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Home✈️Aircraft🚁HelicopterHIROBOOther Docs  Eagle3 WC in Incubation
12-26-2010 09:25 PM  9 years ago
Johnny CD

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Kent ,UK

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Thank you
I look forward to it!
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01-05-2011 07:36 AM  9 years ago
F3CWNB

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Napier, New Zealand

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The next thing to note about the Eagle3 is the clutch pinion. It has 12 teeth that are shaped MUCH better than the "Freya" 12 tooth pinion. The Freya pinion has very small teeth that look more like a spline on a shaft than gear teeth, while the Eagle3 has teeth to be proud of...

Again the Eagle3 "stands taller" than the Freya EX.

Eagle teeth visit the dentist for a polish Freya splines on Left, Eagle3 on Right Eagle3 on Left, ready for fitting
'Life' is Looking Up!!!
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01-05-2011 01:12 PM  9 years ago
Dr.Ben

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Richmond, VA, USA

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Wisely, Hirobo uses the taller bearing support section in the Freya Evo pinions as well to accept the same double stack of 10x19x5's that the Eagle uses.

Ben Minor
Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA
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01-09-2011 06:42 AM  9 years ago
F3CWNB

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Napier, New Zealand

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I plan to use the YS91ST out of my Freya R/F EC for the Eagle3, so I have stripped it down for a bearing change and port job (this engine has done less than 10 Gals).

I can't say that the YS-ST has more power than the OS-SZ; but it sure sound ten times better

I did this port mod on my YS-SR, resulting in the most powerful engine that I have ever flown... When the Eagle3 YS-ST is complete, it will have a Fun tech muffler as opposed to other mufflers that this engine has been run with, so I will not be able to put my hand on my heart and "boast" of the success of the Mods...

Before Moding Boost port

Before Moding Exhaust port

After Moding Boost port

After Moding Exhaust port
'Life' is Looking Up!!!
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01-15-2011 05:31 AM  9 years ago
F3CWNB

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Napier, New Zealand

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YS91ST Power!!!
Power Mill is assembled with new bearings – Rons facilitate...
YS Engine = Smooth trouble free power with the sound of a freight train

Looks pretty dressed with Blue mount and clutch hub; Blue cylinder head & metal fan would be nice...

This is the part of the build that I do not look FWD to - dialling the clutch assembly. At least it is done now and the memory of an hour or two of patience with a DTI will soon be forgotten and replaced by the satisfaction of a “Hirobo Hover”.

Next is the assembly of the LWR frames with fuel tank assy.

IMO If there is one part of these Eagles’s that could be better; it is the ease of removing the fuel tank & engine/clutch assy, hence I wonder if the “Eagle4” will take a lead from the Turbulence in this regard. I guess that every Helicopter has its “thorns”, and I tell myself that this is a small price to pay for what is otherwise “Hirobo excellence”.
'Life' is Looking Up!!!
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01-15-2011 06:56 AM  9 years ago
rapidity

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ohio

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aahh yes, dialing in the clutch assembly. I don't miss that part at all. Was doing it about every month. Always forgot about the little shim that I would end up losing in the evo.
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01-15-2011 01:20 PM  9 years ago
Dr.Ben

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Richmond, VA, USA

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Honestly, a nitro Eagle 4 may be a long wait. In the motherland of these models (and rapidly everywhere else), nitro is all but dead in F3C.

Ben Minor
Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA
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01-16-2011 09:52 AM  9 years ago
F3CWNB

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Napier, New Zealand

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I have now trial assembled the LWR frames.

The fuel tank mounting rubbers are much bigger than those used on the old Eagle2, X-Spec and Freya EX (WC). These bigger rubbers are also used on the Freya EVO, EXII and later...

The additional cushions that are used on the "YS" type "blow the tank up" fuel systems are somewhat difficult to fit through the small hole in the carbon frames, I ripped two while trying to fit - lucky I had some spares...

No problems with the LWR frames, but if Hirobo had asked me - I would of got them to fit a few more of those cross members at the positions indicated, I'm sure it would stiffen the frames a little more. May be I will add some...

I have "borrowed" a Picture from 2kwik2c's thread on his "X-Spec" (I trust he is OK with this), to show the E3 AOCC answer to strengthening the LWR frames - by using some "Blue frames", but somehow I think that extra EX cross members would suit me just fine...


- I can feel an e-mail to Rons in my bones...

Oh, Did I mention the Cool Titanium colour that the frames have (as per the top frames)? Sure looks nice... Only the early Eagle3 WC had these, the Eagle3 AOCC and later went back to the "Carbon look", still good, but for me, it is just as good to have that "unique" look
'Life' is Looking Up!!!
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01-16-2011 10:42 AM  9 years ago
Mike0251

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Hills of the Blue Ridge VA

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That is one sweet build. I use the ST as well, no issues and lots power.
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01-17-2011 06:06 PM  9 years ago
2kwik2c

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Chino Hills, USA

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No problems with the LWR frames, but if Hirobo had asked me - I would of got them to fit a few more of those cross members at the positions indicated, I'm sure it would stiffen the frames a little more. May be I will add some...

I have "borrowed" a Picture from 2kwik2c's thread on his "X-Spec" (I trust he is OK with this), to show the E3 AOCC answer to strengthening the LWR frames - by using some "Blue frames", but somehow I think that extra EX cross members would suit me just fine...
- I can feel an e-mail to Rons in my bones...
F3CWNB,

Your project Eagle 3 is coming along pretty well. It's really looking good!!!! I've always been curious as to how the VPUS system works, until I saw Dr. Ben's video on youtube. It's amazing how Hirobo had engineered all the mechanical parts to make it into an amazing flying machine.

BTW, I have no problem about using my photos on my thread. I feel honored that it's being used to get some cues on how you improve your model.

I do recommend and say "it's a must!!!!" to have the E3 lower under mount to make your lower frame more rigid especially you're running nitro power. The part number for those under mounts are (0414-515). The carbon pattern on your Eagle 3 VPUS is really, really nice; aesthetically speaking. Much more better looking than the regular carbon weave pattern.

Anyways, good luck and I'm looking forward to the day you finish your model.
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01-17-2011 06:13 PM  9 years ago
Dr.Ben

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Richmond, VA, USA

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There is one liability to the silver frames, and it may be the reason that Hirobo went to the more common black carbon frames. The silver color weave of the WC frames is quite soft. It's easy to tear it up with careless use of washers with sharp edges or forgetting to use washers at all. On the nitro model, you have to be particularly cautious with the motor mount to frame bolts.

WRT the AOCC lower frame braces, the one that really does the most good is the rear. It adds a ton of rigidity to resist the leverage of the tail boom.

Ben Minor
Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA
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03-20-2011 08:03 AM  8 years ago
F3CWNB

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Napier, New Zealand

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OK, the build has been going very slowly, but I now have the frames together, straight & square with Quick UK "caps" under the frame bolts - looks cool
Mast "falls freely" through the bearings - as it should...
I have only managed to get one under body mout to date, but I still have one for the front on order.
The knife shows where the last crossmember will be fitted once the EX washers are installed.

Next job = buy the Loctite factory

All straight & square, ready for Loctite
Under mount and most cross members fitted
'Life' is Looking Up!!!
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03-20-2011 10:07 AM  8 years ago
fung_jeff

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Vancouver, BC, Canada

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Looks beautiful right now Jeffrey Fung...15 Years old - FLEET: Evo 50, Raptor 30, Trex 500, SDX's, X-Spec, Logo 10/400
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03-20-2011 06:23 PM  8 years ago
sks

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london

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just a little tip that I got from a used Eagle
silicone the floating angle set to the frames.

I've noticed over time if I did not I get black deposites when I wipe the model along the contact lengths after a flight, siliconing them prevents this, and I've done it ever since. must be the vibes causing rubbing between the piece and the frame.
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03-20-2011 07:25 PM  8 years ago
F3CWNB

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Napier, New Zealand

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Just Silicone paste out of a tube?'Life' is Looking Up!!!
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03-20-2011 10:34 PM  8 years ago
sks

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london

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I use loctite 5920, loctite also do a blue one that I forgot the number of that was used on my used Eagle. Both work fine, although the blue one would be more appropriate.
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06-01-2011 10:37 AM  8 years ago
F3CWNB

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Napier, New Zealand

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OK, am I still working on this...

The (Cyclic) Servo frame and "VPUS" system is now installed and operating flawlessly. I had quite some grief with the VPUS system in that it was binding as I did the "final tighten" of the screws. I found that the "40 mm" cross members that spaces the collective levers (the ones that transmit the collective pitch input to the elevator lever under the Swatchplate) were in fact only 39.8 mm long. So a friend of mine made me some 40 mm cross members and now with all screws secure, the swatch plate falls without any friction under its own weight. This "Problem" with the binding has tarnished my opinion of the VPUS system, as much as I like the "mechanical purity" of the VPUS, I must concede that it brings with it a good deal of complexity that just is not required in a SWM set up. I still like the VPUS, but if I were to buy a second E3, it would be a SWM version. For someone with my abilities, I'm sure that the simplicity & directness of a SWM would be more valuable than the "Purity" of the VPUS. Just my thoughts for today anyway.

'Life' is Looking Up!!!
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06-01-2011 12:54 PM  8 years ago
2kwik2c

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Chino Hills, USA

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It's looking good. Very beautiful and neatly assembled. Can't wait to see the finish product.

BTW, it's looks like you'll be using a carbon fiber tail boom since you have the E3 (blue) tail boom holders as oppose to the regular black ones.
Don't forget to get a boom clamp too part no: 0414-328. This will help hold the carbon boom in place and prevents it from slipping inwards the frame. The E3 tail boom holders isn't enough to hold down the boom and over time it'll start slipping in.
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06-01-2011 01:22 PM  8 years ago
Brendan78

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NSW Australia

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Looks awesome!Raptor 90 G4 / YS120SRX / VBar Silverline / Futaba / Rotor Rage / Edge
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06-01-2011 06:43 PM  8 years ago
Dr.Ben

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Richmond, VA, USA

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Colin,

Once the model is up and running, you'll develop amnesia for the added complexity of the VPUS build up and be left only with the working appreciation of how well it does in fact fly. Of that fact I am utterly certain because I've been there.

Ben Minor
Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA
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