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Free Flight rule changes – for 2010
3.1.1 (a) (i) Definitions Free Flight
Purpose: To correct an omission
Insert in second last sentence of second paragraph. --- The use of the "40mHz" , 35mhz and--------
3.1.8.2 Recording Times
Purpose: To facilitate collection of results
Insert extra sentences to section (c) following the end of the first sentence and before the second sentence…… “A competitor's final flight must be entered on the score sheet by the recorder no later than 15 minutes after the close of the contest. Any fly-off flight necessary must be entered no later than 15 minutes after the conclusion of the flight.”……
3.1.10 The Plugge Cup
Purpose: To accord with the 2010 Calendar
Section (a) should read…… “together with two additional competitions at each of the eight area centralised events as nominated in the contest calendar.”
3.1.11 British Senior Free Flight Championship
Purpose: Correction of omission
(b) Insert after F1A, F1B and F1C … and the women's cup and junior events
at the Free Flight Nationals.
Purpose: To accord with 2010 calendar (event in late January)
(c) Change in first sentence from ---31st January to "31st December of previous year"
3.2 FAI Contest Regulations
Purpose: To include electric classes
3.2.2 (d) Change to: Competitors may use spare propellers,rubber motors, I.C. engines or electric motors. An I.C. engine or electric motor may not be used by more than one competitor in a particular contest.
Purpose: To reflect FAI practice
3.2.3 Change second paragraph to:
The set maximum flight time (except for F1Q) shall be incremented by two minutes on the flight time in the previous round, where the 'previous round' also includes the last flight of the event. For F1Q the maximum shall remain as for the previous round but the motor run shall be reduced by 5 seconds from the previous round, down to a minimum of 5 seconds. At any stage in the fly-off the Contest Director may modify these increments to accommodate the prevailing conditions or circumstances.
Insert after 3.5 Characteristics….. (Class F1C)
Purpose: To add F1Q to the short definitions of FAI classes
3.5.Q Characteristics of Electric Motor Driven Models, International Formula (Class F1Q)
Maximum weight of battery pack including connectors on the battery:
For NiCad and NiMH Batteries………………………………125 grams
For Li Batteries………………………………………………........90 grams
Maximum duration of motor run…………………………….20 seconds
Safety locks must be used to prevent unintentional restarting of motor(s)after the motor(s) have been stopped.
Timing of motor run:
The motor run is to be verified by the timekeeper check timing on the ground before flying. The timekeeper shall mark the flight card to affirm this ( it is only required that the ground timing procedure is carried out before the first flight). In addition the motor run shall be checked visually during each flight. If the model has not clearly stopped climbing under power after the allowed maximum motor run an over-run shall be declared.
3.7.3 Power Class (BMFA Power)
Purpose: To reflect performance improvement
Change category (iii) to read:
“For models not fitted with any moving trim surfaces other than DT: 9 seconds.”
3.13 Hand Launch Glider Class
Purpose: To reflect current practice in this short flight time class
Add to (c)
“(v) Flights do not have to be recorded on the score sheet after each is made (as per rules 3.1.8.2. (c)) but must be recorded on the score sheet at least at the conclusion of every third flight.”
3.49 Catapult Glider Class
Correct at end of 3.49 (c) : ……(ref 3.1.3). Should read : ……(ref 3.13)
3.42 E.30 Electric
Purpose: To reflect the reduced availability of Nickel based cells. This alternative has been flight tested and proved comparable to the Nickel based option.
Last line: Maximum battery size should read
Maximum battery size ………….3 x 50 mAh Nickel based cells
or ……………………………………………1 x 70 mAh Lithium based cell
3.48 Electric Open Power
Purposes:To move to a more appropriate position in the rule book. To reflect the availability of brushless motors and their performance vis-a-vis brushed.
Remove from present position in book.
Change Title to “Electric Class (BMFA Electric)”.
Change rule number to 3.7.4 and re-insert after 3.7.3 Power Class (BMFA Power)
Change rule 3.1.9.3 iii Open Electric to read “ BMFA Electric (3.7.4)”
Change rule content to read:
(a) Maximum total bare motor(s) weight……………………. 100 grams
(b) Motor run, maximum time from launch:
For Brushed motors…………………………… 25 seconds
For Brushless motors………………………….20 seconds
(c) Safety locks must be used to prevent unintentional restarting of motor(s) after the motor(s) have been stopped.
(d) Timing of motor run:
The motor run is to be verified by the timekeeper check timing on the ground before flying. The timekeeper shall mark the flight card to affirm this ( it is only required that the ground timing procedure is carried out before the first flight). In addition the motor run shall be checked visually during each flight. If the model has not clearly stopped climbing under power after the allowed maximum motor run an over-run shall be declared.