Air frame parachutes are great at high altitude but under ~500ft (where you're going to have the highest load on your electrical system during landing/takeoff)

Air frame parachutes are great at high altitude but under ~500ft (where you're going to have the highest load on your electrical system during landing/takeoff) they do absolutely nothing. As far as the flaps, they are not sufficient for controlled flight. Increasing the angle of one of them increases both lift and drag on that wing so you have at best a dutch roll/adverse yaw and at worst a flat spin.