"Raisin" refers to a dried grape, commonly known for its use in culinary applications worldwide. The process of creating raisins involves drying grapes, either in the sun or through dehydrators, which concentrates their sugars and flavors, resulting in a sweet and nutritious snack. Raisins come in various types depending on the grape used, including Sultana, Thompson Seedless, and Black Corinth, each with its unique taste and texture. They are a rich source of energy, vitamins, minerals, and fiber. Raisins are versatile in cooking and baking, contributing to the flavor profiles of cakes, cookies, and bread, as well as savory dishes. They also serve as a healthy snacking option. Despite their benefits, moderation is key due to their high sugar content.

The coating for fabric-covered wings, primarily found in vintage and light aircraft, serves both protective and aerodynamic functions. Composed of materials like nitrate dope, butyrate dope, or modern polyurethane and polyester resins, these coatings are applied over the fabric to tighten it and create a smooth, durable surface. Initially, the fabric (often cotton or linen in the past, and synthetic materials like Dacron in modern times) is stretched over the wing frame. Subsequent layers of the coating material are then applied, each layer adding to the wing's strength, flexibility, and resistance to weathering and UV light. Advanced coatings also enhance performance by minimizing drag and protecting the structural integrity of the wing against the elements. Maintaining the correct application and upkeep of these coatings is crucial for the safety and longevity of fabric-covered aircraft.