Radio Controlled Soaring Digest April 2001 Issue
Issue Contents:
Receivers have sometime been too big too glitchy. New FMA models arebecoming smarter in that it discerns between noise and the signal.
David has perhaps the first windows version of a performance program thathe is willing to share. The order of calculations are given and how heproduced the data including interpolating between data points oflift and corresponding drag. An example is given. The contribution ofparasitic induced and profile drag are compared by lift coef.of the wing of each of two compared designs. Very instructive.
Penumbra series notes. Constructed over pink foam with vacuum bag skins.All use Panknin spar system. Diagrams of 5 versions with lots of data.Stability values projected by Panknin are accurate in practice.References given.
Spoilers 101 pt 1. covers the size and placement of spoilers. They createturbulence that can interfere with the H. stabilizer.
New rules are being considered and discussed. See the AMA and RCSD websites for more information.
Martin Simons latest book Sailplanes Volume 1 1920-1945 is now publishedand available from Vintage Glider Club Sales in England. The book isavailable in two versions English and German.Plans are for the book to be sold through Amazon.com.
R&R Synergy 5 is shown flying at Fresno slope as Gordy does Dynamic Soaring.
Radio Controlled Soaring Digest April 2001 Issue
