Jetguy
Well Known Member
A little back ground on my setup. First flight was 2010. 2009 Rotax engine and Ducati voltage regulator. Dual Dynon D180/D100 screens, NAV and landing lights installed. My old voltage regulator lasted 758 hours at which time I was able to acquire a Silent Hektik(now known as SH) regulator from a friend who travels often to Europe. The old Ducati didn't develop much voltage at low power settings but at/above 5000 RPM it developed about 13.6 volts and at 2500 RPM it developed about 12.3 volts. Now with the SH at 5000 RPM it developes about 13.8 to 14 volts and at 2500 RPM it now developes about 13.4 volts. I installed the SH using the original installation setup as the Ducati with a few exceptions. First the 1/4-28 bolts would not work because there was not enough clearance along the side of the hole in the regulator to slide a socket over the head of the bolt. So I used a 1/4-28 socket cap screws instead. Second I went against the trend of using heat sink grease under the regulator and actually lifted it up about a 1/16 inch above the metal shelf by putting thick metal washers under the regulator bolts. I've spent a lot of flying hours in the 12 and that stanless steel firewall gets very hot. Inflight sometime try taking your shoes off and put your feet on the fire wall. Third I grounded the regulator directly from the battery as well as off the engine per Bill's suggestion. The SH is almost the exact same size as the Ducati. The holes need to be slightly enlarged for the 1/4-28 bolts but they line up perfectly with the original bolt pattern. The plug that holds the wires for the Ducati is exactly the same for the SH, simply unplug the Ducati and plug in the SH. The bottom of the SH is metal and the resin circuit board is completely in cased in the metal housing. The label on the SK says 14 volts 47A. So I'm not sure you will be able to get more amps out of the SH, maybe Joe Gores can address this. I won't be testing this because I won't be changing my avionics anytime soon. But I do think when only pulling 18 amps it won't create as much internal heat as the Ducati. The SH seems like a well built unit. Only time will tell, I'll keep everyone updated as we put hours on the unit. Here's a few pictures of the unit and install.
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