Radio Controlled Soaring Digest September 2004 Issue
Issue Contents:
The Golden State XC Race scheduled for 9-18 and 19 in California Valley. CV Lodge will be the HQ location for Start/finish line. LSF XC Tasks
The Waco CG-4A Hadrian Military Glider may have been the best handling cargo glider is displayed in Daytons Air Force Museum.
Tom reports on Soaring in Alaska. Beautiful photos of a blue sky but rocky flying site. Electric and HLG are most common.
Greg outlines his history of RC Soaring and Magazine Publication. Info. on Mark Millers Isthmus Models of Madison WI. Mark has a number of kits reintroduced from earlier times but with laser cut parts. Mirage and Zephyr2 and Zephyr 1000 later this year. Handy place to find hardware is www.mcmaster.com also a source for technical specs on materials
The CVRC had a “Bent Wing” contest 2004 with 48 contestants. Robin McGowan a young lady (Jr. div.) flew 2 days and took 1 in Jr/sr Div.
Servos with plastic gears are subject to being stripped if a force above the stall speed is applied. A buckling wire pushrod can save plastic servo gear formulas for calculating are given. P = E * I (pi / L) 2 where P = Buckling Load E = Material Modulus L = Rod Length I = bending inertia (pi/64) * Diameter 4
Tip stalls on molded ships are likely. The result of flying too slow or using camber and flying slower than expected.
Finding new slopes 1. Find a hill worthy of slope soaring. 2. Find a hill with minimal trees. 3. Get Permission to fly. Pasture land seems best. Website topozone.com can be used to find the hill. Article accounts how possible sits were eliminated or brought to light. Only dairy farms have clear grassy slopes. Delong Cow farm photos.
RCSDs history form Jim Grays 1984 newsletter to Jerry and Judy Slates publication of 80 pages. Now on-line in Mar 2004. Readership up 400% Judy has relinquished the publication to Bill and Bunny Kuhlman Greg Vasgerdsian a graphic artist returns to assist RCSD.
Gordy Stahl and his Pike after winning 2nd place at Cincinnati Annual memorial contest.
Radio Controlled Soaring Digest September 2004 Issue
