Have any of you Radian Lovers tried flying contests with your Radians? If not, here is a format you might try. IT is referred to as X5J. ere is a like to the discussion.
http://www.lisfsoar.proboards.com/i...isplay&thread=3The link is to the forum board of our club. the format is explained and there is some discussion about the contest format, but I am going to copy the rules here. We did not develop this format, but I can tell you we are having fun flying the fun contest.
X5J CONTEST RULES
1. Any electric powered sailplane or other electric aircraft can enter the contest. Any
battery arrangement is acceptable.
2. The number of rounds will be set by the Contest Director with a minimum of four (4) rounds needed to declare a valid contest and the norm being 5 rounds.
3. Flight times per round will also be set by the CD and can vary from round to round. One point is scored per second of flight time and one point deducted for each second over the target flight time. Flight time starts when the plane leaves the pilots hand and ends when any piece of the plane makes contact with the ground. The maximum points possible on any single flight are 60 pts X the target duration in minutes. Round the flight time to the closest second. The normal target time for a round is 8-10 minutes.
Example (using 10 minutes as the target duration):
9min. 50 sec. flight = 540 points + 50 landing points = 590 points
10 min. 4 sec. flight = 600 points – 4 points with 0 lanidng points = 596pts
4. Motor run time is unlimited but subtracted from the flight time (note para 4 below).
Example:
600 flight points - 19 motor run points = 581 total round points
5. Thr Radian would have a motor handicap of .95% as we fly the contest. Or you could just make it 100$ and keep it simple. If you mix in other electric gliders or aircraft then you can apply motor handicaps.
Motor handicap: brushless 95%, brushed Cobalt and brushed car motors 75%, Ferrite 45%, and Outrunners with a 28mm or less bell diameter and 17mm length 68%, Speed400 30%. Actual motor run rounded to the closest second is multiplied by the motor handicap percentage. Round this calculated value to the closest 1/10th of a second.
Example:
Cobalt motor run 34 .6 sec. = 35 sec. X 0.75 = 26.25 sec. = 26.3 points.
Brushless motor run 41.3 sec. = 42 sec. X 0.95 = 39.9 sec.
6. Landing points are measured from the center of the landing circle to the nose of the plane. For each foot from the center point subtract 1 point from max of 30 points.
Example:
Plane wing tip is 12 ft from the designated center point. 30 – 12 = 18 points.
7. You may restart your motor as many times as needed but on the second motor start you will no longer be able to score any landing points.
Contestants will not have to do any of the above math shown in the above examples. The CD’s spreadsheet will handle all of that.
Timers need two stopwatches, one for flight time and one for motor run time. Pilot and timer should work out a signal as to when he is starting the motor (i.e. "restarting motor...on...off") so the timer can track that time.
So, if you want to test your skills and have some fun with your friends, try our X5J contest format. It is lots of fun.
