ESKY digital servo WARNING!!!!
08-30-2008 | 10:26 AM
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From: Beebe,
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ESKY digital servo WARNING!!!!
On the 24th flight of my new HBK2 it suddenly came back at me (tail in) ...I went full forward on the sticks and that did little to slow it down. I moved and cut the throttle as it passed me and luckily got away with little damage, scuffed up tail and main rotors. I found that my front servo was locked in the full up position, you could hear the motor just a spinning away but no movement. I am in the habit now of taking failed servos apart because often they can be fixed at no cost. Flipping a gear around 180 degrees and such.
Well there is a defect with the new esky digital servo EK2-508. There is enough room in the case at the back cover for the motor to slide back and disengage the pinion from the first gear! Thats what happened to mine, for whatever reason the motor loosened and slid back. I made an easy fix for this by simply CA gluing a piece of .060 plastic in the back cover over the motor. Now it cannot do that again, I repeated this with all 4 servos for safety's sake. I know they are cheap servos but I am impressed by how smooth they are for cheap servos LOL! This tip might save you some bux on servos and maybe save you from a bad crash.
Well there is a defect with the new esky digital servo EK2-508. There is enough room in the case at the back cover for the motor to slide back and disengage the pinion from the first gear! Thats what happened to mine, for whatever reason the motor loosened and slid back. I made an easy fix for this by simply CA gluing a piece of .060 plastic in the back cover over the motor. Now it cannot do that again, I repeated this with all 4 servos for safety's sake. I know they are cheap servos but I am impressed by how smooth they are for cheap servos LOL! This tip might save you some bux on servos and maybe save you from a bad crash.
08-30-2008 | 01:59 PM
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From: Beebe,
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RE: ESKY digital servo WARNING!!!!
Yea I am pretty sure considering I had the stick at full forward and it was still coming at me backwards fast. There was no crash....it slid in to the ground tail first with training gear on....but no hard blade strike or tip over...blades coasted to a stop. This heli has not been crashed yet. I messed with an aileron servo pushing on the pinion gear and it also popped loose very easy...the other two servo motors seemed in there pretty tight.
08-30-2008 | 04:27 PM
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From: BARNWELL,
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RE: ESKY digital servo WARNING!!!!
I jus ordered four of those servos along with another 3900Kv motor and yellow bare bones from JAG. I have 42 flights on the first one now, but hit the tree on the last one while trying nose-in (been doing that on the 22E and Black Hawk) and broke a couple of plastic bits in the head and stripped the main gear, which I ordered from US Hobby Supply. Bad timing for my crash (Thursday evening) because today I just got two batteries that I had ordered for it.
08-31-2008 | 08:25 AM
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From: Beebe,
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RE: ESKY digital servo WARNING!!!!
hfenn Bud you beat me by almost 20 flights before the crash...no surprise there!!
I got 26 in today before I ditched it. Have not flown in a week and it showed. Went to a new park near my house with super thick short grass, perfect crashing surface LOL! Wind out of the east so I had to fly with a tailwind to keep the sun out of my eyes, I hate flying with the wind behind me. Might have to get a different gyro, the stock one is ok for hovering but it kept letting the tail just turn 15-20 degrees at random in FF. Hard on a noob like me. Tried upping the gain but it did little. Got out of shape and did the old toilet bowl of death and WHAM. All I am doing at this point is flying forward tail in with a little turn here and there then flying it back to me backwards. I have not got the guts up to go side to side with any kind of speed yet....if I had a backup King I would probably give it a go.
The damage was pretty light, from what I can tell. Main Gear, blades, slight curve in tail boom (i can fix that). Gonna strip it and make sure the mainshaft is not bent. Time for a belt anyway. Going up a tooth on the pinion as well as lift seems very soft with any altitude, cranked up the pitch travel and I still think I need more speed.
enjoy your time off man
Tommy
I got 26 in today before I ditched it. Have not flown in a week and it showed. Went to a new park near my house with super thick short grass, perfect crashing surface LOL! Wind out of the east so I had to fly with a tailwind to keep the sun out of my eyes, I hate flying with the wind behind me. Might have to get a different gyro, the stock one is ok for hovering but it kept letting the tail just turn 15-20 degrees at random in FF. Hard on a noob like me. Tried upping the gain but it did little. Got out of shape and did the old toilet bowl of death and WHAM. All I am doing at this point is flying forward tail in with a little turn here and there then flying it back to me backwards. I have not got the guts up to go side to side with any kind of speed yet....if I had a backup King I would probably give it a go.The damage was pretty light, from what I can tell. Main Gear, blades, slight curve in tail boom (i can fix that). Gonna strip it and make sure the mainshaft is not bent. Time for a belt anyway. Going up a tooth on the pinion as well as lift seems very soft with any altitude, cranked up the pitch travel and I still think I need more speed.
enjoy your time off man
Tommy
08-31-2008 | 08:03 PM
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From: Zürich, Schweiz
RE: ESKY digital servo WARNING!!!!
HA! I called like 2 months ago that teh digi eskys are still crap.
THEY FRIED UP in the air...
BTW, Mystery 30A ESC
Mystery 5000kv
Esky 25A ESC
are firehazards too
Go with hi-tec or Towerpro, they don't fail but they do chip fairly easy (That means if you crash, it's more volunerable than Esky)
THEY FRIED UP in the air...
BTW, Mystery 30A ESC
Mystery 5000kv
Esky 25A ESC
are firehazards too
Go with hi-tec or Towerpro, they don't fail but they do chip fairly easy (That means if you crash, it's more volunerable than Esky)
09-01-2008 | 11:51 PM
#8
RE: ESKY digital servo WARNING!!!!
Ha! and like I said 2 months ago in your first thread........... right.......[sm=50_50.gif][sm=50_50.gif]
Tommy, good catch on the servo motor thing! And good fix too. Thanks for the how to pics and the clarity to explain the issue along with a fix. So many of the guys are just posting horror storys with little to no explanation. As I have stated many times before a lot of the issues are nothinhg more than crash related or inexperience problems which easily get blamed on the manufacturor. Yours is a justified problem with a fix included. Very refreshing to see someone find fault and then offer a easy fix to solve the issue. My hat is off to you!
__________________________________________________ ___________________________________
Of all the things I ever lost....................................... I miss my mind the most!
Tommy, good catch on the servo motor thing! And good fix too. Thanks for the how to pics and the clarity to explain the issue along with a fix. So many of the guys are just posting horror storys with little to no explanation. As I have stated many times before a lot of the issues are nothinhg more than crash related or inexperience problems which easily get blamed on the manufacturor. Yours is a justified problem with a fix included. Very refreshing to see someone find fault and then offer a easy fix to solve the issue. My hat is off to you!
__________________________________________________ ___________________________________
Of all the things I ever lost....................................... I miss my mind the most!
09-02-2008 | 04:55 PM
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RE: ESKY digital servo WARNING!!!!
ORIGINAL: ArrowNaughtic
Ha! and like I said 2 months ago in your first thread........... right.......[sm=50_50.gif][sm=50_50.gif]
Tommy, good catch on the servo motor thing! And good fix too. Thanks for the how to pics and the clarity to explain the issue along with a fix. So many of the guys are just posting horror storys with little to no explanation. As I have stated many times before a lot of the issues are nothinhg more than crash related or inexperience problems which easily get blamed on the manufacturor. Yours is a justified problem with a fix included. Very refreshing to see someone find fault and then offer a easy fix to solve the issue. My hat is off to you!
__________________________________________________ ___________________________________
Of all the things I ever lost....................................... I miss my mind the most!
Ha! and like I said 2 months ago in your first thread........... right.......[sm=50_50.gif][sm=50_50.gif]
Tommy, good catch on the servo motor thing! And good fix too. Thanks for the how to pics and the clarity to explain the issue along with a fix. So many of the guys are just posting horror storys with little to no explanation. As I have stated many times before a lot of the issues are nothinhg more than crash related or inexperience problems which easily get blamed on the manufacturor. Yours is a justified problem with a fix included. Very refreshing to see someone find fault and then offer a easy fix to solve the issue. My hat is off to you!
__________________________________________________ ___________________________________
Of all the things I ever lost....................................... I miss my mind the most!
Seriously now.
What would you suggest as an easy fix for a flaming ESC?
09-02-2008 | 06:38 PM
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From: Tehran, IRAN
RE: ESKY digital servo WARNING!!!!
Hey guys, I currently flying a hbk2. Last week I had a bad crash I broke some linkages and the starboard servo. So went to the LHS and bought the new servo(ek2-0500). After installing I found there is something wrong with it. Its speed is much lower than the old ones and its motor noise is much different with the others. so uninstalled it to find out what is the problem. The circuit board inside is far different with the old one. I just swaped the striped gear with the new one and still running the old servo.
does the e-sky have two version of it? Another difference is the part number is written on the new servo while the old ones have only the e-sky tag.
does the e-sky have two version of it? Another difference is the part number is written on the new servo while the old ones have only the e-sky tag.
09-02-2008 | 08:10 PM
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From: Macon,
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RE: ESKY digital servo WARNING!!!!
E-Sky from what I know has to different servos. One is analog like what you bought and then they have the EK2-0508 which is digital and you cannot mix them. Other words you have to run either all analog or all digital.
09-02-2008 | 10:48 PM
#12
RE: ESKY digital servo WARNING!!!!
ORIGINAL: Empty Wallet
Sooooo.......
Seriously now.
What would you suggest as an easy fix for a flaming ESC?
ORIGINAL: ArrowNaughtic
Ha! and like I said 2 months ago in your first thread........... right.......[sm=50_50.gif][sm=50_50.gif]
Tommy, good catch on the servo motor thing! And good fix too. Thanks for the how to pics and the clarity to explain the issue along with a fix. So many of the guys are just posting horror storys with little to no explanation. As I have stated many times before a lot of the issues are nothinhg more than crash related or inexperience problems which easily get blamed on the manufacturor. Yours is a justified problem with a fix included. Very refreshing to see someone find fault and then offer a easy fix to solve the issue. My hat is off to you!
__________________________________________________ ___________________________________
Of all the things I ever lost....................................... I miss my mind the most!
Ha! and like I said 2 months ago in your first thread........... right.......[sm=50_50.gif][sm=50_50.gif]
Tommy, good catch on the servo motor thing! And good fix too. Thanks for the how to pics and the clarity to explain the issue along with a fix. So many of the guys are just posting horror storys with little to no explanation. As I have stated many times before a lot of the issues are nothinhg more than crash related or inexperience problems which easily get blamed on the manufacturor. Yours is a justified problem with a fix included. Very refreshing to see someone find fault and then offer a easy fix to solve the issue. My hat is off to you!
__________________________________________________ ___________________________________
Of all the things I ever lost....................................... I miss my mind the most!
Seriously now.
What would you suggest as an easy fix for a flaming ESC?
__________________________________________________ ___________________________________
Of all the things I ever lost....................................... I miss my mind the most!
09-03-2008 | 07:14 AM
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CA
RE: ESKY digital servo WARNING!!!!
They used to epoxy the motors in place at the factory against a little shim of plastic like material. I take it there not doing it anymore. Just another way of cutting costs on their end.
Like steel wire for motor and ESC wires so they cut through the insulation and short against each other [>:].
Like steel wire for motor and ESC wires so they cut through the insulation and short against each other [>:].
09-03-2008 | 05:30 PM
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From: Tehran, IRAN
RE: ESKY digital servo WARNING!!!!
ORIGINAL: 46u
E-Sky from what I know has to different servos. One is analog like what you bought and then they have the EK2-0508 which is digital and you cannot mix them. Other words you have to run either all analog or all digital.
E-Sky from what I know has to different servos. One is analog like what you bought and then they have the EK2-0508 which is digital and you cannot mix them. Other words you have to run either all analog or all digital.
Trying to post some pics of them. The one on the boom is the stock one (same in the cyclic) the other is what i bought. both are ek2-0500 and analog but stock ones are faster servos. As you can see the electronic circuit inside are different but mechanisms are the same
09-03-2008 | 06:18 PM
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From: Beebe,
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RE: ESKY digital servo WARNING!!!!
hamid_fireage If you bought your HBK2 in the last 6 months more then likely it came with all digital servos ek2-508 . You more then likely purchased an analog servo. If you only lost one on the cyclic then you can take your tail servo and move it to the cyclic and use the one you bought on the tail. You cannot mix servos on the cyclic as this will lead to serious control issues. Cyclic servos MUST be matched sets.
ArrowNaughtic thx for the kind words....its no big deal, I just want to share what I know and help just like others have helped me. Everybody seems to want to say "It glitched, it messed up, its junk" when stuff goes wrong or there is a crash...I know what you mean. But I think 90% of the time its just pilot error, either in flying, exceeding the limits of the setup or in proper checks and maintenance.
ArrowNaughtic thx for the kind words....its no big deal, I just want to share what I know and help just like others have helped me. Everybody seems to want to say "It glitched, it messed up, its junk" when stuff goes wrong or there is a crash...I know what you mean. But I think 90% of the time its just pilot error, either in flying, exceeding the limits of the setup or in proper checks and maintenance.
09-03-2008 | 07:54 PM
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From: Macon,
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RE: ESKY digital servo WARNING!!!!
Tommyjoking just took one of my servos apart to shim and was wondering how you came up with .060 shim? Seems .075 to .080 might be better. I am just measuring the recess of the end cover and it seems to be about .095 deep I do understand you want it to me a little thinner for the wires and so on.
09-03-2008 | 08:12 PM
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From: Beebe,
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RE: ESKY digital servo WARNING!!!!
LOL!! .060 was the only size polycarbonite I had laying around. I think the .060 would prevent it from going to far. But your right there is enough room for a thicker shim then that. That would probably be better actually long as you don't have to stand on it to close it
09-03-2008 | 08:41 PM
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From: Macon,
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RE: ESKY digital servo WARNING!!!!
I found some .060 old CD case so that is what I am going to try and thanks for the tip about this problem and a way to fix it.
09-04-2008 | 12:01 AM
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From: Hackettstown, NJ
RE: ESKY digital servo WARNING!!!!
ORIGINAL: ArrowNaughtic
The only flaming thing I see in these forums is yourself. You are too poorly educated to see the truth........like I said before you are not worth the time. You have also made my blocked list. Goodbye and best of luck to you.......................NOT!!!!
ORIGINAL: Empty Wallet
Sooooo.......
Seriously now.
What would you suggest as an easy fix for a flaming ESC?
ORIGINAL: ArrowNaughtic
Ha! and like I said 2 months ago in your first thread........... right.......[sm=50_50.gif][sm=50_50.gif]
Tommy, good catch on the servo motor thing! And good fix too. Thanks for the how to pics and the clarity to explain the issue along with a fix. So many of the guys are just posting horror storys with little to no explanation. As I have stated many times before a lot of the issues are nothinhg more than crash related or inexperience problems which easily get blamed on the manufacturor. Yours is a justified problem with a fix included. Very refreshing to see someone find fault and then offer a easy fix to solve the issue. My hat is off to you!
__________________________________________________ ___________________________________
Of all the things I ever lost....................................... I miss my mind the most!
Ha! and like I said 2 months ago in your first thread........... right.......[sm=50_50.gif][sm=50_50.gif]
Tommy, good catch on the servo motor thing! And good fix too. Thanks for the how to pics and the clarity to explain the issue along with a fix. So many of the guys are just posting horror storys with little to no explanation. As I have stated many times before a lot of the issues are nothinhg more than crash related or inexperience problems which easily get blamed on the manufacturor. Yours is a justified problem with a fix included. Very refreshing to see someone find fault and then offer a easy fix to solve the issue. My hat is off to you!
__________________________________________________ ___________________________________
Of all the things I ever lost....................................... I miss my mind the most!
Seriously now.
What would you suggest as an easy fix for a flaming ESC?
You have really hurt my feelings.[&o][&o]
Is this where im supposed to go boo-hooing to the forum monitor?
Guess I should tear up my Electrical Eng. degree from Penn State then huh?
I never knew it took an education to see the truth.
I thought it only required a pair of open eyes.
You obviously understood the point in the question I have asked you. (that you wont answer)
You insulted Homeunt 2 months ago and blamed him for his problems, just as you have done so here, and to others in the past in other threads.
But you really dont know if it was truly his fault or defective manufacturing.
But yet you'll make assumption, and insult him anyway.
Is it because you are so smart?
Or are you just used to looking down your nose at other people?
09-04-2008 | 05:49 AM
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RE: ESKY digital servo WARNING!!!!
actually Hamid they have 3 servos that have been available
2 analog and one digital
1 analog is for the tail and one analog was made for the cyclic, unfortunatly they use the same part number
] NO way to tell them apart except by operating them by hand. Which means its a coin toss which one you get when you bought them at the LHS.
If you have several you can tell the diff by carefully moving the arms by hand, the ones that are used for the cyclic move very slowely and feel geared down, the ones for the tail moves rather faster and needs much less force to move the arm.
Do not mix them! If you have a tail and cyclic as the tail one will move faster then the other cyclics and cause strange control problems, you can use the cyclic in the tail but not the tail in the cyclic. Also the tail will fail in short order if used in the cyclic even if all three are tail, it seems it can't handle the extra load.
I would suggest you check all your servos and put 3 that match together for your cyclic and the one that doesn't match for the tail (whether it is digital or not) just dont mix one digital into your cyclic or a tail into your cyclic and you will be ok. Actually you can buy much better (tighter) servos for about the same or less that will pretty much bolt right in. You will see a big diff right away in more precise handleing. Tower Pro 9 comes to mind as one. Stay away from Hitech 50 as it is too small (designed for 1/2A planes and small park flyers) and the HS 55 tend to strip gears and have centering problems with the stock tx.
2 analog and one digital
1 analog is for the tail and one analog was made for the cyclic, unfortunatly they use the same part number![
] NO way to tell them apart except by operating them by hand. Which means its a coin toss which one you get when you bought them at the LHS.If you have several you can tell the diff by carefully moving the arms by hand, the ones that are used for the cyclic move very slowely and feel geared down, the ones for the tail moves rather faster and needs much less force to move the arm.
Do not mix them! If you have a tail and cyclic as the tail one will move faster then the other cyclics and cause strange control problems, you can use the cyclic in the tail but not the tail in the cyclic. Also the tail will fail in short order if used in the cyclic even if all three are tail, it seems it can't handle the extra load.
I would suggest you check all your servos and put 3 that match together for your cyclic and the one that doesn't match for the tail (whether it is digital or not) just dont mix one digital into your cyclic or a tail into your cyclic and you will be ok. Actually you can buy much better (tighter) servos for about the same or less that will pretty much bolt right in. You will see a big diff right away in more precise handleing. Tower Pro 9 comes to mind as one. Stay away from Hitech 50 as it is too small (designed for 1/2A planes and small park flyers) and the HS 55 tend to strip gears and have centering problems with the stock tx.
09-04-2008 | 05:40 PM
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From: Tehran, IRAN
RE: ESKY digital servo WARNING!!!!
ORIGINAL: Tommyjoking
hamid_fireage If you bought your HBK2 in the last 6 months more then likely it came with all digital servos ek2-508 . You more then likely purchased an analog servo. If you only lost one on the cyclic then you can take your tail servo and move it to the cyclic and use the one you bought on the tail. You cannot mix servos on the cyclic as this will lead to serious control issues. Cyclic servos MUST be matched set
hamid_fireage If you bought your HBK2 in the last 6 months more then likely it came with all digital servos ek2-508 . You more then likely purchased an analog servo. If you only lost one on the cyclic then you can take your tail servo and move it to the cyclic and use the one you bought on the tail. You cannot mix servos on the cyclic as this will lead to serious control issues. Cyclic servos MUST be matched set
Actually i bought mine 6-7 mounth ago. Refering to its manual they're 0500. I downloaded new king's manual from the official site and in the new manual they're 0508. Thats why i think they are non digital servos. But the first thing which I've learned form the e-sky is; not to rely on their manuals, and you may right.
Anyway i didnt use it I just replaced the stripped gear and still using the repaired servo in the cyclic without any problem. Just wasted around $10 bucks for a stripped gear,LOL.
09-04-2008 | 06:14 PM
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From: Tehran, IRAN
RE: ESKY digital servo WARNING!!!!
ORIGINAL: funflier
actually Hamid they have 3 servos that have been available
2 analog and one digital
1 analog is for the tail and one analog was made for the cyclic, unfortunatly they use the same part number![] NO way to tell them apart except by operating them by hand. Which means its a coin toss which one you get when you bought them at the LHS.
If you have several you can tell the diff by carefully moving the arms by hand, the ones that are used for the cyclic move very slowely and feel geared down, the ones for the tail moves rather faster and needs much less force to move the arm.
Do not mix them! If you have a tail and cyclic as the tail one will move faster then the other cyclics and cause strange control problems, you can use the cyclic in the tail but not the tail in the cyclic. Also the tail will fail in short order if used in the cyclic even if all three are tail, it seems it can't handle the extra load.
I would suggest you check all your servos and put 3 that match together for your cyclic and the one that doesn't match for the tail (whether it is digital or not) just dont mix one digital into your cyclic or a tail into your cyclic and you will be ok. Actually you can buy much better (tighter) servos for about the same or less that will pretty much bolt right in. You will see a big diff right away in more precise handleing. Tower Pro 9 comes to mind as one. Stay away from Hitech 50 as it is too small (designed for 1/2A planes and small park flyers) and the HS 55 tend to strip gears and have centering problems with the stock tx.
actually Hamid they have 3 servos that have been available
2 analog and one digital
1 analog is for the tail and one analog was made for the cyclic, unfortunatly they use the same part number![
] NO way to tell them apart except by operating them by hand. Which means its a coin toss which one you get when you bought them at the LHS.If you have several you can tell the diff by carefully moving the arms by hand, the ones that are used for the cyclic move very slowely and feel geared down, the ones for the tail moves rather faster and needs much less force to move the arm.
Do not mix them! If you have a tail and cyclic as the tail one will move faster then the other cyclics and cause strange control problems, you can use the cyclic in the tail but not the tail in the cyclic. Also the tail will fail in short order if used in the cyclic even if all three are tail, it seems it can't handle the extra load.
I would suggest you check all your servos and put 3 that match together for your cyclic and the one that doesn't match for the tail (whether it is digital or not) just dont mix one digital into your cyclic or a tail into your cyclic and you will be ok. Actually you can buy much better (tighter) servos for about the same or less that will pretty much bolt right in. You will see a big diff right away in more precise handleing. Tower Pro 9 comes to mind as one. Stay away from Hitech 50 as it is too small (designed for 1/2A planes and small park flyers) and the HS 55 tend to strip gears and have centering problems with the stock tx.
I've checked all old 4 servos by hand and i think they're all the same. Their arms moving so smoothly. The new one i bought moving much harder by hand and has more torque during operation but less speed comparing to others. I think they used that tail servo for all mechanical parts.
I currently have a belt cp bare bones and wanted to buy 4 e-sky 0500 for it but now i have some doubt about it. I will check your suggestion if its available in my LHS.
I just wondred why they have two types of diff products with the same part number!!!
If i killed another servo definitely I wouldnt buy any e-sky servos.
Do you know some where wich sells e-sky servo gears for cheap price?
Thanks again
09-04-2008 | 09:19 PM
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From: gilbert, AZ
RE: ESKY digital servo WARNING!!!!
BEWARE!!!!
Installing too thick of a shim can do just the opposite of what you want. My tail servo locked up mid flight and caused me to crash please be very careful when putting shims in.
Installing too thick of a shim can do just the opposite of what you want. My tail servo locked up mid flight and caused me to crash please be very careful when putting shims in.
09-05-2008 | 01:57 AM
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RE: ESKY digital servo WARNING!!!!
actually the slow ones are cyclic and the fast ones are always rudder. Your tail servo is always the fastest you can find with a decent amount of torque. Digital servos are usually among the fastest (by other people then Esky!).
