Radio Controlled Soaring Digest January 1994 Issue
Issue Contents:
Pick 20 scale fuselages are available in different colors and set up forHQ airfoils. (514) 449-9094
Aero*Comp software allows calculation of performance indexs such as climb rate for different motors
Klingberg Rocket Wing is 52″ version of 2M klingberg wing with rocket launch capability. Can be launched from a highstart. “E” motor launches to 600′.
NASSA organization news is discussed and dues structure for 1994. AMA numbers of members are needed.
A method for installing removable servos in hollow core wings is described. Photographs included. Robbe Servo Lock servo mounting device used.
Turbulator experiments by Al show that the average model can benefit from turbulators placed at 60% of chord. One of the best articles on the topic.
Instructions for installing wing rod carrier tubes and alignment pins in a fuselage are discussed. Good practical information.
Using a pin extension of transmitter trim ratchet helps find the trim.Use thermoformed packages for mixing epoxy.
Hinging spoilers on forward side seems to minimize pitching down momentand also improves elevator compensation on computer radios.
Simulation was made of winch launching. The mathematical model is described the vectors being included in the model.
Repair of a broken fuselage is described using repair parts molded from the outside but installed on the inside of the model. Pretty slick!
Cont. servo endpoints
The Airtronics Infinity 600A and 660 Sailplane version are compared.Same case
Techniques for launching and flying large scale ships. This is not as easy as it seems. Slope launches and winch launches are both covered.
Question posed by a reader is answered. Why don’t US flyers fly larger models.
Great story about flying when someone’s pet dog goes after your pant leg.
Match the weight of your model to your throwing ability. Heavy model requires a good arm. Technique is important..
Save weight on wings by using sanding sealer instead of film covering. Model Research Lab’s Sanding Sealer and Glider polish was used
2M Gnome was purchased from an unhappy owner. After the wing LE was redone and the wing servos minimized it flew much better.
Martin continues with drecriptions of full size X-country soaring theories. Information used in his MARCS symposium persentation.
“Do you Speak Airplane” by Dave Thornburg covers the modeling done during the 20’s and 30’s through 90 years of trials and accomplishments.
Zahlmann’s Horten XV modifications for a 2.4 M RC model which will thermal. Model is 3 piece has two mid fins/fences and launches with a highstart.
An improvement to the Feather Cut Foam Wing Cutter by Tekoa is noted. The change has to do with the mounting of a wheel. Diagram included.
Rocket by Mark Allen is discussed. The model was turned into a 2M glider and found to be very effective at 31 oz. Zooms are excellent.
Using servos mounted to covers and not wings allows servos to be moved from one model to another without the expense having servos for each wing.
Good advise for selecting aspect ratio
Lodging Listed for World Soaring Jamboree in Washington State in May 94.
1994 LSF Masters competition will be held May 14 and 15th in Covina
Radio Controlled Soaring Digest January 1994 Issue
