AeroVantage

VTOL aircraft with 2x4 PropRotor (2-state disk area)

Cruise ~ Twin Counterrotating PropRotors

Hover ~ Quad PropRotors

For larger view of the craft click on either of the above drawings.

AeroVantage

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The Objective:

A VTOL aircraft that is aerodynamically efficient because it generates low velocity thrust from a large disk area during hover and high velocity thrust from a small disk area during cruise.

To aerodynamically reduce the EFFECTIVE total disk area of a PropRotor in cruise by 50% from its PHYSICAL total disk area in hover. Thereby creating a quad PropRotor VTOL craft that has;

A greater figure of merit in hover then current tilt-rotors, and
A faster speed in cruise then current helicopters, and likely faster than current tilt-rotors.

For more information see; Effective Aerodynamic Disk Area

Animations:

Proposed method; Item1642

Lengthening the upper arms on 1642, to make its gap and stager closer to 1655 below.

Proposed method; Item1655

Primary Grouping:

Overview

Workup of Flying Wing UAV w/ 2x4 PropRotor - Overview

Concerns & Tasks

DESIGN, MAKE & BUY: ~ ~ ~ ~ ~ ~ The light gray texts below do not yet have linked pages.

PropRotor	Motor	Weight & Balance
Fuselage	Transition Mechanism	Dimension, Area & Drag
Landing Gear	Control	Trim, Stability & Control
Instrument	Power Storage	Vibration Analysis
Electrical		Special Tool

OTHER:

Aerodynamics	Intermeshing Information	Miscellaneous
Flight Dynamics	Helicopters - Outside	Regulations
Mechanics	Helicopters - Inside	Composites
Electrics	Rotor Concepts:	CNC Workstation

To Search This Site

Go to Google ~ Enter; 'the desired words or phrases etc' ~ Then append the entry with; 'UniCopter'.

Initially displayed: January 30, 2008 ~ Posted on PPRuNe; January 31, 2008 ~ Posted on Rotary Wing: January 31, 2008 ~ Posted on Eng-Tips: February 1, 2008 ~ Latest revision; November 20, 2008

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.