FAI Rules
First of all, if you are new to F5B or indeed high power electric gliders (Hotliners) then don't worry about the rules.
All you really need to know is that there are special events held for these type of airplanes in the UK and you really should consider going to at least one of them to check it out !!!
F5B is a multitask event for radio controlled electric gliders. The three tasks that have to be completed in one flight are Distance, Duration and Landing.
Distance: You have 200 seconds (3min and 20s) from the moment the model is launched to complete as many 150 meter 'legs' as possible. Each completed leg scores 10 points. You can use the motor to climb up to 10 times but all legs must be completed with the motor off.
All you really need to know is that there are special events held for these type of airplanes in the UK and you really should consider going to at least one of them to check it out !!!
F5B is a multitask event for radio controlled electric gliders. The three tasks that have to be completed in one flight are Distance, Duration and Landing.
Distance: You have 200 seconds (3min and 20s) from the moment the model is launched to complete as many 150 meter 'legs' as possible. Each completed leg scores 10 points. You can use the motor to climb up to 10 times but all legs must be completed with the motor off.
Duration: At the end of the distance task you have to fly for a further 600 seconds (10 minutes). Each second airbourne scores 1 point but 3 points are deducted for every second of motor you use. You also lose a point for every second you fly in excess of the 10 minutes.
Landing: The flight ends when the model comes to rest on the ground. A landing bonus of 30 points is added if the nose of the model is within 5 metres of a pre-determined landing spot. 20 points are added if the nose is within 10 metres, and 10 points if it is within 15 metres.
When you eventually do want to win an F5B league event or even want to get a spot on the UK team your model and equipment will have to fit around the following rules as layed down by the CIAM and FAI.
Landing: The flight ends when the model comes to rest on the ground. A landing bonus of 30 points is added if the nose of the model is within 5 metres of a pre-determined landing spot. 20 points are added if the nose is within 10 metres, and 10 points if it is within 15 metres.
When you eventually do want to win an F5B league event or even want to get a spot on the UK team your model and equipment will have to fit around the following rules as layed down by the CIAM and FAI.
- Minimum model weight without battery will be 1000g.
- Maximum 10s (no parallel) Lithium Polymer cells.
- Minimum battery weight 400g .
- The amount of energy in one flight must be stored by a logger and the maximum to be used is 1750 W*min.
- Anything over this will result in a deduction of 1 point per 3 W*min over 1750 W*min.
- Minimum surface area 26.66 dm2
- Maximum surface loading 75g/dm2
