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Home✈️Aircraft🚁HelicopterAlignOther › 600n 4mil flybar... easy!
02-04-2008 03:02 PM  11 years ago
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SkateFreak

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Cambs UK

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600n 4mil flybar... easy!
Hey,
So in the process of putting the OS70 in and streching the 600n for 680's i was given a good suggestion that i should consider putting a 4mm flybar in there.

A rather easy conversion to be fair.
All you need is the flybar, 4mil drill bit, a drill and two bearings
4x10x4 to be precise.

Standard flybar vs the R90SE 4mm Stainless steel 530mm flybar

Drill out the flybar carrier holes for the flybar.

Drill out the slot in the head making sure to elongate it slightly to maintain full flybar movment.

And finally the flybar through the head

It might be a little while before i get a chance to fly this conversion, moneys tight at uni but I'm working on it

Have 9451's on cyclic, HS81 on throttle, 9254 on tail, 401 for now but will upgrade that when I get a chance, Align reg, will need to get blades, reciver, metal blade grips/tail box & grips and bearing supports when I start to throw it about

Can anyone think of any other mod's I should look into whilst I'm awaiting funds

Best regards

-Jvr

Ps, the bearings can be had for £1.30 each, PM if you'd like some directions
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02-04-2008 03:59 PM  11 years ago
QuantumPSI

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Atlanta, GA

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How are you dropping an OS 70 into it?...now where was I, dh/dt = BS-dx/dt
I will fly you forever... till earth do us part
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02-04-2008 04:00 PM  11 years ago
THX1138

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Indianapolis, IN

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Pretty nice mate. I am sure it will fly just fine. Good job!

Lou
Just give me five dudes and two flashbangs...
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02-04-2008 04:45 PM  11 years ago
electriciancarl

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Star Valley, Az.

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How are you dropping an OS 70 into it?
I run a YS91 and 710 blades on mine. Flies like a dream @ 8.75 lbs. Not much to it really.

http://www.runryder.com/t395186p12/?p=3237730#RR

Look here. PM me if you need details.
Treat me good, I'll treat you better. Treat me bad, I'll treat you worse.
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02-04-2008 04:46 PM  11 years ago
electriciancarl

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Star Valley, Az.

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Nice mod SkateFreak. I have been thinking the same thing. I need to find the bearings and do this to mine.Treat me good, I'll treat you better. Treat me bad, I'll treat you worse.
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02-04-2008 11:09 PM  11 years ago
jadams

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East coast USA

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what is the bennefit on the 600 with a 50?
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02-04-2008 11:38 PM  11 years ago
Eury

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Dover NH

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The size of a flybar has nothing to do with the engine size, 4mm is just nice to have, they don't get bent from bumping into things while transporting. I converted my Evo a year or so ago, flew exactly the same, it was just tougher. Another nice benefit was the wider selection of paddles for 4mm flybars.Nick Crego

Citizen #0168
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02-07-2008 10:30 AM  11 years ago
SkateFreak

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Cambs UK

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I'v heard from others that this mod makes the heli feel more stable and respond better around center stick cyclic...
Sharpens up the cyclic and makes it feel a little more like a 90.

Maybe i'll throw it on my 600n with the TT600's and see how it feels...

Will let you know if I do

-Jvr
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02-07-2008 12:43 PM  11 years ago
Learn to Fly

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Yalesville Connecticut

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Thanks to Eury I switched my EVO to a 4mm bar. Made a huge difference!!

I posted this mod MONTHS ago on here and noone thought it was cool. BLAH TO THEM!! Bearings can be bought at Boca, its a standard size.

Alan said it wont do this and that wnah wanh wanh!!!

Jeff
Believe nothing you hear, and half of what you see...
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02-07-2008 03:53 PM  11 years ago
Tom Parker

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Cambridge, UK

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I wouldn't take all the credit for the mod Chris Beware of the 'White Nijas', blamed for crashes everywhere!
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02-08-2008 07:33 AM  11 years ago
jackheli

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Vancouver - Canada

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Nice job!

I think that for the 70 you definitely went the right way with the 4mm flybar. But for the normal 50 I feel it is a waste of time.

Just want to make sure somebody opens this discussion here before it becomes the norm.

Never heard of a 3mm flybar wobbling, deforming or breaking in flight. If thinking of crashing survival properties one may actually argue that the stronger flybar may transfer the stress to other more expensive parts of the head.

How much did you pay for the 4mm flybar? The 3mm flybars are cheap and expendable, IMO.

Plus the added mass may actually slow cyclic a bit...

Just want to hear what you guys think.
It's easy to find an excuse to do wrong. Hard is not to find an excuse to do right.
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02-08-2008 10:53 AM  11 years ago
Eury

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Dover NH

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Why would it be a waste of time? It really doesn't change the flight characteristics, but it makes it less susceptible to bumps in transport. It doesn't speed up or slow down the cyclics (on the same machine, back to back, same paddles, same length flybar, there's no difference in the air), it's just handier and more durable.Nick Crego

Citizen #0168
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02-08-2008 02:03 PM  11 years ago
SkateFreak

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Cambs UK

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Hey,
Yeah, I wont take full credit, a chap pointed me in the direction of this mod
I recon it will proberbly do the 70 a lot of good as its 530 vs the 400/440 align flybars.
The price is pretty heafty at £3 which is most of the way to two 440's.
I might throw it on the OS50 600n just to see what a 530 flybar can do on a smaller machine

I wasnt aware you could get 440'ish sized 4mil flybars but I'm sure the 530 will give it some major flip rate heh.

Best regards

-Jvr
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02-08-2008 02:21 PM  11 years ago
SBMC

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Weinerville, GA

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Nice Mod......Peter Sacks
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02-08-2008 05:09 PM  11 years ago
jackheli

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Vancouver - Canada

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doesn't speed up or slow down the cyclics
you mean to say the 3mm and 4mm flybars weigh the same?

This is just like adding weights to the flybar...
It's easy to find an excuse to do wrong. Hard is not to find an excuse to do right.
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02-08-2008 11:34 PM  11 years ago
Learn to Fly

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Yalesville Connecticut

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We are talking a few grams here guys, no way will it make a difference.

I have broken 2 Trex 3mm flybars now in flight.

Jeff
Believe nothing you hear, and half of what you see...
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02-08-2008 11:51 PM  11 years ago
jackheli

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Vancouver - Canada

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We are talking a few grams
How many grams do flybar weights have?
I have broken 2 Trex 3mm flybars now in flight.
How did it happen and what were the consequences?
It's easy to find an excuse to do wrong. Hard is not to find an excuse to do right.
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02-09-2008 12:17 AM  11 years ago
Eury

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Dover NH

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The weight difference is minimal and unlike a weight, it's spread out. You guys who think you can tell the difference of a few grams are hilarious.Nick Crego

Citizen #0168
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02-09-2008 12:44 AM  11 years ago
Learn to Fly

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Yalesville Connecticut

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The weight difference is minimal and unlike a weight, it's spread out. You guys who think you can tell the difference of a few grams are hilarious.
Exactly!!^^^^

I broke a flybar on my 600E twice now. Broke right at where the set screw is. Heli shakes very bad, I landed both times. One of my V paddles is still out in our field somewhere. Im going to put the nitro cage on my E.

Jeff
Believe nothing you hear, and half of what you see...
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02-09-2008 12:46 AM  11 years ago
jackheli

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Vancouver - Canada

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guys who think you can tell the difference of a few grams are hilarious
Well, that is charming. I like your educated vocabulary and the way you answer questions with real facts.
It's easy to find an excuse to do wrong. Hard is not to find an excuse to do right.
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Home✈️Aircraft🚁HelicopterAlignOther › 600n 4mil flybar... easy!
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