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Old Oct 17, 2004, 11:31 PM
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Thomas Wang's Avatar
Beijing
Joined Jul 2004
206 Posts
build Allegro-Lite

Start building an Allegro-Lite, here some photos:

Ribs form Laser Art, Boom for Tailboom, Pod & V-mount from Bud, Cabon Cap from CST, still waitting for the K&S Brass tube from Tower Hobby(over 5 weeks have pasted! ) :
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Old Oct 17, 2004, 11:49 PM
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Thomas Wang's Avatar
Beijing
Joined Jul 2004
206 Posts
Allegro-Lite Wing Tip

Finished wing tip, total weight 22g, the quality of the kevlar wrap need to be improved. It's my firs time to build a cabon-kevlar spar wing, I am amazing about the strength of the spar !


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Last edited by Thomas Wang; Oct 22, 2009 at 02:10 AM.
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Old Oct 18, 2004, 12:02 AM
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Thomas Wang's Avatar
Beijing
Joined Jul 2004
206 Posts
Allegro-Lite, Mid Wing

Joiner assembly, I use cabon laminate insted of fiber glass on the bottom of the assembly,


Locate the ribs, joiner, cabon cap, web, and wing tip on the plan, apply epoxy and waitting for cure,


Wrapping the Kevlar tow, I get the kevlar tow from the fiber optic cable, it is very good for building the wing!


Wing spar after wrapping the kevlar tow


Apply epoxy and waitting for cure


Joiner and spar assembly


The quality of the kevlar wrapping is better than the tip

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Last edited by Thomas Wang; Oct 22, 2009 at 02:13 AM.
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Old Oct 18, 2004, 02:06 AM
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New Zealand
Joined Jun 2004
191 Posts
Ncie Job!!
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Old Oct 18, 2004, 10:30 AM
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John Gallagher's Avatar
Lindenwold, NJ, USA
Joined Dec 2000
3,137 Posts
great photos.
Can you tell me what the fuse pod cost?
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Old Oct 18, 2004, 08:37 PM
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shaneyee's Avatar
Singapore
Joined Aug 2002
757 Posts
You'll enjoy this one Thomas...it flies beautifully!

Shane
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Old Oct 18, 2004, 09:14 PM
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Thomas Wang's Avatar
Beijing
Joined Jul 2004
206 Posts
Allegro-Lite Mid wing (cont.)

Add break rib and inner LE


Inner LE flush with rib bottem


Add gusset


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Old Oct 18, 2004, 09:18 PM
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Thomas Wang's Avatar
Beijing
Joined Jul 2004
206 Posts
Allegro-Lite, stab after sanding

Top


Bottem with V-mount
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Old Oct 18, 2004, 09:26 PM
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Upland, CA
Joined Mar 2004
540 Posts
It looks like you're doing a fantastic job. Keep up the good work. I look forward to seeing it finished.
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Old Oct 19, 2004, 08:42 PM
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Thomas Wang's Avatar
Beijing
Joined Jul 2004
206 Posts
Allegro-Lite Mid wing (cont.)

Prepare for sheeting, cut the sheet and wet it use watter, bend the sheet according to the curve of the foil, use heat gun dry the sheet, internal side first.


When the sheet dry, it is easy to be glued to the rib & LE structure.


Glue gusset butween bottem sheet and the spar, this will make a strong "D" box.


Mid wing panel after bottem sheeting, sand the inner TE to make it flush with the front of the rib


Top sheet cutted, and will be glued tomorrow
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Old Oct 19, 2004, 08:55 PM
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Cambridge, MA USA
Joined May 2001
1,732 Posts
Quote:
Originally Posted by Thomas Wang
Top sheet cutted, and will be glued tomorrow
Looks great.

Don't forget the slight -0.5 deg washout in the mid panels when gluing down the top sheeting. The -0.5 deg works out to raising the TE at the outer break by about 1/16". This washout isn't essential, but it's good insurance against any washin creeping in later.
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Old Oct 19, 2004, 09:40 PM
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Thomas Wang's Avatar
Beijing
Joined Jul 2004
206 Posts
Oh! Yeh!

Hi Dr. Drela,

Thanks a lot for your reminder, so happy to get your message and I'll pay attentation to it.

Best regards,

Thomas
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Old Oct 20, 2004, 02:12 AM
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New Zealand
Joined Jun 2004
191 Posts
Lookin good, lookin good!!

Nice build and thanks for sharing your building techniques!
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Old Oct 20, 2004, 10:50 AM
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die fliedermaus's Avatar
Kansas
Joined Jul 2002
539 Posts
Thomas,
I'm currently building an Allegro Lite-E, though my building finesse is much less than yours. Continue posting pics. I am learning.
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Old Oct 20, 2004, 12:40 PM
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ejett's Avatar
Athens, LA, United States
Joined Apr 2002
1,239 Posts
Thomas:

Your craftsmanship is superb. I'm very impressed and also encouraged to start assembling the rest of the parts I need to begin my own build. However, I think I'm going to be awhile yet getting underway.

Keep up the good work and keep posting!

EJ
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