Why am I looking at stepper motors?
Well with pretty much all planes we alter the shape of the airfoils to move the centre of lift (COL) relative to the centre of gravity (COG). In this I hope to do the reverse and change the COG relative to the COL. Much like a hang glider or windsurfer does. Thus we can try many more wing types more quickly as we won’t have to deal with making flaps, inserting control horns, mounting servos etc.
Let’s see how we go.
I bought this stepper and hardware driver off Ebay for about $AUD4-.
Chip marking
17DNSWF
ULN2003A
which appears to be a regular Darlington array. This is the data sheet link
