RunRyder - Conical pinion wear & esc issues

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e-MS Composit Hornet > Conical pinion wear & esc issues

husafreak
Senior Heliman
Location: NorCal

1. Here is a picture of the worn out conical pinion tail drive gear. I'm guessing this is what happens if you push the gear too far into the main gear! The main crown gear drive has a little hook shape to a small section of teeth but I doubt that caused this.
2. My CC Phoenix 10 has allways worked fine with tp1320 batts and AXI 2208/20 24t but I redid my setup with +11 to -11 pitch and now it cuts out at max collective. This led to an auto that luckily only damaged the landing gear. I have now disabled the protection feature of my ESC but I wonder if others are getting this kind of pitch out of CC 10's or if I need to back off on pitch or buy another esc?

01-01-2007 Over year old.

husafreak
Senior Heliman
Location: NorCal

Here is the pic.

01-01-2007 Over year old.

Micro-Maniac
Elite Veteran
Location: Pasco,Washington Formerly: Captain Chaos

I'd say your tail rotor stalled causing the turning crown gear to shear the non-turning conical gear - Likely when it crashed - Just touching the tail blades to the ground/grass/weeds anything that will physically slow or stop the tail rotor while the main gear is turning will cause it to happen.

Can't help ya with the CC-10 - I use the MS-116 and all the available pitch the stabilizer bed/arm allows (never actually gauged it) - It's never cut out on me.

01-01-2007 Over year old.

husafreak
Senior Heliman
Location: NorCal

I reprogrammed the CC 10amp esc to have no overload protection, then I ran it on the bench with my wattmeter and found it to draw exactly 10 amps at each pitch extreme (+11-11). Then I went out and flew it with my revised linkage and setup, it flew fantastic for 5 min! rolls flips short inverts split sses and stall turns just blasting around and it flew like it was on rails. Then the antirotation support cracked in half and I lost control, we know it broke because the back half with the pin fluttered down in the middle of the runway. I hit throttle hold and the only damage was a landing gear leg (that's 3 of those in two days!) Damn, anyone else have that bracket go? Anyway, happy new year. Eric

01-03-2007 Over year old.

DarkHorse1
Senior Heliman
Location: Gloucester UK

The anti rotation normally loosens either at the mast or the CF rod joint weakens in a crash and can remain unnoticed until it finally breaks loose, causing the swash plate base to twist offsetting cyclic inputs. I think the heli is still flyable but accurate pitch and cyclic may suffer. The AR assembly doesn't carry a high load in flight until the heli is crashed. CA it back on and you should be fine.

> rolls flips short inverts split sses and stall turns just blasting
> around and it flew like it was on rails.
Make some VIDEO!!!! please

01-03-2007 Over year old.

HOMEPAGE

husafreak
Senior Heliman
Location: NorCal

Well, I fly heli's about as good as I play guitar, it's fun for me but not so much for anyone else! I'm pushing my little envelope though. I manage to lose control about every flight and recover. I practically stopped the blades on my Raptor yesterday doing a rolling auto, flipped off throttle hold and you should have seen that thing tumble, I saved it and think I have invented a new maneuver... I call it the "Oh sh--!". You guys are right about crash damage, sometimes it's hard to see tiny cracks or the beginnings of gear wear. It sucks when you loose your heli due to parts failure, just last month the belt snapped on my Trex450 and it went into a tree... lotta bad luck lately.

01-03-2007 Over year old.

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e-MS Composit Hornet > Conical pinion wear & esc issues

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