Radio Controlled Soaring Digest March 1994 Issue
Issue Contents:
F3B Eagle is a moulded composite sailplane for F3B use. 112″ Span
The Merlin is a 50″ HLG with plastic pod and boom construction with builtup wing. The Modis is only $36.95 + $5 S&H. (301) 923-2414
A tip stall on launch will destroy your model. Pull tension
SOAR club of Chicago shows their metal by flying on New Years Day in bad weather. Photo of participants is shown.
An area approach is used to determine the position of the pivoting pointfor wingerons. 33% of MAC is determined by calculations.
Another entertaining article about trimming.
Jeff attempts to educate RCSD readers about the use of the term modified with respect to a named airfoil. Nothing can be said about the performance.
AMA has a training tape on judging glider aerobatics. Larger Anabats arein production & new models under development using the same technology.
Continued. More info on how these controllers handle over heating
More info on speed controllers. On/off control is not recommended for gear reducers. Soft start and BEC features have value. BEC works for <10 cells.
F3I aero towing provisional rules are listed. The automatic altimeter is described which will transmit a signal to back to earth. Sources given.
More information about the NASSA organization and goals. The achievement program includes achievement for building and flying. $3 Transaction Fee.
Stability considerations for dihedral and polyhedral wings are considered. There is interactions between rudder/fin size and polyhedral.
A FAA database/library of aircraft and owners of full size aircraft.The database gives names and addresses which can results in needed info.
Formats for competition are discussed with the logic about the selections given. Characteristics of typical competitive model are given.
Sewn thread hinges eliminate several problems associated with high friction gaps
X-country Soaring Cont. Causes and cures of Pitch Oscillation
A description of what it will be like to go soaring with virtual realitybut not yet accomplished although possible.
Ubara flying wing design comments are continued from previous article. Analysis of why tip removal improved performance. Less Drag!
Point of the Mountain in Utah is an excellent flying site with an good LZ and opportunities for very high altitudes. Primary slope is 500′ high.
Light article about how sailplanes and cars often share the same names: Falcon
Mounting wing rods in fuselages can be tricky. Using tracing paper and a pencil to note the position of the wing rod at the root is a good tool.
Obtaining a good radio in France may mean that you look at the Super TEF. Mr. Thobois is a retired teacher who builds these great radios.
Low humidity is a major contribution in the buoyancy of air according to P. Pancho believes that humidity keeps the air from heating faster.
Cover story of slope soaring in S.Africa includes soaring off small seaside slopes or from larger seaside hills.
T.U.F.Line plus from Western Filament Inc. has a 30 lb test value and is very small. High starts perform much better because of the lower drag.
Radio Controlled Soaring Digest March 1994 Issue
