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  2. Straight-twin engine - Wikipedia

    en.wikipedia.org/wiki/Straight-twin_engine

    A 180 degree straight-twin engine has a secondary imbalance (similar to an inline-four engine); however, the lower reciprocating mass means that this often does not require treatment. A 180° crankshaft engine suffers fewer pumping losses than a 360° twin, because displacement of the crankcase is relatively unchanged as the pistons move.

  3. Flat engine - Wikipedia

    en.wikipedia.org/wiki/Flat_engine

    In 1902, the Pearse monoplane (which would later become one of the first aircraft to achieve flight) was powered by a flat-twin engine. Amongst the first commercially-produced aircraft to use a flat engine was the 1909 Santos-Dumont Demoiselle range of aeroplanes, which was powered by boxer-twin engines. [citation needed]

  4. Big-bang firing order - Wikipedia

    en.wikipedia.org/wiki/Big-bang_firing_order

    As with many even-firing engines with four or more cylinders, an even-firing four-cylinder engine is sometimes referred to as a "Screamer". A "long bang" inline 4 engine fires both pairs of cylinders in quick succession or simultaneously; the power delivery is identical to a parallel twin with a 180° crank and similar to a V-twin.

  5. Engine configuration - Wikipedia

    en.wikipedia.org/wiki/Engine_configuration

    Straight engines (also known as "inline engines") have all cylinders aligned in one row along the crankshaft with no offset. When a straight engine is mounted at an angle, it is sometimes called a "slant engine". Types of straight engines include: Single cylinder; Straight-2, also known as "parallel twin" Straight-3, also known as "inline-triple"

  6. Engine balance - Wikipedia

    en.wikipedia.org/wiki/Engine_balance

    A 'flat' engine may either be a 180-degree V engine or a 'boxer' engine. A 180-degree V engine as used in the Ferrari 512BB has opposed cylinder pairs whose connecting rods use the same crank throw. Contrary to this, in a 'boxer' engine, as applied in BMW motorcycles, each connecting rod has its own crank throw which is positioned 180 degrees ...

  7. MZ 1000S - Wikipedia

    en.wikipedia.org/wiki/MZ_1000S

    MZ 1000S is a 998 cc 180-degree parallel twin motorcycle produced between 2004 and 2007 released in the US in 2005 [2] by the now defunct German company MZ Motorrad.Once the flagship of the range, the 1000S was MZ's largest-ever displacement motorcycle, and their first multi-cylinder bike since 1959.

  8. Small twin-engine plane crashed on Texas highway; 4 people ...

    www.aol.com/news/small-twin-engine-plane-crashed...

    A small, twin-engine aircraft with only the pilot inside crashed near a busy highway in Texas on Wednesday, according to officials. The incident, under investigation by the Federal Aviation ...

  9. V12 engine - Wikipedia

    en.wikipedia.org/wiki/V12_engine

    Each bank of a V12 engine essentially functions as a straight-six engine, which by itself has perfect primary and secondary engine balance.A four-stroke V12 engine has even firing order at V-angles of 60, 120, or 180 degrees [1] [unreliable source] Many V12 engines use a V-angle of 60 degrees between the two banks of cylinders. [2]