If you have access to a suitable flying field flying a RC pulse jet is doable. Yes it will be NOISY and the start up procedure needs learning. You definitely need at least 2 serious fire extinquishers and be prepared for a lot of naysayers in your club. I would have a fuel shut off on the throttle stick though.

FYI The late Roy Leivers flew a Avro Vulcan with 4 yes FOUR pulsejets. I saw it once and it was louuuud!