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  2. Glider (sailplane) - Wikipedia

    en.wikipedia.org/wiki/Glider_(sailplane)

    15 m to 60 m length flat area required; can be derigged by one person and carried to the nearest road landings can be performed in ~250 m length field. Aerial retrieve may be possible but if not, specialized trailer needed to retrieve by road. Some sailplanes have engines that remove the need for an out-landing, if successfully started on time

  3. Hang gliding - Wikipedia

    en.wikipedia.org/wiki/Hang_gliding

    15 m to 60 m length flat area required; can be derigged by one person and carried to the nearest road landings can be performed in ~250 m length field. Aerial retrieve may be possible but if not, specialized trailer needed to retrieve by road. Some sailplanes have engines that remove the need for an out-landing, if successfully started on time

  4. Common area - Wikipedia

    en.wikipedia.org/wiki/Common_area

    Common area also applies to organizations such as shopping malls and strip malls, in which multiple businesses operate. [5] Oftentimes, business parks, malls, and other multi-company facilities will have a common area. This could be any one of the examples listed above or it could take form of a "break room".

  5. Chairlift - Wikipedia

    en.wikipedia.org/wiki/Chairlift

    The two-person double chair, which for many years was the workhorse of the ski industry, can move roughly 1,200 people per hour at rope speeds of up to 2.5 m/s (8.2 ft/s). [2] The four person detachable chairlift ("high-speed quad") can transport 2,400 people per hour with an average rope speed of 5 m/s (16.4 ft/s). [ 3 ]

  6. Relay race - Wikipedia

    en.wikipedia.org/wiki/Relay_race

    Relay race events have been selected as a main motif in numerous collectors' coins. One of the recent samples is the €10 Greek Relays commemorative coin, minted in 2003 to commemorate the 2004 Summer Olympics. In the obverse of the coin three modern athletes run, holding their batons while in the background three ancient athletes are shown ...

  7. Size of groups, organizations, and communities - Wikipedia

    en.wikipedia.org/wiki/Size_of_groups...

    The number of possible person-to-person links (L) increases rapidly as the size of the group (N) increases (L = (N² - N) /2). In a four-member group there are six possible pairings; add a fifth member for each of the four to relate to and you have ten pairs. The number of possible two-person links in a group of twelve is 66.

  8. Stretcher - Wikipedia

    en.wikipedia.org/wiki/Stretcher

    The person is strapped into the basket, making safe evacuation possible. The litter has raised sides and often includes a removable head/torso cover for patient protection. After the person is secured in the litter, the litter may be wheeled, carried by hand, mounted on an ATV, towed behind skis, snowmobile, or horse, lifted or lowered on high ...

  9. Confined space - Wikipedia

    en.wikipedia.org/wiki/Confined_space

    In many situations, certification of non-hazardous atmosphere by a trained or competent person is required before personnel may enter a confined space without the use of a respirator. In the United States Navy, that person is the designated shipboard gas-free engineer. In the maritime sector an NFPA Certified Marine Chemist is required to ...