Variable pitch propeller apparatus and variable thrust aircraft using same

A variable thrust aircraft comprising:

• a) an aircraft body having an aircraft body length axis from a front to a back of the aircraft body;
• wherein the front of the aircraft body is in a forward location of the aircraft;
• and
• wherein the back of the aircraft body is a backward location of the aircraft;
• b) a pair of wings that extend out from opposing sides of the aircraft body, each wing comprising:
• i) a top surface;
• ii) a bottom surface;
• and
• iii) a length extending along a wing length axis from a connected end with the aircraft body to an extended end;
• c) a variable pitch propeller apparatus coupled to each of the pair of wings and comprising:
• i) a drive shaft that rotates about a drive shaft length axis;
• ii) a plurality of propellers, each propeller comprising:
• a coupled end that is coupled to said drive shaft;
• an extended end;
• a length from the coupled end to the extended end;
• a first side;
• and
• a second side;
• wherein each of the plurality of propellers has a propeller length axis that extends along a length of the propeller from perpendicularly to a length and rotational axis of the drive shaft;
• iii) a flexible circular race extending around the drive shaft that is actuated to change an offset distance comprising:
• a first portion at a first offset distance to the propeller length axis;
• and
• a second portion at a second offset distance to the propeller length axis;
• iv) a race deflector coupled with the flexible race to move said flexible race to change said offset distance;
• wherein the offset distance is a distance that extends parallel to the drive shaft length axis from the race to the length axis of the one of said propellers;
• v) a race-linkage between the circular race and the propeller comprising:
• a race end;
• and
• a propeller end;
• wherein the race end is coupled with the race and traverses along the circular race ring as the propeller rotates;
• wherein the propeller end is coupled with the propeller and rotates the propeller about the propeller length axis when the offset distance changes about the race.

A variable thrust aircraft comprising:

• a) an aircraft body having
• b) a variable pitch propeller apparatus coupled to the aircraft body and comprising:
• i) a drive shaft that rotates about a drive shaft length axis;
• ii) a plurality of propellers, each propeller comprising:
• a coupled end that is coupled to said drive shaft,
• an extended end;
• a length from the coupled end to the extended end;
• a first side;
• and
• a second side;
• wherein each of the plurality of propellers has a propeller length axis that extends along a length of the propeller from perpendicularly to a length and rotational axis of the drive shaft;
• iii) a flexible circular race extending around the drive shaft that is actuated to change an offset distance comprising:
• a first portion at a first offset distance to the propeller length axis,
• a second portion at a second offset distance to the propeller length axis;
• iv) a race deflector coupled with the flexible race to move said flexible race to change said offset distance;
• wherein the offset distance is a distance that extends parallel to the drive shaft length axis from the race to the length axis of the one of said propellers;
• v) a race-linkage between the circular race and the propeller comprising:
• a race end;
• and
• a propeller end;
• wherein the race end is coupled with the race and traverses along the circular race ring as the propeller rotates;
• wherein the propeller end is coupled with the propeller and rotates the propeller about the propeller length axis when the offset distance changes about the race.