Quote Originally Posted by WLIU View Post
The regulation for flight reviews does not specify that it must be done in any particular category or class of flying machine. 14 CFR 61.56 says "A review of those maneuvers and procedures that, at the discretion of the person giving the review, are necessary for the pilot to demonstrate the safe exercise of the privileges of the pilot certificate."
I think it goes on to say:

no person may act as pilot in command of an aircraft unless, since the beginning of the 24th calendar month before the month in which that pilot acts as pilot in command, that person has—

(1) Accomplished a flight review given in an aircraft for which that pilot is rated