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itsparks
07-02-2008, 12:42 AM
Is the V-Bar Setup, for the logo 500 3d worth getting ? what will it benifit for the logo ? I was looking at getting it to have and learn and use, ? thoughts ?

LITHIUMSTATIC
07-02-2008, 01:28 AM
How are you going to be flying it? If your doing forward flight and circuts with loops and rolls then no. If your really putting the smack down on your heli then yes.

Don't get me wrong! They are really nice and cool but a bit over priced at this point in time.

OICU812
07-02-2008, 01:47 AM
Jase considering where you are at learning and flight wise it will do you absolutely no favours at this point to be honest.

itsparks
07-02-2008, 02:02 PM
Jase considering where you are at learning and flight wise it will do you absolutely no favours at this point to be honest.



Cool enough, but i wanted to buy it to learn about it, i know its not going to improve my skills, but it would be cool to have and learn more about.


I do appreciate your honesty too.!:YeaBaby:

Jase

billyd
07-02-2008, 02:34 PM
If you can afford the vstabi you should get it! Even if you can't fly it to its full abilities (I sure can't) you still can enjoy the increased efficiency and quiet (longer flight times) and additional stability.

Not to mention it's just very cool.

And if you like to tinker the software is a tinkerer's dream. I have my piro rate so high all I have to do is breath on the rudder, lol.

It's a blast.

itsparks
07-02-2008, 05:06 PM
If you can afford the vstabi you should get it! Even if you can't fly it to its full abilities (I sure can't) you still can enjoy the increased efficiency and quiet (longer flight times) and additional stability.

Not to mention it's just very cool.

And if you like to tinker the software is a tinkerer's dream. I have my piro rate so high all I have to do is breath on the rudder, lol.

It's a blast.

Cool, i wonder how hard it is to setup tho? it looks very complicated to setup, is it ? Do i need to also change my stock servos ? I am running the stock Ds815's i think, the stock digital servos that come with the DX7 Radio, however i do want to change them just in case because they are not exactly that fast and ive been told they are also not stable at all.

Jase,

Just food for thought, i am addicted to heli crack :YeaBaby::YeaBaby::YeaBaby::YeaBaby::YeaBaby::YeaB aby:

AusAnt
07-02-2008, 05:18 PM
I think that's a good idea Jase - first replace your DS821's with some good quality digital servos. It would be a shame to lose your heli because of a failed servo, and from what I have heard those ones do fail under load. I once heard somebody on here describe the DS821 as good for hovering but not much more.

Then, just like me, you can dream of V-bar one day :smokin:

I hear ya, by the way, that V-Bar does look awfully nice!

Ant

billyd
07-02-2008, 05:56 PM
Cool, i wonder how hard it is to setup tho? it looks very complicated to setup, is it ? Do i need to also change my stock servos ? I am running the stock Ds815's i think, the stock digital servos that come with the DX7 Radio, however i do want to change them just in case because they are not exactly that fast and ive been told they are also not stable at all.

Jase,

Just food for thought, i am addicted to heli crack :YeaBaby::YeaBaby::YeaBaby::YeaBaby::YeaBaby::YeaB aby:


Well it's as complex as you want to make it. By that I mean you can fly well with just the default setup (eg load the 5003d numbers into the module via software and fly). But as your skills improve you will want to tweak the parameters. Mikado has a wiki page with tons of help. It is complex, but it is also pretty much plug and play if you are not too particular (eg just doing sport flight, etc.). That being said I didn't have to change much to suit my style (light 3d sport flight). I had to increase the piro rate because the default setup is very slow there, and I also increased the pitch range. But that's all I did and it is an unbelievably hot setup (for me). The fastest moving heli I've seen. Initial setup involves servo centering and such, and the software pretty much walks you through that for the most part. If you can put a heli together properly and know how to use a typical windows based program, you'll figure it out.

I do have a very hot setup mechanically however, with the Orbit 25-8 motor 15t pinion and 8717's on the swash and 8900g on the tail. It's just insane. I'm sure if a better pilot flew it they would want to change more in the vstabi, but that's the beauty of it, you don't have to change it if your piloting skills still lean toward the beginner intermediate end of things. And as you get better your knowledge of the software and its effect on flight performance will grow with it.

itsparks
07-02-2008, 08:44 PM
Thanks for all the good help guys, ill watch to see when they come in stock, however i have a question about the 8717's, do i have to run a external BEC for them ? or can i use the jazz esc ? Im curently running everything thing off the built in bec on my jazz.



Jase

billyd
07-02-2008, 09:35 PM
No the buillt in bec on the Jazz won't do. You need something that can put out about 7 amps continuous. I use a UBEC from helidirect with a 3s 1320mah lipo. But there are plenty of choices. Some folks put a 2s lipo straight into the reciever and run at 8v with a step down to the vstabi and rudder servo.

Here's the UBEC I use, (except I am using it as a voltage regulator since it doesn't eliminate a battery):
http://www.helidirect.com/product_info.php?cPath=93&products_id=5211

Unfortunately it looks like it's sold out right now. Like I said there are plenty of other VR's out there that will do the job. But 5 amps is a little light for the 8717's so be sure whatever you pick does 7amps continuous or more. And the 8v option is good also, and your servos will be even faster (yes they can take it) I just like a regulated voltage so I don't do the 8v setup.

AusAnt
07-02-2008, 10:44 PM
I currently run the Western Robotics 5A continuous BEC. I have heard that this one is pretty conservatively rated and can handle a lot more. It never gets hot with my novice flying at this point.

However I do plan to change soon to a 2S Rx pack and run it direct to the Rx, and then use this Spektrum regulator just for the gyro and tail servo http://www.rcflightstore.com/product_info.php?cPath=60&products_id=1423

Given that a 2S pack and this regulator are not much different in cost to a decent external BEC, you could just go that route. It does give some nice redundancy. And particularly if you use 8717's - they are awesome servos but they are current hogs.

Ant

itsparks
07-02-2008, 11:16 PM
I currently run the Western Robotics 5A continuous BEC. I have heard that this one is pretty conservatively rated and can handle a lot more. It never gets hot with my novice flying at this point.

However I do plan to change soon to a 2S Rx pack and run it direct to the Rx, and then use this Spektrum regulator just for the gyro and tail servo http://www.rcflightstore.com/product_info.php?cPath=60&products_id=1423

Given that a 2S pack and this regulator are not much different in cost to a decent external BEC, you could just go that route. It does give some nice redundancy. And particularly if you use 8717's - they are awesome servos but they are current hogs.

Ant


Thanks ant, good to see you on here :P hows you doing ? long time no talk to, i do plan to get better servos, im past the hovering and staying still stage so i better upgrade,ken is so busy hardly any time to talk to him. Ill order new servos and the bec, i do have a apoggee 2cell lipo at 1500mah that i can use for now, i was hoping to eliminate all this mess in the heli but i guess i have to do it.

Another question,

If i buy the vbar system for the logo 500, do i get to ditch the gy401? did i read the manual right it comes with a gyro ? or do i need to have a gyro and the vstabi stuff ?

Jase

AusAnt
07-02-2008, 11:57 PM
The V-Bar is a 3-axis gyro, which means it replaces the normal tail gyro. (see, I don't have one but I know everything about them because I constantly drool over them ;)).

There are other flybarless systems like the SK 360 (developed by a guy in the Burnaby club over here) which is a 2 axis gyro (swash only), and therefore you keep your existing tail gyro. http://www.skookumrobotics.com/ He is one smart guy.

Ant

itsparks
07-03-2008, 12:06 AM
Sweet, then i will have a spare 401 then, im going to research this way more, and probably get it at end of summer, i do need new servos and bec then :(