Free Essays on Modern Military War Aircrafts

Military aircraft has become more sophisticated in variety, effectiveness in war situations, and special maneuvering techniques in recent years. With the advance of stealth technology, many new and very effective aircraft have been developed. The F-117A was used during Operation Dessert Storm and every plane came back without a scratch. The very expensive B-2 stealth bomber has never been used in actual war, but during testing it was a success. The Advanced Tactical Fighter program was started to make an aircraft that could supercruise, the ability to cruise at supersonic speeds, and didn't cost very much. The YF-22 and YF-23 were the first planes to accomplish this. With all the planes we know of, there are also top secret programs probably going on right now. A new fighter that has never been heard of before has been spotted. As John Welch, the assistant secretary of Air Force said, Stealth gives us back that fundamental element of war called surprise (Goodall 9). After it was foun d that aircraft could be very useful in war, it was used for large scale reconnaissance. Then people started to add bombs to aircraft and then airplanes started to become an essence of war. After World War 2, new bombers were developed with fast speed, and could travel far distances. They could also carry nuclear bombs and missiles. The use of the bomber aircraft then led to the fighter, which was equipped with guns and missiles. Helicopters were also found to be good strike aircraft. They were armed with cannons, machine guns, rockets, torpedoes, and a variety of missiles. Vertical takeoff made the helicopter an advantage. The first flight of the F-117A was in June of 1981 in Groom Lake test facility. The total cost for the development of the F-117A was just under two billion dollars, but it only cost $43 million to make each plane. It became operational in October of 1983 and was the first operational stealth aircraft ever built. The F-117A is a night atta... Free Essays on Modern Military War Aircrafts Free Essays on Modern Military War Aircrafts Military aircraft has become more sophisticated in variety, effectiveness in war situations, and special maneuvering techniques in recent years. With the advance of stealth technology, many new and very effective aircraft have been developed. The F-117A was used during Operation Dessert Storm and every plane came back without a scratch. The very expensive B-2 stealth bomber has never been used in actual war, but during testing it was a success. The Advanced Tactical Fighter program was started to make an aircraft that could supercruise, the ability to cruise at supersonic speeds, and didn't cost very much. The YF-22 and YF-23 were the first planes to accomplish this. With all the planes we know of, there are also top secret programs probably going on right now. A new fighter that has never been heard of before has been spotted. As John Welch, the assistant secretary of Air Force said, Stealth gives us back that fundamental element of war called surprise (Goodall 9). After it was foun d that aircraft could be very useful in war, it was used for large scale reconnaissance. Then people started to add bombs to aircraft and then airplanes started to become an essence of war. After World War 2, new bombers were developed with fast speed, and could travel far distances. They could also carry nuclear bombs and missiles. The use of the bomber aircraft then led to the fighter, which was equipped with guns and missiles. Helicopters were also found to be good strike aircraft. They were armed with cannons, machine guns, rockets, torpedoes, and a variety of missiles. Vertical takeoff made the helicopter an advantage. The first flight of the F-117A was in June of 1981 in Groom Lake test facility. The total cost for the development of the F-117A was just under two billion dollars, but it only cost $43 million to make each plane. It became operational in October of 1983 and was the first operational stealth aircraft ever built. The F-117A is a night atta...

How to Collect and Prepare a Hickory Nut for Planting

How to Collect and Prepare a Hickory Nut for Planting Of the dozen or so American hickories, shellbark and shagbark hickory trees have shown some promise as edible nut producers. These are the only two Carya species (with the exception of pecan, scientific name  Carya  illinoensis) typically planted for nut production. All the following hickory nut suggestions apply as well to the collection and preparation of pecans. Timing Hickory flowers in the spring and completes nut maturity in early fall. Beginning as early as the first of September and continuing through November, various species of hickory nuts ripen and are ready for collection. Ripening dates can vary slightly from year to year and from state to state by as many as three to four weeks, so it is not possible to use precise dates to determine maturity. The best time to collect hickory nuts, either off the tree or from the ground, is when they begin falling: It is just that simple. Prime picking is late September through the first week in November, depending on the individual hickory tree species and its location within the United States. The hickory nut is perfect when the husks begin to split. Collecting The height of the hickory nut crop in a forest canopy and the thick forest litter below can make it somewhat difficult for the casual collector to gather large numbers of nuts (although not impossible). Another challenge is harvesting nuts before wildlife does. It is also important to remember that nut availability is never an annual given. Good hickory crops (called mast) of all species are produced at intervals of one to three years, so finding nuts can be a challenge in any given fall season. With that in mind, find forest trees that are open-grown with little forest underbrush. Yard trees or trees near paved areas make for easier collection in urban and suburban areas. Always identify the tree and place tags or mark the bags, so you will know what species you have collected. Storing Storage tests with pecan and shagbark hickory have demonstrated that hickories are like most other nut and acorn species: They should be dried to a low moisture content and refrigerated if not planted immediately. To be specific, Carya nuts should be dried to below ten percent moisture and stored at around 40 degrees Fahrenheit. If stored in sealed containers, the nuts should be able to retain good viability for two years. They will lose half to two-thirds of their ability to germinate after four years. Although hickory needs very little cold over a full season, studies show that viability can be improved by soaking the nuts in water at 70 degrees Fahrenheit for 64 hours. Some nut species need stratification  or a cold period of time to fully improve the germination process. Put damp peat mix or sawdust together with the dried hickory nuts in a polyethylene plastic bag that has a wall thickness of four to ten millimeters. These bags are ideal for storing nuts since they are permeable to carbon dioxide and oxygen but impermeable to moisture. Close the bag loosely and store in the refrigerator at 40 degrees Fahrenheit until planting time. Check nuts throughout the winter and keep just barely damp. Planting You can plant unrefrigerated nuts in the fall and let the winter season do what nature does- refrigerate. You can also spring-plant with stratified or cold-treated seed or take a chance on unstratified seed. For ground planting: Great results have been reported with fall seed sowing for hickory, but good mulching is necessary. Mulch should remain until germination is complete. Shading is generally not necessary, but hickory may profit from some  initial shade. Protection from rodents may be required for fall-sowings. For container planting: After determining the proper time to plant, you should place nuts in moderately  loose potting soil in one-gallon pots or deeper containers. The taproot will grow quickly to the bottom of containers and root width is not as important. Containers should have holes in the bottom to allow for drainage. Place hickory nuts on their sides at a depth of one-half the width to about the width of the nut. Keep the soil moist but not wet. Keep the pots from freezing.