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Old Jul 18, 2014, 06:19 AM
United States, TX, Houston
Joined Jun 2012
204 Posts
on the glueing...remember that this foam is slick and smooth. one will want to scuff the contact surfaces for better adhesion.

man, that 51 looks like it was made for the plane...looks great!
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Old Jul 18, 2014, 04:26 PM
3d Kiwi
uptime4downtime's Avatar
New Zealand
Joined Dec 2007
3,054 Posts
Quote:
Originally Posted by fogey50 View Post
Got mine done, will maiden when wind conditions permits. Very easy build, even with mods. Braced up LG area with epoxy, Skyloft and CF strip, wing with CF strip. CG at 95mm, hit right on the button with 1000mah Nano-Tech battery. You can see how sexy this plane is, by what it attracts! (-:
Looks good. BTW, what is Skyloft? Excuse my ignorance. Rick
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Old Jul 18, 2014, 04:33 PM
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Joined Apr 2012
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Are the mods really neccessary?
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Old Jul 18, 2014, 05:31 PM
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Australia, VIC, Melbourne
Joined Jan 2008
681 Posts
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Originally Posted by timtimtim View Post
Are the mods really neccessary?
I guess it really depends on the pilot skills.... I've read a few instances of wing fold now but personally I don't do blender moves (I'm not at that level yet) so there's not been any issues with the airframe....

HobbyKing don't advertise the HyperBipe as a full 3D model, I think it's considered more of a sport pattern flier. Most of my moves include inverted flight, flat spins, and knife edge... all of which it appears to handle with ease...

The landing gear mod is a good one, I've noticed mine are wobbly now, so I'll brace the slot with ply like others have done. Simple enough to do and doesn't take a long time.

EDIT: I agree with Formontoya on the glue preparation. I did score my surfaces for the glue to seep into. I use an exacto knife to make a criss cross score in the foam along the mating surface, lets the glue expand into the shallow cuts. I know it works, as I've had to pry the surfaces apart to rebuild a damaged plane before and it was very strong bond, I'm pretty sure I ended up cutting the join instead. I'm sure others use different methods, sanding the foam should be enough.
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Last edited by Sed8ed; Jul 18, 2014 at 05:37 PM.
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Old Jul 18, 2014, 07:50 PM
Foam is where the heart is
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Australia, NSW, Como
Joined Aug 2010
2,220 Posts
Quote:
Originally Posted by timtimtim View Post
Are the mods really neccessary?
I'm one of those that experienced the wing failure.
I've probably gone a bit overboard with wing strengthening, however the plane was pretty badly damaged and needed beefing up.
Mine is still going strong BTW, albeit she's a little on the weighty side now. Still flies nice though.

If I were to assemble another I would ensure that all the gluing surfaces were well prepared, by sanding ,scuffing, or pricking small holes etc.

Then I would beef up the LG mount. There are several ways of achieving this but the epoxy impregnation of the foam seemed to work best for me.

IMO, if you are going to fly this thing a little violently (like I tend do to make for my lack of skills) then a carbon spar across the lower wing hatch would be a big help. Something like a 5x200mm spar glued into the foam would be all that is needed.

Then there's not much else to do other just enjoying flying the little thing.
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Old Jul 20, 2014, 01:00 AM
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Australia, VIC, Melbourne
Joined Jan 2008
681 Posts
Dang.... used my hyperbipe as a piledriver this morning!

Stupid pilot error, just wasn't on the ball when she was low to the deck and a sudden gust of wind threw me off! I over compensated and drove her in.

Easy repair, the nose split almost completely clean off, little compression, just straight snapped. One thing though! The 51mm Yellow Spinner is completely intact, no marks or scratches. Spinning the prop in my fingers shows no out of balance issues. Guess I need to be thankful for the rain over the last week... the ground is soft and forgiving. One thing about a blank fuse with no decals, no decal damage! I doubt anyone will be able to see the repair!

She will fly again in no time.
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Old Jul 20, 2014, 02:22 AM
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Australia, NSW, Balgowlah Heights
Joined May 2013
354 Posts
It wasnt a perfect fit though, despite the 6mm hole description it was too big for the shaft, I used a prop adapter ring and it was perfect!

Sed8ed,
[Can u explain the prop adaptor ring, what is it , do u need to also buy one, how does it fit, THANKS
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