Bird of Time HLG (oz12664)
About this Plan
Bird of Time HLG. Simple all-sheet glider model.
Direct submission to Outerzone.
Quote: "Hello, My name is Rodrigo Burgo, I'm from Brazil. The lines of the Bird of Time (oz2093) glider have always caught my attention. So, I thought, why not make a HLG version for fun? So I started to make some doodles and ended up creating the project I'm sending [model photo & more pics 003-007]. The built model is 7 grams total (with ballast). Very light construction, with wings created with hand-sanded profiles, dihedrals and gull wing structure with folds in the balsa plate. A light and very attractive model, for flights on windless days. Guaranteed fun."
Update 13/12/2020: Added alternate version of the plan, to print on 8.5 x 11 paper, thanks to JanNovick.
Supplementary file notes
Alternate plan (8.5 x 11).
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User commentsMy computer warns me this is exactly PDF compliant, it being PDF /A.. it "may cause issues". Check it?
fred - 11/12/2020
Seems standard to me. I am using free Reader DC on a Win10 PC to view PDFs. When I open this one, I get an info bar at the top saying "This file claims compliance with the PDF/A standard and has been opened read-only to prevent modification" and I also get a button to "Enable Editing". There is no warning. I see no issue :) Most importantly, this is the file and format that Rodrigo (the designer) sent in to us. I am not keen to start editing/hacking his file.
SteveWMD - 11/12/2020
I too got that message with my Windows 8.1 when opening the downloaded version. I clicked on "enable editing" and the message goes away. I then saved the plan again and the message does not come back. I printed at full size on standard 8/12" X 11" paper and saw that it would crop off some of the white area around the plan and a very small section of the rudder.
I can live with that!
Mike Foster - 12/12/2020
OK thank you ..Delving further; file does work despite Dire Warnings from My Tracker software PDF suite ..Seems it's an old (iffy?) Corel conversion pdf, not being fully pdf compliant.
fred - 12/12/2020
So the file also works fine, for you. So there is no issue - other than your chosen brand of PDF viewer throwing up a warning message. Here at Outerzone we recommend users view the PDF files with Reader DC, see https://outerzone.co.uk/knowledgebase/entry.asp?ID=104. Using other software, you're on your own - in the sense that we can't support you, or indeed replicate your issues.
SteveWMD - 12/12/2020
Hello guys, I only exported it in pdf ... the drawing is in Corel Draw and must be printed in A4 or in a scale that can be printed in A4 .. if it is of interest it can be reduced in % at the time of printing.
Rodrigo Burgo - 12/12/2020
Hi Rodrigo. It's all good. Many thanks for the plan :)
SteveWMD - 12/12/2020
Stits' Paradox: "The shorter the wingspan, the longer the comment section."
Miguel - 13/12/2020
For those who would like it, I'm submitting a copy of Rodrigo Burgo's Bird of Time HLG re-formated to reproduce on U.S. Letter size paper (8.5 x 11)
Jan Novick - 13/12/2020
This is a nice little design and plan--thanks Rodrigo. I'm curious about the difference between the "flat span" of the drawing (20-3/8") and the 44cm (17.3") that you reference in the notes. The only way I could get that measurement ("projected span") was to set the inboard panels at 48º dihedral, with the outer panels at 0º. Your photos appear to show a much shallower inboard panel dihedral... (BTW, when I selected "Allow editing" of the pdf, the measurement tool became active. it is very handy for calculating area, angles, etc.)
Dave D - 13/12/2020
Ah, right. I think maybe the model shown in the pics is a slightly reduced scale version? Certainly the wing on the plan is ~ 20.3 inches
SteveWMD - 13/12/2020
You are correct... I reduced the scale to be able to use some balsa wood leftovers I had in my hands ... if I remember correctly, it was 90%
Rodrigo Burgo - 13/12/2020
Where are the dihedral details?
Pat Meehan - 19/12/2020
For gullwing, first section with 20 mm and in the second section 10 mm...
Rodrigo Burgo - 26/12/2020
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