August 2006 Vol. 23, No. 8 – R/C - RCSoaring.com

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Great Planes Fling ARF by Jerry Slates (oldjer@themacisp.net) F or years I have been flying R/C sailplanes with 2-3 meter wingspans. I always wanted to try a Hand Launch Glider, but never seamed to find the time. Now that I have the time, I find that as a senior citizen, I'm not capable of launching a Hand Launch Glider more than three or four times before my body gives out. But then I discovered the Fling, and its mini-histart. This I can handle. I ordered a Fling, and when it arrived I couldn't clear my work bench fast enough to get started with the Fling's assembly. Opening the box there were only a few bits and pieces. Two wing halves, fuselage, stabilizer with hinged elevator, fin with hinged rudder, a manual, and two plastic bags. One bag contained a wing joiner, trailing edge support, two carbon fiber wing dowel's, two control horns, and some rubber bands. The other bag contained an already assembled mini-histart, with 30 feet of surgical tubing and 200 feet of tow line, along with a hold down stake. I started construction by doing the tail assembly first. I had to remove a small strip of the covering from the center of the stabilizer, top and bottom, so that I could glue the fin onto the stabilizer, and the stabilizer onto the fuselage. Next, I joined the two wing halves together and set the wing aside to cure. Going back to the tail assembly, I then installed the two control horns into the rudder and elevator. After installing the servos, receiver and battery pack, I tied the pull-pull control strings in place and adjusted and adjusted again. After adjusting the pull-pull control strings, I installed the carbon fiber wing dowels and I was done. From the time that I opened the box to the completion of the Fling, only took four hours. This includes some lunch and feeding the cat. With the servos mounted in place, receiver in front of the servo's and the battery pack mounted under the wing, the Fling balanced almost on the money, just a 42 R/C Soaring Digest
Wingspan Wing area Wing loading Weight Radio 48.75 in. 285 sq. in. 4 - 4.5 oz. per sq. ft. 6.5 - 8 oz. 2 channel, rudder and elevator August 2006 43
Page 1 and 2: August 2006 Vol. 23, No. 8
Page 3 and 4: R/C Soaring Digest Managing Editors
Page 5 and 6: Isthmus Models Soprano RES A review
Page 7 and 8: August 2006 7
Page 9 and 10: which two slots need to be cut in t
Page 11 and 12: Soprano RES Span 122 inches Area 99
Page 13 and 14: Maple Leaf Design Encore Fabricatio
Page 15 and 16: Left: Foam horizontal stabilizers w
Page 17 and 18: Left: Grooves are milled in the tab
Page 19 and 20: Left: Completed vertical fin array
Page 21 and 22: Left: Press fit of boom allows easy
Page 23 and 24: Left: Hinge line milled on one surf
Page 25 and 26: eputedly well into next year. I am
Page 27 and 28: senior team has won two flyoff plac
Page 29 and 30: to climb higher than in Canada and
Page 31 and 32: Might sound an obvious question at
Page 33 and 34: Challenge 2006 Dean Thomas (dean@st
Page 35 and 36: Scott Meader and SB/XC, with slight
Page 37 and 38: Team Tiltman 273. Dean Thomas spott
Page 39 and 40: Day 1: Two Hour Speed Task Place Te
Page 41: Controls: Outer Aileron, Inner Aile
Page 45 and 46: Joe's Wing Geometry Program by Jose
Page 47 and 48: Figure 3. Enter a span of 40", root
Page 49 and 50: Phil explaining how to set up and p
Page 51 and 52: Left: Adam helps Dan Neelands tune
Page 53 and 54: In a thermal, always turn in the sa
Page 55 and 56: The small lake front dunes of Sauga
Page 57 and 58: A Michigan Sail-Possum and the adja

August 2006 Vol. 23, No. 8 – R/C - RCSoaring.com

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