1461

Item 1461

OTHER: Helicopter - Inside - Interleaving - Very Heavy Lift

Overview:

Interleaving helicopter with large vertical fuselage.

Interleaving helicopter for longline operations. Small cockpit located in center above the plane of the rotors.

Interleaving helicopter with conventional fuselage, plus Advancing Blade Concept and Active Blade Twist.

(no sketch) A very large Interleaving Helicopter with two fuselages. The fuselages are located directly under each rotor.

(no sketch) A helicopter similar to 4 except that it is for sling loads. There are two supporting cables, one from each of the small pods located under the two rotors. A third cable might be attached to a strong central tail, to give greater load control. The craft would fold-up for storage on a ocean vessel.

Drawing:

All rotors are in the same plane. Blue Rotors turn CW. Red rotors turn CCW.

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Notes:

For more information on the above rotor see; OTHER: Aerodynamic - Rotor Disk - Dual Configuration - Interleaving ~ Wild Idea

For more information on rotor see; OTHER: Aerodynamic - Rotor Disk - Dual Configuration - Interleaving

Consider having the rotor units as modular. In other words; the rotor hub, blades, transmission, static mast, flight-controls, bracing and torque-tubes are a single assembly. Particularly if the azimuths of the pinions were changeable, to suit different rotor counts. Fun for a model.

Wild Idea to Reduce Stagger and Perhaps Reduce Tip Loss:

The gap between the blade tip and the hub of the other rotor is minimal.

The rotors will have a few degrees of inward obliquity so that the retreating blades are horizontal.

The stagger between the masts is 1.08 times the radius of the disks (3-blade rotors).

The angle of blade tip to rotor hub interaction is approximately 40º of rotation.

Concern: Backlash in the power-train, which interconnects the two rotors, may cause a clashing.

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Initially displayed: June 9, 2005 ~ Latest revision: September 1, 2006

The above application of reverse velocity utilization in a twin main rotor helicopter 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.