Originally Posted by OrangeBird

Hi PonyMan

Me, I have the RealFlight 6 with all 8 expansion packs, I love it . I can fly in bad days.......

You know you can upgrade to 6.5 for free!

sorry guys, not trying to hi-jack this v912 thread. Let's keep this v912 thread on topic, my apologies.

Originally Posted by Makdaddy

Anyone have a good source to tail gears that does not take 3 weeks to get in the U.S.?
I just put in a new one and it stripped out in one flight. the brass gear on the motor looks great. Is there a mod to change this?
I have been searching but have not found anything.

Originally Posted by Makdaddy

Dave,

Yes I did, and also noticed they carry the HB tail and stuff too. I do not mind trying to use the original equipment but it looks like now I will have to change the motor and gear.
Not sure the motor was the problem but something caused it but the repair price just went up. I did the tail extension before I installed the new gear and am not sure what actually caused it to strip again. Just bad design I think.
I noticed I can get the whole DH 9116 tail boom assembly from T-mart for $5.85 shipped from US warehouse. Not sure if that will work though...
Please post when you do your upgrades with the Honey Bee motor. I am really interested.

Thx

Greg

If your helo is stripping the tail gear, it may be the pinion gear isn't in the right place. Tmart sent me a tail motor for my V913 that looks exactly like the V912 tail motor. They are the same motor as far as I can tell but the pinion on the V912 is set closer in to the motor. If I had the inclination or the tools I could have pulled the pinion out a few mms to make it fit but I'm not a tinkerer and felt the motor should be ready to go without any fixing. Whoever sent you your motors may be sending you a V913 tail motor. Any of the N40 size brushed motors will probably fit the gear housing but check the pinion placement.

As for tmart, they gave me the runaround for 6 weeks on the defective motor until PayPal finally forced them to refund it. Anyone else have problems getting a replacement or refund from Tmart?

Anyone wanting to try Mike's HB tail motor direct drive mod can find it here: https://www.rcgroups.com/forums/show...ect+drive+tail
Don

Don,
I have not replaced the origional motor yet, just the gear.
I did have an issue with Tmart on some skids for a V911. They sent me new ones without wanting the others back. The new ones were wrong also (did not have battery connectors and wiring as in picture) but they refunded my money. So far no problems with me.

Anyone know the correct diameter and length of the tail boom so I can replace it w/ a carbon fiber boom? Thanks!

Also wanted to update on some stuff I am doing to my v912..

I ordered the Esky Honey Bee CP3 tail motor, housing, blade, fin and heat sink from banggood, gonna do the direct drive mod. Those parts should be in soon and am looking forward to this mod along w/ a carbon tail boom.

I've also just purchased new servos, they just came in today too:
https://www.hobbyking.com/hobbyking/s...dProduct=37825

I also really want to go to a brushless main motor and so far, my first attempt has not worked out well.

I've picked up these parts so far:
Brushed to Brushless signal converter: http://www.thinkrc.com/xtreme-048-br...er-p-1520.html
5800Kv Brushless Motor: https://www.hobbyking.com/hobbyking/s..._Inrunner.html (Perfect direct fit)
20A ESC: https://www.hobbyking.com/hobbyking/s...dProduct=40684
10T Pinion: https://www.hobbyking.com/hobbyking/s...dProduct=15256

And a few other misc odds and ends to put it all together. However the problem is the brushed to brushless converter doesn't seem to work at all. Once everything is hooked up, it does light up and seems to initialize the motor and ESC but the throttle on the remote has no effect, the motor will not turn. I hooked everything up to my Spektrum receiver and Radio (without the converter) and the motor and ESC work just fine. So that kind of sucks, not sure whats up there.

So now, I'm thinking about replacing the stock receiver with something like this:
https://www.hobbyking.com/hobbyking/s..._Receiver.html
And adding a gyro: https://www.hobbyking.com/hobbyking/s...ock_Gyro_.html

Then using my ESC and brushless motor for the main, and a brushed ESC for the tail. And of course now I'm thinking, ok now I'm adding so much weight and cost to the heli is it worth it? I can just go buy a Blade 130x and be done

Thoughts?

Originally Posted by chillware

Anyone know the correct diameter and length of the tail boom so I can replace it w/ a carbon fiber boom? Thanks!

Also wanted to update on some stuff I am doing to my v912..

I ordered the Esky Honey Bee CP3 tail motor, housing, blade, fin and heat sink from banggood, gonna do the direct drive mod. Those parts should be in soon and am looking forward to this mod along w/ a carbon tail boom.

I've also just purchased new servos, they just came in today too:
https://www.hobbyking.com/hobbyking/s...dProduct=37825

I also really want to go to a brushless main motor and so far, my first attempt has not worked out well.

I've picked up these parts so far:
Brushed to Brushless signal converter: http://www.thinkrc.com/xtreme-048-br...er-p-1520.html
5800Kv Brushless Motor: https://www.hobbyking.com/hobbyking/s..._Inrunner.html (Perfect direct fit)
20A ESC: https://www.hobbyking.com/hobbyking/s...dProduct=40684
10T Pinion: https://www.hobbyking.com/hobbyking/s...dProduct=15256

And a few other misc odds and ends to put it all together. However the problem is the brushed to brushless converter doesn't seem to work at all. Once everything is hooked up, it does light up and seems to initialize the motor and ESC but the throttle on the remote has no effect, the motor will not turn. I hooked everything up to my Spektrum receiver and Radio (without the converter) and the motor and ESC work just fine. So that kind of sucks, not sure whats up there.

So now, I'm thinking about replacing the stock receiver with something like this:
https://www.hobbyking.com/hobbyking/s..._Receiver.html
And adding a gyro: https://www.hobbyking.com/hobbyking/s...ock_Gyro_.html

Then using my ESC and brushless motor for the main, and a brushed ESC for the tail. And of course now I'm thinking, ok now I'm adding so much weight and cost to the heli is it worth it? I can just go buy a Blade 130x and be done

Thoughts?

What you're doing is definitely worth it! The parts for this heli are cheap and readily available. Parts for the Blade are expensive and only a hand full of vendors sell them, that's "IF" they have them in stock. Once you have everything setup for the V912 it will be much more relaxing and enjoyable to fly; you wouldn't worry about crashing as again parts are cheap. On the contrary, flying the Blade would be much more stressful; you always have to be careful not to crash which makes it less enjoyable. They break easier than the V912 and parts are expensive!
Here is the CF tail boom you are looking for, I ordered 2 and will install when my tail motor decides to quit.
http://www.banggood.com/Wholesale-AT...3-p-66391.html

Some (maybe) interesting info regarding servo throws in the V912 with both the stock radio and a Turnigy 9x flashed with OpenTX.

As most of you know, the stock radio allows 3 throw ranges, low and high toggles with the upper left side momentary switch, and "turbo" mode by holding down the upper right momentary switch. As I understand it, these servos have approx. 60 degrees of total throw, or 30 degrees either side of center. I was curious how much of that throw was available from the various modes, so I plugged a spare servo into the PCB, mounted it on a piece of cardboard, and marked the throw at the various settings. Starting with the stock TX, this is what I got:

Low rate, 15 degrees each side
High rate, 20 degrees
High rate with turbo button, 30 degrees or full throw

Just for grins, I also checked it with my T9x. With extended limits enabled and set to max (125%), I got 35 degrees of throw in one direction, but 30 degrees the other way. Don't know the reason for the discrepancy, but I suspect it's operator error setting up the TX, I'm still learning this thing. Regardless, for those concerned with losing "turbo" mode by going to a different TX, you can stop worrying . As long as you can set extended limits, you should be fine. Hope this helps someone. Later.

Dave

Originally Posted by daved20319

Some (maybe) interesting info regarding servo throws in the V912 with both the stock radio and a Turnigy 9x flashed with OpenTX.

As most of you know, the stock radio allows 3 throw ranges, low and high toggles with the upper left side momentary switch, and "turbo" mode by holding down the upper right momentary switch. As I understand it, these servos have approx. 60 degrees of total throw, or 30 degrees either side of center. I was curious how much of that throw was available from the various modes, so I plugged a spare servo into the PCB, mounted it on a piece of cardboard, and marked the throw at the various settings. Starting with the stock TX, this is what I got:

Low rate, 15 degrees each side
High rate, 20 degrees
High rate with turbo button, 30 degrees or full throw

Just for grins, I also checked it with my T9x. With extended limits enabled and set to max (125%), I got 35 degrees of throw in one direction, but 30 degrees the other way. Don't know the reason for the discrepancy, but I suspect it's operator error setting up the TX, I'm still learning this thing. Regardless, for those concerned with losing "turbo" mode by going to a different TX, you can stop worrying . As long as you can set extended limits, you should be fine. Hope this helps someone. Later.

Dave

This is interesting; I'm still using the stock TX and it seems to work fine. Of course I can't compare it with any other TX as I don't have one. I'm still contemplating on getting a good TX but the programming and upgrading seems confusing. Is it really worth getting a good TX to fly my V912? Is there really a big difference with a good TX versus the stock? I have my eyes on this one but I don't know if it would make a world of difference over the stock TX. Any input would be appreciated.

http://www.banggood.com/Wholesale-Fl...2-p-47904.html

Originally Posted by vincent713

This is interesting; I'm still using the stock TX and it seems to work fine. Of course I can't compare it with any other TX as I don't have one. I'm still contemplating on getting a good TX but the programming and upgrading seems confusing. Is it really worth getting a good TX to fly my V912? Is there really a big difference with a good TX versus the stock? I have my eyes on this one but I don't know if it would make a world of difference over the stock TX. Any input would be appreciated.

http://www.banggood.com/Wholesale-Fl...2-p-47904.html

First, a disclaimer. I'm still very much a newb at all of this, and most of what I'm about to say is based on stuff I've read on this and other forums. So take it for whatever you think it's worth .

If all you ever intend to fly is the V912 or similar 4 ch. heli, especially in stock trim, you probably won't gain much, if anything, by getting a programmable radio. On the other hand, if you're flying a modified bird, or plan on moving to a 6 ch. at some time, it would probably be a worthwhile upgrade. Another advantage is being able to fly multiple helis with one radio, instead of having to have a TX for every one. Even with a stock V912, there are things you can do with a programmable TX that might improve the performance, although the differences probably won't be large.

The Flysky has a good reputation, my Turnigy is a slightly cheapened version of that TX. You're right, programming and upgrading IS confusing, and finding simple answers to complicated questions is always a challenge. Only you can decide if it's worth the work. I can't say that having a programmable TX is making me a better pilot, but I AM gaining a much better understanding of how these things are controlled. But it's a steep learning curve, and the information is all over the Internet instead of in a single good user's manual. The lack of documentation is probably the biggest single frustration in all of this for me, and I'm not just talking radios, here . And with that, I think I've rambled on long enough. Later.

Dave

Dave - thanks for your input, as of now I only fly the v911 and v912. I don't think I will ever get into a 6ch heli as I'm not into 3D flying. I don't think I need a good TX if it only makes a small different over my stock TX. I might upgrade to a fix pitch flybarless in the future but not any time soon. I fly to relax and relieve from stress; flying a cp heli would be too fast as I fly mostly in a confine area dealing with trees, houses and cars. I don't want to worry about not crashing and pouring more money into fixing a broken heli. This is one of the reason I don't want to get into cp heli. Right now I'm enjoying my 4ch fp heli, it's inexpensive to fix, fun to tinker with and not worry if I crash it. Thanks again for your input.

In the process of doing the servo testing posted above, I also decided to run up my motor with both radios, see if there was any difference. There wasn't, but I did notice that it was cutting out at full throttle, nor does is seem to be able to maintain full throttle anymore. This is still the original motor in this bird, it's got quite a few short flights on it, and has taken more than it's share of hard crashes. I've got an HBDD motor setup on the way, does it sound like it's time to change the main while I'm at it? Thanks.

Dave

Originally Posted by vincent713

This is interesting; I'm still using the stock TX and it seems to work fine. Of course I can't compare it with any other TX as I don't have one. I'm still contemplating on getting a good TX but the programming and upgrading seems confusing. Is it really worth getting a good TX to fly my V912? Is there really a big difference with a good TX versus the stock? I have my eyes on this one but I don't know if it would make a world of difference over the stock TX. Any input would be appreciated.

http://www.banggood.com/Wholesale-Fl...2-p-47904.html

You can get a better price on that TX here.

http://www.hobbypartz.com/79p-th9x-r...nel-radio.html

Originally Posted by Switchy

You can get a better price on that TX here.

http://www.hobbypartz.com/79p-th9x-r...nel-radio.html

actually the one i post comes with a receiver and free shipping. i might get this to build a project heli.

Originally Posted by vincent713

What you're doing is definitely worth it! The parts for this heli are cheap and readily available. Parts for the Blade are expensive and only a hand full of vendors sell them, that's "IF" they have them in stock. Once you have everything setup for the V912 it will be much more relaxing and enjoyable to fly; you wouldn't worry about crashing as again parts are cheap. On the contrary, flying the Blade would be much more stressful; you always have to be careful not to crash which makes it less enjoyable. They break easier than the V912 and parts are expensive!
Here is the CF tail boom you are looking for, I ordered 2 and will install when my tail motor decides to quit.
http://www.banggood.com/Wholesale-AT...3-p-66391.html

Excellent, thanks for the boom specs and the advice I'm going to keep moving forward with getting the main converted over to brushless.

I installed the new Turnigy servos last night and they are definitely quicker and stronger. The heli is a lot more responsive now! yaay! However shortly in to my first flight w/ the new servos my already failing tail gear fully stripped out (for the second time). Not yaay.. So now she's torn apart on the table waiting for the carbon fiber boom and the Esky direct tail drive motor to arrive in, then hopefully no more tail failures! ..

Oh and another note on the Turnigy servos is that I didnt have to do any re-wiring or reversing of anything like I've read some people had to w/ some other servos they've purchased. They went in and fit and worked just fine.

Before you buy an 9x (which I have) you might want to look into the Devo 7e or Devo 10 (which I also have). Look in rcforums for the thread. If you update it with deviation, you can fly, Walkera, DSMX, DSM2 and multiple others with one TX.
Add the module from your V911/V912 TX or you can buy just the TX module and you can also fly any Flysky. Add an Anylink module and the sky is the limit.