FAI F3U World Cup Latvia Drone Racing 2018

General

All rules mentioned in this site are based on FAI Volume F3 Radio Control Drone Racing with adjustments and additions where applicable. Participants must follow FAI Volume F3 Radio Control Drone Racing and CIAM General rules

FAI

This competition is part of FAI F3U World Cup so all participants must hold a valid FAI Licence or Drone Permission during event. If you don't have a FAI licence and you are either a citizen or a resident of Latvia licence can be obtained by contacting Drone Racing Latvia.

Every drone (which will be used in the event) must be clearly marked (sticker, engraving, etc.) with participants National ID number and FAI Licence Number/Drone Permission. Text size for these markings should be at least 6mm high.

For the event, each pilot can register and use up to 3 drones. Use of unregistered drones is not allowed! Use of other pilots drones (even registered ones) is not allowed! If you crash all of your allocated drones beyond repair your event run is over.

BE ADVISED: In order to validate licence holder event organizers might ask for identification document (ID, drivers licence, passport, etc.) during attendance registration/drone technical inspection process. Failure to provide information that is needed to validate licence holder will be a reason to decline participation!

Participation limits

Currently there are no participation limits although we reserve the right to limit the amount of participants at any time by updating information here. If a participation limit is imposed new participants will be handled on first come first served basis.

Registration deadline is August 9th at 23:59:59 but can be subject to change at a later time.

Insurance

Currently in Latvia there is no insurance requirement by law. However, we do encourage pilots to obtain one as organizers are not responsible for any damage done during race to third party property or other persons.

Drone Technical Information

Drones must meet these general requirements:

  • Motor-to-motor (MTM) distance diognally must not exceed 330mm;
  • Battery voltage must not exceed 17.0v (4s);
  • All-up-weight (AUW) must not exceed 1000g;
  • Propeller diameter must not exceed 6 inches;
  • Metal propellers or any propeller protection devices are not allowed;
  • Each motor can be tilted up to 15° maximum angle in each direction;

Radio Control System

Participants are allowed to use 2.4Ghz and 868Mhz (Crossfire etc.) radio control systems. Both systems must abide by the European Union and Latvian regulations:

  • 2.4Ghz - transmission power during event must not exceed 100mw and must employ Listen Before Talk (LBT). This means that all FrSky systems must use the EU LBT firmware (transmitter and receiver);
  • 868Mhz - transmission power during event must not exceed 25mw.

Video transmission

Participants are allowed to use only 5.8Ghz TBS Unify (all variants), ImmersionRC Tramp, FuriousFPV Stealth video transmitters in combination with circular polarized antenna. Video transmission must abide by the European Union and Latvian regulations:

  • transmission power during event must not exceed 25mw.

Video transmitters not mentioned above cannot be used during event. Linear/dipole antennas are not allowed!

NOTE: We reserve the right to add or remove (removal can't be done less than a month before event) video transmitters from the existing list by updating information here.

LEDs

Each drone must be equipped with at least 12 RGB LED functioning elements (for example - 2 RGB LED strips containing 6 LED elements each) which are located under drone arms/body or in the back. These RGB LED elements must be switchable either by hand or electronically to adjust to any of these colors - WHITE/RED/ORANGE/YELLOW/GREEN/BLUE/DARK VIOLET/DEEP PINK. During flight each color will represent a video frequency.

Frequency -> Color combinations will be the same as in Betaflight so if you are using Smartaudio/IRC protocol to switch VTX channels in combination with LED VTX channel functionality you are already set (how to set up LEDs in Betaflight).

In order to continue using a drone in upcoming flights after RGB LED elements have been damaged/stopped working at least 6 RGB LED elements must be in working order.

Drone cannot be used if at the start of flight RGB LED elements are not in working order or pilot is not able to set up the correct color.

Failsafe

Must be set to drop or no pulses. Any last RC input holding or other methods that try to keep the drone in the air after it has lost RC signal are not allowed.

Automatic modes

Horizon, angle, level and other stabilization (including GPS assist etc.) modes are not allowed. Anti-crash, turtle or similar modes which are meant to either stop the "spin of death" after hitting an obstacle or flip drone after a crash are allowed but use of these can be limited by the assigned judge if drone is deemed not fit for flight.

Race Information

Practice Stage

  • Each pilot will be assigned to a flight group and a video transmission frequency at random;
  • At least 2 flights per pilot;
  • Each flight will be 3 minutes (unlimited laps);
  • 4 to 6 pilots per flight (based on total pilot amount);
  • Pilot can be granted additional flight (re-flight):
    • After a crash if the reason for it cannot be attributed to him.

Qualification Stage

  • At the start of each round, pilots will be assigned to a flight group and a video transmission frequency at random;
  • At least 3 flights per pilot;
  • Flight will consist of X laps (TBD);
  • 4 to 6 pilots per flight (based on total pilot amount);
  • Reflights will be flown at the end of the concerned round;
  • Pilot can be granted additional flight (re-flight):
    • After a crash if the reason for it cannot be attributed to him and his assigned judge considers that this collision has clearly penalised the pilot. In case of a re-flight, the flight for which the pilot gets the re-flight is then definitively cancelled.
  • Overall ranking is determined taking into account the time achieved when the number of laps is completed (faster is better).

Elimination Stage

  • Type and flight groups will determined based on number of pilots:
    • Up to 32 pilots in total: 4 pilots per group with 1/4th final round (Top 16 from qualification)
    • Up to 48 pilots in total: 4 pilots per group with 1/8th final round (Top 32 from qualification)
    • Up to 60 pilots in total: 6 pilots per group with 1/8th final round (Top 48 from qualification)
  • Number of laps will be determined based on observations made during qualification stage;
  • Second chance flight availability will be based on time constraints;
  • Reflights will be flown at the end of the concerned round;

Timing system

Event will utilize VTX timing system so there is no need for transponders or 5v output on drones.

Other

Any other situation not mentioned in this section of the site is covered by FAI Volume F3 Radio Control Drone Racing. If a situation that is not covered by either set of rules arises it will be dealt on a case by case basis by the Race Director.