PA-18
PA18 may refer to: * Pennsylvania Route 18 * Pennsylvania's 18th congressional district * Pitcairn PA-18, an autogyro produced in 1932 * Piper PA-18 The Piper PA-18 Super Cub is a two-seat, single-engine monoplane. Introduced in 1949 by Piper Aircraft, it was developed from the PA-11 Cub Special, and traces its lineage back through the J-3 Cub to the Taylor E-2 Cub of the 1930s. In close ...

Pitcairn PA-18
The Pitcairn PA-18 was an autogyro produced in the United States in the early 1930s.Taylor 1989, p.735 History In 1931, Pitcairn had produced a lightweight autogyro suitable for the private pilots as the PAA-1.''The Illustrated Encyclopedia of Aircraft'', p.2739 Experience with this and with other light, low-powered machines convinced Pitcairn that while the concept was good, they presented significant handling problems to inexperienced pilots. The PA-18 was designed as a machine for the same market, but with a more powerful engine and structural strengthening. The availability of more power contributed greatly to the aircraft's responsiveness at low speeds. According to Frank Kingston Smith Sr. wrote, "Pitcairn's assessment of the market had been correct: within a year and a half more than nineteen PA-18s were produced and sold, vindicating his decision to proceed with the basic machine while experimenting with the direct-control system." In 2008, a PA-18 was restored to fl ...
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Pennsylvania Route 18
Pennsylvania Route 18 (PA 18) is a major north–south highway in Western Pennsylvania whose southern terminus is at West Virginia Route 69 (WV 69) at the state line in Greene County near the village of Garrison, while the northern terminus is at PA 5 in Lake City. At a length of , PA 18 is the only state route in Pennsylvania — north–south ''or'' east–west — to traverse the entire state. It also has the distinction of being the longest state route in Pennsylvania. Route description Greene County Traveling northward from West Virginia Route 69 at the West Virginia state line, Route 18 winds through rural Greene County, passing through the villages of Garrison, New Freeport, Nettle Hill, White Cottage, Woodruff, and Holbrook, before making its first junction with another state highway, PA Route 21, just west of the village of Rogersville and over from the state line. Here the two routes overlap for nearly , winding east-northeast through Rogersville ...
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Pennsylvania's 18th Congressional District
Pennsylvania's 18th congressional district was a district including the city of Pittsburgh and parts of surrounding suburbs. A variety of working class and majority black suburbs located to the east of the city were included, such as McKeesport and Wilkinsburg. Also a major part of the district was a number of middle class suburbs that have historic Democratic roots, such as Pleasant Hills and Penn Hills. The district became obsolete following the 2020 United States census. It was largely replaced by Pennsylvania's 12th congressional district. The district covered much of the area that was the center of the Whiskey Rebellion of the 1790s. History Pre-2018 boundaries In February 2018, the Supreme Court of Pennsylvania ruled that the district map violated the state constitution due to gerrymandering and redrew all of the state's congressional districts. The 18th and 14th districts swapped numbers and had their boundaries adjusted for the 2018 elections (after March's specia ...
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