I am engaged in model airplane drawing, and the team is flying backwards. You can come and have a look if you are interested. Recently, a static model diagram has also been introduced.
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Fixed wing: fighter, glider, sprinkler, F3A/F3P/3D acrobatic performance machine, KT inkjet printer, passenger plane, unmanned aerial vehicle, flying wing, trigger cabin, elephant, etc. .
Helicopter category: model helicopter, real helicopter.
Ship models: O boats, speedboats, rowing boats, yachts, scientific research boats, sailboats, fishing boats, cargo ships, oil tankers, warships, etc. And the CAD drawings of the real ship. . . . .
Engine model turbojet engine, gasoline engine
The drawings are very complete and detailed.
Interpretation of F3C Action of International Rules
Second, the preliminary group A action
A 1。 Diamond-headwind (approach)/headwind (exit)
Take off vertically and hover for 2 seconds at the head-up altitude; Fly back and up to 2.5m above the flag 1(2), rotate 180 (taking the extension line of the flag as the axis), and hover horizontally in any direction for 2 seconds; Fly backwards and upwards to 5m above the takeoff point, and hover 360 degrees in any direction for 2 seconds; Fly backwards and descend to 2.5m above the flag 2( 1), and hover in any direction from 180 (taking the extension line of the flag as the axis) for 2 seconds; Fly backwards to the top of the take-off area and hover at the head-up altitude for 2 seconds; Vertical landing.
A2。 Inverted triangle-headwind (approach)/headwind (exit)
Take off vertically to the head-up altitude and stop for 2 seconds; Back at 45, and rotate from 180 in any direction to directly above the flag 1(2); Hover for 2 seconds; Fly horizontally backward, and rotate 360 degrees in any direction to directly above the flag 2( 1), and hover for 2 seconds; Descent along 45, turn 180 in any direction to the top of the take-off area, hold for 2 seconds, and land vertically.
A3。 Rotation "m"-headwind (in)/headwind (out)
Take off vertically and hover for 2 seconds at the head-up altitude; Fly backwards directly above the flag 1(2); Hover for 2 seconds, rise 5 meters vertically and rotate 360; Hover for 2 seconds; Descend along 45 and rotate 360 to the head-up height above the landing area, and hover for 2 seconds; Ascend in the opposite direction at 45, and rotate in the opposite direction at 360 to 5m above the flag 2( 1), and hover for 2 seconds; Drop vertically, rotate 360 degrees in the opposite direction at the same time, and pause for 2 seconds, at the same height as the eyes; Fly back to the take-off area and hover for 2 seconds; Vertical landing.
A4。 Two-way rolling tailwind (entrance)/tailwind (exit)
Horizontal straight flight exceeds10m; Rolling; Fly in a short straight line; Then roll in the opposite direction. Note: the two rolling speeds are the same and the directions are opposite; The longitudinal axis of the model helicopter is always consistent with the flight direction during the rolling process; The short straight flight in the middle must be symmetrical with the center line of airspace; The total duration of the two tumbling is more than 4 seconds, and it ends after flying 10m.
A5。 Two and a half stall reversals-headwind (entry)/headwind (exit)
Horizontal straight flight10m; 1/4 The inner somersault rises along 90, makes a half roll, and then rises vertically (the distance is not less than the length of the fuselage); Top rotation 180, nose down; Do 1/2 somersault and enter the second stall reversal; Top rotation 180, nose down, do a half roll; At the beginning of the operation, the height was 1/4.
Deduction: the height of two rolling is different; The heights of these two rotations are different.
A6。 Cobra- Downwind (entrance)/Downwind (exit)
Horizontal straight flight10m; Enter the 45 straight line and rise more than 5m; Do a half roll, and the 45 straight line will continue to rise more than 5m; Do 1/4 somersault, and then descend more than 5m along the 45 straight line; Do the second half of the volume; Continue to descend more than 5m along the 45 straight line, return to the altitude recovery, and end the action after flying horizontally 10m.
Deduction: there is no obvious horizontal straight flight before and after half roll.
A7。 Roll backward-against the wind (in)/against the wind (out)
Horizontal straight flight10m; After crossing the center line, enter the vertical rise with 1/4 somersault, and after reaching the highest point, do a small radius backward flying somersault; Enter a straight flight backwards and do a back flip at the same height; Do the second small radius backward somersault, with the nose vertically downward; The model helicopter descended vertically according to the route symmetrical to the water entry trajectory, and turned out 1/4 somersault. The altitude and nose direction are the same as when entering, flying horizontally and straight 10m, and ending the action.
A8。 Cuba 8- Tailwind (Entry)/Tailwind (Exit)
Horizontal straight flight 10m, somersault 5/8; When the model helicopter enters a 45 inverted descent, it makes a 1/2 semi-roll and flies forward into the internal somersault; When the model helicopter is descending at 45 degrees again, do a second 1/2 half roll to change the entry altitude.
Easy to deduct points: two and a half volumes do not cross or overlap at the center point.
A9。 360 rotating lifting belt-headwind (entrance)/headwind (exit)
Fly in a straight line 10m, enter a vertical rising state, and turn inward1/4; After reaching the highest point, do somersaults and hover in a straight line; Do 360 slow rotation for at least 4 seconds; Then do eversion, nose down, vertical descent; Somersault, get out of the water at the water entry height; Horizontal straight flight 10m or more, end the action.
Deduction: the rotation is less than 360 or the time is less than 4 seconds.
A 10。 Spin landing zone 180 rpm-tailwind (in)/headwind (out)
The flying height of the model helicopter is not less than 20m, and the helicopter rotates through the imaginary plane (through the middle referee vertical plane and the mid-point of the take-off and landing area), turning 180 and descending at the same time; Finally landed in the landing zone.
Note: when the model helicopter passes through the imaginary plane, the engine must be turned off, and the turning and descending rate will remain unchanged during the whole action; From the air, the trajectory must be a semicircle, starting from an imaginary plane and ending in an imaginary straight line (the connecting line between the middle referee and the center of the landing area); No trajectory shall be parallel to the ground or the referee line.
Third, the last group C action
C 1。 Hourglass 2- Headwind (entrance)/Headwind (exit)
The model helicopter takes off vertically, rises to the head-up altitude and hovers for 2 seconds; Fly backwards until the flag 1(2) hovers for 2 seconds; The diagonal rises to 4m above the marker flag 2( 1), and makes two reverse rotations of 180 at the same time; Hover for 2 seconds, fly back to the flag surface 1(2) horizontally, and make two reverse 180 rotations at the same time (the first 180 rotation ends right above the take-off area, and then immediately make the second 180 rotation) for 2 seconds; Diagonally descend 4m to the line-of-sight height above the flag 2 (1), make two opposite rotations at the same time, and turn to hover for 2 seconds; Back horizontally, fly back to the top of the landing area, hold for 2 seconds, and land vertically.
C2。 Rotating hexagon-headwind (in)/headwind (out)
The model helicopter takes off vertically and rises to the head-up altitude; Hover for 2 seconds, fly backwards, hover for 2 seconds at the center of the line connecting the flag 1(2) in the take-off area, and rotate 90 degrees; Rise to 2m (vertical height) above the flag 1(2) along one side of the hexagon, hover for 2 seconds, and rotate 90 degrees in the same direction for 2 seconds; Fly backward, rise to 4m above the center of the connecting line between the take-off area and the flag 1(2), hold for 2 seconds, rotate 90 degrees in the same direction, and hold for 2 seconds; Then fly horizontally for 5m, reach 4m above the center of the connecting line between the take-off area and the flag 2( 1), and rotate 90 in the opposite direction; Fly back to 2m above the flag 2( 1), hover for 2 seconds, rotate 90 degrees in the opposite direction, and hover for 2 seconds; Descend along the hexagon to the head-up position above the center of the connecting line between the take-off area and the flag 2( 1), and rotate 90 in the opposite direction; Fly backward horizontally over the landing area, hold for 2 seconds, and land vertically.
Easy to deduct points: hexagon asymmetry; The last three rotation directions are the same as the first three (0 point).
C3。 Rectangular four-position spin-headwind (in)/headwind (out)
The model helicopter takes off vertically, rises to the head-up altitude and hovers for 2 seconds; Fly back to the flag1(2); Hover for 2 seconds, rotate 90 degrees at the same time, and rise 1m, and do this for 4 times, with a slight pause between rotations, so that the model rises to 4 meters above the line of sight and hovers for 2 seconds; Then while flying backward horizontally, do 360-degree rotation to flip flag 2( 1) and hover for 2 seconds; Do 90 rotation and descend 1m at the same time, and do this for four times, with a pause between rotations, so that the model descends to the line of sight height and hovers for 2 seconds; Back off, fly back to the landing area, hover for 2 seconds, and land vertically.
C4。 Four-position rolling tailwind (entrance)/tailwind (exit)
The model helicopter flies horizontally and straight at least10m; To do a four-position roll, it is required to see the rhythm clearly and the flight length is equal; After tumbling, fly horizontally and linearly 10m, and end the action.
Easy to deduct points: four-position roll, different flight lengths; The rhythm is not obvious.
C5。 Two somersaults-headwind (in)/headwind (out)
The model helicopter enters in an inverted attitude; Fly 20 meters horizontally in a straight line and do two everts upward; After flying 20 meters in a straight line, do a half roll and fly forward to recover.
Easy to deduct points: two and a half volumes are not at the same height.
C6。 Side flying cobra belt rotates 450-downwind (in)/downwind (out)
The horizontal straight flight of the model helicopter shall not be less than10m; Ascend to the highest point along the upper edge of 45, roll in the middle of the ascending line segment, and become a lateral flight (the rotor faces the operator); The top makes a 450-degree rotation counterclockwise and enters a 45-degree lateral flight descent; Make a position roll in the middle of the descending line segment, take a forward flight attitude, go out of bounds after entering the altitude, and end when the straight horizontal flight exceeds 10m.
Easy to deduct points: inaccurate 450 rotation; The two lateral trajectories are not perpendicular.
C7。 M- Belt 540 Stalled Reverse-Headwind (In)/Headwind (Out)
The horizontal straight flight of the model helicopter shall not be less than10m; 1/4 somersault rolls vertically upwards (the rotor plane faces the operator); Continue to rise, the height is longer than the fuselage, to the highest point; Make a 540 rotation with the nose down; Drop vertically and do a roll; Flip for half a week and enter the second vertical rise; Make a position roll, make the rotor plane face the operator, and continue to rise vertically, with a distance greater than one fuselage length; After reaching the highest point, make a 540 rotation with the nose down; Drop vertically and do a roll; Turn an inside somersault outward and return to the water level.
Easy to deduct points: the vertical rising section after rolling is not obvious; Two 540 rotations are not at the same height.
C8。 Horizontal Figure-8 Belt Rolling-Downwind (entrance)/Downwind (exit)
Fly in a straight line and do 5/8 somersaults; When the model helicopter enters a 45-degree inverted descent, it makes a roll and enters a somersault; When the model helicopter enters the 45 descending state again, do the second roll, and recover with 1/8 somersault.
Easy to deduct points: the two volumes do not cross or overlap at the center.
C9。 Vertical spike-headwind (entry)/headwind (exit)
The horizontal straight flight of the model helicopter shall not be less than10m; Enter the vertical rise with 1/4 somersault, and make a position roll so that the rotor plane faces the operator; Continue to rise, the height is longer than the fuselage, to the highest point; The model does somersault and hover upside down, with the nose pointing to the manipulator and hovering for 3 seconds; Then make three 90-degree rotations clockwise (from top to bottom), with at least a pause of 1 second between each rotation, and then the model is in an inverted state with the tail facing the wind; The model somersaults and enters a vertical descent; Do a somersault and fly out at the entry altitude.
Easy to deduct points: inaccurate 450 rotation; The ascending and descending trajectories are not perpendicular to the ground.
C 10。 S-shaped spiral belt 180 degree autorotation landing-headwind (entry)/downwind (descent)/downwind (recovery)
The model helicopter entered the action against the wind from an altitude of more than 40 meters; Fly against the wind, turn to180 after rotating through the imaginary plane (or beyond a little distance); When crossing the imaginary plane for the second time (crossing with the wind), rotate quickly180; Fly backwards, descend, turn to 180 and land.