Committee:

Chairman - Jan Sime : Vice Chairman - Gordon Browne : Secretary -Caretaken by Jan Sime & Gordon Browne : Treasurer - TBA

Representatives:

HTL - Gordon Browne : Bill Voss - Dennis Bird : Postals - Jan Sime : F3B - TBA : F3J - Ian Sime : F3K - Shaun Mileson : F5J - Ivan Williams : 2 Meter/New Commers - Shaun Mileson : Slope - Izak Theron (Gauteng) Kevin Farr (WC) Rus Conradt (KZN) : Cross Country - Chris Adrian


Calendar: Jan Sime & Gordon Browne


29 January 2010

Notice of 2011 F3K Team qualification process

The 2011 F3K World Championships will be hosted in Arboga, Sweden - the FAI to advise the competition dates.

The selection is open to all SAMAA members in good standing and who have at least an MGA Solo or higher Thermal rating.

The only compulsory event wil be MGA RC Soaring National Championships - the results from the best 2 of the 3 other events to be used for ranking purposes. The top 3 ranked pilots will automatically qualify for the team, the 4th rankled pilto as 1st non-travelling reserve, etc. The pilots will nominate their Team Manager & the MGA will approve the nomination based on the existing National RC Soaring Team Selection process.

Prior to ratification by the MGA, each team member will be required to agree the SAMAA Team Selection - Individual Undertaking (SAMAA MOP PO.8). Note that during qualification and Nationals that the decision of the CD is final.

The venues for these events will be announced closer to the time:

Qualifier 1: 21 & 22 March 2010
Qualifier 2: 10 & 11 July 2010
Qualifier 3: 6 & 7 November 2010
Nationals: 24 - 26 September 2010

Each event will be held over to the spare day in case of bad weather

For more information please contact Stephane du Ponsel on 074 115 2891, or email as listed above

Fly Safely

Notice of 2011 F3B Team - qualification & trials

The 2011 National F3B Team selection process is open to all SAMAA members in good standing, and who have a MGA Solo or higher Thermal rating.

The 2011 F3B team selection follow the previous years process agreed in 2008. Three events will be scheduled (refer to 2010 MGA calendar), where the first 2 events are considered qualification rounds. The individual pilots achieving the top 10 results wil be invited to participate in the final Team Trials event.

The results of the pilots best qualification event & team trials result will be used to determine an overall ranking. The top 3 ranked pilots will automatically qualify for the team. The top 4th pilot as 1st non-travelling reserve, etc.

All pilots intending to participate in the team trials are required to agree to the SAMAA Team Selection undertaking (SAMAA MOP PO.8 Team Selections - Individual Undertaking) prior to the team trials (to be collected by the Team Trials CD). During qualification & team trial events, the decision of the CD is final.

Good luck & safe flying

27 January 2010

Ode to Alan

Once upon this earth we are bound,
By gravity far and wide and loud,

We make the mistake of being above,
And try insist on being the birds above.

To this we throw our item of love and hope,
And pray above it will stay afloat,

With luck and care and careful guiding,
It drifts and bobs without a hiding,

Then gravity says all is not wright,
And takes a hold with glee and smite,

We aim, we glide, we fly, we cringe,
To finish at last and not to whinge,

To at last land with dignity and style,
and miss the bloody spot by a mile.


(Simon Said)

26 January 2010

2010 MGA calendar

Posted on behalf of Evan. Click on the image to get a bigger view.

25 January 2010

ETB League result

Hi All here are the results from Sunday. Click on the table to get an enlarged view



20 January 2010

2010 MGA Classes

Hi,

Some discussion has arisen with the definitions of the different classes within MGA sanctioned competitive events. I trust this will serve to address these queries.

Model Class

  • 2M - a RC glider for which the "projected" wing span does not exceed 2,000 mm. Unlimited control surfaces are permitted
  • 2MRE - a subclass of the 2m glider, with the same wingspan limitation & also limiting control surfaces to Rudder & Elevator only
  • RES - an RC glider which only uses Rudder, Elevator & Spoiler control surfaces. There is no limitation on wingspan
  • Open - any FAI class RC glider model

Pilot class
  • As per the FAI / SAMAA definition, a Junior would be any individual pilot who is not older than 18 years on 1 January of that calendar year. This status is maintained until 31 December of that year
  • The MGA have elected to introduce the "rookie" class for 2010. This is to encourage people who by 1 January of the calendar year had never flown in any competitive RC Gliding/Soaring event before, and forms a sub-class to the events sanctioned by the MGA. Notice that the status is maintained for 1 calendar year from 1 January until 31 December as per Junior.
  • A senior pilot is also as per the FAI / SAMAA definition and refers to all pilots who are not within the other class(es).

Launch class
  • Winch launch is considered to be roughly similar to the FAI F3B class, where an electrical motor is used to pull a length of monofilament chord, accelerating the model RC glider into the sky. Typically winch launches require the launch line not to exceed 200 metres from the turnaround to the release point (parachute/ring/loop) although some events will specify variations on this.
  • A towed launch requires two towmen (two for safety reasons) instead of a winch, who pull the model RC glider into the sky. This is roughly based on the F3J class, where the line length does not exceed a total of 150 metres. Local events may specify variations to the line length.
  • A bungy launch uses a combination of a line & an elastic chord, which stretched should not exceed a total of 200m or as per local competition rules.
  • Electric launch (this is different to the Electric Extreme class were motor restarts are permitted) uses an electric motor to power the model to a height of approx 200 metres whereafter the motor is automatically cut by an onboard electronic circuit & may not be restarted
  • Hand launch/Discuss launch is used where the glider is thrown into the sky by an individual (usually the pilot themselves)

Should you have any further suggestions or feel that any of the above explanations are not sufficiently clear, please do not hesitate to contact the MGA or discuss this via the MGASA forum.

Fly safely

19 January 2010

Postal Rules 2010

The MGA Postal Thermal Contest
Revised for 2013



Introduction
The Postals competition is a typical “thermal duration” competition, which includes a restricted launch, defined flight task and scored landing. The Postals competition attempts to place everyone on an equal footing, but permits “home ground” advantage. This competition is considered the ideal development and promotion tool of the Model Gliding Association (MGA) Special Interest Group.

To further encourage participation, 2010 sees the addition of electrical powered glider models and encouragement for clubs to bring new pilots into the sport with low cost 2M models.

Climbing the Postals ladder is part of the fun, sliding down the ladder is a definite indication that you aren't doing enough flying.

Dates1. The contest consists of four rounds, flown on the first two weekends in February, May, August and November, the four scores giving the total for the year.
2. Each pilot may make only two attempts to record a score during each round. These may be on any day of the two weekends but, once started (stopwatch running on first flight), the pilot is committed to completing that day’s score for one of the two submissions. Note that only one attempt per day is permitted.
3. The highest score of the two attempts will be entered as the score for that round.
4. The club score does not have to be recorded by pilots on the same day but must be scored from the same venue.

Flights
5. Each entrant is entitled to FIVE (5) flights, which must be flown consecutively (allowing for legitimate reflights, or test flights which have to be nominated before launch)
6. All FIVE (5) flights, count towards the pilot’s round score.
7. Timing must always be performed by someone other than the pilot.

Launch
8. Launching may be by one of the following mechanisms:
· electric winch (max available line from turnabout to ’chute 200 m)
· bungee (200 m maximum stretched length)
· 200 m hand tow, and two towmen
· electric powered (the motor may only be used once for launching in a window of 30 seconds maximum and limited to a launch height of 200m - an onboard altitude limiting device should be used to achieve this)

Relaunch9. A relaunch may be called for if the line breaks, or the model pop s off and “re-launch” is called before the parachute touches the ground . The flyer must then land and relaunch as quickly as possible – if the parachute touches the ground before relaunch is called, then the flight will count.
10. A relaunch may be called by the pilot if the electric motor malfunctioned during the 30 seconds launch window.
11. Once relaunch is called by the pilot, the flight is immediately cancelled even if the model continues to be flown.
12. If any part comes off a model during launch or in flight , then the pilot may request a relaunch.

Models13. There is no restriction on the number of models an entrant may use in the course of the contest.
14. The models will be classified into one of the following classes:
2M = Model with a projected wingspan not exceeding 2000 mm and any number of controls
RES = Model with any wingspan but controls are limited to Rudder, Elevator and Spoiler
Open = Any other Model

Scoring15. Scoring is as for Task A in the (old) F3B rules, i.e. to a precise six minutes and a landing bonus of 100 if the model’s nose is within one metre of the spot
16. The flight time is taken from the moment the model leaves the line/electric motor cuts out, until it comes to rest
17. The landing bonus is measured after the model has come to rest and is reduced from 100 by 5 points for each metre beyond the spot (e.g. 95 points if the distance to the spot is from 1 metre to before 2 metres) down to 30 points or within 15 metres.
18. The maximum score per flight is 460 points and 2300 points per round.
19. A single table of results will be produced quarterly and will include details of the model class and pilot class.
20. The club score shall consist of the top four individual scores posted for the club per round. Each pilot can only enter one score towards the club total per round.
21. In the Unlimited 2M Club sub-event, each club has the opportunity to register any number of 2M scores for the quarter (but these must be from unique pilots) and will be kept separate from the individual & club competition. The MGA will sponsor a 2M glider (Tsotsi) as prize to the winning club as part of its “Development” initiative at the MGA’s end of the year function.




Submission of Scores22. Scores are to be sent to the Postals Representative & must include:
· Club
· Pilot name
· Pilot Class (Senior, Junior, Rooky)
· Model Class (2m, RES, Open, Electric)
· Total score (only, no round by round times, etc.)
· Model
· Span
· Launch method
23. Please submit all scores to the Postal Coordinator, Jan Sime — by e-mail to 1jansime@gmail.com

24. These scores should be in the first Wednesday following the second Postals weekend of the designated month, or you will receive a zero score!
25. Scores not specifying pilot class will assume “Senior”, and similarly scores not specifying model class will assume “Open” – there will be no retrospective changes permitted
26. Scores not specifying the model, wingspan & launch method will be withheld from the table

13 January 2010

2M Challenge for 2010

Dates
The 2010 2M Challenge will consist of four rounds, on the following dates:
· Sunday 7 February (SGC)
· Sunday 28 March (ETB – TBC)
· Sunday 2 May (BERG – TBC)
· Sunday 15 August (SGC)

Basic Format/Structure
2m RE Glider
200 m Winch Launch
3 Pilots per team
8 Minutes working time
6 Minutes flight time
Unlimited number of launches within working time (last flight counts)
NOTE! If you intend using your scores for the National Postals as well, you will have to abide by those relaunch rules!

Categories
There will be three categories namely Junior, Rookie and Senior. Refer to the MGA definition of pilot class for explanation.

Models
The aircraft must be a RC glider as defined by the MGA — no on-board propulsion of any type will be allowed.
There will be only one model class namely “2 Meter, Rudder Elevator Only” (G2K).
The only two control functions allowed are rudder and elevator (V-tails will be allowed).
The maximum allowable span is 2 metres projected span. This implies that the glider wing should be able to fit lengthwise through a ring exactly 2 metres wide.
There is no restriction on the construction techniques used in manufacturing any parts of the aircraft.
There is no requirement for the pilot to be the builder of the model although this is encouraged.
The model may be controlled with any make or model of radio providing it is able to operate simultaneously with other radios as per the latest SAMAA specifications.
Transmission must be on one of the SAMAA approved frequencies.
There is no restriction on the number of models an entrant may use in the course of the contest, a different one for each flight if he/she so wishes.

Launching and Re-Launching
Launching will be done through the use of an electric winch with a maximum distance of 200m between the winch and the turnabout.
There is no restriction on the number of re-launches, but the last flight counts.
NOTE! If you intend using your scores for the National Postals as well, you will have to abide by those relaunch rules!

Flights
2 Minutes preparation time.
8 Minutes working time.
6 Minutes flight time starts when the glider leaves the winch line and stops at the end of working time, or when the glider touches a “grounded” object.
Flight time outside of working time does not count (i.e. flight time stops at the end of working time).
Landing score outside of working time does not count.
Landing after 7 minutes flight time also does not count.
“Landing” further than 15 metres from the spot does not count.

Scoring
One point is allocated per completed second of flight time from release of the parachute/flag until the model touches a “grounded” object. One point per second is deducted for each full second after six minutes before the model comes to rest. The maximum possible flight score for each task is thus 360 points.
Landing points are calculated by subtracting five points from a maximum of 100 for each full metre that the nose of the model comes to rest away from the spot. 100 if the nose is within one meter of the spot, 95 if within 2 meters and so on down to 30 if within 15 meters.
The landing score is added to the flight score to obtain the task score. (Example: A 5 minute 54 second flight with a landing 1.4 m from the spot will receive a score of (5 x 60 + 54 = 354 flight points plus 95 landing points = 449 points)
Flights that extend 60 seconds over their target time lose all landing points.
For a flight to be recognized the pilot must have a separate timekeeper — timing for yourself is not permitted.
The maximum score is 460 points per flight, from 360 flight points (6x60 seconds at one point per second) plus 100 landing points.
1000 points are awarded to the pilot with the highest combined flight score in each slot. The other pilots’ scores are calculated proportionally.
Conditions permitting, ideally, six rounds will be flown. The best 5 scores will be used in calculating the pilot’s total score.
The pilot with the highest score in each class will be declared the winner for the specific Challenge.
Each individual pilot’s best three scores will count towards his/her total for the year.
The club’s total for the year will consist of the top 4 individual pilots’ scores, including a minimum of either one Junior or Rookie.