The British Rail Class 10 diesel locomotive was a variation on the Class 08 diesel-electric shunter. A Blackstone diesel engine was fitted instead of one made by the English Electric company. Traction motors were by either the General Electric Company plc (GEC) or British Thomson-Houston (BTH).
The locomotives were built at the BR Works in Darlington and Doncaster over the period 1953-62. Early batches were classified D3/4 (those with GEC motors) and D3/5 (those with BTH motors).
British Rail Class 11
The British Rail Class 11 is a diesel shunting locomotive built from April 1945 to December 1952. They are based on a similar earlier batch built by the London, Midland and Scottish Railway (LMS) between 1934 and 1936.
British Rail Class 12
The British Rail Class 12 is a diesel locomotive built mainly for shunting duties.
This was the second batch of standard Southern Railway shunters based on the English Electric 6KT 350 hp (260 kW) diesel engine. These locomotives (BR numbers 15201-15203) were built by the SR in 1937 and were later classified D3/12.
The Class 12 locomotives were built at the BR Ashford Works over the period 1949–1952. They were numbered 15211–15236 and became Class 12. No locomotives survived long enough to acquire Class 12 TOPS numbers though.
British Rail Class 13
The British Rail Class 13 was formed in 1965. The Tinsley Marshalling Yard needed more powerful shunters to move vehicles around. This was provided by permanently coupling together two Class 08 shunters as a ‘master and slave’ (or ‘cow and calf’) unit. The second of the two units had its cab taken off. Both units were ballasted to improve traction. At first the units were coupled cab-to-cab but it was easier to couple Master nose to Slave cab. The thinking behind adopting this dual locomotive design is that a larger, rigid locomotive could not be used due to the risk of grounding on the hump.
British Rail Class 14
The British Rail Class 14 is a type of small diesel-hydraulic locomotive built in the mid-1960s. Twenty-six of these 0-6-0 locomotives were ordered in January 1963, to be built at British Railways Swindon railway works. The anticipated work for this class was yard shunting, trip work (between local yards) and short distance freight trains. The order was expanded to 56 in mid-1963, before work had started on the first order.
British Rail Class 15
The British Rail Class 15 diesel locomotives, also known as the BTH Type 1, were designed by British Thomson-Houston, and built by the Yorkshire Engine Company and the Clayton Equipment Company, between 1957 and 1961.
British Rail Class 16
The British Rail Class 16, originally known as the North British Type 1 was a type of diesel locomotive ordered under British Railways' . Like other Type 1 designs, they were relatively small locomotives intended primarily for local freight traffic.
British Rail Class 17
The British Rail Class 17, originally known as the Clayton Type 1, was a class of diesel locomotive operated by British Railways.
British Rail Class 20
The British Rail Class 20, originally known as an English Electric Type 1, is a class of diesel electric locomotive. 228 locomotives in the class were built by English Electric between 1957 and 1968. The large number was partly to do with the failure of other early designs in the same power range, and reliable locomotives being needed.
The locomotives were originally numbered D8000–D8199 and D8300–D8327. They are known by railway enthusiasts as "Choppers", a name taken from the distinctive beat the engine produces under load which resembles the sound of a helicopter.
Pawn (chess)
The pawn (♙♟) is the weakest piece in the game of chess. They represent infantry. Each player starts the game with eight pawns, one on each square of the second row (or rank) from the view of the player. In the white pawns start on a2, b2, c2, ..., h2, while the black pawns start on a7, b7, c7, ..., h7.
Pawns move differently than other pieces. Unlike all the other pieces, pawns cannot move backwards. Most of the time, a pawn moves by going up a single square, but the first time each pawn is moved from its starting place, it can go forward two squares. Pawns cannot use the first two-square move to jump over a square with another piece on it or to capture. Any piece in front of a pawn, white or black, stops its moving.if a pawn touches the other side it is Exchanged For one of the players pieces that got captured
The white pawn at e4 can capture either the black rook at d5 or the black knight at f5, but not the bishop at e5, which blocks its straight way forward. Unlike other pieces, the pawn does not capture in the same way as it moves. A pawn captures diagonally, one square forward and to the left or right. In the diagram to the left, the white pawn can capture either the black rook or the black knight.
An even more unusual move is the "en passant" capture.
En passant happens when a pawn uses its first-move option to move two squares forward instead of one. If it passes over a square guarded by an enemy pawn, that pawn can take the first pawn "in passing" "as if" the first pawn had moved forward only one square. The taking pawn moves into the empty square over which the first pawn moved. The first pawn is removed from the board. To capture "en passant" can only be done on the move right after the double-square pawn advance. Otherwise the chance is lost.
The "en passant" move was added in late fifteenth-century Europe, to make up for the then newly added two-square first move rule. We have no record of why the rule was added, but it is easy to see that it works to prevent the position becoming blocked and uninteresting.
Once a pawn reaches the other side of the board and cannot move further, it is promoted, meaning it can become any other piece on the board, except the king. Players usually promote their pawns to a queen because it is the next most-powerful piece on the board.
As the simplest piece in chess, the pawn was in the oldest version of chess, Chaturanga. It is present in all other types of chess around the world.
The changes which took place in the fifteenth century were aimed at allowing the pieces to develop faster, and make the game more exciting.
British Rail Class 21
The British Rail Class 21, originally known as the North British Type 2 diesel-electric, was a type of diesel locomotive built by the North British Locomotive Company in Glasgow for British Railways in 1958-1960.
Starting in 2007, the classification has been reused for new Vossloh G1206 acquired by Euro Cargo Rail/EWS.
British Rail Class 22
The British Rail Class 22, originally called the North British Type 2 diesel-hydraulic, was a class of diesel-hydraulic locomotives designed for the Western Region of British Railways and built by North British Locomotive Company. They were very similar in appearance to the Class 21 diesel-electrics. The Class 22 was nicknamed "Baby Warship" because of its similarity to the British Rail Class D20/2.
Category:Locomotives by builderBritish Rail Class 23
British Rail Class 23, originally called English Electric Type 2, was a class of ten diesel-electric locomotives built by the English Electric Company in 1959. They were numbered from D5900 to D5909. The power unit was a Napier Deltic T9-29 9 cylinder engine of 1,100 bhp. This drove an EE generator, which powered the four traction motors. The Class 23 was nicknamed "Baby Deltic" because of its similarity to the Class 55.
British Rail Class 24
The British Rail Class 24 diesel locomotives, originally known as the British Railways Type 2, were built from 1958 to 1961. One hundred and fifty-one of these locomotives were built at Derby, Crewe and Darlington. The first twenty locomotives were part of the 1955 British Rail modernisation plan. This class was used as the basis for the more powerful Class 25 locomotives.
The final survivor, no. 24081, was withdrawn from Crewe depot in 1980.
British Rail Class 25