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  2. Fixed ladder - Wikipedia

    en.wikipedia.org/wiki/Fixed_ladder

    This means that if there is a 4" (100 mm) gutter projecting from the side of a building, a fixed ladder would have to have standoff brackets that were at least 11" (7" + 4") (280 mm) in length. Cages: Cages are optional for fixed ladders with a floor to floor elevation of less than 20' (6100 mm). They are often available for ladders with ...

  3. Height restriction laws - Wikipedia

    en.wikipedia.org/wiki/Height_restriction_laws

    Height restriction laws are laws that restrict the maximum height of structures. There are a variety of reasons for these measures. There are a variety of reasons for these measures. Some restrictions serve aesthetic values, such as blending in with other housing and not obscuring important landmarks.

  4. Kennedy Space Center Launch Complex 39 - Wikipedia

    en.wikipedia.org/wiki/Kennedy_Space_Center...

    The system included seven baskets suspended from seven slidewires that extended from the fixed service structure to a landing zone 370 meters (1,200 ft) to the west. Each basket could hold up to three people, which slid down the wire reaching up to 80 kilometers per hour (50 mph), eventually reaching a gentle stop by means of a braking system ...

  5. Clearance (civil engineering) - Wikipedia

    en.wikipedia.org/wiki/Clearance_(civil_engineering)

    In South Africa and the southern region of Africa, the minimum vertical clearance of modern bridges is 5 metres (16 ft 5 in), although the legal height limit of road vehicles is still at 4.3 metres (14 ft 1 in). [7] United Kingdoms has a standard on minimum clearance of a public highway at 16 feet 6 inches (5.03 m).

  6. Visual flight rules - Wikipedia

    en.wikipedia.org/wiki/Visual_flight_rules

    Though specific altitudes are called as noted below - there is an overreaching general requirement to maintain sufficient altitude that if a power unit fails, an emergency landing without undue hazard to persons or property on the surface can be made. This may be significantly higher than 500 feet or 1,000 feet. 500 ft rule

  7. Made it! California climbers use pioneering techniques to ...

    www.aol.com/news/made-california-climbers...

    On Monday, as they broke into the "death zone" above 26,000 feet — where most human bodies begin to fatally break down without supplemental oxygen — Ballinger posted about the conditions on ...

  8. Modern United States Navy carrier air operations - Wikipedia

    en.wikipedia.org/wiki/Modern_United_States_Navy...

    Landing gear/flaps are lowered, and landing checks are completed. When abeam (directly aligned with) the landing area on downwind, the aircraft is 180° from the ship's course and about 1.1 nautical miles (2.0 km; 1.3 mi) to 1.3 nautical miles (2.4 km; 1.5 mi) from the ship, a position known as "the 180" (because of the angled flight deck ...

  9. Cape Canaveral Launch Complex 13 - Wikipedia

    en.wikipedia.org/wiki/Cape_Canaveral_Launch...

    In 2015, the LC-13 site was leased by SpaceX and was renovated for use as Landing Zone 1 and Landing Zone 2, the company's East Coast landing location for returning Falcon 9 and Falcon Heavy launch vehicle booster stages.

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