The eclipse is expected to be visible in the UK from 9.56am to 12.14pm on Saturday, with the peak in London at around 11.03am.
The BYA-1's powertrain has 90% fewer moving parts. The aircraft will have a range of 800 nautical miles (nm).
A full planning application for a solar farm at Lains Farm, Cholderton Road, Quarley, was green-lit by the Northern Area Planning Committee.