V12

V12 or V-12 may refer to:

Technology

Military

V12 engine

A V12 engine is a V engine with 12 cylinders mounted on the crankcase in two banks of six cylinders each, usually but not always at a 60° angle to each other, with all 12 pistons driving a common crankshaft. Since each cylinder bank is essentially a straight-six which is by itself in both primary and secondary balance, a V12 is automatically in primary and secondary balance no matter which V angle is used, and therefore it needs no balance shafts. A four-stroke 12 cylinder engine has an even firing order if cylinders fire every 60° of crankshaft rotation, so a V12 with cylinder banks at a multiples of 60° (60°, 120°, or 180°) will have even firing intervals without using split crankpins. By using split crankpins or ignoring minor vibrations, any V angle is possible. The 180° configuration is usually referred to as a "flat-twelve engine" or a "boxer" although it is in reality a 180° V since the pistons can and normally do use shared crankpins.

Applications

Limited

Limited may refer to:

Alton Limited

The Alton Limited (later known as simply the Limited) was the Chicago & Alton Railway's (C&A) flagship service between Chicago, Illinois and St. Louis, Missouri. It was introduced in 1899, and reequipped in 1905, and in 1924. The name and service was ultimately discontinued in late 1971.

History

Starting in 1903, its motive power was a series of 4-6-2 (Pacific) steam locomotives.

By 1905, it provided regular, daily service with six new cars strikingly decorated in three shades of maroon, with gold stenciling, which led to the nickname, "The Red Train." The six-car consist included a RPO car, a combine car, a coach, a diner, and two Pullman parlor cars, one of which was the observation car. The cars were richly appointed, and the Alton Limited was advertised as "The Only Way" and as "The Most Beautiful Train In America!"

The last ten Brooks/ALCO class P-5 Pacific engines were delivered to the C&A in 1913. Two six-car train sets were re-equipped in 1924 at a cost of a million dollars. The "Chicago" observation parlor car included a Japanese tea room and a library, and was 90' long. With its blended red color scheme, it was then billed, "The Handsomest Train In The World."

Forty Thieves (card game)

Forty Thieves is a patience card game. It is quite difficult to win, and relies mostly on luck. It is also known as Napoleon at Saint Helena, Roosevelt at San Juan, Big Forty and Le Cadran.

Rules

Variations

Forty Thieves forms the basis for several variant games, most of which have been made easier to win. Common variations are dealing the aces to the foundations at the start of the game, having the tableaus build down by alternating colour rather than by suit, and allowing cards built down on top of a tableau to be moved together. Other variations include allowing use of any card from the waste, dealing some of the tableau cards face down, and changing the number of tableau piles and/or the number of cards in each tableau. The number of possible permutations is vast, and solitaire suites often include several flavours. Here are some of these variants: