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tiltrotorcoaxial's blog
Posted by tiltrotorcoaxial | Jun 26, 2012 @ 07:35 PM | 3,312 Views
b (0 min 11 sec)

Posted by tiltrotorcoaxial | Feb 17, 2012 @ 08:50 PM | 4,139 Views
Posted by tiltrotorcoaxial | Jan 08, 2012 @ 03:59 PM | 4,958 Views
CAD drawings of fully articulated coaxial rotor head with elastomer dampened flapping hinges and differential collective pitch yaw control. Here is a link to a coaxial with fully articulated head, Kamov "V-80" http://army.lv/image_descr.php?id=14...8&fullsize=yes).
Posted by tiltrotorcoaxial | Dec 29, 2011 @ 10:25 AM | 4,790 Views
Posted by tiltrotorcoaxial | Dec 15, 2011 @ 02:27 PM | 4,995 Views
370mm diameter rotor coaxial. These stl files are intended for 3d printing in ABS, so the parts are a bit thicker than they would be for injection molding in ABS.

http://www.youtube.com/watch?v=zst6827EM50&feature=relmfu[/URL]

http://www.youtube.com/watch?v=A37YRr0WJ8Y&feature=relmfu[/URL]
Posted by tiltrotorcoaxial | Dec 01, 2011 @ 08:37 AM | 5,695 Views
rotor hub
Posted by tiltrotorcoaxial | Apr 03, 2011 @ 10:07 PM | 8,959 Views
I 3D printed the parts in ABS, however these cad files are meant for CNC machining out of Aluminum.
Posted by tiltrotorcoaxial | Feb 27, 2011 @ 05:59 PM | 7,607 Views
tiltwing using the airscoot rc helicopter.
Tilt Wing Coaxial Helicopter VTOL RC 2 (0 min 40 sec)

Posted by tiltrotorcoaxial | Jan 30, 2011 @ 06:37 PM | 7,983 Views
Posted by tiltrotorcoaxial | Jan 23, 2011 @ 07:14 PM | 7,697 Views
Blade cx free wing (with servo arrestor) and Airscoot tilt wing free wing
Tilt Rotor Variable Pitch Range (Locking) Free Wing Coaxial Helicopter (1 min 15 sec)
http://www.youtube.com/watch?v=nY7QxaNP650
Posted by tiltrotorcoaxial | Dec 24, 2010 @ 01:29 AM | 8,951 Views
In hover the paraglider is aerodynamically oriented vertically to minimize drag . As the Tilt Rotor accelerates, the Stringless Paraglider free wing decreases in pitch and raises above the helicopter reorienting itself horizontally, adding lift. The rotors can be shut off and the Para-glider will glide with the helicopter as its payload. The glide ratio when the rotors are not spinning is about 5 to 1. More videos with improved glider design to come on my youtube channel.
stringless paraglider tiltrotor rc (1 min 7 sec)
...Continue Reading
Posted by tiltrotorcoaxial | Dec 18, 2010 @ 10:59 PM | 9,749 Views
The servo varies the range of free motion in the free wing's pitch axis (variable free wing)
Tilt Rotor Variable Pitch Locking Free Wing Coaxial Helicopter (5 min 56 sec)
The servo arm can be lowered to restrict the range in pitch motion or raised to allow the wing to "weathervane" in the headwinds. The cad files are a previous version of 40 lb coaxial I drew in Viacad (the new version with lighter weight rotor head and less space between the rotors is now at the top of my blog). Next I will draw the motor and servo mounts. The latest draft replaces the M4 at the end of the feathering spindle with an M5 among other things, estimated centrifugal force on each blade for 1meter blade at 1100 rpm is over 400 pounds! I am currently working on Fiberglass 3d printing which would allow me to print blade grips with enough tensile strength for this application. The next step will be to exchange the ABS extruder with and epoxy extruder. The ideal design for a Fiberglass 3d Printer would be a Stereolithography Fiberglass 3d Printer (Because STL uses photo-polymer expoxy), however Stereolithography machines are much more expensive than FDM systems....Continue Reading
Posted by tiltrotorcoaxial | Dec 08, 2010 @ 04:08 PM | 10,161 Views
http://www.youtube.com/watch?v=EMTYNVcq-yo[/URL]
http://www.youtube.com/watch?v=6vIo6RKS06o