F5J - Thermal Duration Glider
with Electric Motor and Altimeter/Motor Run Timer
A rules proposal for F5J was considered and approved by CIAM in April 2011
and became an official FAI provisional class on 1 January 2012.
F5J was elevated to full official status at the 2016 CIAM Plenary Meeting effective 1 January 2017.
A good resource for F5J (particularly in the USA) is www.f5j-usa.com.
GliderScore 6.23 (and later) has the features to run F5J competitions.
F5J is like F3J but with electric powered models.
In the F5J rules there is a height penalty based on "... the maximum altitude recorded
the moment the model leaves the launchers hand until 10 seconds after the motor
An F5J score is made up of
- one point per second of flight time, plus
- the F5J landing bonus, less
- the height penalty.
The height penalty is based on a reference height of 200 metres.
0.5 points per metre is deducted for start heights up to 200 metres.
3 points per metre is deducted for start heights above 200 metres.
As an example, a start height of 201 metres would incur a height penalty of 103
With GliderScore the reference height and penalty points per metre can be changed
for local competitions.
- Select one of the Motor Restart options. These change the way that Overall Results are compiled.
- The official (FAI) rules about Motor Restart apply from 1 January 2023.
- FAI rule - Motor Restart is not allowed in Category 1 events (World and European championships).
- FAI rule - Motor Restart is allowed at other events however the resulting zero score cannot be dropped.
- GliderScore provides a third option.
- Unofficial rule - Motor Restart is allowed and the resulting zero can be dropped.
- Unlimited number of pilots. Up to 99 rounds can be drawn.
- Unlimited number of Landing Bonus tables.
- Reference height and penalty points per metre can be changed if required.
- The draw separates pilots in the order based on same frequency and/or same team.
- Pilots can be 'retired' and a re-draw made with the remaining pilots for later rounds.
- Whole groups can be re-flown.
- New re-flight groups can be 'built' with selected pilots.
- Keeps track of each pilot's best score for each round (if pilot is re-flown)
- Deducts drop scores at predetermined number of rounds flown.
- Deducts (safety) penalties from the final score.
- Allows for one or two timekeepers. If two, times are averaged (but if one time entered,
averaging does not occur).
- Where a time or landing score is entered, validates that a height has also been entered.
- Where a time greater than the target time is entered
- prevents entry of a landing score, and
- time score is based on the target time.
- Provides a comprehensive suite of reports. All reports can be previewed, printed
- Score cards can be printed from the Reports menu.
- Multiple competitions can be selected into a Competition Series and a series Championship
report automatically produced.
Expand F5J on the side menu to work through these features.
Example competition setup for F5J
- Decimals for Total Score should be set to 1
- Target time can be changed
- Decimal places for timing can be changed
- Different Landing bonus tables can be used
- 'Deduction from Flight Score' is set to 'Height Penalty'
- Reference height and penalty points per metre can all be changed
- Number of timekeepers can be one or two
- Motor ReStart options are
- Not allowed
- Allowed but zero cannot be dropped
- Allowed and zero can be dropped.
Watch the Comp Setup F5J video.