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Blade 130 › Extend the boom support ;)
08-28-2012 05:45 PM  5 years agoPost 1
integy2

rrVeteran

California USA

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Extend boom support/ quad bearing tail case.
Two mods I did.
Fly really nice. Keep it stock as much as possible.


(Good flight end up with ...... big smile :D)

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08-29-2012 05:32 AM  5 years agoPost 2
Gladiator

rrApprentice

Miramar, FL - USA

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How did you do the quad bearing tail case?

I just replaced the stock tail bearings with Boca ones, but only 2 bearings.

iKon, because I am connected to my heli, are you?

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09-01-2012 03:39 PM  5 years agoPost 3
bigben1165

rrKey Veteran

grand rapids, michigan

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does a replacement tail boom support come unassembled? is that how you made them longer?

big ben - e550 fbl - DX6

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09-01-2012 10:39 PM  5 years agoPost 4
integy2

rrVeteran

California USA

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You need to twist it off.
Then get the right size of the CF rod.
From LHS

(Good flight end up with ...... big smile :D)

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09-02-2012 12:06 PM  5 years agoPost 5
bigben1165

rrKey Veteran

grand rapids, michigan

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i take it they are not glued on very tight.

big ben - e550 fbl - DX6

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09-02-2012 02:57 PM  5 years agoPost 6
spoolemup

rrApprentice

NJ - USA

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What are the set screws locking on too, with this mod?

We know that one set screw is on a flat spot that runs down 1/2 the length of the TOS. The other one is a locking set screw that sits in a little flat groove at the end of the shaft. That smaller flat groove makes it impossible for collar to slide off the TOS if it's tightened and Loctite is used. Did your mod leave enough clearance for the 2nd set screw to seat correctly?

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09-04-2012 05:12 AM  5 years agoPost 7
integy2

rrVeteran

California USA

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blue loctite do the job. Dap at the tip will go down to the shaft,
50+ flights 2 light crash never came loose.

(Good flight end up with ...... big smile :D)

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09-04-2012 07:10 AM  5 years agoPost 8
TomC

rrKey Veteran

Gold Coast, Queensland, Australia

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Tried the extended boom support mod on a friend's 130x. By itself, this mod did nothing to improve tail handling or vibs imho. All it did was move the cg back a bit and kinda looks a little better.

Also, since you end up with a shorter rear boom area (the area that usually breaks in a tail-in crash) it ends up breaking a little easier.

Actually thinking of trying my 130x without any boom supports and an extra boom support guide to provide another tail pushrod guide/support. Without this extra guide I think you'd get way too many pushrod vibs.

I'll probably order another boom support guide on my next 130x spares order and try this out.

Another option would be to shorten the boom supports (~50%) and add another guide.

Anyone else tried this btw?

cheers,
TomC

Nqx,Mcpx-BL,300x,450x,500x,550x
Ion-x, 10s ,SS
TT X50E 10s, HC3-Sx

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09-10-2012 03:53 AM  5 years agoPost 9
drdot

rrElite Veteran

So. California, Orange County.

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Fwiw..

Would love to see aftermarket slip on t/r pushrod supports.....It looks like the pushrod is a resonator for whatever is starting the vibration...Mine will bow almost an inch at the unsupported middle if I hold the right (wrong!)rpm...

John.

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09-16-2012 05:09 AM  5 years agoPost 10
drdot

rrElite Veteran

So. California, Orange County.

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Fwiw..

Rakon must have heard me....Single point aluminum t/r pushrod supports now available....

John.

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09-16-2012 05:30 PM  5 years agoPost 11
spoolemup

rrApprentice

NJ - USA

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Dap at the tip will go down to the shaft
So, the one screw that's seated in the flat groove is no longer seated in there and loctite is holding it? If that’s the case, then when you look at the two screws on that collar, one of them is out further than the other? I hope you don't loose your tail, but I guess it also depends on what type of flying you're doing.. Good luck with that mod.
Mine will bow almost an inch at the unsupported middle if I hold the right (wrong!)rpm...
Dood, If your boom push rod is deflecting almost an inch on spool up, you got to check that tail hub.. I'll bet it's off center.

Also, I found out that IF your tail has that type of vibration, the plastic that securing your tail case bearings cannot take that kind of pounding and it widens up, which causes more tail output shaft deflection.

I had too much RPM on mine last weekend and those stock tail blades just could not take that kind or RPM and I threw a tail blade. Just a reminder, I had NO tail vibrations after straitening out the Hub on the shaft. Every thing was running SMOOTH as glass.

When the blade was thrown, the offset vibration caused the tail output shaft to bend.
I landed it in the grass. No other damage than my canopy got a bit beat up.

Long story short – When I put my Bearings in the tail case, it was a snug fit, and I check them before each flight. I just try to wiggle the tail output shat to see if anything was getting loose. Well, when I went to check it after the thrown tail blade, the bearing closest to the tail blades now can fall out of the tail case, if the large gear was not there.

If that can happen in 1 flight, image what will happen over time with a wild vibration.

Oh, - One more thing..
The screws that secure the tail blades to the grips, should have a shank on them. When looking at a blown up photo of the screws, those things are like miniature saw blades digging away at your plastic tail blade roots. I modified the two on mine with some JB Weld to create a smooth surface for tail blades to ride on.

Gravity Hates me..

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Blade 130 › Extend the boom support ;)
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