This is an aircraft designed for exploring Sergeaa I made a few weeks ago and decided to post it as the propellers I spent hours getting to work properly are now obsolete. It has infinite fuel with the solar panels, which are remarkably efficient this close to the sun. It carries a small rover that can be undocked and explore in places the plane can't reach. To take off vertically, activate AG 3 and deactivate it at the same time as you set the throttle to 100%. Its tinker free status is in a gray area, as I used overload to turn night vision off in the docking port cameras and to set the piston's extension distance to 41%. It is tinker free in my opinion, however, because I did not break the laws of physics in any way and simply fine-tuned the settings.