Showing posts from February, 2017

EMG-6 "Shop Notes" February 2017

"EMG-6 Shop Notes" is a day-to-day accounting of what's going on in the shop with the EMG-6 Electric Motor Glider.
 February 20, 2017 After we finish welding the Polini 250 motor mounts we have to protect the tubes from corrosion.

Here you can see where we have removed the self etching primer before welding. This leaves the frame susceptible to corrosion.

We have also drilled pressure relief holes. These help prevent pressure buildup inside the tubes as we weld them. If the pressure is allowed to build up it can cause the weld to blow out.

Sync Master (Bill Stone)

Bill has volunteered to be our first out of house tester for the Sync Master throttle system for the Rotax 912 engine. This blog will be updated with information every time that he comes in to the shop. We installed the Sync Master throttle system on his Just Air Super Stol which has a Rotax 912ULS 100hp engine installed.

You can see the slack in the cable at the carburetor after 49 hrs of operation. Originally there was only a small amount of slack. It is possible this was simply caused by the new cables stretching a little. He still had a full stroke from idle to full throttle so this slack was of no significance to the Sync Master's operation.  

2017 National Aviation Technician of the Year (Press Release)

General Aviation Awards Committee Press Release
Brian John Carpenter of Corning, California has been named the 2017 National Aviation Technician of the Year. Very simply, Brian has become the go-to guy when it comes to the construction and maintenance of—and education about—Light Sport Aircraft. Anytime he’s not teaching a Light Sport Repairman Workshop, you’ll probably find Brian in his hangar at the Corning Municipal Airport working on his Electric Motor Glider or creating an aviation educational YouTube video. Brian has had a passion for aviation since he was a child, building and flying RC aircraft. In junior high, he progressed to building a self-launching glider out of homemade materials and started jumping off a small hill trying to fly. In 1979 he earned his pilot’s certificate while in the Navy. After graduating from Helena Vocational Training Institute (Montana) with his A&P mechanic certification, Brian worked as a lead mechanic for Aero Union, a large aircraft operatio…

Bing 64 (CV) Carburetor Part 1 Sport Aviation / Experimenter "Technically Speaking" Article January 2017

Bing 64 (CV) Carburetor Part 1 This article will focus on the Bing 64 CV (Constant Velocity) carburetor. The basic principal of operation utilizes a vacuum operated slide  that varies the venturi size which, in turn, maintains a constant velocity of air passing through the carburetor at all engine power settings. The  advantage of  the CV carburetor is  that  it  supplies  the  engine  only  as much  fuel/air  mixture  as  the  engine  demands. For an aircraft applications, where we have large excursions in altitude, this is exactly what the doctor ordered. The Bing 64 carburetor (Figure: 1) has become, hands-down, the most popular carburetor used in the light sport industry. It is used on both the Rotax 912 as well as the 914. It is also used on the HKS 700 E, the Stratus, the Rotec Radial, and the Jabiru engines. This carburetor has a long history of great reliability, on a plethora of aircraft.