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03-08-2012 08:47 AM  6 years agoPost 1
Eroto

rrApprentice

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Hi,
I was wondering if all you experienced gasser pilots have tabulated an excel sheet or other of some kind to input flight log details and maintenance schedule?
It would be nice to hear back from all of you
It came to my mind as I read somewhere, and I think it was from rbort a while back? about logging servo life? I don't know maybe?
or other maintenance schedules....
We could put one together with all the inputs we have and make one collectively - flight date, hours of flight, ....I don't know what else?
Perhaps also add what were the flying characteristics and what needs to be looked at before the next flying day?
Looking forward to hearing. This I believe may also help to prevent crashes too - at least from a maintenance point of view?
waiting to hear?
thanks for reading

fly adrenalin. if it AINT broken DON'T fix.

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03-08-2012 12:54 PM  6 years agoPost 2
theriddick45

rrVeteran

United States

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I use the note app of my iPhone there I have one that I called Heli parts here I write what I need, wish etc to buy. Every time I go to the hobby shop or online I check what I need.

Also I got another one that I call Heli tips here I copy all type of tips I read and my own experiences with different setup and maintenance. This way I got all the info in my pocket.

My 2 cents..... Hope this help

Suzi Janis 800e & 700e 3blade both w/Ikon

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03-08-2012 05:47 PM  6 years agoPost 3
Eroto

rrApprentice

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Sorry, I don't have an iPhone
but thanks for sharing

fly adrenalin. if it AINT broken DON'T fix.

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03-08-2012 09:41 PM  6 years agoPost 4
rbort

rrProfessor

Franklin, MA - USA

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I leanred from experience and counting flights
That the Futaba BLS servos are by far the most realiable of anything I tried, whether it was Hitec, JR or Futaba non BLS stuff.

You should always go over your machine after every flight session when you clean it and inspect things to be sure all is still 100% for the next flying day. That way the machine is always ready to go and if you see something that needs addressing, better to see it and fix it than to find out on the field. A good habit that will keep your crash count low

Also while flying I make mental notes of what I need to look into or do when I come home from the field, simple things like I need to change my helicommand settings to adjust the way the machine feels or the motor was not behaving right I need to check the carb for example.

-=>Raja.

MA 1005 Hanson 280, 4220 flts
Spectra 27 3DMax, 3310 flts
Whiplash V1-2 Hanson 300, 1618 flts
Whiplash V2 Hanson 300, 473 flts

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03-09-2012 01:49 AM  6 years agoPost 5
Eroto

rrApprentice

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hmmmmmm....

fly adrenalin. if it AINT broken DON'T fix.

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03-09-2012 02:41 PM  6 years agoPost 6
Pistol Pete

rrProfessor

Seffner, FL

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I leanred from experience and counting flights That the Futaba BLS servos are by far the most realiable of anything I tried, whether it was Hitec, JR or Futaba non BLS stuff.
Numbers?

1 flight = X minutes

FUT BLS last the longest with X amount of flights.

X brand lasted the least with X amount of flights.

That should give us a range to work with.

Thanks.

~~Enjoying the hobby one flight at a time~~

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03-09-2012 02:52 PM  6 years agoPost 7
Justin Stuart (RIP)

rrMaster

Plano, Texas

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It would make sense that a brushless servo would last longer in a high vibration environment than a brushed servo because with the brushless servos, there are no tiny little carbon brushes on springs which can rattle and break.

I don't have access to a dissecting microscope, and so I have never taken apart a brushed servo motor. But the springs inside have got to be incredibly tiny.

With the brushless servos, the only contacting part is really the potentiometer (and of course the gear train, but the health of the gear train can be assessed pretty easily just by turning the servo output arm).

So Raja's statement that Futaba BLS servos last a lot longer makes sense to me.

They are supposed to be working on some "hall effect sensor" servos that do away with the potentiometer. These servos should last forever, even on a gasser.

Avant RC
Scorpion Power Systems
Thunder Power RC
Kontronik Drives

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03-09-2012 03:23 PM  6 years agoPost 8
rbort

rrProfessor

Franklin, MA - USA

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Numbers
Hitec, 198 flights to servo failure and bad crash (burned in memory!)
Airtronics, around 250 flights
Futaba, 275-325 flights
JR 300-350 flights
Futaba BLS, 433 and still going strong.
Futaba BLS 251 tail servos, over 700 flights.

Different models last longer than others within the same brand. I only tried one Hitec model, 7966. Been so many years now trying to remember...I've tried Futaba 9202, 9252, 9252 definately much better than 9202. I've tried JR 8417, 8231, 8311 much better than 8417. I only tried airtronics 94758z, and 94774, about the same, better than hitec, worse than Futaba and JR.

Hitec and JR servos failures are usually deadly, the servo just stops moving in flight. Futaba and airtronics I only remember them starting to jump around center, not completely dead like Hitec or JR until horn is wiggled and it springs back to life. I did spend alot of time using JR servos, because every time one of them failed, sometimes I crashed and other times I got lucky and landed with minor or no damage, JR always replaced them for free with BNIB servos when sent back.

Bottom line is that basically JR and Futaba Non BLS servos are about the same lifespan. Key thing to know and remember is that BLS servos have a significantly longer life than the rest, so best to just use those and forget about the little differences between all the other brands.

-=>Raja.

MA 1005 Hanson 280, 4220 flts
Spectra 27 3DMax, 3310 flts
Whiplash V1-2 Hanson 300, 1618 flts
Whiplash V2 Hanson 300, 473 flts

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03-09-2012 03:41 PM  6 years agoPost 9
Pistol Pete

rrProfessor

Seffner, FL

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GREAT! Nice to have a reference.

Seems like 300 is a safe number to reference as MTBF on the two top brands.

Thanks again for sharing.

~~Enjoying the hobby one flight at a time~~

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03-09-2012 03:50 PM  6 years agoPost 10
rbort

rrProfessor

Franklin, MA - USA

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Yup
That's always been my thoughts too, 300 flights or 75 to 100 hrs max and then replace as routine maintenance.

-=>Raja.

MA 1005 Hanson 280, 4220 flts
Spectra 27 3DMax, 3310 flts
Whiplash V1-2 Hanson 300, 1618 flts
Whiplash V2 Hanson 300, 473 flts

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03-09-2012 05:21 PM  6 years agoPost 11
Pistol Pete

rrProfessor

Seffner, FL

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Futaba BLS, 433 and still going strong.
Looking forward to report on this one.

Should give a means of cost vs longevity when compared to your non BLS data.

~~Enjoying the hobby one flight at a time~~

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03-09-2012 05:24 PM  6 years agoPost 12
rbort

rrProfessor

Franklin, MA - USA

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They went in my 1005 at flight 2500
You can keep track of them that way, however, I may decide to take them out at 3000 flights and replace with new ones just as routine maintenance. We'll see...

-=>Raja.

MA 1005 Hanson 280, 4220 flts
Spectra 27 3DMax, 3310 flts
Whiplash V1-2 Hanson 300, 1618 flts
Whiplash V2 Hanson 300, 473 flts

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03-10-2012 01:47 PM  6 years agoPost 13
Eroto

rrApprentice

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Yes I took Raja's advise and went in for brushless.
I have yet to install and test them. I'm sure they'll be okay
that is for Gasser.

"so best to just use those and forget about the little differences between all the other brands."

I don't know what the little differences are, but, they are kinda pricey though Raja :/

Coming back to the subject of this post. I am looking to maintain a log sheet with schedules for the engine, spark plug, magneto,..etc..
For the heli on the bearings, what else... and the rest.
Anyone have a manual for the 270RC?

fly adrenalin. if it AINT broken DON'T fix.

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03-10-2012 04:56 PM  6 years agoPost 14
Justin Stuart (RIP)

rrMaster

Plano, Texas

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To record engine-on time, Ive got a HOBBS meter on mine (just like the real thing). I figured it would be more easy than trying to count flights and keep a log book.

Avant RC
Scorpion Power Systems
Thunder Power RC
Kontronik Drives

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03-11-2012 05:10 PM  6 years agoPost 15
Pistol Pete

rrProfessor

Seffner, FL

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Hobbs meter...

Do you actually have it set up to record engine "running" time (tacked?) or run of the mill system is energized?

~~Enjoying the hobby one flight at a time~~

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03-11-2012 06:59 PM  6 years agoPost 16
Justin Stuart (RIP)

rrMaster

Plano, Texas

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The meter records accumulated engine-on time, and so it records fractional hours whether the engine is at idle or at full speed. It does so by sensing the pulse in the spark plug cable, and so as a result, when the engine is on, it reads RPM, and when the engine is off, it reads total accumulated hours.

It has an internal battery that is supposed to last for 10 years. It does NOT run off the RX power.

I got the idea from my Honda generator which I am supposed to change the oil in every 50 hours. During the summer when I am flying a lot, 50 hours comes pretty quickly. But during the winter, I hardly use it at all. So I installed a Honda brand tach-hour meter. It makes it really to not change the oil too soon or too late. I just look at the hour meter, and when it reads 250 or 300 or 350, I change the oil.

I had to do a lot of investigating to find a tach/hour meter which would fit nicely into the servo bay of the Spectra. I got it from here:

http://www.enmco.com/

But if you don't care about the form factor, there are many kinds of cheap (~$30) tach/hour meters available on Ebay and from places that sell power equipment (snowblowers, etc).

Avant RC
Scorpion Power Systems
Thunder Power RC
Kontronik Drives

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