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Home✈️Aircraft🚁HelicopterHelicopter Main Discussion › lots of 14SG and cgy750 for sale, why?
06-27-2015 01:13 AM  4 years ago
Aaron29

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I bet I would have no clue. Do I win?

Heh I have a full size Silverline VBar. Do I need to upgrade to floating doohickey? What would it do that a non-floating point wouldn't?
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06-27-2015 01:19 AM  4 years ago
EEngineer

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TX

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full size Silverline VBar
Open her up and write down the part #s of the ICs.

Post them here, and I'll let you know what you have....
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06-27-2015 01:42 AM  4 years ago
Aaron29

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USA

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No warranty to avoid breaking but nonetheless busting this thing open not gonna happen.

Heh, I'll just fly it. In ignorance of my floatypointydom.

But seriously, what will a FPU do that one without won't? From a user perspective. Better lock?
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06-27-2015 02:02 AM  4 years ago
EEngineer

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TX

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Not sure what's in the Silverline...mine are employed, too...so that's why I wanted you to open yours up......

The MiniV just processes the inputs from the 3 analog outputs of the gyros, processes the inputs from the Sat RXs, and uses the USB IC to interface to your PC.

Analog output gyros are now obsolete, the ICs have been manufactured since 2013...have been replaced by digital output gyros(less prone to noise interference).

Would assume the Silverline has such gyros, but Vstabi doesn't say much...just that it's "more advanced"....remember, the ChiComs ripped off Vstabi with the KBar and the Ikon looks pretty similar, too....but, I stick to the Kbar ripoff.

The sat RX's used by the MiniV use a "WiFi" transceiver IC for DSM, DSM2, etc.

Doesn't really need FP to do it's job. The 8086 and it's co-processor can't really be compared to these FBL processors.

The 8086 also needed an interrupt controller....also, separate I/O ICs, etc.

The MC56F8322 has extensive interrupt architecture to rapidly prioritize and process all the data coming in...as well as having the built in hardware to interface to other ICs....but this IC, too, has reached it's "end of life" and is obsolete.
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06-27-2015 02:03 AM  4 years ago
Aaron29

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So it's marketing garbage.
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06-27-2015 02:08 AM  4 years ago
EEngineer

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TX

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So it's marketing garbage.
What is?
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06-27-2015 02:10 AM  4 years ago
Aaron29

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USA

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Floating point unit FBL system.

To the layperson, if it flies the same, this would be marketing noise, and nothing else.
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06-27-2015 02:11 AM  4 years ago
EEngineer

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I didn't say that an FBL system used FP processing....someone else did.
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06-27-2015 02:40 PM  4 years ago
Four Stroker

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Atlanta

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LOL. I think we can safely assume that no FBL unit has any floating point.
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06-27-2015 02:57 PM  4 years ago
rexxigpilot

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Wouldn't say that at all. A processing chip that is designed to do FP operation will process data from the gyros much quicker than a non-FP chip operating at the same clock speed. It makes sense to use a FP if the cost is within reason.

Back when the Intel 8086 came out in XT class PCs, AutoCAD was just getting started. AutoCAD was so slow on an XT class machine without the 8087 coprocessor that it was virtually unusable. Non-FP processors can do FP operations, but it has to manipulate the data so much to do so that it loses significant performance.

I believe the V-Bar Silver uses the same gyros as the Futaba CGY750 - Silicon Sensing Pinpoint CRM100 and 2 CRM200. These have both analog and digital outputs.
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06-27-2015 05:37 PM  4 years ago
Aaron29

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USA

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Y'all just let me know when my Silverline is out of date, K?
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06-27-2015 05:50 PM  4 years ago
alexf1852

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Y'all just let me know when my Silverline is out of date, K?
It's out of date already. Vbar NEO anyone?
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06-28-2015 04:34 AM  4 years ago
rpat

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Weirton, W. Va.

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You know I love RR. Where else can you go for free and watch someone put their head on the guillotine block (Aaron)and have someone come and pull the cord on it(Aex). What great entertainment this is! trex 700fbl cal30,minititan,, trx600fbl,trex250,logo 500,Velocity N2
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06-28-2015 05:22 AM  4 years ago
BobOD

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New York- USA

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Your old vbar won't be out of date just yet.
Unless you get into the rescue stuff, which is interesting but I got bored of it years ago.
But, you know how this industry goes. The next thing that'll happen is all the higher performing servos will come out of the woodwork now that Mikado has finally hardened their input power regulation. The vbars had the regulator circuit of a park flyer so these servos would cause all kinds of power problems. Now solved with the neo.
Next thing you know, you won't be able to buy a servo that's vbar friendly. Ka-ching.
Team POP Secret
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06-28-2015 05:52 AM  4 years ago
Aaron29

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USA

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When the servos I've got can't be serviced, I'll upgrade then.

But I got four flights on the Logo today. Flew the bejeezus out of it. Guess I forgot to tell it that it was out of date. Things are so advanced in this hobby, you're probably joking yourself if you think your rig is holding you back.

I fly what I have until it's wore out then buy the latest/greatest. Heck, by then, the NEO might be an older model to something new. That's what happened to me and my Silverline. I never owned a Blueline because by the time I went from FB to FBL, the Silverline was the thing.

Oh, and VBar regulator circuit? Power problems? Care to explain? Mine's setup with BLS252's. Esc gives 5.4 volts. Never had a power hiccup whatsoever.

Now there's a pile of Silverlines for sale in the classifieds. Maybe that's the way to fly. Buy perfectly good stuff when it's no longer cutting edge for half what it's worth. Probably a case to be made for that with these 14SG's.
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07-21-2015 09:10 AM  4 years ago
Otatiaro

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Metz - France

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Hello,

Why is floating point a good thing .....

Well first, be honest, 50% marketing bull****

But the other 50% is no bull**** at all. Any processor can manipulate floating point values, but if you don't have hardware floating point unit, it runs hundreds times slower (around 300 times slower, sometimes even worse).

What makes the connected feeling of a fbl unit is mainly the speed at which you react to user inputs and sensor changes. Having hardware floating point unit makes it possible to run the calculation loop so much faster you get a really connected, smooth yet very agile feeling.

At the end of the day, the only thing that's important is how much you enjoy flying your helicopter, and I think (based on pilots feedback) we made quite a good job at it.

Thomas.
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07-21-2015 12:50 PM  4 years ago
MartyH

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USA

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The next generation FBL helis after the floating point processor controllers will have flybars!
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07-22-2015 02:53 AM  4 years ago
tauscnc

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Joliet IL

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I've had this discussion about model match before. I switched from Futaba >15 yrs ago and when MM came out I was on board (switched from JR to Spektrum). I have now switched from JR/Spektrum to Jeti. If you have not started a model on the wrong model, yet, its just a matter of time. Just happened to a fellow flier of ours a few months back who also thought it would never happen to him.

For me, the futaba guys who say they don't need MM have not used the wonder that is MM or are simply brand loyal. For me, no MM, is a deal breaker. To know you are on the right model every time is like a breath of fresh air. It would be like going back to 72 mhz and freq pins. Why? When better is available.

Brand loyalty is a poor reason to stay with the same product. If that product is not moving forward neither are you. I don't see futaba as moving forward any more. No model match and that limp antenna! Aggg. With the new Vbar radio and Jeti, etc. - telemetry they provide, programming, MM, etc. these other guys better step up the game. Heck, even the FlySky looks more impressive!

I'm all for MM. Should be a basic safety requirement in all radios now a days.
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07-22-2015 07:48 AM  4 years ago
mookie

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UK

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"Brand loyalty is a poor reason to stay with the same product. If that product is not moving forward neither are you. I don't see futaba as moving forward any more. No model match and that limp antenna! Aggg. With the new Vbar radio and Jeti, etc. - telemetry they provide, programming, MM, etc. these other guys better step up the game. Heck, even the FlySky looks more impressive!"

Futaba Has Telemetry
Limp antenna? Dunno what you mean
Programming - just learn how to do it
Industrial Bullet proof Link never had a drop out and yet seen others fail.

As for MM, yeah i have done it a couple of times, but before i start any of my machines i do a throttle check and a flight controls check. who does'nt?!

I think there is a reason why people have brand loyalty to Futaba.
valve boy!
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07-22-2015 10:28 AM  4 years ago
tauscnc

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Joliet IL

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True people do stay with a particular brand for many reasons. They all have their ups and downs. Hopefully they will all incorporate, what I would say "basic" safety features such as MM, stick and switch warnings on startup, heck even voice (I love it) etc. in every radio soon. To each their own

Will see what the new futaba radio brings to the table. Glad it's closing the price gap from their flagship radio too.
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Home✈️Aircraft🚁HelicopterHelicopter Main Discussion › lots of 14SG and cgy750 for sale, why?
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