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Stainless steel and tungsten dive weights for example are currently only obtainable by milling down a solid metal stock material in block or cylinder form, into the required shape. Direct casting of some of these materials in a foundry is possible, but would require high volume production for the casting processes to be cost effective.
Innovations for backplate and wing include redundant bladders, stainless steel backplates, lightweight soft nylon backplates, and 85 lb lift bladders. Some of these have improved safety or convenience. Dive Rite marketed the first commercially manufactured backplates in 1984, [12] and a wing for diving twin cylinders in 1985.
A typical requirement for indoor facilities is that they must provide 5 metres (16 ft) clearance above the highest diving board or platform, so that divers do not hit a ceiling structure. [ 1 ] The competitive sport of diving has included the 10-meter dive as an Olympic event since the 1904 Summer Olympics .
The RDP was developed by DSAT and was the first dive table developed exclusively for no-stop recreational diving. [2] There are four types of RDPs: the original table version first introduced in 1988 along with a circular slide rule version called The Wheel, followed by the eRDP, an electronic version introduced in 2005 and the eRDPML, an ...
Gorski is a brand of lightweight demand diving helmet with a stainless steel shell, owned by Aqua Lung. [60] [61] In 2004, Leszek Górski's G2000SS diving helmet went into production, and in 2011, Gorski’s company was bought out by Aqua Lung. The G3000 helmet uses a high-performance Apeks GX300 regulator. [62]
The primary advantage of wheel studs over wheel bolts is greater ease for tire changes by creating the ability to lift both the wheel and tire onto the studs creating the ability to hold and locate the assembly during tire changes rather than trying to hold up the wheel and tire while lining up the holes to insert a bolt. Many wheels that use ...