RC Soaring Digest

Now in its thirty-first year of publication

bsquared AT rcsoaringdigest.com

Baby Albatross

May 2014 Issue

FRONT COVER: Jerome Bobin's Multiplex K6E, 4.2m wingspan, flying in front of the Obiou summit (2,789 m) at Corps in the French Alps. Photo by Pierre Rondel.
Canon EOS 650D, ISO 100, 1,1250 sec., f5.6, 95mm

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You can download the entire March issue of RC Soaring Digest (50 pages) by saving this linked PDF file (approximately 8.6 MB). A highly compressed version of this issue (approximately 2.6 MB), with lower quality photos and illustrations, can be downloaded from the Files section of the RCSoaringDigestYahoo! group. You must join the RCSoaringDigestYahoo! group to have access to this PDF.

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RC Soaring Digest is published as PDF documents and is available for downloading on or about the 20th of the month.

Martin Simons'
Thermal Soaring

Walter Jaburek of Vienna Austria has scanned the complete Understanding Thermal Soaring Sailplanesseries written by Martin Simons and created a single PDF which includesall of the articles. This series of articles appeared in RCSDstarting in January 1990 and ending in the November 1991 issue. Thereare direct references to F3J, which had just been made an officialevent, but the topics covered are easily related to all forms of RCsoaring. Topics include the sailpane polar, weight and ballast,turning, drag, scale effects, performance calculation, moment arms andtail volumes, and horizontal stabilizer considerations, along withnumerous others. Well worth the 5.6MB download.

RC Soaring Digest / B2Streamlines is pleased to be able to
make available the DIAMANT Archive containing materials
belonging to Art T. Babiarz, Jr., owner and caretaker of Flug- und
Fahrzeugwerke AG DIAMANT 16.5, serial number 012,
N1193, XX. This vast amount of material is more than likely the largest
collection of DIAMANT information in existence.


PDF versions of Slope Soaring News, published February 1988 through February/February 1990 by Charlie Morey. All twenty issues are now available for downloading.

INDEX thru 2005A complete index for all issues of RCSD through 2005. The search engine is now configured so the results have links to the respective PDF files.

 * Brian Agnew, holder of 15 national titles, shares his expertise regarding trimming an R/C sailplane. (HTML)
 * Dr. Michael Selig wrote two important articles for RCSDsometime ago, and he has given us permission to post both articles on thisweb site - "Flys Faster" and "The Square-Cube Law and Scaling forRCSailplanes." (HTML)
 * "Scaling Sailplanes," achapter from the book"Sailplanes!" by Dr. Ferdinando Gale andAldoCalza, is now available as a PDF document (2.2 MB). Written byDr.Gale, this 53 page treatise explores the physics behindobtaining"scale" performance from a miniature glider. Includesaerodynamic principles and construction materials.

CLUB LINKSA growing list of organizations, special interest groups and clubs dedicated to the advancement of R/C soaring.

Revised 03/04
GettingStarted in RC Soaring? Or want to help others get started in the hobby?Take a look at this full color printable handout the RCSD Teamput together. Includes brief descriptions of thermal and slope soaring,gives aircraft and radio recommendations,and has a list of resources.Last revised 29 April 2004.

B2Streamlines.comRC Soaring Digest is published by B2Streamlines.com