The Quiet Truck
"Graham at Elite HDD could not emphasise enough how impressed he was with the new truck, and specifically the new blower" explains Erik. "He specifically brought up how quiet the blower was, but also said that the flow was impressive." At full operating speed, the truck with the competitor’s blower measured 98 dBa, while the truck with the Howden Roots 827 DVJ blower came in at an impressive 91–92 dBa. That is a massive 6–7 dBa lower. Both trucks were placed nose to nose, with the noise measured using the SkyPaw Decibel 10th app on an iPhone 5S. The device was held in the exact same position on both trucks. Mechanically identical, the trucks’ blowers are the only components that have been changed. “The operators of the truck were not the only ones who have picked up the noticeable difference in noise level between the two trucks," adds Paul. "Graham told us that several of their customers, or the true end users, are now requesting that Elite HDD send the ‘Quiet Truck’." The truck in question was built, tested and sold to Elite HD at the end of April, after its manufacturer Foremost in Stettler, Alberta was asked to put a blower on one of its trucks as part of Howden Roots’ field-testing of the 827 DVJ blower.