Radio Controlled Soaring Digest May 2001 Issue
Issue Contents:
Icare Koleos Electric 1.8 M ARF electric sailplane is reviewed with speed400 motor. Leading edge is D-tube. Wing tips are molded. MountingMark is very satisfied with the performance.available from Icare or Tim McDonough at Elec. Flight Products.
The Texas National Tournament had cows in the middle of the winch linearea. Great picture showing the cows. Cows are the lawn mowing equipment.
Scotts father restored a Ke-6E vintage sailplane. What features werefound and what was done differently. A new Ventus 2b was ordered.
A look at the design requirements for a HLG. Ideas for cutting weight inthe fuselage listing weights of the components. Wing and tailplane arerelated to the area. Pink foam with .75 oz glass cloth with reinforced LE and CF spar. V-tail used to minimize damage during landings. Table of AR vs weight for 1.5M wing. Comparisons are made on model polars for different wings and ARs. MA409 airfoil looks very good. Thin sections have abrupt stalls. ARs in the range of 8-10 look good. Theoretical Launch Heights computed. Comparisons made.
Martin Simons Sailplanes 1920-1945 is perhaps the best book on the topicof vintage sailplanes. 3 view drawings and color photographs are excellent.Martins earlier work The Worlds Vintage Sailplanes 1908-1945has been out since 1986 and is considered the Vintage Sailplane bible.
The PN11 design was covered in 1992. Davids Obique model lacks the flightdefects of pitch changes with turns. Features of the design are discussed.
Spoilers 101 Part 2 talks about the installation of spoilers with dialcord actuation from servo inside the fuselage.Servo sizes have decreased is size dramatically. Jerry shows servosfrom 1960 to present day. Small servos in wing allow positive action.
Due to some family medical problems the normal flow of issues has slidsomewhat. The expectation is that it will catch up.
On the Wing Columnist has his Oblique wing design on the cover. Story in Bill Kuhlmans column.
Radio Controlled Soaring Digest May 2001 Issue
