"Donald Lineback" Batteries
Donald Lineback and his latest E-Mail.
January 7, 2017
News about what to buy:
Before looking at batteries - consider the voltage current demand. Let’s compare voltage to gasoline. One gallon of gas contains 33.7kWh energy
according to EPA or 33,700Wh. How big of battery would that be? An NCM
Lithium-Ion pack would be 33.7kWh, 172 cells, 635v, 107Ah and weigh 927
pounds. If you factor in the fact that the average car only gets 23% of
that energy - the battery pack would still weigh: 213 pounds. So adding a
big current demand is not good. Nor is it a good idea to equate the
battery pack weight to 5 gallons of fuel in ultralights. ("apples to apples”)
For Sea-Kite.com the number one incentive was to build a highly efficient motor and use less energy.
It has been easy for some motor designers to make high kW demanding
motors. The problem - airplanes just couldn’t carry enough batteries.
Big motors also disqualify themselves to …
Top 10 apps for the aircraft builder
“There’s an app for that.” This overused cliché becomes more and more apropos every day. Even for the aircraft builder, we now have a virtual toolbox in our pocket that has become indispensable. We have reached the point in technology where it is now the norm for an aircraft manufacturer to publish maintenance manuals, parts manuals, and all other documentation, for that matter, in a digital format. If you’ve grown up on paper, the transition to digital can sometimes be difficult, but the rewards are well worth the effort.
#1 The PDF Reader App:(Figure: 1) The Rotax manuals, for example, consists of literally thousands of pages spanning more than a dozen different manuals. The ability to use a search function on a 500-page manual can really speed up the process of locating the information that you’re looking for. In our shop, we have a library of aircraft maintenance manuals accumulated over the last 40 years.
How to Get Started Building the EMG-6 Updated May 20, 2017
1 Follow the Project
Progress Blog (Shop Notes)
The "Shop Notes" blog follows the progress as we design, build, and fly the EMG-6. This progress blog contains most of the up-to-date information about what is happening within the company and the project.
If you do nothing else make sure that you follow the project. Subscribe to the YouTube channel. Subscribe to the website and blog to get automatic updates of the most recent information.
Link to and subscribe to the YouTube channel . The YouTube channel contains multiple videos on designing, building, and flying the EMG-6.
Remember to subscribe to the website and blog. After entering your email address you will receive a confirmation email which you must verify in order to receive email updates.
"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.
December 12, 2016
Ben, One of the new builders, came by the shop today to share a couple of new motors that he is going to be experimenting with. We will post more information about them as he shares it with us.