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
Actually Dusty.... The leeward side extends all the way to Koko Head (encompasssing Pearl Harbor, Honolulu to Hawaii Kai). By definition. Windward is the side of an island where the predominant wind travels from the sea onto the island. Leeward is the side of an island where the predominant wind travels from the interior of the island to the sea. In practice on Oahu.
You may hear the words leeward and windward to describe areas of the island, but not know what that means. In a nutshell, they essential describe how much rain an area gets and how tropical or arid an area is.The trade winds blow from the northeast of the Hawaiian islands to the southwest.hen the clouds produce rain on the windward side. The leeward side is the drier side or the side where the trade winds pass after they hit a mountain. The windward side is the wetter side. The way I try to remember it is this way â the winds hang out and produce rain on the windward side.