Search results
Results from the WOW.Com Content Network
Worm-and-gear sets are a simple and compact way to achieve a high torque, low speed gear ratio. For example, helical gears are normally limited to gear ratios of less than 10:1 while worm-and-gear sets vary from 10:1 to 500:1. [45] A disadvantage is the potential for considerable sliding action, leading to low efficiency. [46]
The F-16 has a cropped-delta wing incorporating wing-fuselage blending and forebody vortex-control strakes; a fixed-geometry, underslung air intake (with splitter plate [70]) to the single turbofan jet engine; a conventional tri-plane empennage arrangement with all-moving horizontal "stabilator" tailplanes; a pair of ventral fins beneath the ...
The C-17 gives the RAF strategic capabilities that it would not wish to lose, for example a maximum payload of 169,500 pounds (76,900 kg) compared to the A400M's 82,000 pounds (37,000 kg). [42] The C-17's capabilities allow the RAF to use it as an airborne hospital for medical evacuation missions.
The National Association for Stock Car Auto Racing (NASCAR) makes and enforces numerous rules and regulations that transcend all racing series. NASCAR issues a different rule book for each racing series; however, rule books are published exclusively for NASCAR members and are not made available to the public. [ 1 ]
Drivers race on the apron at Chicagoland Speedway (the area between the white and yellow lines). aero cover See wheel shroud. air jacks Pneumatic cylinders strategically mounted to the frame near the wheels of a racing car, which project downwards to lift the car off the ground during a pit stop to allow for quick tire changes or provide mechanics access to the underside of the car for repairs.
The Importer Security Filing (ISF) also referred to as 10+2, is a customs import requirement of the United States Customs and Border Protection (CBP) ; which requires containerized cargo information, for security purposes, to be transmitted to the agency at least 24 hours (19 CFR section 149.2(b) [1] before goods are loaded onto an ocean vessel headed to the U.S. (i.e. mother vessel, not ...
The landing gear represents 2.5 to 5% of the maximum takeoff weight (MTOW) and 1.5 to 1.75% of the aircraft cost, but 20% of the airframe direct maintenance cost. A suitably-designed wheel can support 30 t (66,000 lb), tolerate a ground speed of 300 km/h and roll a distance of 500,000 km (310,000 mi) ; it has a 20,000 hours time between overhaul and a 60,000 hours or 20 year life time.
Hughes extended the test flight well beyond the 45-minute limit decreed by the USAAF, possibly distracted by landing gear retraction problems. [57] An oil leak caused one of the contra-rotating propellers to reverse pitch, causing the aircraft to yaw sharply and lose altitude rapidly.