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A baby gate or stair gate is a protective barrier designed to prevent babies and toddlers from accessing areas of a home that may not be safe for them, such as stairways and kitchens. [2] Baby gates are typically constructed of metal, plastic and/or wood, and can be expanded to fit in a range of doorway widths.
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.
The PBM-5A was an amphibian with retractable landing gear. The engines were 2,100 hp (1,600 kW) Pratt & Whitney R-2800 -34. After a series of crashes, the Dutch withdrew their remaining aircraft from use in December 1959.
That type of bridge is not hinged, and remains horizontal when it is rolled inside the gates of a fort. Modern versions are called retractable bridges or thrust bridges. One particular version of the rolling bridge type was known as the Guthrie rolling bridge, examples of which may still be seen at Fort Nelson, Portsmouth.
Internal mechanism of a rotary combination lock with a retractable bolt. An externally-accessible dial is manipulated to release the shackle of a padlock or a lock bolt securing a door. The dial is connected to an internal mechanism, usually containing three separate wheels with notches, called gates.
Qatar Airways’ Qsuites are technically business class, but they might as well be first. Passengers can choose from a single, twin, double, or quad suite, depending on how many people they’re ...