Version: 2021, March 07

1. General Rules
1.1 Objectives
The goal of the Online Contest (OLC) is the rapid registration of cross-country soaring flights, without the
requirement of a flight declaration, in order to enable a decentralized comparison of current performances.
The direct comparison is intended to serve as a motivation for cross-country flights. The documentation of
the flights is aimed at enhancing the visibility of gliding sport.
1.2 Organiser
Segelflugszene gemeinnützige GmbH (non-profit organisation).
1.3. Location and Time
1.3.1 Scoring country
The flight is scored for the OLC of the country in which the take-off took place.
The take-off begins with the acceleration of the airplane from a velocity of 0 km/h (Groundspeed), and finishes with being fully airborne.
1.3.2 Scoring period
The scoring period of the current year ends 12 days before the first Saturday in October
The scoring period of the following year starts at the next day.
1.4 Participants
The participants are natural persons (see conditions of participation).
1.5 Validity of Score
The scoring of a flight becomes final 14 days after its registration, if no protests against the flight have
been lodged. Participants are required to keep the IGC files until one month after the end of the current
scoring period.
1.6 Participant Registration
Participants must register on line using the form provided under http://www.onlinecontest.org
and must confirm their registration annually. With their registration the participants must declare their
acceptance of the conditions of participation.
1.7 Infringements
In Preparation.
1.8 Protests – Jury
In Preparation.
1.9 Winner
The winner, and hence „OLC Champion“, of the relevant scoring year is the participant who has the most
points with six flights.
1.10 Clubs
Participants declare their club within their registration. The first flight of a season (respectively for the season 2021, the first flight on or after the 1st April 2021) defines the club for the entire scoring period.

2. Scoring Classes
All gliders, including those with a retractable engine, are scored in one class. The OLC index
is used to compensate for differences in the glider performances.

3. Flight Documentation and Entry
3.1 Documentation
Flights are documented exclusively with GPS flight recorders. There are two validation levels:
i) With IGC-approved flight recorders (green V icon in the info window).
The flight data (files) must have been created by an IGC-approved flight recorder.
ii) With position recorders approved only for the OLC (blue V icon in the info window).
These are all other GPS position recorders which can be read by OLC-approved software.
IGC-approved flight recorders are required for the documentation of flights for league and speed scorings.
In the case of flights with motor gliders, the flight data must include a record of the engine running time
An up-to-date list of the units which may be used for the OLC can be found on the OLC web site
3.2 Flight entry
Each flight must be entered on line via the form provided under http://www.onlinecontest.org
not later than 48 hours after the landing (or if the flight record was interrupted
before the landing, 48 hours after the last recorded fix). With the flight entry, the participant confirms the
correctness of the details given.

4. Rules for the OLC Sprint task
4.1 Task distance
- The scoring distance is calculated on OLC-Classic-Rules. Sprint start point and sprint end point are positioned such that the sum of distances between sprint start point and sprint end point becomes as large as possible.
- End of sprint may be chosen a maximum of 150 minutes after start of sprint.
- Sprint start point and sprint end point must each be recorded as gps fixes on the flight track.
- sprint turnpoints correspond to 3 turnpoints of the OLC-Classic-scoring, which must be positioned between sprint start and sprint end
4.2 Altitude Difference
- The sprint start point can not be higher than the sprint end point.
- The sprint start altitude is the altitude at the sprint start point.
- The sprint starts after the begin of engineless flight and corresponds to the time at the sprint start point.
- Sprint arrival height is the altitude at the sprint end point.
- The sprint ends latest at or before the end of engineless flight and corresponds to the time at the sprint end point.
4.3 Scoring
The average speed points for each flight are caklculated from the following formula, where "km" is the total distance in km from the sprint start to the sprint finish round up to 3 turn points, and "Index" is the DAeC Index of the glider: points = (km / 2.5) * 100 / [(Index - 100) * 0.75 + 100]
The OLC-League-average-speed per round for a club is calculated from the sum of the three highest average speeds of all different pilots of a club. Only flights with an average of min 20 km/h will be scored.
4.4 Take-off
The take-off has to be part of the IGC flight record.
The take-off begins with the acceleration of the airplane from a velocity of 0 km/h (Groundspeed), and finishes with being fully airborne.
4.5 Start Circle
Before the sprint departure point, the powerless flight must begin within, or pass through, a cylinder with a radius of 15km centered on the take-off airfield.
4.6 Target Circle (valid from March 30, 2018)
After the sprint end point, the powerless flight must end within or pass through a cylinder with a radius of 15km centered on the take-off airfield.
4.7 Speed-OLC Scoring
The minimum score for a flight is 50 points. Shorter flights are shown on line, but not included in the scores.

5. Miscellaneous

The Earth Model used for all calculations shall be in accordance with FAI Sporting Code 3, Annex A, a sphere of radius 6371.0 kilometers.

6. Conditions of Participation

6.1. Participation and Registration
Participants are individual pilots, or two-pilot teams for double seaters.
Participation is free of charge.
Registration can only be made online via the forms provided at http://www.onlinecontest.org and has to be
made once a year.
By their registration the participants agree to the competition rules.
6.2 Publishing of data/Right of use
The participant agrees that his flight data and flight-routes will be published on the Internet at
The right of use for the flight track files is non-exclusive but is granted non-revocable and indefinite to the
organizers of the OLC.
6.3 Compliance with Aeronautical Regulations/ Airspace Violation
The Organisers of the OLC assume that the participants do not infringe any aeronautical or other
regulations on their OLC flights. For example, clearance must be obtained from the relevant authority for
entry into any area where a clearance is required. However, the OLC team will not check that the
clearance was in fact obtained. We are neither competent nor responsible for aeronautical jurisdiction.
If it becomes known to the OLC team that, for example, a fine was imposed in connection with an OLC
flight, we reserve the right to take action outside these rules. Of course anyone has the right to approach a
pilot in the event of airspace violation. It is a matter for the authorities or a representative of the national
aero club to decide whether or not there has been an infringement of regulations or violation of airspace.


Peter H. Braasch
Air Avionics
DG Flugzeugbau
Alexander Schleicher
Segelflugschule Wasserkuppe
Jonker Sailplanes
Cobra Trailer
Rent a Glider
LANGE Aviation GmbH
SCHEMPP-HIRTH Flugzeugbau GmbH
WINTER Instruments
Deutscher Wetterdienst
M+D Flugzeugbau
IMI Gliding