1773

Item 1773

OTHER: Helicopter - Inside - Coaxial - Electrotor- MicroLite

Drawing:

For a larger view click on the above drawing, then click on the mouse (magnifying glass) for a clearer view.

Helicopter Specifications page 1, Helicopter Specifications page 2

In the above Spec pages 2-blades per rotor and a pitch of 9.28º requires 29.9 HP to hover at 300 lb GW.

In the above Spec pages 3-blades per rotor and a pitch of 7.28º would requires 24.6 HP to hover at 300 lb GW.

The implication is that we should go with the 2 extra blades and 10 more lbs and thereby eliminate the 2P vibration also.

Design rotor hubs to take 2 and 3 blades each.

Bill of Material

Targeted Objectives:

Light weight

Portability

Simple

Extremely high reliability

Low cost

Low maintenance.

Observable deterioration.

Easy to pilot.

Safe to pilot.

Potential Improvements to the MicroLite

Sit-down fuselage. Fuselage

Two-position root blade pitch. (torque-pitch).

Consider implementing a spring (rubber donut?) to center principal assembly in respect to the tripod.

Longitudinal trim control and 2P vibration suppressor. If needed.

Variable root blade pitch. (torque-pitch). OTHER: Miscellaneous - Thoughtless Ideas - Torque/Pitch Collective Rotor Hub

Electrotor-SloMo for Coaxial. Electrotor - SloMo

Tip pitch change. OTHER ~ Flight Dynamics - Rotor Hub - Aerodynamically Active Blade Twist (AABT). Eventually to be done by the blade's composite lay-up if possible.

Produce in-house blades with longer span for weight-shift helicopter. Will require more effort from pilot and 2P vibration will become more objectionable.

Fuselage for Electrotor-MicroLite ~ perhaps the SynchroLite's

Rotor brake and/or Regeneration.

In Intermeshing configuration.

~ Reliability, Simplicity, Controllability and Safety - by Deconstruction ~

Future R&D:

Development that builds upon the Electrotor-SloMo motor work.

Electric UniCopter with propulsor. Maybe

AeroVantage For sure

Alternative Drive:

OTHER: Miscellaneous - Thoughtless Idea - Engine for Coaxial Rotor

Initially displayed: October 02, 2009~ Last Revised: November 12, 2009

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.