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Front cover:
A Ceres exiting a manoeuvre with Lions Head (SA) in the background.
April issue is online www.rcsoaringdigest.com
Highlights
Petre III - Peter Abell's 2-channel 2 meter RC sailplane.
Reprinted from RC Soaring Digest July 1984.
Two Oceans Slope Soarers - Slope Aerobatic Event 2017
Complete text coverage of the annual event.
Glue Caddy
Steve Henderson describes the motivation behind his compact and efficient glue caddy and includes a matrix of materials and appropriate adhesives.
Gordy's Travels - Choreography of an F3RES Contest
Whether you're an aspiring participant in this new Class or are a potential CD, you need to read this 3-page description for setting up an efficient event. Gordy Stahl covers team formation, flight timing methodologies, and standardizing hi-starts.
Minimizing Slop in Control Surfaces
Dieter Mahlein describes the multitude of sources of both soft and hard slop in RC control systems, along with appropriate solutions.
Wing Tip Devices
Various wing tip devices have been designed, experimentally examined, and incorporated in aircraft for over the last four decades. Chuck Anderson has been experimenting with wing tip devices for RC sailplanes over the same time frame. Here he presents his findings and explores a possible future for them with F3RES.
Tom's Tips - Magnets, magnets, magnets
An attractive method for keeping frequently used tools close to hand.
Slope Soaring Candidate - Ilyushion IL-52.
An obscure Soviet swept wing tailless bomber is the subject of this exposé.
F3K Team Fundraiser Clinic and Competition.
Held at Levin, New Zealand, April 1-2, 2017.
Australian International RC Glider Event.
F5J, March 10 2017, and F3J, 11-12 March 2017.
Gordy's Travels - The Elegance of Contest Landings.
Spot landings are often referred to as dork landings, or even crash landings. Here's another perspective.
Gordy's Travels - Hey, F3RES'rs! Rubber Milk is back!
Protect your hi-start from deterioration with this product.
The Darmstadt D-17 and Chanute Sailplane.
History of the D-17 airframe, from its original design, construction and flying in Germany, through its extensive history in the US, including its reconstruction as the Chanute and eventual destruction.
Performance Increase Possibilities of Gliders.
A reprint of the DG Flugzeugbau library web page. Covers boundary layer suction, winglets, and flaps, plus a section on measuring L/D.
The Sokol Glider.
Uroš Šoštarič examines this postwar sailplane, circa 1947, and describes in detail the building of a six meter 1:2.53 scale model.
Egret and Kite - Two wood sailplanes.
2 meter and 100" spans, designed by Tony Beck. An introduction to the overall design philosophy, a complete illustrated construction manual, plus links to downloadable full size plans (pdf).
How to lose or break perfectly good slope planes.
Everything you need to know about avoiding catastrophic events on the slope.
Slope candidate - Bell X-2 Starbuster.
Although it has a less than sparkling and some might say depressing history, slope soaring enthusiasts may find this aircraft to be well worth modelling. This would be especially true if an identically scaled B-50 could serve as mother ship.
Panelling a wing with plywood.
Five videos describe the use of PVA and heat to mold a D-tube. Loads of fool-proof information in under a half hour. Videos downloadable from www.scalesoaring.co.uk.
Bell X-2, crew, B-50 mothership and support equipment
Dream-Flight Ahi
Introducing the newest release from Michael Richter's Dream-Flight LLC.
Ahi First Impressions
Dave Garwood received a pre-production kit, assembled it in just over an hour.
Horizon Hobby Aerotow 2017
Text and photo coverage of the annual event held in Monticello Illinois.
ReMotCam F3F
Álvaro Silgado has worked for over a year on a digital video camera and computer method for automatically timing F3F (FAI Slope Racing) flights.
7th Annual Katie Martin International Tribute
The history of this popular event, now being celebrated by groups here in the U.S. at Torrey Pines California, in England, Venezuela and Germany, and by two groups in Spain.
100 Days at Torrey Pines.
Experiences moving to and flying at the premier California slope site. This is the first part of a two-part series.
Wood Crafters 2017.
This annual reunion was held June 3-4 and featured e-power and non-powered RC sailplanes of a wide range of eras.
On the Hills of Ranà.
Text and photo coverage of the annual event held in Monticello Illinois.
ReMotCam F3F.
A beautiful soaring site in the Czech Republic where a large number of classic full size vintage sailplanes were on display and flown.
Science mimics nature.
Microsoft esearchers test AI-controlled soaring machine.
Catch-and-release sloping.
Philip Randolph travels via the Washington State Ferry System to Whidbey Island where he experiences the classic fisherman motto in multiple dimensions.
FrSky G-RX8.
This 8-channel receiver with built-in variometer is specifically designed for use in RC sailplanes.
Martin Simons' Sailplanes volumes available again!
Three books covering 1920-1945, 1945-1965, and 1965-2000 are once again in print.
100 Days at Torrey Pines, Part 2
Will Bushnell relates his experiences moving to and flying at the premier California slope site.
English Open F3F
Held August 19-20, this event drew 26 competitors to Whitesheet Hill.
RC Bald Eagle
Long term project focused on developing a realistic radio controlled bird.
e-Windsong
Take an RTF Windsong which you've had for years, cut off the nose, install an HK Gliderdrive motor, and you have a repurposed/modernized airframe which flies beautifully.
Kit review - Dynaflite Bird of Time
Dave Thornburg's classic Bird of Time design as produced in kit form by Dynaflite.
Photo Album
IX Asturias International Open F3F
CEWAMS Eclipsed
Slope flying during a total eclipse — what could be more exciting?
TALES - Task Altitude Limited Electric Soaring
Gordy Stahl explains the differences between ALES and F5J.
Jack "Papa Smurf" Iafret responds with a detailed description of a new event invented by The Greater Detroit Soaring and Hiking Society.
PSS Candidate - Dassault Aviation Mirage F1
A number of available color schemes and national emblems, plus a recent purchase of more than 60 of these aircraft by a private firm make this an attractive design to model.
GliderCG
Uses the barycenter formula to obtain the precise calculation of the RC sailplane center of gravity.
It's all about lift
In addition to thermals, there's also hill lift, wave lift, sea breeze fronts and air mass changes which can keep sailplanes airborne. Chris Bryant, full size sailplane pilot and RC soaring enthusiast, explains all.
Flutter II
Chuck Anderson talks about control surface flutter with a reference to Jerry Ritz' Standard A ultralight.
Rock Bouncers
Slope soaring often involves landing on inhospitable terrain. Philip Randolph presents a comprehensive list of suggestions for improving the chances of taking home a sloper in one piece.
Albuquerque Soaring Association First Annual F3RES International
Complete text and photo coverage of the 11-12 November 2017 event by Greg McGill.
Little slope, big model
Tomasz Lis took his 1:3.5 scale WWS3 Delfin model to a little (25m) slope in Gliniska Poland during Christmas and flew for more than two hours.
PSS Candidate - Hughes XF-11
The history of the famous twin-engine, twin-boom reconnaissance aircraft along with photographs and 3-view plans.
An Innovative Method for Acoustically Rendering Climb Data for Model Gliders Using Shepard Tones
Mapping two different altitudes which are hard to separate optically by way of two different tones with nearly equal pitches which otherwise can hardly be distinguished.
2nd Annual F5J Trophy Event
Text and photo coverage of the November 2017 event held at the NAAS field just outside Canberra on the first weekend in November 2017. Reprinted from Electric & Glider FLIGHT Australia, No. 11, January2018, pp. 3-7.
Millennium Cup Goes Electric
Reprinted from Electric & Glider FLIGHT Australia -No. 11 - January 2018, pp. 12-13, with complete rules included.
Florida Soaring Society FSS#1
Text and photo coverage of the recent Florida Soaring Society event in Christmas, Florida, late January.
Dover partners with Air Force Research Laboratories to innovate in fuel efficiency
The AFRL adds Microvanes to the rear of a C-17 at Dover Air Force Base.
PSS Candidate - Hawker Hunter
A very streamlined and graceful aircraft with relatively small engine intake openings and a large wing area.
Hobie Hawk Restoration Part 2
Paul Naton completes the restoration of his decades old Hobie Hawk. Paul includes a detailed description of the modifications made to the wing mount which decreased the decalage and gave a performance boost.
Vladimir's Model PLUS
A complete and detailed review of this light weight high performance F5J machine by Sherman Knight. Design description, field assembly, transmitter set-up.
Torrey Pines Gulls - International Hand Launch Glider Festival
An album of photos by Ian Cummings/Ian Cummings Photography.
CEWAMS April Saddle Mountain Slopener
Another spectacular eastern Washington travelogue by Philip Randolph with photos mostly by Michelle Lyons.
How to make ...Carbon Fiber Pushrods
Grab some carbon fiber tow, a small container of epoxy, and go for it! By Evan Shaw.
Leading Edge Flaps - El Niño Especial
Alex Hoekstra adds leading edge flaps (LEFs) to his 3.9m El Nino F5J. With a polar diagram and additional comments by Marc Pujol and Neil Stainton.
Correcting Bad Behavior
Using a medieval instrument of torture enhanced interrogation on an innocent little airplane or (in tawdry realism) twisting washout into a hollow molded wing. By Philip Randolph.
Gliders at the SAM Champs
The Society of Antique Modelers will have three RC glider events at the AMA Muncie flying site from Monday September 24 through Friday September 28. Information from Larry Jolly.
DISSMRPDIR0218
Giuseppe Ghisleri describes a mechanism to make large scale glider rudder removal a snap. With a drawing by Renato Piazzalunga.
2018 Horizon Hobby Aerotow
Text and photo coverage of this annual event.
Vintage RC Event - Litomyšl, Czech Republic.
Antique and vintage free flight models, both fueled and electric, along with gliders, fly thermal duration tasks with the assistance of radio control.
Homage
Homage to the greats of free flight.
The need for speed
Kevin "Rowdy" Botherway and five others, including Joe Wurts, compete in a relatively laid back weekend F3b speed practice session.
Traveling with and charging our radio gear
Recommended domestic and international traveling equipment.
ZunZun - A parametric pod design for RC-DLGs
A computerized model for creating pods with variable dimensions.
Flutter III - Controlling flutter
An examination of the various methods for inhibiting control surface flutter.
Landing on! (Not landing out!)
Adventures with E-Assist soaring on the slope.
PSS candidate - Myasishev M-17 Stratosphere
The background for Dr. Paul Clark's model featured in Model Builder magazine, September 1992.
Aerotow candidate - Jim Maupin's Carbon Dragon
This ultralight sailplane with full span flaperons and a unique spoiler system is begging to be modeled in large scale.
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