Large Model Association Forum

With the new 2.4 radios, its common to have even the basic reciever with a throttle failsafe, but, how should a glider be set? by its very nature, the beast will soar up, rather than down, with the over 20kg glider, there must be a way of curtailing its flight, now, i have NEVER been a fan of the hard over and in brigade, but what would you do with a glider? even a basic rudder elevators jobby?

Interesting question.
Historically the preferred option is full airbrakes, flaps down or crow braking. Basically whatever is fitted that normally is used for glide angle control.
If you are flying a basic rudder / elevator model I hope it is not over 20 kg !!!

John

i used the rudder elavator variant as a point that any aircraft that carries a spectrum reciever has a built in failsafe that has to be activated by CAA rules and regs, this goes for any size of model that has a 2.4 fitted (thinks, does futaba have a FS fitted as specky?) looking at the raft of replies looks like others either dont fly gliders, arnt interested, or plain dont know

My third scale 35lbs ASK13 has air brakes set fully on and controls to neutral. Also tow release released
When the air brakes are on it has a nose down attitude so this is what I have set the failsafe to. It certainly wont want to climb with the air brakes deployed.
The FRsky Rxs failsafe's on all channels .
Once I had trimmed the glider out I reset the failsafe.
I felt this is the best I could do.

Simon

Alan

Can't help you with just Rudder / Elevator types but as I guess that the model(s) in question are under 7 kg and therefore the CAA requirement re failsafe’s is not applicable I can only suggest you contact the BMFA for clarification as it was they who made the rule re failsaf’es on ALL models.

John

John Greenfield wrote:I guess that the model(s) in question are under 7 kg and therefore the CAA requirement re failsafe’s is not applicable

A word of caution here as many people don't realise this, although you must fit a fail safe to any model over 7kg regardless of radio being used, if you are using a radio where a failsafe can be set e.g. all the new 2.4ghz systems, then it's a requirement to have the failsafe set regardless of size or weight.

The requirement to have the failsafe set if fitted to models under 7Kg only applies to powered models - there is no requirement for gliders.

Although that said, it would be a good idea to set the failsafe of any glider to stop the model flying away & into the windscreen / engine of a passing airliner. Full up & full right on a rudder / elevator model should dethermal it nicely (or full up & left in the southern hemisphere).

interesting one that, it was my thoughts that if any model had a fail safe receiver, then it had to be set, Hmm, more enquiring to be done, me thinks