SOUTH NORFOLK MODEL FLYING CLUB
SCALE MODEL COMPETITION
Only scale models can be entered into this competition to which
there are two elements and competitors can enter one or the other
or both of them.
STATIC SCALE MODEL COMPETITION.
Any scale model can be entered into this competition where it will be judged by
the club members present on the basis of how well it conforms to the full size
aircraft it emulates taking into account the overall appearance, the build quality
and the level of detail Included. Each member will choose and vote for the
model they judge as being the best.
Because the competition is open to all scale models; foam, ARTF, those built by the
club member entering the model, from a plan or kit and those purchased already
built and ready to fly, each entry must display a notice saying into which category it
fits; i.e foam, ARTF, kit, plan or RTF.
To try to provide as level playing field as possible and reflect the amount of work
and skill in bringing each model to flying condition, each category is given a ‘K’
number as follows; Foam = 1; ARTF = 2; Kit/Plan = 3 and RTF = 1. The judge or
the Events Officer will collect the members choices, count up the number of votes
for each model entered and apply the ‘K’ number so for example, 3 choices for a
foam or RTF model will score 3 x 1 = 3, 3 choices for a ARTF model will score 3 x 2
= 6 and 3 choices for a kit/plan built model will score 3 x 3 = 9.
2. SCALE AEROBATIC FLYING.
Any scale model can be entered into this competition which involves your
model executing a number of manoeuvres according to the flying schedule
which is devised to reflect the flying abilities of scale models. The schedule is
shown below. Manoeuvres 6, 7 & 8 are chosen from the 11 options given and
this is so you can choose the manoeuvres best suited to you and your model.
Scale Flying Schedule
1. Take Off
Take-off in a scale-like manner appropriate to the aircraft
being flown, take-off is completed after the model has turned 90° at an
appropriate height.
2. Rectangular Circuit. At constant height with 90° corners.
3. Figure of Eight.
Crossover to be centred on the pilot/judges and away
from the flight line.
4. Procedure Turn (P Turn).
The model approaches in straight and level
flight parallel to the flight line and when approaching the pilot/judges
makes a one-quarter circle turn in a direction away from the flight line.
This is followed by a 270° turn in the opposite direction completing the
manoeuvre on the reciprocal track on the original approach line. The
manoeuvre must be commenced so as to place the point where the
model changes from the 90 degree turn to the 270 degree on a line
which is at a right angle to the direction of entry and passes through the
centre of the pilots/judges line.
5. Chandelle.
From a straight and level flight the model passes the
pilot/judges and then performs a 180 degree constant rate climbing turn
in a direction away from the pilot, resuming straight and level flight in
the opposite direction. The rate of climb should be commensurate with
that of the prototype.
6. Optional Manoeuvre
7. Optional Manoeuvre
8. Optional Manoeuvre
9. Overshoot or aborted landing.
The pilot should perform a higher than
normal landing approach on low throttle, using flaps if applicable. On
reaching the centre of the landing area, approximately in front of the
pilot/judges at a height of about 10’ power is applied to check the
descent and normal flying speed and altitude attained. The aim of the
manoeuvre is to simulate an aborted landing due to a higher than
normal landing approach.
10. Approach and Landing.
From normal level flight, the model smoothly
descends while throttling back and begins the approach with flaps and
gear down, when applicable, and touches down with no bouncing and
rolls to a stop.
Manoeuvres 6, 7 and 8 are optional and may be selected from the following list:-
Optional Manoeuvres :-
Wing Over.
Starting from straight and level flight and parallel to the flight line,
after passing the pilot’s/judges position a smooth climbing turn is commenced
away from the flight line. At the apex of the turn the bank should be at least
60 degrees. The nose of the model then lowers and the bank comes off at the
same rate that it went on with the model continuing on a mirror image of the
entry flight path and recovering to straight and level flight but in the opposite
direction. A low powered aircraft may execute a shallow dive at full throttle in
order to pick up speed before commencing the manoeuvre.
Loop.
Entry and exit height to be the same. The throttle may be reduced at
the top of the loop as appropriate to the subject type and opened if necessary
when normal flight is resumed. Low powered aircraft may execute a shallow
dive at full throttle in order to pick up speed before commencing the loop.
Split-S or Reversal.
From height and straight and level flight in front of the
pilot/judges, the model performs a half roll and when inverted performs half of
a circular inside loop (commensurate with the performance of the subject
type) and resumes straight and level flight on a flight path opposite to that of
the entry. The throttle should be closed at the inverted position, as
appropriate to the subject type, and opened when normal flight is resumed.
Roll.
From straight and level flight and in front of the pilot/judges, the model
rolls at a constant rate through one complete rotation and resumes straight
and level flight on the same track. Low powered aircraft may execute a
shallow dive at full throttle, in order to gain speed, before the manoeuvre.
Immelmann Turn.
From straight and level flight and in front of the
pilot/judges, the model pulls up into the first half of a circular loop
(commensurate with the performance of the model) and when inverted,
performs a half roll before resuming straight and level flight on the opposite
track. Low powered aircraft types may commence the manoeuvre by
executing a shallow dive at full throttle in order to pick up the necessary
speed.
Spin (3Turn).
From straight and level flight, at height, into wind, the model
decelerates into a stall and commences the spin through three turns and
recovers to level flight on the same track as the initial flight direction. The spin
should be in front of the pilot/judges and during descent the model may drift
with the wind.
Half Cuban Eight.
On the flight line and in front of the pilot/judges, the model
pulls up into a circular inside loop until 45° nose down, then with a half roll,
the model pulls out level. Low powered aircraft may execute a shallow dive at
full throttle before the manoeuvre.
Half Reverse Cuban Eight.
On the flight line and in front of the pilot/judges,
the model pulls up into a 45° climb. At a suitable height the model performs a
half roll to inverted. Following a pause, a half inside loop is executed to bring
the model back to straight and level flight travelling in the opposite direction.
Low powered aircraft may execute a shallow dive at full throttle before the
manoeuvre.
Stall Turn.
The model aircraft starts in level flight, pulls up to a vertical flight
path until it comes to a stop. At which point the model yaws through 180
degrees in a direction away from the flight line, then dives vertically and finally
recovers straight and level on a flight path in the opposite direction to the
entry. Entry and exit should be at the same height. The manoeuvre may be
flown at either end of the circuit, upwind or downwind as the pilot chooses.
Extend & Retract Landing Gear or Flaps.
The model approaches the
landing area in straight and level flight at a height not exceeding 40’ and in
front of the pilot/judges, extends the landing gear or flaps. The model then
executes a 360° turn (circle) in a direction away from the flight line. After the
turn and when again directly in front of the pilot/examiners, retracts the
landing gear or flaps and the model then climbs away in straight flight.
Side Slip.
The model commences the manoeuvre in level flight by reducing
power on the base leg, it then turns onto a higher than normal final approach
as if to land. As the model enters this turn it starts a side slip by the
application of opposite rudder, achieving a yaw of at least 20 degrees off
track. A marked loss of height must be apparent whilst maintaining final
approach speed. The aim of the side slip, if continued, would be to effect a
landing in front of the pilot/judges. However, before reaching the pilot/judges
the side slip is corrected, normal flying resumed and the model carries out an
overshoot/go-around from below 10’ before climbing away. The purpose of
this manoeuvre is to demonstrate a marked loss of height on the final
approach without an excessive build up of speed or the use of flaps.
You can download and/or view a copy of the flying schedule here.
