How Can I Learn To Do Those Loud High Pitch Whistles?

[emelec]

I have been trying to do those really loud whistles. like the one in ghost rider when he calls the bike or when the old guy calls his horse. i really want to learn i have been practicing and have gotten nothing. i can whistle though

 

[Last Man Standing]

Take a whistle blowing class at your local UNI - or just buy a whistle! Here is a site that gives you guidance...
http://www.osha.gov/dep/oia/whistleblower/index.html

 

[ValleyDJing]

You have to take your two index fingers, fold the tip of your tongue back and blow like the little slut you are!

 

[killbill]

lol