Figure 1-11 Main landing gear. conventional type.
The tricycle gear is more stable during ground operations and makes landing easier, especially in crosswinds. It also maintains the fuselage in a level position that increases the pilot’s visibility. Nearly all Navy aircraft are equipped with tricycle landing gear.
A main landing gear assembly is shown in figure 1-11. The major components of the assembly are the shock strut, tire, tube, wheel, brake assembly, retracting and extending mechanism, and side struts and supports. The shock strut absorbs the shock that otherwise would be sustained by the airframe structure during takeoff, taxiing, and landing. The air-oil shock strut is used on all Navy aircraft. This type of strut is composed essentially of two telescoping cylinders filled with hydraulic fluid and compressed air or nitrogen.
U.S. Air Force photo by Master Sgt. Keith Brown
ELMENDORF AIR FORCE BASE, Alaska – Members of the 703rd Aircraft Maintenance Squadron de-ice a C-17 Globemaster III from the 517th Airlift Squadron before a training mission. Heavy snow and weeks of sub-zero temperatures require extra effort from maintenance crews to keep the aircraft clear of ice and snow. The training mission included dropping Army Airborne Soldiers from Fort Richardson, Alaska, and conducting air drops of training bundles that simulate the Soldier’s equipment. (from AIR FORCE LINK)
Dew does not actually fall; rather the moisture condenses from air that is in direct contact with the cool surface. During clear, still nights, vegetation often cools by radiation to a temperature at or below the dew point of the adjacent air. Moisture then collects on the leaves just as it does on a pitcher of ice water in a warm room. Heavy dew is often observed on grass and plants when there is none on the pavements or on large, solid objects. These objects absorb so much heat during the day or give up heat so slowly, they may not cool below the dew point of the surrounding air during the night. Another type of dew is white dew. White dew is a deposit of white, frozen dew drops. It first forms as liquid dew, then freezes.
Frost, or hoarfrost, is formed by the process of sublimation. It is a deposit of ice having a crystalline appearance and generally assumes the form of scales, needles, feathers, or fans. Hoarfrost is the solid equivalent of dew and should not be confused with white dew, which is dew frozen after it forms.
An F-35 Joint Strike Fighter, marked AA-1, lands Oct. 23 at Edwards Air Force Base, Calif. The F-35 Integrated Test Force staff concluded an air-start test. (U.S. Air Force photo / Senior Airman Julius Delos Reyes)
(AIR FORCE LINK) by Senior Airman Julius Delos Reyes
95th Air Base Wing Public Affairs
10/24/2008 – EDWARDS AIR FORCE BASE, Calif. (AFNS) — The prototype F-35 Joint Strike Fighter AA-1 completed an air-start test validating the aircraft’s ability to shut down and restart its engine in flight Oct. 23 here. This ensures the aircraft, which is called the F-35 Lightning II for the Air Force, can regain power and fly safely in the event of an unanticipated engine flameout.