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Other › Crashed, now many issues
02-08-2006 05:07 PM  12 years agoPost 1
P.I.Engineer

rrApprentice

Kent, WA

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I crashed a while back, repaired, couldn't get things working, put it away for a few months.

Here are the issues, my tail will not stay put, unless i have the trim way to the right.

power loss after big tail inputs/ and after about 30 seconds of being on

motor/battery/esc way hotter than normal, was running 15t for 9 minutes and all components warm but not hot before crash.

noticed some superglue like material caked on the edge of my motor.

whole heli acting a bit glitchy.

I am trying figure out what is wrong with it, with out buying all new electronics. Battery was topped off before this test flight

xl hde
align gyro
electron 6 rx
align 420 motor, had a 15t on it
align 35g esc

I even resoldered my motor/esc connections this weekend and it didn't help.

my original crash before stuff started happening was a messed up loop where i landed pretty hard on the skids and shredded my canopy. It still flew after that. I am almost positive that i didn't hit the gyro, i have it mounted on the right side of the frame.

Anybody heard of any of this? I really want to start flying again, but don't wanna drop 200 bones.

Thanks in advance for any help/advice

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02-08-2006 05:30 PM  12 years agoPost 2
gkoutsis

rrKey Veteran

Athens Greece

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First of all why are you using a 15T with a 420L? Thats the worst thing you can do to your system.

Got for a 11T if you are only hovering or a 13T if you are into light 3D (if you can 3D with a 420).

Get a 11T, fly the heli and report back. You should have tons of power and the motor/ESC/battery will run almost at room temperatures.

George

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02-08-2006 05:47 PM  12 years agoPost 3
cudaboy_71

rrElite Veteran

sacramento, ca, u.s.

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Here are the issues, my tail will not stay put, unless i have the trim way to the right.

power loss after big tail inputs/ and after about 30 seconds of being on

motor/battery/esc way hotter than normal, was running 15t for 9 minutes and all components warm but not hot before crash.
all 3 of those points sound like binding in the tail. best bet would be to tear down from the front of the boom backward and go through it all. make sure your belt didnt get twisted in the rebuild, and check the tension. with the pushrod off the servo horn, you should be silky smooth manually moving the tail linkage.

if it ain't broke, break it.

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02-08-2006 06:18 PM  12 years agoPost 4
P.I.Engineer

rrApprentice

Kent, WA

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had 13t to start off with.

switched to 15t and had an amazing amount of power. When i would be finished none of my stuff was hot.

i don't see how 11t would have tons of power. I don't just hover i fly all out pretty much the entire time, i have been flying for about six months.

I took the tail case off over the weekend and checked to make sure that the belt was not twisted, i hadn't thougth of checking the pully bearings, i will check it when i get home.

I got a new tail boom after my last crash, i wd-40 my belt before my last test flight and still had issues.

I hope it is the pully, then i will get a 430 motor, i hear that they are powerfull

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02-08-2006 06:27 PM  12 years agoPost 5
gkoutsis

rrKey Veteran

Athens Greece

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my 420 bogs down with the 13T. I wonder how you interpret the "amazing amount of power" with the 15T. What you probably had was amazing head speed and amazing heat from the struggling motor.

But anyway, I am going to let somebody else continue this.

George

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02-08-2006 06:47 PM  12 years agoPost 6
P.I.Engineer

rrApprentice

Kent, WA

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yeah, amazing head speed, it was fun while it lasted i guess

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02-08-2006 06:53 PM  12 years agoPost 7
Chugga-bug

rrVeteran

London UK

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gkoutsis

Just as the 430L comes in a variety of KV ratings, I think you'll find there is more than one 420L.
It's possible he's got a lower KV motor than you.

"Up in smoke... that's where my money goes.."

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02-08-2006 06:56 PM  12 years agoPost 8
standard_63

rrNovice

Seattle

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Check the main gear if you haven't already. After my last crash I noticed I chipped a tooth. I replaced it with a new one that was oval, and as the gear mesh went in and out the teeth got worn down. As they wore down they skipped on the pinion causing a 'glitching' sensation, and occasionally acting like it was powering down as the pinion spun against the gear. It would go from no load to too much load and that could cause your motor to heat up.

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02-08-2006 07:01 PM  12 years agoPost 9
gkoutsis

rrKey Veteran

Athens Greece

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Just as the 430L comes in a variety of KV ratings, I think you'll find there is more than one 420L.
Nope there is only one 420L 3200KV.

Indeed the 430 comes in different KVs.

It could be that the motor is on its way out though. Make sure everything is mechanically correct and then focus on the electronics.

George

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02-08-2006 07:08 PM  12 years agoPost 10
Rob_T

rrElite Veteran

..

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noticed some superglue like material caked on the edge of my motor.
That doesn't sound good. You might be melting the glue that holds the windings in, or the (inadequate) glue that holds the end bells on the motor. The windings of an outrunner motor like the 420 are on the inside so dont always heat up the outside of the motor despite being really hot on the inside.

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02-08-2006 07:13 PM  12 years agoPost 11
Chugga-bug

rrVeteran

London UK

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Nope there is only one 420L 3200KV.
Ok. Just checked Align web site and your right.

I used to have a 400L and that was available in a couple of KV ratings.
It was just a guess.

15T pinion is definitely a bit too much for that motor then.

"Up in smoke... that's where my money goes.."

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02-08-2006 07:16 PM  12 years agoPost 12
P.I.Engineer

rrApprentice

Kent, WA

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well,

what motor for power, i think that a new motor will most likely need to be in my future anyway

align 430 3550
align 430 4050
450th

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02-08-2006 07:20 PM  12 years agoPost 13
gkoutsis

rrKey Veteran

Athens Greece

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Get a 450TH. But make sure you get the REAL one as there seems to be a few copies here and then.

You're flying 3S or 4S?

George

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02-08-2006 07:22 PM  12 years agoPost 14
P.I.Engineer

rrApprentice

Kent, WA

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3 cell tp 2100

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02-08-2006 07:30 PM  12 years agoPost 15
gkoutsis

rrKey Veteran

Athens Greece

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The 450TH is very good and will not burn up for no reason like the 430s do. Its up to you to decide.....

George

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02-08-2006 07:37 PM  12 years agoPost 16
P.I.Engineer

rrApprentice

Kent, WA

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curious to as who makes the "real" one? just go fly, does that sound right? Where is a mail order place that has it. I just read that heli direct is one place with fake ones

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