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Old Feb 16, 2013, 05:48 PM
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Vivace - 100" Elliptical wing glider/eglider prototype

Vivace - 100" Elliptical wing glider/eglider prototype design:

Influenced by Dr. Mark Drela's Allegro Lite design with high aspect ratio elliptical flying surfaces. Vivace (lively) is a musical modifier of Allegro (as in Allegro Vivace - fast and lively).

Updated 3-30-13
Modified April 7, 2013 -- larger wing control surfaces, corrected shear web dimensions, and redrew wing ribs.
Modified May 5, 2013 -- edited the wooden fuselage design for longer nose moment.
Modified May 12, 2013 -- Moved indicated CG
Modified May 18, 2013 -- Straightened center section spar so that no angled joint is needed at the center of the CF spar caps.
Modified May 31 -- finer line weight in pdf.
Modified 1-18-14 -- Corrected mis-drawn spar cap cutouts in ribs W1-W7.
Modified 2-10-14 -- Corrected slightly mis-drawn rib length dimensions

pdf: http://wkleinsasser.net/download/Vivace_100_pdf.zip

Drawing files and part cut sheets:
http://wkleinsasser.net/download/Vivace_100.zip
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126" larger wing option

Modified 6-23-13 -- Added enlarged tail section proportional to wing increase from original 100" design.
Modified 7-5-13 -- Corrections to the drawings.
Modified 7-15-13 -- Simplified stab construction, added lost foam fuselage for electric version.
Modified 7-16-13 -- Clarified parts for built up stab and fin-rudder.
Modified 7-28-13 -- Minor corrections as prototype build progresses.
Modified 7-28-13 -- Specifications added and outer panel aileron spar dimensions added.
Modified 8-10-13 -- FIxed some mistakes in the electric lost foam fuselage drawing.
Modified 8-14-13 -- Added a lost foam pod with wing pylon fuselage drawing.
Modified 1-8-14 -- Scaled and separated pdfs to print at full scale on 144" X 36" paper

pdf: http://wkleinsasser.net/download/Vivace_126_pdf.zip

100" larger area clipped-wing option

pdf: http://wkleinsasser.net/download/Viv...ipped_wing.pdf

-----

If you have an Allegro Lite and just want to try out the Vivace wing with it,
here is a modification I have drawn that should mount directly on an Allegro
Lite fuselage (the bolt-beam mounting holes should align). I'm not certain that
the Allegro Lite fuselage has room for the wiring from the four-servo wing,
though.

pdf:
http://wkleinsasser.net/download/Viv...e_fuselage.pdf

Drawing file with parts cut sheets:
http://wkleinsasser.net/download/Viv...e_fuselage.zip

-----

As always all suggestions for improvements are welcome.

W

Photos below
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Last edited by wingloada; Feb 10, 2014 at 10:13 AM.
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Old Feb 16, 2013, 05:58 PM
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Toronto (Don Mills), Canada
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Nice job

Thanks for sharing, I am sure it was a lot of work.

Do you have a name in mind? It deserves something better than 100" Elliptical wing Glider
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Old Feb 16, 2013, 07:17 PM
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Thanks, pmackensie. Yeah, you're probably right. I'll have to give it some thought.

W
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Old Mar 05, 2013, 07:10 PM
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Vivace (lively) is an Italian modifier of Allegro (fast).

W
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Old Apr 07, 2013, 04:10 AM
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украина , чернигов
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super glider , video?
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Old Apr 07, 2013, 07:51 PM
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No flights yet, leons :-). I'll try to take someone with me for video. The weather is definitely getting better here.

I really liked the way your video showed the agility of the Allegro modification that you made. I was inspired by your design to re-draw the Vivace with larger flaps and ailerons. I think the prototype will be OK, but the larger areas will allow for less angular deflection for the same control, I think. The flaps and ailerons are now about 25% of the chord, which is closer to Mark Drela's Supra proportions. We'll see if I have the stamina to build another wing.

W
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Last edited by wingloada; Apr 07, 2013 at 08:02 PM.
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Old Apr 10, 2013, 03:16 PM
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украина , чернигов
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also wanted to make the ellipse but you Wingloada ahead of me
really like how the end of the aileron
with the new year I will do Vivace
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Old Aug 09, 2013, 08:05 PM
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Any progress reports on this one?
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