Monday, February 20, 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.

Tuesday, February 14, 2017

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 Carpenter A&P/IABrian 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 operation and maintenance company (now defunct) based in Chico, California. By 1985, he was the Chief Inspector, and was promoted to the Director of Maintenance by 1990.

In 1991 Brian opened his own aviation company, Rainbow Aviation Services, a full service FBO in Corning, CA, providing a variety of aviation services including: inspections, maintenance, flight instruction, test flights, and aircraft certification. The principal focus of Rainbow Aviation Services is Light Sport Aircraft. Rainbow's Light Sport Repairman Courses have been taught throughout the United States and Australia. The company is a source of LIght Sport expertise for aviation enthusiasts, flight instructors, mechanics and even FAA inspectors. Brian has mentored over 3,000 repairmen since the light sport rule was implemented in 2004, and is the only active provider of FAA-approved training for the Light Sport Repairman rating.

Brian has built 36 aircraft so far, and has become an innovative aircraft designer. His current project—the EMG-6, an electric motor glider—is a perfect example. Brian is developing a low cost, electric aircraft to meet the needs of the average person, making the aircraft affordable, and creating complete video instruction for the build. Another example of his innovative approach is that Brian has designed over one hundred 3D-printed parts for use on the EMG-6, and has written at length about optimal methods of 3D printing aircraft components.

Over the years Brian has given back to the aviation in community in myriad ways. He serves as an EAA Technical Counselor, presents workshops, forums and seminars for various aviation events, authors aviation educational articles and videos (including a monthly column in EAA Sport Aviation magazine), and serves as a volunteer technical expert for EAA’s Homebuilder’s Tips video series, just to name a few. Together with his wife Carol, Brian co-authored two books, one about ultralights and another for sport pilots.

Brian holds Commercial Pilot, CFI, Remote Pilot (drone), and A&P mechanic certificates, and a current Inspection Authorization. He is an FAA Designated Airworthiness Representative (DAR) and Designated Sport Pilot Examiner, holds a Light Sport Repairman Maintenance rating, and is a Rotax Authorized Factory Instructor. In 2006, Brian received the John Moody Award, the most prestigious award in Light Sport Aviation.

Wednesday, February 1, 2017

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. 
Figure 1 The Bing 64 CV (constant velocity) Carburetor