Vivace - 100" Elliptical wing glider/e-glider prototype - RC Groups
Shop our Airplanes Products Drone Products Sales
Thread Tools
This thread is privately moderated by wingloada, who may elect to delete unwanted replies.
Feb 16, 2013, 05:48 PM
Registered User
wingloada's Avatar

Vivace - 100" Elliptical wing glider/e-glider 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


Drawing files and part cut sheets:

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


100" larger area clipped-wing option



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,


Drawing file with parts cut sheets:


As always all suggestions for improvements are welcome.


Photos below
Last edited by wingloada; Aug 23, 2015 at 12:31 PM.
Sign up now
to remove ads between posts
Feb 16, 2013, 05:58 PM
I don't want to "Switch Now"
pmackenzie's Avatar
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
Feb 16, 2013, 07:17 PM
Registered User
wingloada's Avatar
Thanks, pmackensie. Yeah, you're probably right. I'll have to give it some thought.

Mar 05, 2013, 07:10 PM
Registered User
wingloada's Avatar
Vivace (lively) is an Italian modifier of Allegro (fast).

Apr 07, 2013, 04:10 AM
Registered User
super glider , video?
Apr 07, 2013, 07:51 PM
Registered User
wingloada's Avatar
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.

Last edited by wingloada; Apr 07, 2013 at 08:02 PM.
Apr 10, 2013, 03:16 PM
Registered User
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
Aug 09, 2013, 08:05 PM
Registered User
CoolCanuck's Avatar
Any progress reports on this one?

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Sold Rare - Klingberg Wing 6' 6" wing NIB Future Flight. Glider / Sailplane sst2000 Aircraft - Sailplanes (FS/W) 3 Feb 17, 2013 02:23 PM
Sold 2 meter 2 ch glider $100.00 woodyflight Aircraft - Sailplanes (FS/W) 0 Jan 09, 2013 06:37 AM
Why do elliptical wings get a bad rap? Joel K. Scholz Modeling Science 14 May 09, 2003 06:10 PM
Quick'n'dirty way to find area of elliptical wing? tim hooper Electric Plane Talk 5 Apr 10, 2003 06:28 PM
Elliptical wings beenie Foamies (Kits) 5 Nov 03, 2002 01:31 AM