This is the crane that glides like a paper airplane. It is the most difficult of the three since the squash fold is not a straight...asymmetrical?...one. If it doesn't work for you then just ask me and I'll see where your problem is.
I didn't understand exactly how to fold in steps 6 and 7, so I had to do the petal fold without the creases, but it came out ok. My paper was a bit too small for it to really fly, but it still can be thrown much better than the others. Great tutorial!
This is the hardest of the three due to the off-center squash folding and petal folding! I'm surprised you would star twith this one. You may be better off with the other two until you really get the hang of folding them. On the other hand, I've been known to jump up the skill levels unwisely and ending up with bad models too, so who am I to offer advice? Just keep on folding and everything will work out fine!