General Rules

Definition of a Radio Controlled Glider or Sailplane
A model aircraft in which lift is generated by aerodynamic forces acting on surfaces remaining fixed in flight, except control surfaces and which performs manoeuvres controlled by the pilot on the ground, using radio control.

Definition of a Radio Controlled Electric Sailplane (EAS)
Model aircraft in which lift is generated by aerodynamic forces acting on surfaces remaining fixed in flight, except control surfaces and which performs manoeuvres controlled by the pilot on the ground, using radio control. The power pack for the electric motor may not have any fixed connection to the ground or another model aircraft in the air.

The model must comply with general FAI limits
Maximum Surface Area (St) = 150dm square
Maximum Flying Mass = 5kg
Loading on St between 12 and 75g/dm square

Other restrictions may apply depending on the contest being run at the time.
A pilot should come prepared with both non-electric and electric models as described so that the Contest Director has an option to include electrics, depending upon the conditions or if electric gliders are going to be used throughout a particular event.
No fixed or retractable arresting device is allowed to slow down the model on the ground during landing, i.e. bolt, saw-tooth like protuberance, etc. The underside of the model must not have any protuberance other than the towhook and surface control linkages. The towhook must not be larger than 5mm in frontal width and 15mm in frontal height.
~ Contest ~
Mountain Gliding Australia - Aerobatics Championship
Rules and Regulations
Aircraft Configuration: The aircraft must have a conventional floor plan, i.e. single fuselage, one left and one right wing towards the front of the aircraft (can be fixed with ailerons, flaps, spoilers or be all moving), one stabiliser towards the rear of the aircraft or one left and one right stabiliser towards the rear of the aircraft (fixed with elevator/s or all moving) and one rudder.
(NOTE: The reason for the model restrictions above is to make the event as fair as possible for the participants. By keeping the models as close as practicable to being the same configuration but without dictating their design and/or brand, the judges' task of producing a fair and proper outcome will be made that much easier. For example, if a 3-metre composite glider were to compete against a 1 metre foam wing, the characteristics between these models could be so different that it could impede the judges' perspective to the point whereby it may be difficult to accurately differentiate the quality of the aerobatics manoeuvres between the two aircraft.)
Electric motor/s and gear configuration: The electric motor/s and accompanying speed controller/s and batteries or battery pack will have limited restrictions at this early stage of the event's evolution. Controlling the motor on the transmitter must be done via an 'on/off' switch and not the control sticks. It should be noted that the model needs to be capable of completing four rounds, each requiring a minimum total of 10 x 10 seconds bursts of the motor/s and one round with a minimum of 4 x 10 second bursts.
(Slope Aerobatics - a self-regulating contest: Unlike any other aeromodelling discipline, this particular slope aerobatics format is self-regulating to the point whereby model-type restrictions, including the model's power-plant, can be kept to a minimum. This is because the judges allocated window (the area designated for the pilot to perform the manoeuvres) is set up in such a way that an inapropriate model could have an adverse effect on the performance. For example, the best performing models in past aerobatics events have had a standard floor plan, that being a fuselage, wings, elevator rudder. The models in general have had wingspans of about two to two and a half metres, no ballast and weighed between 1.5kg and 2kg. Models built inside these parameters may lack the required momentum to perform all of the required manoeuvres and/or may be harder to see from the judges' position. Models built outside these parameters may lack the agility required to perform all of the required manoeuvres accurately. Regarding the model's power-plant arrangement, an over-powered model would not be an advantage because the model is not allowed to 'power' into a manoeuvre. The motor is merely used as a means to gain height when there is not enough natural life to do so. Certainly you need a required amount of speed for each manoeuvre but if too much speed is gained, the model may not be able to complete the manoeuvre within the judges allocated viewing window and therefore valuable points may be deducted.)
A pilot may fly any number of models during a contest and can exchange models during working time only if the aircraft being used at the time is damaged or malfunctions. In this situation, the pilot can re-join the other contestant/s in a suitable time-slot chosen by the Contest Director.
A pilot is permitted helpers.
The model can be relaunched during the rounds at the discretion of the Contest Director.
The Contest Director shall determine whether or not the conditions are suitable for flying.
Manoeuvres are to be flown in the order presented in these rules and only those completed within the nominated time (if one is set) will be scored. The pilot must announce the start and finish of each manoeuvre. However, no penalty will be given for forgetting this procedure. The Contest Director may modify or delete manoeuvres in adverse conditions. The optional manoeuvre (see list) must be nominated to the judges prior to performing the manoeuvre.
Whether or not one model or multiple models are flown in each time will be determined by the contest director.
A pilot shall nominate two optional manoeuvres of his or her choice per round, choosing one from each of the groups available in the following format (except for Round five):

Round One - groups 1 & 2 (k1.5 and k2)
Round Two - groups 2 & 3 (k2 and k2.5)
Round Three - groups 3 & 4 (k2.5 and k3)
Round Four - groups 1 & 4 (k1.5 and k3)
Round Five - 3 minute freestyle routine - pilot's choice

Note: Should more than four rounds be run, the format will recommence from the beginning.

Optional manoeuvres are not allowed to be repeated during the contest with the exception of the following rule: Should a pilot not wish to nominate a manoeuvre from either of the two groups available in a round, a manoeuvre from a lower group can be chosen. In this situation only, a manoeuvre can be repeated.

(Note: It shall be left to the discretion of the Contest Director as to whether flying conditions are suitable for continuation of a flight. A flight aborted under these circumstances may be continued when conditions improve. The time allowed for completion shall be the unexpired working time when the pilot receives the Contest Director’s decision plus a given time (if one is set) to gain height.)

1. Launch & 5 Point Ascending Rectangular Circuit = kf1
2. Two Consecutive Inside Loops = kf1
3. Slow Axial Roll - suggested 2 seconds minimum = kf1
4. Straight and Level Inverted Flight - 5 seconds minimum = kf1
5. Three Turn Spin = kf1
6. Two Stall Turns - in opposite directions = kf1
Optional Manoeuvre #1 to be nominated from the specified group below
Optional Manoeuvre #2 to be nominated from the specified group below
    - Basic Top Hat - no rolls = kf1.5
    - Barrel Roll = kf1.5
    - Circle = kf1.5
    - Extended Loop = kf1.5
    - Triangular Loop = kf1.5
    - Four Point Roll = kf2
    - Square Loop = kf2
    - Figure Eight = kf2
    - Inverted Circle = kf2
    - Eight Point Roll = kf2
    - Three Consecutive Axial Rolls = kf2.5
    - Reverse Cuban Eight - pull up to 45°, ½ roll, ¾ loop 45°, ½ roll, ⅝ loop to horizontal = kf2.5
    - Cuban Eight = kf2.5
    - Double Immelman - ½ inside loop, ½ roll, ½ outside loop, ½ roll = kf2.5
    - Inverted Figure Eight = kf2.5
    - Reverse Double Immelman - ½ roll, ½ outside loop, ½ roll, ½ inside loop = kf3
    - Figure M - ¼ loop to stall, ½ outside loop to stall, ¼ inside loop to horizontal = kf3
    - Two Outside Loops = kf3
    - Outside Inside Loop - roll to inverted, outside loop, roll to upright, inside loop = kf3
    - Three Turn Inverted Spin = kf3
9. Tri-Pattern -  axial roll, followed by an inside loop, followed by a figure 8 with 1st turn to the right = kf5
10. D Shaped Circuit and Landing - lg 1 upw lf, lg 2 crsw lf, leg 3 dwnw dcs, leg 4 180º turn upw, lg 5 land = kf1

Landing Procedure legend using the D-Shaped Circuit & Landing
(lg 1 upw lv, lg 2 crsw lv, leg 3 dwnw dcs, leg 4 180º turn upw, lg 5 land)
Leg 1 - upwind straight and level flight
Leg 2 - crosswind straight and level flight
Leg 2 - downwind, commence to descend
Leg 4 - 180° turn into upwind, continue to descend
Leg 5 - upwind, continue to descend and land

(Note: If the model’s primary control surfaces are rudder and elevator only (not ailerons and elevator) a pilot can replace the Slow Axial Roll with the Barrel Roll and replace the Straight and Level Inverted Flight with the Extended Loop. In the case of the Extended Loop, only the inverted part of the manoeuvre will be judged.)

Judges Viewing Window: A manoeuvre must be performed within a specified area as depicted in the diagram below. If it is not, the judges will downgrade the manoeuvre according to the severity of the inaccuracy.

General Procedures and Guides for Aerobatics Contests

Electric Powered Aircraft and Electric Assisted Sailplanes
When these aircraft are in use, the pilot is given a nominal time of 10 seconds to gain height using the motor/s before the start of each manoeuvre, after which time the pilot should clearly voice the words, “motor off”. The pilot must not turn on the motor again until after finishing that same manoeuvre. The Contest Director may vary the motor running time depending on the circumstances. The intent is to ensure that pilots perform their manoeuvres without any advantage from the motor, other than attaining a suitable altitude. If the Contest Director can achieve this by other means and keep within the spirit of the rules, setting a time may not be necessary.

Should a pilot turn on the motor after making it known it has already been turned off in readiness for a manoeuvre and/or has commenced a manoeuvre but not completed it, the pilot may be given a score of zero. Possible reasons for aborting a manoeuvre might be as follows:

Inclement weather or a sudden drop in lift
At risk of colliding with another aircraft
At risk of crashing one’s own aircraft
Endangering lives
Accidentally switching on the motor
Unforeseen circumstances

It will be at the discretion of the Contest Director to decide whether or not a second attempt at a manoeuvre will be allowed, depending on the circumstances at the time.

Flight Order
It is recommended that contestants be selected at random or by a draw except perhaps for novices. They could be placed at random, towards the end of the flight order.

Guides and Templates for running Slope Soaring Contests
This manual is available in PDF format to download from this website. It includes templates for scoresheets, manoeuvres cards, progressive scoreboards, judges scoreboards and other useful guides. These are helpful tools designed to assist the Contest Director, judges and pilots in the running of contests.

Electronic Scoring Program
A Microsoft Excel scoring program is available to download from MGA’s website. The k-factors have been programmed into the scoring system and the overall scores, including the placings, are progressively tallied.


~ Contest ~

One On One Mind Twister

General Rules

Two contestants to fly against each other in a round robin format. The nominated challenger to perform two manoeuvres of their choice from the list provided. The defender is then required to perform the same two manoeuvres. Each contestant is allowed to strike out four manoeuvres which they do not want to include.

Extra points will be awarded for the landing provided the conditions are safe to do so.
The D-Shaped Circuit & Landing is to be used unless otherwise state.

e.g. Leg 1 - upwind straight and level flight
       Leg 2 - crosswind straight and level flight
       Leg 2 - downwind, commence to descend
       Leg 4 - 180° turn into upwind, continue to descend
       Leg 5 - upwind, continue to descend and land

Scoring Guidelines
Contestants can score a possible 3 points for a winning manoeuvre, 1 point for a loss and 2 points for a draw.

The overall winner is to be decided from the tally of points in each heat.

Placings: - 1st 2nd and 3rd in each section.

Judging format to be decided on the day. It may be either a one, two or three judge format with the same judges, or a rotational format, with all of the contestants judging. Each judge is to decide which contestant’s manoeuvre is performed the best. A judge may wish to mark a provisional score out of 10 for each of the two contestants, if this helps to obtain a fairer outcome.

Judges should discuss the outcome with each other.

Judging Guidlines
The Downgrading Guidelines listed below are a broad outline for most of the manoeuvres:

Flightpath on entry not a distinct horizontal line
Precision of the manoeuvre not as required
Flightpath on exit not a distinct horizontal line
Entry and exit flightpaths not at the same altitude
Aircraft’s flightpath changes heading by more
than 15 degrees to that of the original heading
Presentation of the manoeuvre not centred

The object is for either contestant to think carefully on the selection of manoeuvres they will either ask or be asked to perform. A contestant’s judgment on both their own and their oppositions limitations, are crucial to the final outcome. A contestant does not have to announce which manoeuvre he or she will perform, except to the judges prior to performing the manoeuvre.

Pre-flight Briefing
For those who wish to participate, a pre-flight practical workshop should be held before each competition, to ensure all contestants are clear on the requirements.

Novices may use a helper to launch, stabilise their aircraft, be coached and land. However, should a helper take control of the aircraft during the time any given manoeuvre is being performed, i.e. between the time the words, “commence” and “complete,” are announced, then no score will be given for that manoeuvre - this includes the landing.

Manoeuvre - Open
* Two Consecutive Loops    * Axial Roll
* Inverted Flight - 5 Seconds    * Three Turn Spin
* Two consecutive Stall Turns    * Outward Figure Eight
* Rectangular Pattern    * Triangular Pattern
* Two Outside Loops    * Double Immelman
* Three Consecutive Rolls    * Reverse Double Immelman
* Cuban Eight    * Flat Top Hat - no rolls
* Four Point Roll    * Extended Loop
* Three Turn Inverted Spin    * Snap Roll
* Inverted Circle    * Inverted Figure Eight
* Barrel Roll  - civilian    * Split S
* Inverted Three Turn Spin    * Eight Point Roll
* Three Second Knife Edge

* Loop    * Stall Turn
* Barrel Roll - civilian    * Two Turn Spin
* Rectangular Pattern    * Flat Top Hat - no rolls
* Extended loop - 3 seconds inverted    * Snap Roll


~ Contest ~

Cross Country Slope Soaring

 General Rules

Pilots must:
.................... walk, not run
.................... be standing inside in a designated area before they can land the model
.................... land their model inside a designated area
.................... re-launch their model inside a designated area

If the model is damaged and not able to be flown, the pilot will forfeit that round


*  Course to include 6 stations and take approximately 40 minutes to complete.
*  10 points added to your score on arrival for every 5 minute blocks completed up to the first 40 minutes.
*  1 minute or 1 second increments do not apply.
*  10 points will be deducted from your score for every 5 minute block completed over the designated finishing time of 40 minutes.
*  Each trivia question answered correctly scores 10 points.
*  Play-off for equal scores.
Example a: A finishing time of 40 minute equates to 8 x 5 minute blocks (par finish) giving a sub-total of 80 points. All 6 questions answered correctly, at 10 points per question, gives a sub-total of 60 points. Total Score = 140.
Example b: A finishing time of 35 minutes equates to 7 x 5 minutes blocks (finishing 1 block under par) giving a sub-total of 90 points. 5 out of 6 questions answered correctly, at 10 points per question, gives a sub-total 50 points. Total Score = 140.
Example c: A finishing time of 45 minutes equates to 9 x 10 minute blocks (finishing 1 block over par) giving a sub-total of 70 points. All 6 questions answered correctly, at 10 points per question, gives a sub-total of 60 points. Total Score = 130.