Look out for some amazing new models in the Sea-doo Challenger range during 2012.
BRP has unveiled two new Sea-doo 210 Challenger boat models alongside a modernised 150 Speedster.
BRP says the Sea-doo Challenger models really deliver Stephen Strasburg Jersey , offering even more versatility, more performance and more standard features, ensuring buyers enjoy superior value, greater piece-of-mind and a truly safe boating experience.
Sea-doo Challengers are equipped with direct drive jet propulsion which provides several benefits over traditional stern drives Shawn Kelley Jersey , including direct power for maximum responsiveness, less draft for shallow water operation and faster time to plane.
The Sea-doo Challenger family includes models designed to please every boating family looking for a fun-filled day on the water.
The new 210 Sea-doo Challenger and the See-doo Challenger S models now come with a single Rotax 4-Tec 1.51 power package in addition to the 210 Challenger S twin engine version.
It now features an iTC system which includes functions such as ski mode, Eco mode, cruise control and docking mode.
So Ryan Zimmerman Jersey , next time you're looking for a new boat to impress and perform at the very highest level then it may be worth a look at these exciting new additions to the Sea-doo Challenger range.
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A common material used by fan manufacturers in achieving spark resistance is aluminum. The AMCA standard provides a warning that aluminum rubbing on rusty steel will create sparks. It is the end user’s responsibility to ensure that steel surfaces are suitably coated, and that fans are kept clean from iron oxides. The AMCA standard allows fans to be constructed of any material which has “demonstrated ability to be spark resistant.” Metals containing less than 5% iron are allowed. Although aluminum is the most common construction material, copper, brass Michael Taylor Jersey , Monel, and other metals are used where corrosion and temperature limit the suitability of aluminum. NOTE: Stainless steel does NOT comply.
Non-metallics are often avoided as a construction material for the fan impeller due to the potential for buildup of static electricity. Some fan wheels are constructed of fiber reinforced plastic (FRP) which has an electrically conductive surface coat. This coating should be electrically grounded to the shaft.
Fans are often used to handle a variety of gases, dusts and materials other than clean air. Some of these gases and solid particles are combustible. When mixed at certain concentrations, ignition can result in an explosion. Even systems which are normally “safe” can become explosive under abnormal conditions. System designers must consider the safety hazard that each component of the system carries. This discussion presents some considerations that must be given to the fan.
Almost any fan could serve in explosive environments under normal operation. The temperatures encountered are low enough that few (if any) materials will ignite. However Max Scherzer Jersey , fans have been involved with causing explosions since the fan operating integrity varies over its life. In order to reduce the risk of explosion, fan construction is modified.
A widely used standard for specifying these modifications is the Air Movement and Control Association’s (AMCA) Standard 99-0401, “Classification for Spark Resistant Construction.” This standard has the following characteristics:
1) It identifies who is responsible for what.
2) It allows for three different levels of construction: Type A, B Matt Wieters Jersey , and C.
3) It is general in nature to allow different fan manufacturers to comply using alternative methods.
4) It provides disclaimers and warnings to users concerning residual risks.
5) It does not require qualification testing.
While not explicitly stated, AMCA 99-0401 is limited to applications for which the explosive materials are present in a sealed ducted airstream, but not present on the outside of the fan housing. For all classes of spark resistance, bearings and electrical devices (motors Joe Blanton Jersey , sensors, etc.) are not allowed in the direct airstream. From the lowest level of protection to the highest, the classifications of spark resistant construction are:
Type C: The fan is designed so that if the impeller or shaft comes loose and shifts during operation, two ferrous parts will not come into contact.
Type B: In general Jayson Werth Jersey , this requires a nonferrous impeller and a nonferrous rubbing ring around the shaft hole. Also, extra locking systems are required to prevent the fan impeller, shaft, and bearings from shifting.
Type A: This requires a nonferrous airstream. Also Gio Gonzalez Jersey , the extra locking systems are required as in Type B.
All spark resistant types require the fan to be electrically grounded so as to prevent static electricity from building up. The end user is responsible for installing the ground strap.
The AMCA standard is widely used in the United States, and is referenced by other standards. An equipment specifier need only state “AMCA Spark Resistant Type B” to convey a multitude of fan design requirements. The standard is effective in that the risks of fan-induced explosion can be dramatically reduced without excessive cost additio. Hockey Jerseys Cheap Cheap Mets Jerseys Cheap Mariners Jerseys Cheap Brewers Jerseys Cheap Toronto Blue Jays Jerseys Cheap Oakland Athletics Jerseys Cheap Minnesota Timberwolves Jerseys Cheap Houston Rockets Jerseys Wholesale Detroit Pistons Jerseys Wholesale Indiana Pacers Jerseys
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