Radio Controlled Soaring Digest June 2002 Issue
Issue Contents:
Humorous story of Gordys Discus Launching Seminar.
A comparison is made to a teeter totter where the nose of the model is theheavy kid on the teeter totter. When the model goes faster the liter kidbecomes heavier puling up the nose. The elevator should be able toadjust the AOA without big effects on the airspeed. A nose heavy modelwill only be in balance at one speed. Now you can understandwhy the dive test works. – ljm
Inland Slope Rebels 5th. Annual Spring PSS festival is covered. PSS =Power Scale Soaring. Models dont have power but originals did. WWIIfighter models are good models to use when fitted with slopesoaring wings used for models. The wind comes up each day at Cajon asthe desert heats up and pulls cooler air from the coast throughthe passes in the mountain range. Two hills at Cajon accommodate smallfast models on one hill while slower models with a better landingzone on the higher hill. Dave Garwood Photos.
Art Frost sends in a letter describing how he built a Jantar Glider froma Viking Model FG Fuselage. The wing is foam and obechi made in 4sections with different X-sections. Weight is 12.5 lbs with awing loading: 19 oz/sq ft. Cockpit build based on photos from factory.
Lift and stall distribution for swept wings of various shapes Part II isexplored. This offers some excellent insight into wing selection.Swept wings cause a pitching up at higher angles of attack makingstalls deeper. Swept back wings stalls at the tip – Swept forward at root.with swept back wings washout maintains a constant angle of attackacross the span.
Status of LSF Recommendation that foamy combat be allowed in AMA rules.
Photo of Caravelle VI at S. CA PSS Festival in May 2002. Back cover photo of AG Intruder owned by Dave Garwood.
Radio Controlled Soaring Digest June 2002 Issue
