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HelicopterMiniature Aircraft Whiplash & Fury 55 › Curtis Youngblood Stubz not fitting on Stratus.
12-01-2007 09:53 PM  10 years agoPost 1
sniper_brad

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Santa Clarita, Ca, USA!!

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I recently purchased a set of super Stubz for my new Status and tried to install them on the Stratus flybar. They did not fit. I got maybe two full turns before they locked up. The problem is the Stratus flybar is 8/32 and the super Stubz are 4mm. The fix is to either retap the Stubz using an 8/32 drill and tap combo or buy a Raptor 90 hardened flybar and use the Stubz as is. I spoke with Brian over at Curtis Youngblood Enterprises and they were not aware of the issue. He thinks that M.A. might have changed their threading just enough to make the Stubz not fit. I went with the retap method and all is good so far. I just wanted to let everyone know as it caused much frustration with my build last week

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12-01-2007 09:57 PM  10 years agoPost 2
littleman

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Pasadena, Ca

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A flying buddy here had that problem, and he purchased a Minicopter Acrobat Flybar from Joker USA. The length after he threaded the paddles on was virtually identical. Pm NewHeli or myslef for more details.
A.J.

Proud member of Teams Castle, MSH USA, Futaba, Scorpion, & Nick Maxwell Products

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12-01-2007 11:25 PM  10 years agoPost 3
BJames111

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San Diego, California

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Hmmm, I just put them on my fury extreme,and they threaded right on.

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12-01-2007 11:32 PM  10 years agoPost 4
littleman

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Pasadena, Ca

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i've only heard about it on the newest stratus kits, but is seems really weird because if the stubz didn't work, than in theory, no paddles (other than plastic ones that you thread yourself as you put them on) would fit, and that includes V's.
A.J.

Proud member of Teams Castle, MSH USA, Futaba, Scorpion, & Nick Maxwell Products

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12-01-2007 11:32 PM  10 years agoPost 5
ZR2Chevy22

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Kemah, TX

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Make sure the set screw isn't screwed down any. This would cause them not to thread on.

Look in the leading edge of the paddle there's a hole. use an allen wrench and see if the set screw's all the way out.

Andrew

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12-01-2007 11:37 PM  10 years agoPost 6
BJames111

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San Diego, California

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Make sure the set screw isn't screwed down any. This would cause them not to thread on.

Look in the leading edge of the paddle there's a hole. use an allen wrench and see if the set screw's all the way out.
That's a good point. I can't see any sense in changing the flybar threading to standard 8/32. I have my doubts.

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12-01-2007 11:38 PM  10 years agoPost 7
littleman

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Pasadena, Ca

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no i am 100% sure that the set screw wasnt the issue.
A.J.

Proud member of Teams Castle, MSH USA, Futaba, Scorpion, & Nick Maxwell Products

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12-01-2007 11:58 PM  10 years agoPost 8
ZR2Chevy22

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Kemah, TX

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If it was an old flybar that had the plastic paddles epoxied on like the directions say there's a very good chance there was still epoxy in the threads of the flybar preventing it from threading on properly.

I have stubz on my knight, Fury, and buddies have them on all their Stratus's, MA Razors and none have had any issues.

Andrew

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12-02-2007 12:02 AM  10 years agoPost 9
littleman

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Pasadena, Ca

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it was a brand new flybar right out of a brand new kit. he checked the threads and they were 8/32.
A.J.

Proud member of Teams Castle, MSH USA, Futaba, Scorpion, & Nick Maxwell Products

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12-02-2007 01:40 AM  10 years agoPost 10
FOX222

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Atlanta, Ga. (Actually Buford)

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They have always been 8/32". Even the Xcell 60.

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12-02-2007 02:50 AM  10 years agoPost 11
Funky Trex

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Westerville, OH - USA

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I just fit a set of Stubz on my Stratus... no problem here, although my kit is about a year old and they are standard (not super) Stubz.

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12-02-2007 03:20 AM  10 years agoPost 12
BJames111

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San Diego, California

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They have always been 8/32". Even the Xcell 60.
Suppose that 8/32 is close enough that we've just been threading on paddles that are 4mm, and slightly retapping them? Likely, I think.

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12-02-2007 05:54 AM  10 years agoPost 13
sniper_brad

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Santa Clarita, Ca, USA!!

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My Stratus kit was one of the new ones with the bobby watts frames. I just built the kit over the last couple of weeks. The set screws were backed all the way out and it was a fresh install, no epoxy residue. I am going to place a call to M.A. on Monday and ask them what the issue is and I will post their reply. Maybe I got a one off, but the threading would not allow me to screw the Stubz on without breaking them. My rethreading seems to be holding. I am two tanks down and they haven't budged.

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12-02-2007 08:35 AM  10 years agoPost 14
nitro fun

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Oc ca

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maybe it is not the flybar, maybe it is the stubs?

did you check to see if the stubs fit onto another flybar?

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12-02-2007 12:40 PM  10 years agoPost 15
GM1

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Tallahassee, Florida US

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OK

The MA flybar is threaded 8-32 and the Stubz are threaded 4mm. You can either use a JR 4mm flybar or use a 4mm die to rethread the existing 8-32 to 4mm.
I have been told the JR flybars no longer fit the MA bearings without cleaning them up with emery cloth. Mine fit fine when I used them but it was into a Tempest FAI flybar carrier which uses the same bearings at the end as the 3D head. I now just rethread the MA flybars by running a 4mm die over the existing 8-82 thread and it works fine on the Stubz or SuperStubz.
Gordie

On a dog sled team, if you're not the lead dog, the view never changes.

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12-18-2007 02:08 AM  10 years agoPost 16
sniper_brad

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Santa Clarita, Ca, USA!!

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OK I am now two gallons down and they are holding great after retapping the Stubz to 8/32. I have to say the Stubz are wicked fast. I have to be gentle on the cyclic or it is super responsive. I am also running the included weights at mid distance on the flybar. I highly recommend them!!

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12-18-2007 07:59 AM  10 years agoPost 17
madgadget

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St Louis MO

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setup ?

what's the rest of your setup since you're sharing sniper

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12-19-2007 09:23 AM  10 years agoPost 18
IDHoverman

rrApprentice

Jakarta-Indonesia

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I just find it inconsistent for MA to use 8/32 on an otherwise 'metric' heli. Have the same problem with MA flybars and mostly replacing it with other 4mm fly bars of appropriate length, used Hirobo flybars with no problem.

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12-19-2007 10:33 AM  10 years agoPost 19
hootowl

rrProfessor

Garnet Valley, Pa.

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M4 x .7mm pitch
Converted to inches is Ø.1574 x .0275" per revolution

8-32
Ø.164 x .03125" per revolution

So the 8-32 specs out as slightly larger in dia. (Ø.007)" with about a .004" per revolution pitch difference.

This is quite significant. After every turn you accumulate the .004" pitch deviation. After about the second or third turn, the binding should begin.

Wolves don't lose sleep over the opinions of sheep

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12-23-2007 02:26 AM  9 years agoPost 20
sniper_brad

rrNovice

Santa Clarita, Ca, USA!!

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Hey Madgadget. My setup is the following:

YS 91sr motor
Ar9000 reciever with two remote receivers
Jr 8717 servos all around
Futaba 611 gyro
Futaba GV-1 governor
Fromeco 5200 lion pack with Fromeco Arizona regulator
Switchglow on board glow igniter
Raddix 710 mains, Raddix 105 tails and Super stubz for paddles. All controlled with a JR 10x heli with the Spektrum module.

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HelicopterMiniature Aircraft Whiplash & Fury 55 › Curtis Youngblood Stubz not fitting on Stratus.
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