xfc3dcd
12-23-2006, 09:43 PM
As mentioned previously the XFC will be moving to the AMA site in Muncie Indiana for 2007. For details visit -
http://www.xfc-rc.com
This is just one of many exciting changes that will take place in the coming year at XFC. Pilot selection begins on 1/2/07. Stay tuned for more updates.
Below are the newly announced required maneuvers:
2007 XFC Helicopter Required Maneuvers -
Vertical ¾ Rolls with Big Ben on Top
Model flies straight and level (from right or left) parallel to the flight-line for 10m before pulling into a 90 degree vertical ascent on the centerline. While climbing vertically the model performs a ¾ axial roll (away from the pilot) and continues vertically. At this point the models rotors will be facing the pilot. At the top of the ascent, and without hesitation, the model performs a ¼ backward tumble into an inverted nose in hover. The model then performs a series of metronome type movements while progressing clockwise from a central pivot point in 13 equal steps about an imaginary clock center. This stage of the maneuver begins and ends at the 12:00 o’clock position. Upon returning to the final nose up 12:00 o’clock position, the model then performs a ¾ backwards vertical axial roll down along the same line as the entry followed by a 90 degree exit parallel to the ground and continues for another 10m in the same direction as the entry. Points will be deducted for the following reasons:
• Ascending/descending segments not centered and true vertical
• Model drifts from central pivot point during tics of clock
• Movement during clock tics from horizontal to knife edge are not equal
• Entry/exit not at same elevation and heading
• ¾ rolls are not axial
Pirouetting Rainbow “X”
Model begins pirouetting in a hover located approximately 40m to the left or right of the centerline. Model performs a rainbow arc diagonally across the centerline to an equal distance away from the flight-line while performing continuous pirouettes (right or left rotation) at a constant rate, pausing inverted at the same altitude as the start. With minimal hesitation the model performs a second equal length rainbow arc parallel to the flight-line, crossing the centerline and then pausing upright. The model then performs a second diagonal rainbow arc opposite the first, pausing inverted once again at its end. The final rainbow arc is once again parallel to the flight-line ending upright at the starting point. This figure is comprised of 4 pirouetting arcs that will follow the form of a closed figure “X” when viewed from above.
Points will be deducted for the following reasons:
• Rainbows not symmetrical and equal in length
• Rate of pirouetting not constant
• Arc starts and stops not equal altitude
• Arcs not centered over central point in front of pilot
• Entire maneuver not parallel to flight-line
Forward Backward Rolling Circles
Model flies straight and level (from right or left) parallel to the flight-line. Approximately 30m before crossing the centerline the model performs a 4 point axial roll (to right or left). As the model crosses the centerline it immediately begins a forward rolling circle away from pilot. At the end of the first rolling circle (centered in front of the pilot), the model performs a ½ backward tumble climbing inverted approximately 15m. The model then performs one slow inverted four point pirouette (minimum 4 seconds total). The model then performs a ¼ forward tumble descending vertically backwards (to right or left) into a smooth 90 degree transition back to horizontal and begins rolling backwards along a circular path tracing over the first circle. As the model again crosses the centerline at the end of the second rolling circle, the model then performs a backwards 4 point roll parallel to the flight-line for another 30m.
Points will be deducted for the following reasons:
• Both circles not centered on pilot’s position
• Continuous rolls not performed and at a constant rate
• Point rolls not equal in hesitation
• Circles not symmetrical/equal in size
• Altitude fluctuates during point or circular rolls
Have a safe and happy holiday!
Wendell Adkins
XFC Contest Director
http://www.xfc-rc.com
This is just one of many exciting changes that will take place in the coming year at XFC. Pilot selection begins on 1/2/07. Stay tuned for more updates.
Below are the newly announced required maneuvers:
2007 XFC Helicopter Required Maneuvers -
Vertical ¾ Rolls with Big Ben on Top
Model flies straight and level (from right or left) parallel to the flight-line for 10m before pulling into a 90 degree vertical ascent on the centerline. While climbing vertically the model performs a ¾ axial roll (away from the pilot) and continues vertically. At this point the models rotors will be facing the pilot. At the top of the ascent, and without hesitation, the model performs a ¼ backward tumble into an inverted nose in hover. The model then performs a series of metronome type movements while progressing clockwise from a central pivot point in 13 equal steps about an imaginary clock center. This stage of the maneuver begins and ends at the 12:00 o’clock position. Upon returning to the final nose up 12:00 o’clock position, the model then performs a ¾ backwards vertical axial roll down along the same line as the entry followed by a 90 degree exit parallel to the ground and continues for another 10m in the same direction as the entry. Points will be deducted for the following reasons:
• Ascending/descending segments not centered and true vertical
• Model drifts from central pivot point during tics of clock
• Movement during clock tics from horizontal to knife edge are not equal
• Entry/exit not at same elevation and heading
• ¾ rolls are not axial
Pirouetting Rainbow “X”
Model begins pirouetting in a hover located approximately 40m to the left or right of the centerline. Model performs a rainbow arc diagonally across the centerline to an equal distance away from the flight-line while performing continuous pirouettes (right or left rotation) at a constant rate, pausing inverted at the same altitude as the start. With minimal hesitation the model performs a second equal length rainbow arc parallel to the flight-line, crossing the centerline and then pausing upright. The model then performs a second diagonal rainbow arc opposite the first, pausing inverted once again at its end. The final rainbow arc is once again parallel to the flight-line ending upright at the starting point. This figure is comprised of 4 pirouetting arcs that will follow the form of a closed figure “X” when viewed from above.
Points will be deducted for the following reasons:
• Rainbows not symmetrical and equal in length
• Rate of pirouetting not constant
• Arc starts and stops not equal altitude
• Arcs not centered over central point in front of pilot
• Entire maneuver not parallel to flight-line
Forward Backward Rolling Circles
Model flies straight and level (from right or left) parallel to the flight-line. Approximately 30m before crossing the centerline the model performs a 4 point axial roll (to right or left). As the model crosses the centerline it immediately begins a forward rolling circle away from pilot. At the end of the first rolling circle (centered in front of the pilot), the model performs a ½ backward tumble climbing inverted approximately 15m. The model then performs one slow inverted four point pirouette (minimum 4 seconds total). The model then performs a ¼ forward tumble descending vertically backwards (to right or left) into a smooth 90 degree transition back to horizontal and begins rolling backwards along a circular path tracing over the first circle. As the model again crosses the centerline at the end of the second rolling circle, the model then performs a backwards 4 point roll parallel to the flight-line for another 30m.
Points will be deducted for the following reasons:
• Both circles not centered on pilot’s position
• Continuous rolls not performed and at a constant rate
• Point rolls not equal in hesitation
• Circles not symmetrical/equal in size
• Altitude fluctuates during point or circular rolls
Have a safe and happy holiday!
Wendell Adkins
XFC Contest Director