When they couldn't find a likely single-seat homebuilt that would work as an inexpensive but reliable commuter airplane, two builders who are well versed in metal aircraft construction took it upon themselves to design and build one;
Having problems drilling a precise hole in a tube? Ishmael Fuentes has the perfect-and inexpensive-solution with this nifty, easy-to-make V-block drill jig.
Its important to understand the fundamentals before you can be conversant in electrical theory, so lets revisit Georg Simon Ohm and James Watt to see how their laws factor in to aircraft applications.