Assembling the Airplane. Once we have the Wing and Power Pod ready, we go ahead and glue them together as in Fig 3.1. Then, we install the control horn on the elevator and run a control rod from the servo to the elevatorâs control horn as in Fig 3.2. We follow the same step for the rudder (Fig 3.3).
What Causes Heartburn? Heartburn typically occurs when contents from the stomach back up into the esophagus. The esophagus is a tube that carries food and fluids from the mouth into the stomach. Your esophagus connects to your stomach at a juncture known as the cardiac or lower esophageal sphincter.
Heartburn Causes. The cause of heartburn is excessive flow of gastric contents back into the esophagus. Normally, there is an occasional backflow into the esophagus with no symptoms. The acidic gastric contents, when present in large amounts, irritate the esophagus (usually the lower part) and cause the symptoms of heartburn. Symptoms of heartburn usually consist of a sensation of burning or discomfort after eating, located in the middle of the lower chest underneath the sternum (breastbone).