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.
By 'face', the mean the sides of the dunes. All sand dunes have what is called a windward side (facing the wind or facing upwind) and an opposite leeward side (facing downwind). The sand blown on the windward side blows along the top until it gets deposited on the crest of the dune.