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Old Dec 25, 2012, 09:31 AM
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Maybe a dumb question

[QUOTE=Steve_;23615763]Flew all night long. It's awesome. The wind was minimal, a 5 Mph breeze, if that.
Doesn't seem to help much in 7 mph+ though.

I'm really getting sick of these motor issues.

The main motor was installed last week, and the brushes are almost worn away.
Of course, I've flown it constantly, but still... a week?


As I've stated before I have basically no electronics knowledge so this could be totally wrong.

By trimming the blades and thereby needing more throttle to fly, wouldn't the fact that you're pouring more juice to the motor for the same amount of lift cause the brushes to wear out faster?
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Old Dec 25, 2012, 09:46 AM
Cranky old fart
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...............
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Old Dec 25, 2012, 10:01 AM
Just a 9116 flyer.
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Steve, et al,
I still haven't received my heli yet, so I have no idea on the physical dimensions or specs of the main motor.

You say that you think it's a 3 Volt motor running hard.

Has anyone tried any other types of motors?
Such as Johnson, Mabuchi etc?
viz; > http://www.mabuchi-motor.co.jp/
Try > Web catalogue > search by application.
Possibly > FC-130RA.

Just a suggestion, seeing as the originals don't last long.
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Old Dec 25, 2012, 10:07 AM
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Old Dec 25, 2012, 10:20 AM
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Old Dec 25, 2012, 10:55 AM
Just a 9116 flyer.
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& the FK180SH states.."0.3 to 14 Watts."
> http://www.mabuchi-motor.co.jp/cgi-b...AT_ID=fk_180sh

May not have the grunt req'd?
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Old Dec 25, 2012, 10:59 AM
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Old Dec 25, 2012, 11:01 AM
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Old Dec 25, 2012, 11:16 AM
Just a 9116 flyer.
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Ah well, I'll just have to have a few lotsa spares handy.

(Now, where's that darn piggy bank run off to?)

May I remind people to bed the brushes in before any real flying takes place.
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Old Dec 25, 2012, 11:33 AM
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Do it or don't?

[QUOTE=Balr14;23615970]
Quote:
Originally Posted by Pa flyer View Post

Not always. Electric motors have a "happy range" where they are the most efficient, which is often higher rpms and lighter loading. The stock blades have lots of resistance, so higher motor loading. For example, Xtreme motors are usually referred to as "hot rewinds"; they love high rpm and low loads. They have been know to burn out ESCs and PCBs when used in conjunction with stock blades on a variety of heli models, because the current draw is too much, due to blade resistance.
So Bair14, based on your experience and taking Steve's post #229 into consideration, what's your educated guess? Should I trim my blades or not when using stock motors?
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Old Dec 25, 2012, 12:00 PM
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Old Dec 25, 2012, 12:18 PM
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Old Dec 25, 2012, 12:19 PM
Ain't crashing often anymore
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Quote:
Originally Posted by Steve_ View Post

Everybody kind of blew off my rants about this motor running way out
of spec, but here it is in black and white.

In the end, the only motors that can take the abuse that helicopters demand
are brushless. End of story. Even the coreless motors have tiny brushes that
wear out quickly.
Was there months ago, bro.
BUT:
This bird is a cheap toy in a "hobby grade tuxedo". What do you expect of such a thing? Flying abilities and endurance of a Hirobo Quark?
You MAY get around there, a lot of money involved, more time, a lot of try and error (even more money...) and what is left? A frankenstein heli with a vague rest of the original 9116 appearence. And paid more than simply buying a better heli after you're outgrown of the 9116 (which doesn't take long - 4 weeks regular flying at best).
Yes, I know you already have sth. better, Steve.
Yes, I know you're doing this mod-overkill on the 9116 just for fun.
But your intentions/inventions make other users think this has to be.
And makes them unhappy with their own stock 9116.
So don't rant at the flaws of this bird, please (I cursed often enough because of it, and still do sometimes when a friend brings his destroyed one for a repair...)

As I wrote some times ago:
I appreciate it what you are doing with this bird, it makes me flabbergasted sometimes and often enough chuckling because of you humor.

To all other beginners with a (maybe) brand new 9116:
It is a cheap, stable, easy repairable beginners heli and meant so. Do not expect too much of it. Do not hesitate asking questions here, but do not hesitate also changing to a better machine if you start to be unhappy or feel outgrown of it.

-mike-
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Old Dec 25, 2012, 12:48 PM
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just a quick question, how do people mount the 808 keychain camera to their bird without shaking?
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Old Dec 25, 2012, 12:58 PM
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