Balsa dlg glider

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Discus Launch Glider

The ELF is a small discus-launch glider ideal for sport flying while on travel or in your neighborhood park. Drela's HLG glider design, the Apogee. Due to it's low weight, with a scant wing loading of 2. Pod - Features a transparent yellow or white injection-molded pod. A custom carbon boom is connected into the pod, on which the receiver battery a one-cell mAh LiPo pack with an integrated charging circuittwo servos and the receiver are mounted on. A removable nose cone allows for easy access to RC components. Wing - Carbon D-Box construction and carbon-capped balsa ribs combined with a vertical balsa grain spar provide a stout one-piece wing. A carbon "T" launching blade that is capable of being installed on either wing, allows for comfortable launches. The wing is professionally covered in Violet, Blue or Red Oracover to provide strength and stiffness. Tail - The tail surfaces are composed of light-weight foam, which is reinforced with carbon, fiberglass and then vacuum-bagged. A one-gram miniature v-mount allows for the full flying stabilizer to give the pilot infinite pitch control. Carbon push-rods are pre-installed.

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The thought that one can hand launch a model glider to ft altitude seems amazing — but is possible with Discus Launch Gliders DLGs. To launch one holds the glider by a finger grip on a wing tip and then one spins around as throwing a discus. With the gliders weighing around g 11oz the 25g force comes out at 7. Also look at my flight later in this instruction. The need for high strength, light weight and clean aerodynamics means that a composite built model is needed. I had started with a cheap HobbyKing model with conventional covered balsa wings which was great for testing interest but was higher drag and hence gave poor launch heights. Hence shorter flights and less time to find some lift. The kits comes with the moulded wings and fuselage complete and with hardware to build the control linkages. The rudder also has to be attached to the fuselage - that was a bit more difficult with my kit. The mount for the all moving tail has to be glued in place. However the major activity is installing the radio gear and control hardware. I did several things differently to the instructions in order to save weight and make a neat installation. I hope some of these will be useful to other builds of DLG kits. In particular I mounted all 4 servos in the nose to reduce the nose weight required and hence reduce the overall weight. I also used a neater, more maintainable and lighter servo mounting system. The control horns were all replaced with lighter carbon ones and their length was carefully set to match the servo arm length and movement that was possible within the confines of the nose cone. Before starting I weighed and found the centre of gravity COG for each of the parts, plus servos, radio and battery. I put these into a spreadsheet so I could see where the final model COG was likely to be. From this it became clear that I would need less nose weight if I put the aileron servos in the nose rather than the wings. I had seen comments on doing this but no examples— a gap that I hope this instructable fills. Did you use this instructable in your classroom? Add a Teacher Note to share how you incorporated it into your lesson. The Blaster 2 has an all moving tailplane mounted on a carbon V mount. The mount has to be fitted before the rudder as it slips over the boom. This was because the V mount assumes parallel top and bottom surfaces and the elevator was essentially triangular in cross-section from the mounting plate to the trailing edge. To correct this I filed a piece of 0. See photo above. The target is to have the trailing edge of the elevator 5mm in front of the leading edge of the rudder. This position was found with rudder fitted loosely. Masking tape was wound around the boom forward of the mount so it could be positioned easily with adhesive applied. I prefer epoxy to cyano as it gives a longer handling time and a stronger joint. I had also sanded the mating surfaces for a good joint. In order to get the elevator flat relative to the main wings the mount was fitted with the main wings in place and the elevator attached to the mount. The alignment was checked carefully before leaving for the epoxy to set. The rudder glues into a slot the rear of the carbon tail boom.

F-84 Thunderstreak


Write a review. Review by: Philip Whiteley. I ordered an Elf from Hyperflight, it was dispatched within 24 hours and arrived at my doorstep in Australia in about a week. The model was well packed and arrived undamaged. The Elf is a work of art and no doubt it will fly as good as it looks. The service that Neil provides is first class and my other purchases have all received the same attention. I will not hesitate to purchase from Hyperflight again in the future. Review by: Trevor. ELF ordered on Friday and received on Monday! Very well packaged in a strong cardboard box. I have to say I have used Hyperflight in the past and have always found the service excellent. Review by: Martin Pile. Great little glider to put togetheralthough manual could be updated as pointed by other purchases. No missing parts and arrived in a very sturdy box and in good condition by parcelfarce within a couple of days of ordering. Nice to know the glider is well rated on RCGroups and Hyperflight as well. Review by: Stephen Crisp. Service was outstanding. The ELF is a beautiful creation - not flown her yet, as I'm awaiting my new transmitter. Final weight will be around 94 g. Build is fairly straightforward. Complimentary wing bags are a nice touch. Packaging is excellent and ELF arrived undamaged. Bluebird servos are also of a superb quality. Review by: Nick. Elf finish and fit is first class, build is easy, its all but finished. The instructions and accompanying photographs make final assembly easy. This coupled with an inspired design make this first DLG model a great choice. I'm very pleased. Review by: Mike. The Elf seems hard to get a hold of so as soon as she was available, I did not hesitate to order : The package arrived within 5 working days. The packaging was simple and effective, thus reasonably light.

Discus Launch Glider Build


It only takes a couple of evenings to build and has a removable wing so you can easily transport it to the flying field! While it is possible to fly this model with a 4 channel radio, you will need to fly with a forward CG and use a y connector to slave the ailerons, which will eliminate the flapperon function. I recommend at minimum a Spektrum DX6i or equivalent Flysky i6 may be sufficient with a micro receiver. Stay tuned for an upcoming build article at Flitetest. The article will clear that up, and we will share critical segments of it here. Name Required. Mail will not be published Required. We specialize in model airplane designs and components of unique design that are not available from any other supplier. Our products are proudly made in the USA from top quality materials. In addition to the products offered here, we take custom orders including new product design. Powered by WordPress. Designed by. Up to 3 servo extension wires battery and aileron servos, depending upon length of wires—I only needed a battery extension. Masking tape, packing tape or BlendermCA glue, and hot glue. New Indoor Models! Leave a Reply Click here to cancel reply. All Rights Reserved.

Discus Launch Glider Build

A Discus Launch Glider DLG is a radio controlled model sailplane launched using a 'discus launch' in which the glider is held by a wingtip and the flier rotates rapidly before release. The discus method of hand launching has become more popular than the older 'javelin style' launch, where a model glider would be launched over-arm, like a javelin. The discus launch is easier, more efficient and less physically demanding than the javelin launch. After launch, fliers search for lift in the form of thermals or other rising air currents to increase the duration of their flights. Besides launch height or duration, competitions may also include tests of glider flying skill, precision landing, and timing. Although some DLG designs utilise a traditional built-up construction using balsa wood and covering film, most DLG models are generally now constructed from composite materials, in the form of Kevlar, carbon fibre and glass fibre. Most DLG models use aileron, rudder and elevator control, with the ailerons serving as camber changing flaps for different modes of flight and also as airbrakes for landing. A modern DLG model weighs approximately 9 or 10 ounces grams and has sophisticated aerodynamics. Many pilots use programmable radio transmitters with full mixing and flight mode capabilities in order to optimise performance and set up the models for flight as near perfectly as possible. Although the roots of RC hand-launched gliders can be traced back to the late s, F3K is a relatively new aeromodelling discipline, becoming officially recognised by the FAI international body responsible for aeromodelling competition disciplines in F3K gliders are limited to a 1. F3K competitions consist of a group of fliers completing a number of pre-defined flight tasks involving launching, flying and landing the model in a number of timed durations. Just the hand launch and thermal currents of rising air thermals are used to sustain the flight. Since thermals cannot be seen, F3K pilots rely on ground signs such as surface wind velocity, temperature and direction; signs such as circling birds, bugs, or rising particulates; and changes of direction or attitude of the glider due to the thermal itself. The pilot uses these signs to resolve the approximate location of the thermal. For F3K tasks where longer durations are needed, positioning and maintaining the model glider in thermal rising air is paramount. Contest strategy includes determining the location of thermals before the pilot launches. Discus launched gliders can be made from a combination of foam, balsa, carbon fiber, kevlar, and other materials. From Wikipedia, the free encyclopedia. This article does not cite any sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Categories : Radio-controlled aircraft. Hidden categories: Articles lacking sources from March All articles lacking sources. Namespaces Article Talk. Views Read Edit View history. Languages Deutsch Edit links. By using this site, you agree to the Terms of Use and Privacy Policy.

Home Built Discus Launch Glider - mini-q



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