Radio Controlled Soaring Digest March 2000 Issue
Issue Contents:
Implementing a Split Flap system can be a problem. Bill Kuhlman suggestsa system that can be used. This is Part 2 of the X-4 project.
Tail slide illustrated and more on changes in the Akro-cup 2000. The taskis listed and scoring system described. An unknown routine introduced.
Handbook of Glider Aerobatics by Peter Mallinson Mike Woollard is a goodresource for students and instructors. Covers all aspects of FS aerobatics.
SD7038 SD7035 and RG15 are compared and in the process the tools needed toevaluate airfoil performance on a model are discussed. Cl Cd Cm CP CG
Gordy describes how to mount servos into hollow molded wings. Plywoodmounts seem to make the most sence. Heat of 5 min epoxy can distort wing.
A build along project called the Flamingoid which looks like a flamingobased on 2M Gnome. 60″ and 3M Gnomes are also available from Bob Sliffsmodel service (BSL140@aol.com) The head is an Am. Yard Flamingo”high head” item. Details on how to get what you need to build along.
Swept Wings and Dihedral Pt. 3 Sweep dihedral change effective dihedral.Less dihedral and more V fin needed for higher speeds. Effect of WingLocation Wing Tip Contour (equation given). Sweep increases effective dihedral. Winglets increase effective dihedral (equation given) Swept wing with winglets may suffer from excessive dihedral and is worse at high Cl. Compensation includes angles on winglets.
Scott talks about Siskiyou County Airport and the sailplane events that areheld there including XC and full size. Montague XC Challenge is in June.
Article about the designer of the Baby Albatross – William Hawley Bowlus whoworked for Ryan Aircraft and later ran his own sailplane company.3 view drawing of Bowlus Baby Albatross drawn by Martin Simons.
Part 1 of the series on the Baby Albatross. 1975 Model Builder Articlevia Bill Northrops plan service and photos from Scale Model Research.
The Elmira Aerotow Banquet is being moved from Friday night to Saturday June10th. Social hour will begin at 6:30 pm.
The RCSD Index is updated to include 1999 and is available on the RCSD webpage. There is a MAC version of the index on the page now.
Cover page shows Dave Sanders and Tom Atwood flying a DAW Foam-51 at Cape Cod MA. Bob Martin Coyote in foreground.
Radio Controlled Soaring Digest March 2000 Issue
