Bird of Time (oz2093)


Bird of Time - plan thumbnail image

About this Plan

Bird of Time - Sailplane.

Quote: "...first published as a free reduced scale plan in the January 1979 issue of Radio Control Models or RCM. (USA) Designed as an Open Class 118in tow line sailplane, it seems to have had a renaissance of late with a Balsa Kit & an ARTF Fiberglass Fuselage version by Dynaflight."

Update 31/03/2014: Added supplemental eBIRD wing plan (modern alternate high performance wing), thanks to DavePayne. [see more pics 004, 005] An alternative high performance wing design.

Quote: - "Steve, Here is my plan for a high performance wing (non-polyhedral) for the Bird of Time. It has ailerons and flaps so 'crow' or 'butterfly' settings can be used. I would like to contribute it for those people who would want to build an advanced version of the BOT or add another wing option to their current BOT. DXF files for laser cutting will also be available. Here is my build log with photos: The design has been tested and performs beyond my expectations. Using slight amounts of flap adds to the camber for still air and really improves the glide ratio. Also negative flaps helps to de-thermal a ship that is in a monster thermal. Landing with 'crow' makes precision spot landings a breeze. I am the author of the design. DavePayne"

Update 12/12/2014: Replaced this (the main) plan with a clearer version, thanks to theshadow. Also added alternate version of same plan as a supplement (another good clean scan) thanks to Thermaler.

Update 04/01/2016: Replaced Article file with a more complete copy (fixed missing text on p5) thanks to RogerClark.

Supplementary file notes

Article pages, text and pics, thanks to Thermaler, hlsat.
Alternate version of the fullsize plan, thanks to Thermaler.
eBIRD wing plan.


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Bird of Time - completed model photo



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User comments

Today I send you some new photos of our secondary activity: RC sailplanes. The Birds of Time are something very special for my son and I. We have won several National Championships and we do not stop to keep and fly a few [more pics 006].
AntonioRG - 16/01/2017
Here are some photos of my Bird of Time, which I completed in the summer of 2018 [more pics 007-010]. This iconic design flies as well as it looks! Thanks for the service you provide through this website.
MarkF_Tucson_AZ - 21/01/2019
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Download File(s):
  • Bird of Time (oz2093)
  • Plan File Filesize: 1704KB Filename: BirdOfTime_RCM-751_oz2093.pdf
  • Supplement Filesize: 1356KB Filename: BirdOfTime_RCM-751_oz2093_article.pdf
  • Supplement Filesize: 78KB Filename: BirdOfTime_RCM-751_oz2093_eBIRD_Wing_V3.PDF
  • Supplement Filesize: 2885KB Filename: BirdOfTime_RCM-751_oz2093_plan_Thermaler.pdf
  • help with downloads


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