FLYBARLESS: Has it made your choice of airframe irrelevant?

[Paulo uk]

Following on from the end of this thread:

http://www.rcheliaddict.co.uk/main-d...-opinions.html


Its something I have always wondered. For example: If you took 2 distinctly different models, but which both share a similar power to weight ratio, have good head geometry for flybarless and have the exact same electronics installed. Could you set up say a v-Bar on one and then move the unit to the other - obviously making sure crucial set up is done, like servo and swash directions and notice any difference at all in flight characteristics and performance.

Mathematically speaking surely if the model has the same power to weight and the collective and cyclic throws are the same then it should fly the same. In my own experience I moved a beast x from an align 600 to a logo 600 - it did indeed fly differently - by why?

P

[jamiem]

Height of the head from the body of the airframe had a drastic effect as proven with the recent DFC head upgrades I fitted on my Aligns. I honestly think the difference between FBL airframes is very small, making it an easy decision for me as to what I buy; Align they are reliable, look good, parts are easy to get, and most importantly for me at the moment, cheap Chuck a vbar on board and you're on to a winner!

[Paulo uk]

Totally agree - I haven't had the dfc head, but going from the old v1 fbl head to the v2 head with slightly shorter main shaft definitely made a difference...


P

[Supa Koopa]

Totally agree - I haven't had the dfc head, but going from the old v1 fbl head to the v2 head with slightly shorter main shaft definitely made a difference...


P

After putting the dfc head on my 550, it made a small but noticeable difference. However the same vbar on a 700e and a Synergy E7 were totally different. I agree that they're probably small changes in reality but the change of heli probably makes it feel like more in your head. I think it might be a bit of a placebo affect. Could be wrong obviously and it wouldn't be the first time.

[cjcj1949]

We could be entering the Hi-Fi zone. Soon we'll be discusing the merits of oxygen free servo wire. Others will of course claim that real flybars are better.

[ChrisB]

I have found polishing my canopies with Turtle Wax makes my helis fly faster, slap it on the blades and you get more headpseed and the bugs dont stick to them

Tried V Bar on various airframes,brands and size class and there are subtle differences for sure but there is a distinct V bar feel in general.

[Supa Koopa]

I've got to agree with the turtle wax. Although I use Auto Glym's pure canuba wax, I think you get a better slipstream through the air....!

[Baldie]

Dropping the head by 15mm Made a stunning difference on my Trex 600.

[scallybert]

Tried V Bar on various airframes,brands and size class and there are subtle differences for sure but there is a distinct V bar feel in general.

But is that just that the V-Bar feel is swamping what might otherwise be significant differences ?

Personally, I don't think FBL controllers are anything like sophisticated enough for this thread's ideal to apply.

For example, you can't program out differences in swash linkage geometries.

That aside, weight distribution [ -> Moments of Inertia], stiffness [blades, airframe, dampers, etc], will all make a difference. In some cases they'll impose a limit you can't exceeed; in others, they'll colour performance.

If you take a FBL controller as emulating a FB (which many of the good ones claim to - at least to some degree), it's logical that the factors affecting a FB heli will have some effect on a FBL heli.

[rachel]

Flybarless will NOT make a pigs ear in to a silk purse :-)

nuff said ;-)

[Paulo uk]

I think it goes some way to doing this though Rachel.

Take one FB Trex 600 that couldnt fly straight if it was on a piece of string... add a decent flybarless unit and a fbl head - walaa half sensible heli!

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[chris jones2.4]

i put a vbar and dfc head on my 700, made a world of difference, so nice to fly, so precise

[Jamin_00]

Here's a thread Mr M started a year ago asking the same question

FBL - Does The Airframe Really Matter?


Having been all FBL with the vbar for most of it I can say that the airframe defo makes a difference. Yes as Chris says they do have the same basic feel but due to the size, weight, cog, layout etc of the frame and the head they all have different settings within the vbar so yes, the airframe does matter. I have had some helis that I just did not like the way they fly or I could not get on with even though they had a vbar.

[LipolyGone]

Flybarless will NOT make a pigs ear in to a silk purse :-)

nuff said ;-)

Oh I'm not so sure, they managed it with the logo range

[Stuart]

imo every heli will fly different ive had the same vbar one 4 different helis and whilst it flys true thus far the G4 flys very close to the synergy n9. however they all handle with there own unique feel there are other variables also to consider from weight interia cg headspeed. Plus the geometery, blade weight could be different across them all.