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FEJ Liberty first look ...

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Old 11-14-2008 | 06:11 AM
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From: Vulkaneifel
Default FEJ Liberty first look ...

here is a first look to the "Liberty" ....
now i have to modify the tips and some small things

this is the small version: Lenght 66,93", Wingspan 55,12"

for a view in better quality you can send me a PM with your mail-account,
you need solid-works viewer, pls google for a free download




[link=http://www.flyeaglejet.com/Pre-Order.html]LIBERTY[/link]

Old 11-15-2008 | 12:45 AM
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Default RE: FEJ Liberty first look ...

It's looking great Stefan, can't wait to see the final drawings!
Old 11-15-2008 | 02:20 PM
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Default RE: FEJ Liberty first look ...

Really interesting, any idea on the pricing for the small version?? Looks to be ideal for a Wren 54 engine.....

Regards

Joseph

Old 11-15-2008 | 04:46 PM
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Default RE: FEJ Liberty first look ...

Joseph,

promotion Price for all Pre-Orderd Kits is around 1200$ incl. Tailpipe, Retracts, Brake etc.
Old 11-15-2008 | 04:52 PM
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Default RE: FEJ Liberty first look ...

IMO the tips of the wings, stabs and verticals dont go w/ the rest of the airframe. Everything has a nice round "Flow" to it, and the pointed LE tips dont look right. I think a rounded LE tip would look much better. And the P-40 style rear canopy kinda breaks up the lines IMO to.

Other than that though, i like it!!!
Old 11-15-2008 | 06:36 PM
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Default RE: FEJ Liberty first look ...

Hey Thomas,

that was only the first look ......

Thats todays look
and i will change some more small details over the next days





Old 11-15-2008 | 10:07 PM
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Default RE: FEJ Liberty first look ...


ORIGINAL: Eagle Driver

Hey Thomas,

that was only the first look ......

Thats todays look
and i will change some more small details over the next days







That IMO IS PERFECT!! much better looking. when do we get a peek at the plugs for the model?
Old 11-15-2008 | 10:35 PM
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Default RE: FEJ Liberty first look ...

Like I mentioned in email, the roundness of the fin particularly is to much, it shouldn't be sharp, but it's way to round on top right now. Stefan and I have been discussing all of it regularly, probably a few more drawings to get through but it's looking great!
Old 11-16-2008 | 02:58 AM
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Default RE: FEJ Liberty first look ...

don't change the canopy!! [X(] maybe a little more sweep on the vert. fin will help the round look? any idea how much intake area?
Old 11-16-2008 | 05:27 AM
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Default RE: FEJ Liberty first look ...

hey, if you guys want to discuss the design and some small changes with me you can add me to your msn

[email protected]
Old 11-17-2008 | 09:57 AM
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Default RE: FEJ Liberty first look ...

Keep the updates coming. The round tips on the stabs give it a slippery look. Are you planning for it to have flaps, gear doors, wheel tubs for the mains? etc... This is a winner in my book for the everyday flyer.

Todd
Old 11-17-2008 | 11:08 AM
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Default RE: FEJ Liberty first look ...

we have changed the fin ....
and put a P-70 with tailpipe inside

Flaps.... of course
gear doors.... no / same style like on the C-Arf Flash

and the wing-tips are bold on, you can choose between tips, winglets or tiptanks



Old 11-17-2008 | 12:05 PM
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Default RE: FEJ Liberty first look ...

What colour schemes are planned? the Jolly rogers scheme would look excellent on it.

regards

Joseph
Old 11-17-2008 | 03:38 PM
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Default RE: FEJ Liberty first look ...

i totaly agree with the jolly roger scheme and i think
Jeremy will work out some extreme custom schemes
Old 11-17-2008 | 05:41 PM
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Default RE: FEJ Liberty first look ...

Jolly Roger scheme is cool, the playboy black bunny scheme would be really cool on there as well. I have some good idea's for "stock" schemes, as well as I have a couple idea's for custom paint schemes for myself as well
Old 11-17-2008 | 05:56 PM
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Default RE: FEJ Liberty first look ...

move the wing attach points out so the gear mounts stay on the fuse( easier to transport)
mount the motor closer to the CG( no lead to balance
full flying stabs
try moving the stab to the top (so we can see what it looks like)
Old 11-17-2008 | 07:22 PM
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Default RE: FEJ Liberty first look ...


ORIGINAL: 454

move the wing attach points out so the gear mounts stay on the fuse( easier to transport)
mount the motor closer to the CG( no lead to balance
full flying stabs
try moving the stab to the top (so we can see what it looks like)

1. The inner wing panels are going to be extended so the gear mounts in the fuse. It's a double edged sword a little bit, all the gear on the fuse is nicer for transport, but the added width also can make transport tougher. The inner panels will also need to be long enough to have the flaps be part of them rather than the wing panels.

2. The motor back where it is should provide a good balance without lead, with batteries in the nose. The fuel is right on the CG now which is preferred so there is no trim change during burn off.

3. Full flying stabs is just that much more complicated, particularly with the anhedral setup of the tail

4. Already had the stab moved up higher, it's a personal preference. The stab location looks good where it is IMO, it's how I originally designed the jet and how I would prefer it to stay. It also simplifies the mold as the stab will be a bolt on unit from the bottom of the fuse.

Old 11-17-2008 | 09:41 PM
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Default RE: FEJ Liberty first look ...

Ill except all of that
But try this, make the wheels retract out into the wing panel
so there are no wheel Wells in the fuse (should help keep that low profile look )and the
fuse dose not need to be as wide
Yes I know its not the norm but there are a few full scale jet that do it that way
I do like the idea of a thicker wing something like the comp-arf lightning airfoil
fat yet fast
Just my two cents If it turns out as expected I belive I would like the large one
on that note I have a wren200 xl That's why I would move the motor a little farther forward
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Old 11-18-2008 | 12:11 AM
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Default RE: FEJ Liberty first look ...

The problem isn't so much the direction of retraction, the real problem is getting the gear spaced far enough apart that it's got a nice wide track for better ground handling, particularly on grass. Once you get it spread out far enough for that, if it's mounted in the fuse, you need to make sure the fuse is wide enough to house the flaps as well.
Keep in mind that on a 55" span (such as this one) By the time you get a minimal distance between the gear, say 16" even (which is narrow, but probably close to what the small F16's are) you are already down to a 19.5" wing panel, that doesn't leave much room for an aileron AND flap. But if the fuse section is say 30" wide, with 12.5" wing panels (which seems a little silly I know, but it's really not THAT much shorter than the small F16's again, you can have a 12" aileron and a 12" flap. And really a 30" wide fuse section isn't that bad. It may not need to be that wide, but we haven't gotten that far with the drawings. I think if it was somewhere between 24 and 30" wide that would be the best, gear could retract normally, flaps would fit in the fuse section, and it will all remain strong with nice integral formers through the fuse

As for the bigger one, with the bigger engines it's quite possible that the engine could move forward. I'll talk with Stefan about that. But keep in mind, even with the bigger engine further back, the nose gets that much longer and heavier. I think it would still balance ok, it has a very long nose moment
Old 11-18-2008 | 12:31 AM
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Default RE: FEJ Liberty first look ...

you could always devote a way of having the flap split in have spanwise and then having a "tongue and groove" assembly to join the 2 flaps halves together. this would allow you to have a small fuselage section and a normal/large wing panel and solve the flap situation.
Old 11-18-2008 | 12:36 AM
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Default RE: FEJ Liberty first look ...

I thought about that as well, I will talk with Stefan about it too, but one more connection is one more potential failure point, and more complexity. However, we will discuss all of the options
Old 11-18-2008 | 01:42 AM
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Default RE: FEJ Liberty first look ...

Hello

Very nice work !!
I think that wings with tip tanks will help for visibility once in the air !!! My Lightning has tip tanks....


Nevertheless, It looks great like that....Good job...

Which NACA profil did you use ? Did you think to washout for the wings ?

Thanks
Jean-Philippe
Old 11-18-2008 | 04:31 AM
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Default RE: FEJ Liberty first look ...

Tiptanks to bolt on ....

Old 11-18-2008 | 05:17 AM
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Default RE: FEJ Liberty first look ...

It would be cool, if you could have 3 options on wing tips which just bolt on.

Bolt on:
Rounded wing tips
Tip tanks
Winglets

Everyone has different taste on what looks good. This would be nice to customize your own sportsjet
Also, if you damaged a tip, you could replace it easily.
Old 11-18-2008 | 05:58 AM
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Default RE: FEJ Liberty first look ...


ORIGINAL: SJN

It would be cool, if you could have 3 options on wing tips which just bolt on.

Bolt on:
Rounded wing tips
Tip tanks
Winglets

Everyone has different taste on what looks good. This would be nice to customize your own sportsjet
Also, if you damaged a tip, you could replace it easily.
i think they are planning just that.


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