AIRFRAME
an LCD screen might not be able to power on fully if it is at 40 degrees. It might take hours of being at this “partially on” state to heat itself to normal operating temperature. It will eventually operate correctly but, until that happens, the display may be slow and/or unresponsive. If you have spinning mass gyros in your aircraft, it might take considerable time to heat up the lubrication in the gyro, which means the gyro will not erect anytime soon. This means that they are not operational and “off ” fl ags are still displayed. The aircraft is not going anywhere until the gyros are operational. While cold they will move improperly and this adds stress and wear to them. The reduction of condensation on any electrical device can increase its useful life. Preheating fl ight deck avionics, displays and gyros reduces condensation, corrosion, gyro wear and cold weather-induced avionic problems.
MRGB Conical Upper FWD Surface Increased Operational Times/Takeoff
Readiness With increased engine run-up time there comes an additional cost in fuel. If you’re idling to warm the engine, you are using fuel and time. When minutes count in your spool-up time, starting at an already-increased temperature that is consistent over the entire power train is a no brainer. You can take off faster due to not having to run up to add that heat to an aircraft that is generally built to dissipate heat from the engine and drive train. OK, Tanis has me convinced. If I operated an aircraft in
MRGB Front Lower RT
really cold environments, a preheat system certainly makes sense. Of course, the winters here in the Phoenix area are really something else. Those three days I am pretty much homebound and can’t get out to the golf course.
TR GB Bottom
About Tanis Aircraft Products In order to address the inherent problems in starting piston engines in cold weather, Peter Tanis developed and patented the fi rst multi-point engine preheat system in 1973. In 1981, he added helicopter preheat systems to the product line. He continued to operate and expand the business until his death in 2000. The company was eventually purchased in 2006 by Robert Krueger who recently added an equity partner, Doug Evink, who serves as president and CEO. Today, Tanis Aircraft Products sells an array of products for the aviation industry. Tanis continues a tradition as a leading supplier of aircraft engine preheaters worldwide. The company invests heavily in research and development. Most of the company’s components and products are FAA-PMA certifi ed. Tanis Aircraft Products are manufactured at its facility in Glenwood, MN. Its corporate offi ces are located in Eden Prairie, MN.
Battery Wrap 10
HelicopterMaintenanceMagazine.com December 2014 | January 2015
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