ER stands for Extended Range These aircraft types that is identified by 'ER' are aircraft models that is enhanced for better efficiency at long range flights than its counterpart aircraft of the same model. Source(s): Aerospace Engineer - Aviation Enthusiast
The Windward Islands and the Leeward Islands are part of the Lesser Antilles of the Caribbean Sea. The Windward Islands are southeastern islands of the Caribbean. Theyâre called the Windward Islands because theyâre exposed to the wind (âwindwardâ) of the northeast trade winds (northeasterlies). Martinique.
The Leeward Antilles is a chain of islands in the southern Caribbean Sea off the coast of Venezuela. They include Aruba, Curacao, Bonaire, Isla la Tortuga and Isla la Margarita.he Windward and Leeward Islands are positioned on the eastern edge of the Caribbean Plate. This is an area of modern and historic volcanism. The islands are mainly volcanic with some coral contributions. They have a rich volcanic soil that supports a small agricultural economy.