Thank you to Bruce Edwards from U.K. for help with english terminology and other lanquage problems.

Palo LISHAK, November 11-th 2005

Complete english version coming soon(I hope). Basic principle of new propositions in english you can see here>>>

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We recommend two classes for electric sailplanes:

- ENTRY CLASS
- F5J

For both classes we recommend:

1 - No limit on number or type of cells, all types (NiCd, NiMH, LiIon, LiPol...) are allowed ,
2 - Any type of motor allowed
3 - No limit on motor run time
4 - Only one motor run per flight permitted
5 - Working time 10 minutes (600 seconds = 600 points)
6 - Flying task - As long as possible in the working time
7 - Bonus for precision landing (same as in F3J)
8 - Penalty for duration of motor running


For scoring we measure:

- imput power before start (measured value " w ")
- flying time of the model (measured value "G")
- motor running time (measured value"M")
- distance of the model from landing point (measured value "L")

For interpretation of measured data we must use following formula:

R = G + L - M . w/W

R= result in round (points)
G= flying time from start to landing (seconds=points)
L = poits for precise landing (points)
M = motor running time (seconds=points)
w= imput power of power unit before start (Watt)
W= value of standard imput power (Watt) *

*/
- for "entry class" we recommend 100 W as standard imput power, 200 W max.
- for F5J we recommend 500 W as standard imput power, 1000 W max.

Note:
One example of WATTMETER for modellers with memory you can see here (HiBox)

EXAMPLE 1 (entry class):

I have Sensor-plus model, 2000 mm wingspann, S400 motor, gear 3:1, 8 cells GP1100.....
I have input power with hot accus (measured before start) 110 W
I use motor for 35 seconds
I have total flying time 8 minutes and 50 seconds (530 seconds)
Landing - distance from LP no more than 2 m (95 points)

My result is
R= 530 + 95 - 35 x 110/100 = 530 + 95 - 35 x 1,1 = 625 - 38,5 = 586,5 points

EXAMPLE 2 (entry class):

I have Sensor-plus model, 2000 mm wingspann, MEGA 16/15 motor, gear 4:1, 7 cells GP1100.....
I have input power with hot accus (measured before start) 195 W
I use motor for 25 seconds
I have total flying time 9 minutes and 15 seconds (555 seconds)
Landing - distance from LP no more than 5 m (80 points)

My result is
R= 555 + 80 - 25 x 195/100 = 555+ 80- 25 x 1,95 = 635 - 48,75 = 586,25 points

EXAMPLE 3 (F5J):

I have Sensor-plus model, 2000 mm wingspann, CYCLON MINI ELITE motor/gear, 10 cells GP1100.....
I have input power with hot accus (measured before start) 420 W
I use motor for 14 seconds
I have total flying time 9 minutes and 10 second (550 seconds)
Landing - distance from LP no more than 1 m (100 points)

My result is
R= 550 + 100 - 14 x 420/500 = 555+ 100- 14 x 0,84 = 655 - 11,76 = 643,24 points

EXAMPLE 4 (F5J):

I have TANGO model, 2600 mm wingspann, AXI 2826 motor, 16 cells GP1100.....
I have input power with hot accus (measured before start) 725 W
I use motor for 16 seconds
I have total flying time 9 minutes and 35 seconds (575 seconds)
Landing - distance from LP no more than 3 m (90 points)

My result is
R= 575 + 90 - 16 x 725/500 = 575 + 90- 16 x 1,45 = 665 - 23,2 = 641,8 points

Palo LISHAK, RIVA models hobby team

November 2005