2.4 ghz FAAST lockout!!

[djmisterpe]

With all due grief and sorrow I lost my most cared for and beloved plane.the beaut turned to dust all coz of radio lock out... the radio locked and the plane went into a slow roll by itself and then gone.i spent almost a fortune(atleast for me) to get a brand new 10CG and thats what I get...I have used that radio before once on a 50CC but it worked fine...a few other guys on the field have had similar tragedy, not with the same radio but with 2.4ghz.I am a big fan of Futaba and do not mean any brand bashing here but just want to figure out the possible reasons.All I know is that my radio locked out.Help!!

[djmisterpe]

luckily found the rx form the crash site.one of the two antenna wires was missing....precautions? how to fix it? reciever is working fine on ground when connected to a battery and servo...no range check just power check so far.suggestions

[Fast Fly]

Send your RX back to Futaba to be throughly checked out and a new antenna installed and maybe they can shed some light on what might of happened. Futaba is Good Equipment. Good Luck

[djmisterpe]

guys my setup on the 120 size plane(which crashed) was


5 311 hitec standard servos
1 2.4 ghz FAAST R6008HS 8 channel reciever
1 HS 5645MG digital servo


is a Nicd 1000mah Battery enough for this setup? jus trying to figure out if it was the load on the battery which washed out...but it was fully charged and happened int he first 2 minutes of the first flight.

[Judge]

Can you be a bit more specific about what happened?

Was the plane in a roll when it locked out, did the roll start after the lockout, or was the roll uncommanded and that is how you knew you were in lockout?

Was everything dead, no control at all?

Did you have failsafe set or had you left it in the default "hold" mode?

How many flights did you have on the plane that day?

[Woodie]

Since it was a 'HS' receiver, which mode did you set the receiver to? HS (hi speed) or FS (normal speed)?

Woodie

[rcflyguy]

1000mah? What kind? What voltage? That digital servo mayhave used more mah that yo thought.

[3dAndrew]

Hey djmisterpe, i lost my cap,(the one in my avatar) due to a futaba lockout and due to my pots in my radio being DIRTY! (but the plane has now been repaired, and i bought a new radio futaba 12fg.) So here's what i say, send your whole radio system back to futaba. Write them a letter explaining what happened. And if the radio is new as you say it is, then the repair should be covered by the warranty. Sorry to hear about your crash. Take care buddy!

[Judge]

It goes without saying that you should ALWAYS send a radio in after a crash. It never ceases to amaze me how often I see posts about a crash and after a few lines you see something like "I stuffed the RX a few weeks ago in my whatever, but it range checked fine so...."

If you crash bad enough to break the plane then you absolutely need to send the radio in.

On the Futaba radio you are using it has a low voltage failsafe called battery failsafe (BF/S). At about 3.8 volts the radio will drop the throttle to low (assuming you have already set a low throttle failsafe) where it will stay until you cycle the throttle stick to low then up again. You still have full control of everything else, and once you reset it the throttle will work for about a minute and then drop again.

But we still need to know how the failsafe was set. Did you set it or leave it in the default "hold" setting?
Was the roll uncommanded and it kept going or was the roll the result of the ailerons locking.?

[xrisnelson]

My sincere condolences on your lost. However, that being said - in my 20 years of flying, I can attribute all of my mis-steps to radio/airframe/battery/switch/servo setup. We should'nt automatically assume that it is the "Radio" fault when something such as a alleged lockout takes place. I have always been a Futaba flyer. JR is a great radio also, although I would never admit it to close friends. Let's give the manufacturers the benefit of the doubt until proven otherwise. Just my .02 cents worth.

Chris N

[JoeAirPort]

That's not enough battery IMO. Maybe for an ignition but for the rx and servos I'd use a 1600-2000 mah high discharge pack for that plane. Also what was the health of that battery? In new condition I'd go 1-2 flights max. And even then the battery may simply not have the discharge rate for your setup. It's not just the mah of the pack, it's the ma (available discharge current). Two totally different numbers. I'd be willing to bet you were short on both. Once you eliminate your setup then look at the rx...but I think it was your setup (battery). I'd want a battery than can discharge at least 5 amps or 5000 ma for your setup. Also the connectors of the battery and the switch need to deliver that. One bottleneck will kill your plane. If you had two of those 1000 mah nicd on separate switches that might have been enough (but I don't know enough about your battery and switch to say for sure).

[exeter_acres]

could have been a servo failure....

HS-311 is only rated to 42oz of torque at 4.8v and only 49oz of torque at 6v.....
and they are only nylon gear.....

seems a bit low for a 120 size airframe (depending on the airframe....)

[JoeAirPort]

Whoa can't believe he didn't strip those gears. That's not even near what you need for 120 size. I'd say 100 oz metal gear minimum.

[Flyfalcons]

A loose connection or solder in the switch or battery can cause that as well. That problem may not show up when testing on the ground but can appear under the vibration of the engine.

[djmisterpe]

	Quote: Originally Posted by Judge
	Can you be a bit more specific about what happened? Was the plane in a roll when it locked out, did the roll start after the lockout, or was the roll uncommanded and that is how you knew you were in lockout? Was everything dead, no control at all? Did you have failsafe set or had you left it in the default "hold" mode? How many flights did you have on the plane that day?

The plane wasnt in a roll when it locked out....ws flying straight and rolled after the lockout uncommanded.everything was dead.there were no failsafe settings at all.I'm pressuming:

a) it cud be the lose connection between the battery and the rx ....but ive flown that plane a gazillion times with other rxs' ...with this one the connection was even tighter.

b) battery drain out...BUT it was fully charged (nicd 1000 mah).it shud have atleast given me one flight.

rx was covered with very very light foam open from both sides(width).as for the hot air outlet...im not sure.but my 50cc doesnt have a proper outlet too..rx never overheated or malfunctioned with it.