To Primary Index
~ Aerodynamic Rotor with a 1:1 ratio Motor
in its Hub ~
Principal Assembly that consists of a rotor and motor, which is physically
linked with a second one by a frame and an electronic controller.
be used in twin-rotor vertical takeoff & landing (VTOL) personal air
vehicles (PAV), which
- easy to fly,
- safe to fly,
- efficient to operate,
- economical to produce,
- low maintenance.
a forerunner in the long-time quest for 'a helicopter in every garage'.
of Principal Assembly:
of Principal Assembly:
rotor, within which is located an
electric motor and a torque-pitch thrust control.
slow rpm electric motor provides the speed reduction,
coupling of the
of the torque and the blade twist to provide faster responses to thrust demands.
control by weight-shift, where response times are shortened due to the rigid
rotors and the low rotational inertia about the gimbal.
- Very few moving parts, due to the elimination of a
mechanical power train and minimal flight controls.
- A redundancy of the electrical power and the
electrical control systems.
- The provision of reserve electrical power for the
flare, should a forced autorotative ever come about.
- Alternative: The disk loading is quite low. Therefore,
autorotation to ground contact and then the actuation of motor’s ‘brake-state’.
primarily, to the symmetrical bilateral twin-rotor configurations:
MAKE & BUY:
physical differences between the above bilateral configurations may be little
more than the frame that connects the two rotors.
see; DESIGN: Electrotor-SloMo - Rotorhead
- Disk - Configuration Comparison
Additions, corrections and
technical suggestions requested. ~ firstname.lastname@example.org
To do a
search on this web side;
- Go to Google.
- Enter into the search box [site:unicopter.com
followed by the desired search criteria.] Such as: blade; blade
AND pitch; blade OR pitch
Page | SynchroLite Home Page | Electrotor Home Page | UniCopter Home Page | Nemesis Home Page | AeroVantage
Initially displayed: July 23, 2006 ~ Posted
to Rotary Wing Forum: September 28, 2006 ~ Posted on PPRuNe: June 23, 2007 ~
Last Revised: December 12, 2012
The above utility invention is openly and
publicly disclosed on the Internet to negate an entity from patenting it, to
the exclusion of all others whom may wish to use it. ~ Reference patent law 35
U.S.C. 102 A person shall be entitled to a patent unless - (a) the invention
was known ... by others in this country, ..., before
the invention thereof by the applicant for patent.