I got everything from Steve Belknap at Flydma.com. The motor was a pre-production unit, but I believe they have it available right now. I checked the web site and it looks like the 1515/2Y-F is mislabeled as 1515/2D. I'll make sure that gets updated. The F stands for finned motor case. Let me know if you have any other question.

Regards,
Pedro.