5.12 CLASS F3S – RADIO CONTROLLED AEROBATIC POWER JET MODEL AIRCRAFT
5.12.1
Definition of a Radio Controlled Aerobatic Power Jet Model Aircraft
Model aircraft, but not a helicopter, which is aerodynamically manoeuvred by control surface(s) in attitude,
direction, and altitude by a pilot on the ground using radio control.
5.12.2
General Characteristics of a R/C Aerobatic Power Jet Model Aircraft
a) The R/C Aerobatic Power Jet Model Aircraft shall use as a propulsion device either
a) turbo jet/s or
b) ducted fan/s.
Ducted fans my use piston engines or electric motors as a power source.
b) The number of model aircraft eligible for entry is two (2).
c) Paragraph B.3.1.a) of Section 4B (Builder of Model Aircraft) is not applicable to class F3S.
d) For power device limitations, noise rule, and radio equipment: See 5.1.2
e) Noise limits apply to model aircraft with piston engines only.
5.12.3
. Definition and number of helpers
See 5.1.3
5.12.4
Number of flights
Each competitor has the right to three official flights.
5.12.5
Definition of an attempt
See 5.1.5.
5.12.6
Number of attempts
See 5.1.6.
5.12.7
Definition of an official flight:
See 5.1.7.
5.12.8
Marking:
a) Each manoeuvre may be awarded marks, in half (0.5) increments, between 10 and 0 by each of the
judges during the flight. These marks are multiplied by a coefficient that varies with the difficulty of
the manoeuvre. Any manoeuvre not completed shall be scored zero (0). Manoeuvres must be
performed where they can be seen clearly by the judges. If a judge, for some reason outside the
control of the competitor, is not able to follow the model aircraft through the entire manoeuvre, he
may set the «Not Observed» (N.O.) mark. In this case, the judge’s mark for that particular
manoeuvre will be the average of the numerical marks given by the other judges.
b) Centre manoeuvres should be performed in the centre of the manoeuvring area while turn around
manoeuvres should not extend past a line 75 degrees left and right of centre. Also, manoeuvres
should be performed along a line of approximately 150 to 200 m (depending on the size of the model
aircraft) in front of the competitor.
c) Infractions to this rule will be cause for downgrading by each judge individually and in proportion to
the degree of infraction.
d) The manoeuvring area will be clearly marked with white vertical poles, a minimum of 100mm in
diameter and a minimum of 4m high, placed on centre, and at 75 degrees each side of centre. Flags
and/or streamers of contrasting colour should be mounted on the poles to improve visibility. White (or
contrasting) lines originating at the competitor’s position and extending outward at least 50m will also
be used to mark the centre and extreme limits (75 degrees left and right of centre) of the
manoeuvring zone. Audible and visual signals to indicate violations of the manoeuvring zone are not
to be employed.
e) The judges shall be seated no more than 10m, and not less than 7m behind the competitor’s position
(the apex of the 75 degree lines) and within an area described by the extension of the 75 degree
lines to the rear of the competitor.
f) If a model aircraft is in the opinion of the safety steward or the judges, unsafe or being flown in an
unsafe manner, they may instruct the competitor to land the model aircraft.
g) The scores given by each judge for each competitor shall be made public at the end of each round of
competition.
Class F3S R/C Aerobatic Jet Model Aircraft
SC4_Vol_F3_Aerobatics_13 Effective 1st January 2013 Page 70
5.12.9 Classification
:
a) For every competitor the individual result of each round is normalised to the points of the best
competitor of that round as follows:
Points
X = points awarded to competitor X
S
X = score of competitor X
S
W = score of winner of round
b) The normalised points shall be recorded to the first decimal number.
c) The final classification will be done considering the sum of the scores of the best two attempts.
d) In order to decide the winner when there is a tie, the discarded flight score shall be taken into (a)
account.
e) The TBL statistical averaging system is not to be applied
5.12.10 Judging
:
a) The criteria to be applied for judging the manoeuvres in this class, are identical to class F3A.
However, the judges will have to consider the dimensions, inertia and speed of the jet model aircraft.
b) The organiser must appoint a panel of least three up to five judges, preferably. When five judges are
used the lowest and highest scores for each manoeuvre will be discarded.
5.12.11 Organisation for Aerobatic Power Jet Model Aircraft Contests
a) For transmitters and frequency control, see section 4B, paragraph B.11.
b) The flight order for the first round will be determined by draw. In case of frequency conflicts the flight
order may be changed by the contest director. For second round, the flight order will start at 1/3
down the list. For third round, the flight order is the reversed ranking after second round.
c) During the flight, the competitor must stay in front of the judges in the designated area and under the
supervision of the Flight Line Director and safety steward.
d) The prohibited flying area is observed by the judges. If the safety line is crossed the flight will be
scored zero points.
e) Competitors must be called at least ten (10) minutes before they are required to occupy the starting
area.
5.12.12 Execution of manoeuvres
a) The manoeuvres must be executed during an uninterrupted flight in the order in which they are listed
in the rules.
b) The competitor may make only one attempt at each manoeuvre during the flight.
c) The pilot has six (6) minutes to start his motor, and five (5) minutes to complete his flight. The six
minutes start when the competitor is given permission to start his motor. The last minute of
preparation time (ie after the expiry of five minutes) must be announced to the competitor. The five
minute flight time starts with either the expiry of the six minute preparation time or when the model
aircraft starts the take-off sequence, whichever occurs first.
d) The model aircraft must take-off and land unassisted, that is, no hand launched flights. If any part of
the model aircraft is dropped during the flight, scoring will cease at that point and the competitor must
be instructed to land his model aircraft immediately.
e) The direction of the manoeuvres is determined by the heading of the model aircraft during the takeoff.
After completion of manoeuvre 13 the model aircraft has to be landed immediately. The flight
ends when the landing sequence is completed.
f) Scoring will cease with the expiry of the five-minute flight period.
cont/…
Class F3S R/C Aerobatic Jet Model Aircraft
SC4_Vol_F3_Aerobatics_13 Effective 1st January 2013 Page 71
5.12.13 Schedule of manoeuvres
K-Factor
Take-off sequence, including single free pass (not judged, not scored)
01: Triangle loop with full roll on top 3
02: Half reverse Cuban 8 with 2/4-point roll 2
03: Opposite knife-edge 5
04: Immelmann with full roll, exit inverted 2
05: Half reverse Cuban 8 from top with 2/4-point rolls, exit inverted 4
06: Half square loop on corner 2
07: Figure 9 with full roll up 3
08: Pull-push-pull humpty bump with half roll down 3
09: 45 degree ascent with 4/8-point roll, exit inverted 3
10: Half positive loop 1
11: Half slow roll, 2/4-point roll opposite 5
12: Pull-pull-pull humpty bump with half roll down 3
13: Loop with full roll integrated on top 90 degrees 4
Landing (not judged, not scored) ------------------
Total K 40
For the description of the manoeuvres, judging notes, and Aresti diagrams, see Annex 5X.
F3S – RADIO CONTROLLED AEROBATIC JET MODEL AIRCRAFT
DESCRIPTION OF MANOEUVRES
S-15.01 Triangle with roll
From upright, pull through a 1/8 loop into a 45 degree upline. Pull through a 3/8 loop into a horizontal line perform a roll, pull through a 3/8 loop into a 45 degree downline. Pull through a 1/8 loop, exit upright.
S-15.02 Half Reverse Cuban 8 with consecutive two ¼ rolls
From upright, pull through a 1/8 loop into a 45 degree upline, perform consecutively two ¼ rolls, pull through a 5/8 loop, exit upright.
S-15.03 Opposite Knife-edge Flight
From upright, perform a 1⁄4 roll to knife-edge flight, perform a 1/2 roll in the opposite direction, to knife-edge flight, perform a 1⁄4 roll, exit upright.
S-15.04 Immelmann with roll
From upright, pull through a ½ loop, immediately followed by a roll, exit inverted.
S-15.05 Reverse Cuban 8 with two consecutive ¼ rolls
From inverted, pull through a 1/8 loop into a 45 degree downline, perform consecutively two ¼ rolls, pull through a 3⁄4 loop into a 45 degree downline, perform consecutively two ¼ rolls, pull through a 5/8 loop, exit inverted.
S-15.06 Half Square Loop on Corner
From inverted, pull through a 1/8 loop into a 45 degree downline, pull through a ¼ loop into a 45 degree downline, pull through 1/8 loop, exit upright.
S-15.07 Figure 9 with roll up
From upright, pull through a 1/4 loop into a vertical upline, perform a roll, pull through a 3/4 loop, exit upright.
S-15.08 Pull-push-pull Humpty Bump with half roll down
From upright, pull through a 1/4 loop to a vertical upline, push through a 1⁄2 loop into a vertical downline, perform a half roll, pull through a 1/4 loop, exit upright.
S-15.09 45 ° Upline with four consecutive 1/8 rolls
From upright, pull into a 45 degree upline and perform consecutively four 1/8 rolls, pull through 1/4 loop, exit inverted.
S-15.10 Half Loop
From inverted, pull through a 1/2 loop, exit upright.
S-15.11 Roll Combination with consecutive half slow roll, and in opposite direction two ¼ rolls
From upright, perform consecutively a ½ slow roll, a ¼ roll in opposite direction, a ¼ roll, exit upright.
S-15.12 Pull-pull-pull Humpty Bump with half roll down
From upright, pull through a 1/4 loop into a vertical upline, pull through a 1/2 loop into a vertical downline, perform a 1/2 roll, pull through a 1/4 loop exit upright.
S-15.13 Loop, with roll integrated over top 90 degrees
From upright, pull through a loop while performing an integrated roll in the top 90 degrees of the loop, exit upright.
Este comentário foi removido pelo autor.
ResponderEliminar