humidity and glitches?

[didier]

Hi you guys,
I need some thoughts on a crash i had this evening,
I just made a depron Hawk from one of the parkjet-like plans
that was offerd to me by a friend, i used a typhoon 4W motor as a pusher,
kontronic esc, jeti reciever with futaba x-tal
I had made 4 glitch-free 8minutes flights, and the thing flew perfect.:)
On the fifht flight i had a first glitch afer some 2 minutes, i immediately
tried to land, but then it went crazy and crashed hard..:mad:
Upon inspection and testing everything worked fine..
The only difference with previous flights was the fact that it was getting late, and the humidity was enourmesly increased to the point the plane
was a bit "wet" from condense before the flight.
Could it be the reason?? I can rebuilt the plane, but it bugs me not knowing what happened...
thx, Didier

[Bmiller]

It's possible that water condensed inside the RX case.
From your description,
I don't see water intrusion anywhere else causing your crash.
Bruce

[Bill G]

My first thought would be someone nearby, maybe even setting up a plane in their basement, that is on your channel. I'm convinced that interference must have more to do with glitching than 99% of the other things its blamed on. I've flown in East K-B-F with GWS pico receivers at near 1000ft distance, and its probably is smooth as any dual conversion receiver with digital servos. Most of the problem stories I hear of are in well populated areas.

[didier]

Hi guys,

Thx for the reply's, i just heard another thing that was not so good wiht my setup; my leads from esc to battery are fairly long, that could cause some serious glitching i was told, any comments on that one??

Didier

[Bmiller]

Anythings possible but you should've experienced severe glitching on every flight if the leads were too long.(typically 16" or longer)

[DIALED/CHUCK]

I tend to agree with Bill G and Bmiller...if it glitches...it usually does from the 'get-go' because of shadowing from CF reinforcement rods/tubes or 'leaky' electronics.

I have had the same issue with perfect flying planes...then there is a flight where I just get 'hit' left and right. I know from the RF engineers at the office that excessive heat can 'bake' the transmission reach of FM...but it is usually only seen on long-range areas that were weak to begin with....

In this case, call it a screwy interference glitch....

Sorry to hear about what happened. It's never easy picking up the pieces on a great plane.

Stay strong and get back up there as soon as you can!

--C

[didier]

thx for the support you guys,
the plane is flying again, i did some testing before flying it again, and re routed the antenna+another recever,and shortened the battery cables. I noticed that putting the antenna away from all electric cables made a great difference. It's routed upfront round the nose, not so pretty, but a crashed plane does't look good either..:D

Didier

[tenore]

I fly in Central Arkansas with humidity in the 80% some of the time, and we haven't noticed any connection between the two.