Model Airplane News has a nice video: http://videos.radiocontrolzone.com/d...whammy_mwh.zip

Once you hear a pulsejet you will never be the same (hearing loss is irriversible ). I think that they are way cool (pun?) and while not for everyone (don't fly it in your neighborhood park) are very novel.

If I ever get the chance I'll build one just to scare off people