No offence mate but props are for boats!!!
Sorry campdoag but I had to bite...good fishing. Offence taken!
Small peni$ syndrome was my initial thought when I read your post. Do you say that in normal conversation or only when you have the protection of the internet or the radio?
Unless you are an astronaut, the aircraft you fly must have a "prop" somewhere?
Those things under the wings, the BRT's, (or Big Round Things for you) have things inside them that perform the same function as a "prop".
Please don't insult your colleagues...we all learnt to fly and it was not in a boat.