In the U.S., is it legal for the holder(s) of a Student Pilot Certificate, properly endorsed for single engine airplane solo flight privileges (in accordance with the training/proficiency requirements specified in FAR 61.87 (d) (1-15), and having received no specific training in formation flying by the CFI), to (while soloing), participate in a formation flight (assuming a specific limitation against formation flying is not included in the Student's logbook by his/her CFI)?
Can the holder(s) of a Student Pilot Certificate, properly endorsed for solo flight privileges, participate in a Formation Flight?
$\begingroup$ Comments are not for extended discussion; this conversation has been moved to chat. $\endgroup$– Jamiec ♦Jan 28, 2022 at 8:46
Under §91.111 (a)-(c), this arrangement is permissible both on solo and dual flights by a student pilot, provided both PICs make the required arrangements to do so and neither PIC carries passengers for hire during a formation flight.
Now the instructor endorsement for solo privileges in your logbook presents a problem. If it states you do not have formation flight privileges during solo flight operations, you are prohibited from conducting formation flying when serving as pilot and command (solo) as a student.