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In chemistry, a delta bond (δ bond) is a covalent chemical bond, in which four lobes of an atomic orbital on one atom overlap four lobes of an atomic orbital on another atom. This overlap leads to the formation of a bonding molecular orbital with two nodal planes which contain the internuclear axis and go through both atoms.
Dyke Delta JD-2 in flight at EAA AirVenture Oshkosh in 2011, with landing gear retracted. The aircraft is metal framed with skin of laminated fiberglass or covering of Dacron fabric. Its landing gear is retractable. The delta configuration offers a relatively high cruise speed compared to conventional aircraft of the same weight and power.
The Convair F-102 Delta Dagger [N 2] is an interceptor aircraft designed and produced by the American aircraft manufacturer Convair. A member of the Century Series , the F-102 was the first operational supersonic interceptor and delta-wing fighter operated by the United States Air Force (USAF).
As of October 2018, only the Delta IV remains in production. Single-stick versions of Delta IV was retired by United Launch Alliance (ULA) in 2019 and replaced by the ULA Atlas V, leaving the Delta IV Heavy the only remaining operational member of the Delta family, flying US national security missions.
The Dassault Mirage 2000 is a French multirole, single-engine, delta wing, fourth-generation jet fighter manufactured by Dassault Aviation.It was designed in the late 1970s as a lightweight fighter to replace the Mirage III for the French Air Force (Armée de l'air).
The Yukon–Kuskokwim Delta is a river delta located where the Yukon and Kuskokwim rivers empty into the Bering Sea on the west coast of the U.S. state of Alaska. At approximately 129,500 square kilometers (50,000 sq mi) in size, [ 1 ] it is one of the largest deltas in the world.
This followed the retirement of Delta II in 2018 and single-stick (non-Heavy) variants of the Delta IV in 2019. With the start of 2024, Vulcan Centaur took its first flight in time to maintain continuity of ULA's service in the heavy-lift launch vehicle market before the Delta IV Heavy program came to an end three months later on April 9, 2024.
Eloise Randolph Page (February 19, 1920 [1] – October 16, 2002) was an American Central Intelligence Agency (CIA) officer. She was the first female officer in several agency roles. She was the first female officer in several agency roles.