Calgary, Alberta

About Me:

Electrical Engineer

Please tell us a bit about your UAV interest

Building a 4 to 6 prop hover UAV



Activity Feed

Graydon Tranquilla replied to criro1999's discussion Not more Registered Airmail shipping for Lipo from HobbyKing. Any alternatives?
"Draganflyer in Saskatoon supplies larger LiPo battery sizes and there are others.... e.g. a Hobbyshop in Swift Current that sells MRs almost exclusively to the RCMP.
But at the end of the day, I think you can still buy them from HK International for…"
Oct 8, 2013
Graydon Tranquilla replied to Luke Olson's discussion Material selection and sourcing for multi rotor frame
"Commercial carbon fiber sheet is thinner than you require. You probably want carbon fiber plate. However Carbon fiber in plate or sheet form lacks significant strength on the z axis even if it is quasi-isotropic. Sandwiching a lighter material…"
Oct 4, 2011
Graydon Tranquilla replied to Doug Carter's discussion Commercially Available UAV for Search and Rescue operations
"One possible solution but far too expensive from my perspective.
Sep 1, 2011
Graydon Tranquilla replied to mahmood's discussion Airframe Construction With Fiber Glass
"Check this out for making your own.... http://groups.yahoo.com/group/CompositeRockets/
Aug 31, 2011
Graydon Tranquilla replied to Danny Lombard's discussion Composite airframe
"Easy to obtain the Carbon fiber fabric and the appropriate epoxy (do not use polyester resin epoxy). Easy to make flat sheets and tubes of various diameter as I have done already. Cost? CF fabric is about $75 per yard * 50 inches wide. If labour is…"
Aug 31, 2011
Graydon Tranquilla replied to Ihab Ali's discussion Prop Optimization
"IMHO - I suspect that the optimal prop design and dimensions to date have been worked out by DraganFlyer. see photos. http://www.draganfly.com/uav-helicopter/draganflyer-x8/index.php. Not in particular the propeller shape nearest the center as well…"
Aug 31, 2011