced chassis. Penske Racing would have to wait three years to gain its 100th victory. The latter part of the season saw a variety of problems including an eye problem for Tracy as well as a lack of raw pace.
Super 2000 is an FIA powertrain specification used in the World Rally Championship, the British Touring Car Championship, the World Touring Car Championship, and other touring car championships. The engines were originally 2 L naturally aspirated, and later 1.6 L turbocharged units were allowed producing approximately 280 bhp. The goal of the Super 2000 classification is to allow more manufacturers and privateers to race by reducing the cost of a competitive car. In order to cut costs and shorten development time, the Super 2000 rally cars originally used a common control gearbox and drivetrain made by the French company, Sadev. The FIA has since announced that Xtrac and Ricardo Consulting Engineers will be allowed to also manufacture S2000 gearboxes to FIA specification. This is to further cut costs by introducing competition into gearbox supply. These new rules allowed Ford to build from scratch their S2000 Fiesta vehicles in Australia, in as little as 14 weeks, starting out with a Super 1600 chassis and rollcage.
A kinetic energy recovery system (KERS) is an automotive system for recovering a moving vehicle's kinetic energy under braking. The recovered energy is stored in a reservoir (for example a flywheel or high voltage batteries) for later use under acceleration. Examples include complex high end systems such as the Zytek, Flybrid, Torotrak and Xtrac used in Formula One racing and simple, easily manufactured and integrated differential based systems such as the Cambridge Passenger/Commercial Vehicle Kinetic Energy Recovery System (CPC-KERS). Xtrac and Flybrid are both licensees of Torotrak's technologies, which employ a small and sophisticated ancillary gearbox incorporating a continuously variable transmission (CVT). The CPC-KERS is similar as it also forms part of the driveline assembly. However, the whole mechanism including the flywheel sits entirely in the vehicle's hub (looking like a drum brake). In the CPC-KERS, a differential replaces the CVT and transfers torque between the flywheel, drive wheel and road wheel.
Before the 1921 destruction of Tulsa’s Greenwood District, Black residents had created a remarkable center of business and community life. The district included stores, professional offices, entertainment venues and homes owned by Black citizens. Understanding Greenwood means learning what was built—not only what was burned.
MORE →Shirley Chisholm, elected in 1968.
