Vtol short hop aircraft
First Claim
1. AN AIRCRAFT HAVING A FUSELAGE, TWO SOMEWHAT IDENTICAL FANS, TWO SOMEWHAT IDENTICAL ROTORS, A POWER SOUCE, A GEAR BOX, A TRANSMISSION, A RUDDER, AN ELEVATOR, A FUEL TANK, CONTROLS, IN A COMBINATION WITH ONE OR MORE UNITS CONSISTING OF A HORIZONTALLY DISPOSED DUCTS, EXTENDING MEDIALLY THROUGH A LARGER VERTICAL DUCT, THEREBY DIVIDING THE LATTER IN TWO, FORMING A HALF-MOON DOWNWASH ON EACH SIDE OF SAID HORIZONTAL DUCT, ALL THREE DUCTS HAVING FREE AND OPEN INLETS AND OUTLETS FOR DIRECTING THREE INDEPENDENT AIRSTREAMS, ONE REARWARDLY AND TWO DOWNWARDLY, RESPECTIVELY, SAID DUCTS HAVING A COMMON CENTER OF GRAVITY, LOCATED SUBSTANTIALLY IN THE CENTER RELATIVE TO SAID INLETS AND OUTLETS, WITH TWO SOMEWHAT IDENTICAL COUNTER-ROTATING FANS LOCATED EQUIDISTANT FORWARD IDENTICAL COUNTER-ROTATING DIRECTING THE AIR REARWARDLY IN SAID HORIZONTAL DUCT, WITH TWO SOMEWHAT IDENTICAL COUNTER-ROTATING ROTORS EQUIDISTANT FROM SAID CENTER VERTICALLY, DIRECTING THE AIR DOWNWARDLY IN SAID HALF-MOON DUCTS, SAID ROTORS AND FANS BEING ACTIVATED BY AN ADEQUATE POWER SOURCE, SAID ROTORS HAVING EACH A LARGE DIAMETER HUB SUPPORTING A PLURALITY OF HOLLOW LIGHTWEIGHT BLADES, TANGENTIALLY AND ROTATIVELY SECURED TO A HORIZONTAL CIRCULAR, FLAT-RIM PLATFORM, WHICH IS A PART OF SAID HOLLOW HUB, PERMITTING SAID FANS TO EXTEND UP INSIDE SAID HUBS TO DELIVER RAM-AIR THROUGH THE HUB-ANNULAR OPENINGS INTO THE HOLLOW BLADE, WHERE, MEETING WITH RESISTANCE OFFERED BY AIR ALREADY IN THE TRAILING EDGE OF THE BLADE, HAVING ENTERED ALONG THE UNDERSIDE AERODYNAMIC-LINE CHANNEL, THE LATTER SLOWER-MOVING AIR ACTIVATED BY THE WEIGHT OF THE AIRCRAFT AND THE CENTRIFUGAL FORCE OF ROTATION, WHILE THE HUB AIR ENTERING THE BLADE, FOLLOWS ALONG THE LEADING EDGE, SPEEDING UP THE TRAILING EDGE AIR TO EXIT TOGETHER AT THE TIP TRAILING EDGE ON A SLANT DOWNWARDLY AS A COMBINED DOWNWASH DIRECTED BY THE CURVED WALLS OF SAID HALF-MOON DUCTS, TO FORM A PILLOW OF AIR BENEATH THE AIRCRAFT, EXISTING WITH A SLOWER-MOVING INNER DOWNWASH FROM THE OUTSIDE OF SAID ROTOR BLADES, THE TOTAL DOWNWASH TENDING TO STEADY THE AIRCRAFT LATERALLY, WHILE PRODUCING LIFT, SAID HORIZONTAL DUCT HAVING CURVED SIDES, DIVERGING OUTWARDLY PAST SAID FANS FROM CENTERLINE TO INLET AND OUTLET, WITH SIDES OF SAID DUCT HAVING A SOME-WHAT FAN-SHAPED CHANNEL, LEADING IN SOMEWHAT HORIZONTAL LINE TO THE FOREMOST FAN, AND A SOMEWHAT SIMILAR CHANNEL LEADING FROM THE REAR RAN IN A SOMEWHAT HORIZONTAL LINE OF SAID DUCT, WHEREBY AIR IS DRAWN THROUGH SAID FAN BEING DIRECTED BETWEEN SAID FANS, TO EXIT AFT OF SAID DUCT, AFTER PASSING OVER AND UNDER PASSING ROTOR BLADES IN FRONT UNDER THE HUB MEDIALLY, AND OVER AND UNDER SAID PASSING BLADES OF SAID ROTOR, WHEREBY THE HORIZONTAL AIRSTREAM FROM SAID FANS MEETS WITH THE GREATEST RESISTANCE WHEN THE ROTOR BLADES ARE AT MAXIMUM PITCH, THEREBY GREATLY AUGMENTING THE LIFT, SAID HORIZONTAL DUCT HAVING A LONGITUDINAL BEAM EXTENDING MEDIALLY ACRODD TOP AND BOTTOM WITH ROOM FOR ROTORS BETWEEN DUCT AND BEAM, TOP AND BOTTOM, WITH SUPPORTING UPRIGHTS FORWARD AND AFT OF INLET AND OUTLET, RESPECTIVELY, WITH SAID VERTICAL STATOR SUPPORTING TUBE MEDIALLY DISPOSED TO MAKE A RIDID FRAMEWORK SUPPORTING SAID MEDIALLY LOCATED GEAR BOX IN SAID DUCT, AND SAID TRANSMISSION BETWEEN SAID GEAR BOX AND BEAMS ABOVE AND BELOW, SAID ELEVATOR ACTING AS A SINGLE UNIT FOR NOSE UP OR DOWN ATTITUDE CHANGE IN CONJUNCTION WITH SAID VERTICAL RUBBER, HINGED TO SAID STATOR TUBE AND EXTENDING UNDER SAID DUCT REARWARDLY, IMMEDIATELY ABOVE SAID LOWER BEAM, OR DISPENSING WITH SAID RUBBER AND USING A DOUBLE OR SPLIT-FAN SHAPED ELEVATOR, WHICH COMBINES LATERAL ATTITUDE CONTROL WITH DIRECTIONAL, USING STANDARD MEANS TO CONTROL.
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Citations
1 Claim
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1. AN AIRCRAFT HAVING A FUSELAGE, TWO SOMEWHAT IDENTICAL FANS, TWO SOMEWHAT IDENTICAL ROTORS, A POWER SOUCE, A GEAR BOX, A TRANSMISSION, A RUDDER, AN ELEVATOR, A FUEL TANK, CONTROLS, IN A COMBINATION WITH ONE OR MORE UNITS CONSISTING OF A HORIZONTALLY DISPOSED DUCTS, EXTENDING MEDIALLY THROUGH A LARGER VERTICAL DUCT, THEREBY DIVIDING THE LATTER IN TWO, FORMING A HALF-MOON DOWNWASH ON EACH SIDE OF SAID HORIZONTAL DUCT, ALL THREE DUCTS HAVING FREE AND OPEN INLETS AND OUTLETS FOR DIRECTING THREE INDEPENDENT AIRSTREAMS, ONE REARWARDLY AND TWO DOWNWARDLY, RESPECTIVELY, SAID DUCTS HAVING A COMMON CENTER OF GRAVITY, LOCATED SUBSTANTIALLY IN THE CENTER RELATIVE TO SAID INLETS AND OUTLETS, WITH TWO SOMEWHAT IDENTICAL COUNTER-ROTATING FANS LOCATED EQUIDISTANT FORWARD IDENTICAL COUNTER-ROTATING DIRECTING THE AIR REARWARDLY IN SAID HORIZONTAL DUCT, WITH TWO SOMEWHAT IDENTICAL COUNTER-ROTATING ROTORS EQUIDISTANT FROM SAID CENTER VERTICALLY, DIRECTING THE AIR DOWNWARDLY IN SAID HALF-MOON DUCTS, SAID ROTORS AND FANS BEING ACTIVATED BY AN ADEQUATE POWER SOURCE, SAID ROTORS HAVING EACH A LARGE DIAMETER HUB SUPPORTING A PLURALITY OF HOLLOW LIGHTWEIGHT BLADES, TANGENTIALLY AND ROTATIVELY SECURED TO A HORIZONTAL CIRCULAR, FLAT-RIM PLATFORM, WHICH IS A PART OF SAID HOLLOW HUB, PERMITTING SAID FANS TO EXTEND UP INSIDE SAID HUBS TO DELIVER RAM-AIR THROUGH THE HUB-ANNULAR OPENINGS INTO THE HOLLOW BLADE, WHERE, MEETING WITH RESISTANCE OFFERED BY AIR ALREADY IN THE TRAILING EDGE OF THE BLADE, HAVING ENTERED ALONG THE UNDERSIDE AERODYNAMIC-LINE CHANNEL, THE LATTER SLOWER-MOVING AIR ACTIVATED BY THE WEIGHT OF THE AIRCRAFT AND THE CENTRIFUGAL FORCE OF ROTATION, WHILE THE HUB AIR ENTERING THE BLADE, FOLLOWS ALONG THE LEADING EDGE, SPEEDING UP THE TRAILING EDGE AIR TO EXIT TOGETHER AT THE TIP TRAILING EDGE ON A SLANT DOWNWARDLY AS A COMBINED DOWNWASH DIRECTED BY THE CURVED WALLS OF SAID HALF-MOON DUCTS, TO FORM A PILLOW OF AIR BENEATH THE AIRCRAFT, EXISTING WITH A SLOWER-MOVING INNER DOWNWASH FROM THE OUTSIDE OF SAID ROTOR BLADES, THE TOTAL DOWNWASH TENDING TO STEADY THE AIRCRAFT LATERALLY, WHILE PRODUCING LIFT, SAID HORIZONTAL DUCT HAVING CURVED SIDES, DIVERGING OUTWARDLY PAST SAID FANS FROM CENTERLINE TO INLET AND OUTLET, WITH SIDES OF SAID DUCT HAVING A SOME-WHAT FAN-SHAPED CHANNEL, LEADING IN SOMEWHAT HORIZONTAL LINE TO THE FOREMOST FAN, AND A SOMEWHAT SIMILAR CHANNEL LEADING FROM THE REAR RAN IN A SOMEWHAT HORIZONTAL LINE OF SAID DUCT, WHEREBY AIR IS DRAWN THROUGH SAID FAN BEING DIRECTED BETWEEN SAID FANS, TO EXIT AFT OF SAID DUCT, AFTER PASSING OVER AND UNDER PASSING ROTOR BLADES IN FRONT UNDER THE HUB MEDIALLY, AND OVER AND UNDER SAID PASSING BLADES OF SAID ROTOR, WHEREBY THE HORIZONTAL AIRSTREAM FROM SAID FANS MEETS WITH THE GREATEST RESISTANCE WHEN THE ROTOR BLADES ARE AT MAXIMUM PITCH, THEREBY GREATLY AUGMENTING THE LIFT, SAID HORIZONTAL DUCT HAVING A LONGITUDINAL BEAM EXTENDING MEDIALLY ACRODD TOP AND BOTTOM WITH ROOM FOR ROTORS BETWEEN DUCT AND BEAM, TOP AND BOTTOM, WITH SUPPORTING UPRIGHTS FORWARD AND AFT OF INLET AND OUTLET, RESPECTIVELY, WITH SAID VERTICAL STATOR SUPPORTING TUBE MEDIALLY DISPOSED TO MAKE A RIDID FRAMEWORK SUPPORTING SAID MEDIALLY LOCATED GEAR BOX IN SAID DUCT, AND SAID TRANSMISSION BETWEEN SAID GEAR BOX AND BEAMS ABOVE AND BELOW, SAID ELEVATOR ACTING AS A SINGLE UNIT FOR NOSE UP OR DOWN ATTITUDE CHANGE IN CONJUNCTION WITH SAID VERTICAL RUBBER, HINGED TO SAID STATOR TUBE AND EXTENDING UNDER SAID DUCT REARWARDLY, IMMEDIATELY ABOVE SAID LOWER BEAM, OR DISPENSING WITH SAID RUBBER AND USING A DOUBLE OR SPLIT-FAN SHAPED ELEVATOR, WHICH COMBINES LATERAL ATTITUDE CONTROL WITH DIRECTIONAL, USING STANDARD MEANS TO CONTROL.
Specification
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Current AssigneeLeif Anker-Holth
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Original AssigneeLeif Anker-Holth
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InventorsLEIF ANKER-HOLTH
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Application NumberUS04/452,462Time in Patent Office453 DaysField of SearchUS Class Current244/23.00BCPC Class CodesB64C 27/20 Rotorcraft characterised by...B64C 29/0025 the propellers being fixed ...
