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Thick smoke surrounding the routers was found not to be an issue, nor was hose-line operations. "With the frequency range this thing is using, you get some signal degradation like you would see from satellites during heavy rain, but that was not a factor in the testing we did," Godfrey says. "That was one of the things we looked at, seeing if this thing worked with multiple hose streams."Potential pitfallsWhile officials are encouraged by early results, a number of issues were exposed. For example, steel buildings were found to distort or inhibit signal clarity. High-rise buildings are another question. The system, which currently operates on a two-dimensional X - Y axis only - there is no Z or elevation axis - has yet to be tested in high-rise fire environments, although communications engineers are now looking at the feasibility of such operations.

"That''s the approach we''re taking to the industrial markets, as we did with aerospace, of providing solutions to both heat and acoustical problems with engine-powered equipment," he said. Thermal Structures offers a range of custom-designed metal foil and fabric insulation systems, nonmetallic fire shields, silicone seals, composite insulation systems and metal heat shields.Applications include external thermal blankets, internal engine insulation, ducting insulation, exhaust system insulation and turbocharger covers. Where Thermal Structures differs somewhat is that it also supplies firewall insulation and is very active in noise reduction, with sound suppression products such as insulated ducting systems, interior noise reduction components and wall and ceiling panels. Thus, Buckett said, the company is in the somewhat unique position of being able to address noise or heat concerns.

Targeting increased productivity within the consumer lawn and garden market, Kohler has expanded the range of its single-cylinder vertical shaft engines with the Command 16 and 17. "The increased displacements result from Kohler designing these engines with a longer stroke than our previous models," said Paul Blum, product manager. "This means that users will benefit from a distinct power and torque advantage across all speed ranges when operating their lawn and garden equipment?A Kohler exclusive for an engine this compact, according to the company, are hydraulic valve lifters, which provide consistent power throughout the life of the engine. The hydraulic valve lifters are designed to stay in constant contact with the pushrods regardless of thermal expansion or component wear, thus eliminating the "ticking" sound caused by improper valve clearances.