What type of medical certificate is required for a student pilot to solo an airplane?

For a student pilot to solo an airplane, a third-class medical certificate is required. The third-class medical certificate is the minimum standard necessary for student pilots and pilots operating under visual flight rules (VFR). This certificate assures that the pilot meets specific health and fitness criteria necessary for flying.

The medical examination for a third-class certificate evaluates the applicant's vision, hearing, and overall health to ensure that they are fit to operate an aircraft safely. While the first-class and second-class certificates are more stringent and meant for commercial and airline transport pilots, they are not necessary for student pilots who are simply training and not yet flying for compensation or hire.

The option stating that no medical certificate is needed is incorrect because having at least a third-class certificate provides an essential safety check before allowing a student pilot to operate an aircraft solo.