Hi, I just downloaded the Piasecki H21, found here-----> http://simviation.com/simviation/static.php?ID=65&page=3
But as soon as I inserted it and started to fly it, I noticed there was no sound, at least not the sound of any helicopter I've heard. When I fly it sounds like I'm flying a single engine prop plane instead of an awesome tandem rotor helicopter that is oddly bent at the midsection!
What can I do to fix this problem? :-?