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JShumate

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  1. Scheduled to be in the upcoming September issue of MAN, we just posted on our Premium members website and complete downloadable article covering all of the amazing super scale action from this year’s Top Gun Scale Invitational. To see and download this sneak peak, and much more exclusive content Click Here to subscribe to our Premium Members Only website. The post New for Preminum Members — Exclusive Top Gun Sneak Peak appeared first on Model Airplane News. View the full article
  2. From HobbyKing: Exceed 100mph with the ultra-fast Sidewinder. Designed for fast FPV flight, the aircraft arrives fully-built with pre-installed electronics and navigational lights. Choose between multiple colored decals, including red, yellow, green and silver. Each of these colors has a matching tail light to help personalize your wing. The aircraft features separate compartments for the motor and ESC to help reduce electronic interference. Made of EPO foam, the one-piece construction and full-length carbon rods inside the wing provide a fast stable platform. The Durafly Sidewinder has been designed with an in-built dummy antenna to balance out the aircraft once your working antenna is attached. The sidewinder includes differently sized landing skids which can be swapped out depending on the landing terrain. The Sidewinder is a real speed machine for those willing to chase the thrill. Features: Fast racing-wing aircraft Designed for FPV Choose between multiple coloured decals and tail lights Separate motor and ESC compartments for no electronic interference Full length carbon rods through the wing for stability One-piece EPO foam construction for strength In-built dummy antenna to balance out the aircraft Navigational lights Specs: Wingspan: 1100mm (43.3″) Length: 480mm Weight: 580g (without battery and FPV equipment) Requires: ESC: Aerostar 50A Motor: Aerostar 3536-2000KV Brushless Outrunner Servo’s: 2 x 9g with extension leads #9499000141-0 – $89.65 Visit HobbyKing.com See more posts about HobbyKing The post Durafly Sidewinder FPV Racing Wing 1100mm [VIDEO] appeared first on Model Airplane News. View the full article
  3. From Tower Hobbies: With its 100” span wing, the Vista Grande EP sailplane handles well in wind and responds gently to control input. Bold stripes on the wing bottom aid in following orientation. Electric power means no hi-start, tow plane, or large launch area are needed. You can climb to soaring altitude quickly, coast on the thermals, come down, and do it all again — without recharging. Features include a factory-covered all-wood airframe; 3-piece, bolt-on wing; factory-hinged rudder and elevator; and center wing section spoiler. A brushless motor, ESC, and folding propeller are all included. Visit TowerHobbies.com See more posts about Tower Hobbies The post Tower Hobbies Vista Grande EP Sailplane AR [VIDEO] appeared first on Model Airplane News. View the full article
  4. JShumate

    Indoor RC Antonov AN-225

    When it comes to indoor RC, the last thing you would expect is the giant Antonov AN-255 cargo plane. Well, this impressive AN-225 model, is a very scale “micro” version that easily flies in indoor venues! Made of Depron, the model is powered by six Hobbico micro ducted-fan units with two, 2S 1000mAh batteries. Built and piloted by Daniel Hör, it’s seen here flying at the Intermodellbau Fair in Dortmund, Germany. We can only hope Daniel will build a micro scale Buran spaceplane so that his Antonov can carry to altitude! The post Indoor RC Antonov AN-225 appeared first on Model Airplane News. View the full article
  5. If you have ever been to an RC airshow, then you’ve seen aerobatic airplanes using smoke during their flight routines. When used properly, smoke systems can add a great deal to your flight presentation. The uniqueness it gives to specific segments of your flight routine will increase their appeal and pizzazz to both the spectators and your fellow pilots alike. MAN contributor and expert aerobatic pilot and national champion John Glezellis give us an up-close look at installing a smoke system properly for consistent performance. Decisions, Decisions Today, many commercially-available smoke systems use a separate battery source to control the smoke pump unit. I recommend these types as they don’t draw current from your receiver battery, and the volume of smoke that is produced can be easily controlled via your computer radio. While I have not used all of the smoke systems that are commercially available, I have tested and have successfully used several of them over the years. My personal favorites include the SmartSmoker from Tajera Microsystems Engineering, Inc. (TMJ), and the Skywriter from Sullivan shown above. Other popular manufacturers include 3W and Slimline, and while I have not personally used these pumps, I know they work equally as well. Pumpless Smoke Another popular smoke system is an older product but it still works great and doesn’t have a electrically driven pump. It is the B&B Specialties Smoke Pumper. This high volume smoke system contains the Pump, BB Control Valve, hose and all fittings for easy installation. The Super Smoke Pumper does not include the smoke generating muffler or smoke fuel tank. The heart of the BB Smoke System is, of course, the pumper which operates on engine crankcase pulsing pressure. No need to worry about a ruptured smoke fuel tank filling the inside of the fuselage with fluid. The smoke fuel tank is not pressurized. It is a surefire way of moving fluid from the smoke tank to your smoke generating muffler. Simple and effective. Installation If you are using a smoke pump such as the SmartSmoker or the Skywriter, you will need to gather the following materials: Smoke Pump Unit Check Valve Battery pack (4.8 – 6V) Fuel Tank for Smoke Fluid Fuel filler Dot Zip Ties Gasoline-proof fuel line Neoprene tubing T-Fitting Some pilots will be using the same aerobatic airplane for IMAC (sequence competition) as they use for their freestyle competition. Since smoke isn’t needed for IMAC routines, making a removable tray to support the smoke tank, pump, and pump battery, is a simple and quick way to save a pound or more in weight. If your model is a tad on the heavy side, give this idea some thought. Start by installing the smoke tank. If there’s room, I always prefer to mount my fuel tank and smoke tank together in an area very close to the airplane’s Center of Gravity. This way as fuel and smoke fluid is depleted the model’s CG will remain unchanged throughout the flight. If your fuel tank and smoke tank are located in the front of the model, you’ll find that your model is nose heavy at the start of the flight and as the flight progresses, you’ll have to change elevator trim as the model becomes more and more tail heavy. I run three lines out of the smoke tank. One line simply vents to the outside of the aircraft on the bottom of the model, the second attaches to the smoke pump (the internal line is attached to the clunk), and a third line that is used for filling the tank and is attached to a fuel dot. I also prefer to mount my pump close to the smoke tank, and close to the tank’s height within the airframe. I also make the smoke battery removable. I use a 2000mAh NiMH battery, but with such a small current draw, a 500mAh battery could be used and will provide about 30-minutes of smoke-on time. With a smoke pump like that from TME and Sullivan, you will notice that two servo leads come out of the pump. One is connected to the battery and the second lead plugs into a spare channel port in the receiver. Twin Cylinder Setup While using a twin-cylinder engine with two mufflers, Like this Zenoah GT 80 and Slimline Smoke Mufflers shown above, the smoke system needs a T-fitting to supply fluid to both mufflers. I attach Neoprene line from the “T” Fitting to each exhaust header (via a threaded pressure tap,) that I further secure to the header using JB Weld. I use gasoline tubing from the pump to a “T” fitting and Neoprene line after the T-fitting. Neoprene withstands heat much better than standard gasoline line. A check valve helps prevent muffler pressure pushing fluid backwards through the smoke pump during periods where the smoke system is off. The check valve is located between the tank and the T-fitting. Smoke Pump Programming If you feel that simply assigning your smoke pump to operate on a switch at one standard speed is acceptable, think again! When smoke is injected into the model’s muffler or exhaust system, it is critical to change the volume of fluid being pumped. If too much oil is injected into the muffler while the throttle is at a low setting, it can kill the engine. Not good for a maneuver like a spin with smoke on. Above, Now, it is important to utilize a Curve Mix to ensure that the smoke pump is off when the throttle stick is at idle, and the pump gradually increases in speed as the throttle is advanced. In addition to using a Mix, you can also decrease the smoke pump rate by using your ATV screen. Here, we have decreased the speed, when activated, to 50%. Find the proper balance by using both the Mix, and the ATV screen, to find the optimal rate. For my airplanes, I plug the smoke pump into a spare channel and assign it to a switch. For example, let’s say that I have Aux 4 as a free port on my receiver. In this case, I’ll assign Aux 4 to the Mix Switch on my transmitter. Then, I will utilize one of the programmable mixes to mix Throttle (the master channel) to Aux 4 (the slave channel). I then assign this mix to the switch (Gear Switch), and program different points on my mix graph (using a mix curve,) for different pump speeds to operate at in relation to the throttle setting. For example, at idle, I want the pump to barely operate so that little to no smoke fluid is pumped into the exhaust. As I increase the throttle, the smoke pump increases the flow. Using both the Adjustable Travel Volume screen and the Mix function can change the rate at which the pump operates at its fullest potential. Remember, though, the curve mix is critical! When programming the smoke volume, you can make most adjustments on the ground. For maximum power, though, let your engine idle for a minute or two on the ground. Then, activate your smoke pump at or close to full power. If you see a large burst of smoke initially followed by a smaller amount of smoke, decrease your smoke rate as too much oil is being used. Making fine adjustments like this will ensure that you have a reliable and impressive amount of smoke during your flights. Fine tuning the pump will also maximize your “Smoke On” time. Enhancing Your Flight If you simply use your smoke during the entire flight, it isn’t nearly as impressive as if you use it only to highlight specific maneuvers. For example, if you want to perform a knife-edge pass, turn the smoke on before you roll the model to knife-edge, and then shut it off after you complete the maneuver and you roll back to upright level flight. This is much more entertaining, adds a unique visual dimension, and optimizes your smoke fluid usage. Final Thoughts Installing and properly using a smoke system with your aerobatic plane is both quick and easy to accomplish. Laying down a long, thick, long lasting smoke trail is very satisfying and can be used for both an aerobatic routine, or with WW1 and WW2 warbirds. It’s all about having fun and impressing your flying buddies. Until Next Time, Smoke on and fly hard! Smoke Fluid Over the years, I have had great success by using Super Dri Aviation Smoke Oil by MDW Aviation. This fluid is designed for both full scale and model airplanes alike, and it burns very well. Also it is safe for the environment and is bio-degradable. Smoke fluid is also available from Robart Mfg., and their “Liquid Sky” smoke fluid is white in color, long hanging and a unique and pleasing Root Beer scent. Pilots everywhere are boasting about great success with Robart’s Liquid Sky and it is popular because it does not attack foam. It’s also available in larger containers for the really active show pilot. Take a visit to your local hobby shop to order, or check them both out online at: robart.com. Above, Mitch Epstein’s 2010 Top Gun entry was a sight to behold. Not only was the airplane beautifully built, but it smoked flawlessly throughout the competition. The post RC Smoke Systems Explained– Tips for long hang time appeared first on Model Airplane News. View the full article
  6. JShumate

    Perfect a Positive Snap Roll

    At the start of their flying careers, some pilots can only perform certain maneuvers from a particular direction. The proficient pilot, though, must be able to execute figures in all directions. Being able to apply corrective inputs in all directions, no matter what orientation the aircraft is in, is a critical skill. The positive snap roll in opposite directions combines two maneuvers, performed in opposite directions, within one figure. BEFORE WE BEGIN If you have an aerobat with large control surfaces and you want to perform precise figures with the utmost consistency, you must take advantage of dual, or triple, flight rates. It is difficult to fly precision maneuvers when there’s too much control surface deflection. I prefer to use a three-position flight mode where all rates for all control surfaces are found on a single switch. One rate is for rolling figures and general precision aerobatic maneuvers, the second rate is for snap rolls and spins, and the third is typically used for 3D flight. Given the fact that the maneuver of the month is not a 3D maneuver, maximum rates are not required. For this figure, a maximum of 35 degrees of control-surface deflection will be required for aileron, 20 degrees for elevator, and 35 degrees for rudder. On this rate, a great starting point for exponential is about 40% (this value will either be positive or negative, depending on the radio manufacturer). Adding exponential will soften how the airplane responds to certain control inputs around neutral, but you can achieve maximum travel by moving the control stick the maximum amount. While different pilots typically prefer different aircraft setups, the professional pilot will agree that time, patience, and proper flight techniques are required to find the best balance of exponential and control-surface deflection. OVERVIEW For the first few attempts, always perform this figure parallel to the runway, into the wind, and at a distance of about 300 feet for a 60-inch-span aircraft. A generous altitude will also help if you lose orientation, so you can always abort the maneuver by neutralizing the control sticks, seeing the orientation of the model, and applying corrective roll and pitch inputs to orient the aircraft in upright level flight. Equally important, keep a fair amount of distance between you and the aircraft; if you fly too close to yourself, you won’t be able to see the entire figure and apply corrective inputs. IF THE MANEUVER IS PERFORMED TOO SLOWLY, THE AIRCRAFT WILL TUMBLE THROUGH THE SNAP ROLL, AND IT WILL BE DIFFICULT TO CONTROL ALTITUDE AND HEADING. The figure of the month is centered on the pilot, which means that the halfway point for the maneuver is the brief line segment between the two snap rolls. With that said, the first snap roll will need to occur just seconds before the aircraft approaches the pilot so that the snap roll is complete and so that the second snap roll can occur right after passing the pilot. The moment that you will need to initiate the snap roll will vary depending on the rotation rate of the aircraft. Typical snap-roll rates, however, will require you to initiate the first snap roll about three seconds before the airplane approaches you. Apply up-elevator to initiate the maneuver and stall the aircraft. Then, apply left aileron and left rudder. Release inputs as the first rotation is complete; at that point, the airplane should be directly in front of you. Once complete, it is time to perform another snap roll but in the opposite direction. Again, apply up-elevator input but, this time, followed by right aileron and right rudder input. Let’s simplify matters, and divide this exciting figure into four separate steps. STEP 1. For the first attempt, begin by lining up the aircraft to the runway traveling level, upright, and into the wind at a fairly high altitude. Because the example illustration is flown from left to right, orient the model and apply 75% throttle. As the aircraft approaches you, initiate the snap roll by applying up-elevator to initiate the maneuver and stall the aircraft. Then apply left aileron and left rudder. STEP 2. Keep the rotation rate the same throughout the snap roll. Keep control inputs constant until the end of the maneuver and, as the aircraft approaches level, release the control inputs. At this point, the model should be placed directly in front of you. Releasing control inputs for different control surfaces at different times will result in a rotation rate that is not consistent throughout the entire figure, which would result in a downgrade in competition. STEP 3. Ensure that the speed of the aircraft is adequate to perform the second snap roll. If the first maneuver resulted in a fairly substantial speed difference, apply throttle as needed and begin the second snap roll. After the aircraft completes the first snap roll, execute a snap roll in the opposite direction. As with the first snap roll, apply up-elevator to stall the model. Then follow with right aileron and rudder. STEP 4. Again, control inputs should be held until the rotation is complete. Throttle use is important as it controls the airspeed of the aircraft. If the maneuver is performed too slowly, the aircraft will tumble through the snap roll, and it will be difficult to control altitude and heading. Once the rotation is complete, prepare to align the model and give this maneuver another try. FINAL THOUGHTS Some pilots prefer to roll only one direction. Being proficient in performing a snap roll (or a standard roll) in both directions, however, not only is mandatory for the competition aerobatic scene but also will make you a better pilot. With time, maneuvers like the positive snap roll in opposite directions will become second nature. Remember, while airframes all differ to some degree, programming concepts remain the same. Always take advantage of the various capabilities that your radio system offers so that you can tune the aircraft to your personal preferences. Above all else, though, remember to have fun! The post Perfect a Positive Snap Roll appeared first on Model Airplane News. View the full article
  7. JShumate

    One of a Kind Soviet Bomber

    Built and flown by Rainer Mattle, this monster 99-pound model is powered by six 15cc ASP gas engines and an electric pusher motor. Built up from wood, the 16-foot-span plane is also equipped with 16 servos, brakes, and steerable nose wheels and can be disassembled into six modules for easier transport. Kalinin K-7 might be just what you’re looking for! With a wingspan close to that of a B-52, only one full-size K-7 was ever built, and it crashed after seven flights due to a tail boom structural failure, so it’s doubtful you’ll run into another RC version at the next giant-scale fly-in. Thanks to RCHeliJet for taking a video of this monster model at the recent Hausen Am Albis event in Switzerland. The post One of a Kind Soviet Bomber appeared first on Model Airplane News. View the full article
  8. From Microaces: Using the NEW Microaces All-in-One (AIO) 5 Channel receiver plus one Aileron Servo, this wonderful new kit from Microaces can be flown with ailerons, rudder, elevator and throttle. Using the standard push rod control for rudder & elevator plus an extra linear servo coupled to a closed loop pull-pull mechanism for aileron control, this aircraft can be flown like the real thing: More aerobatic, more scale realism (no dihedral in the wings on this model) and more captivating than ever. Flown by Leutnant Wilhelm Leusch, Jasta 19, 1918 The model represents the Fokker D.VII flown by Wilhelm Leusch, distinguished by the image of a white dragon on both sides of the fuselage. Leusch was made commander of Jasta 19 in October 1918 and scored 5 victories. Royal Prussian Jagdstaffel 19 was formed on 25th October 1916, and was designated a ‘Hunting Group’. The new Jasta drew first blood on 6 April the following year. On 2 February 1918, Jasta 19 was detailed into Jagdgeschwader II along with Jasta 12, Jasta 13, and Jasta 15. The unit would score 92 verified aerial victories, including ten wins over enemy observation balloons. History in the Making Our love of aviation history ensures that the aircraft we choose to reproduce as kits not only look fantastic on static display and in the air, but they also carry a depth of history that can be explored. Although introduced in the later stages of WWI, the Fokker D.VII was a seriously formidable combat aircraft. Designed through the lessons of its predecessors it was comparitively stable, fast and maneuverable and was quickly liked by the pilots who flew it. Electronics Packs for the 4 Channel Fokker D.VII Use the NEW Microaces AIO 5 Channel receiver plus a single linear servo for aileron control. NOTE: You can select to purchase the kit with the NEW flight pack on this product page. This includes the receiver, aileron servo, motor/gearbox and prop + adapter. Specification: Airframe: Scale Controls: Ailerons, Rudder, Elevator, Throttle Length: 295mm / 11.5″ Wingspan: 368mm / 14.5″ Wing Area: 3.95 sq dm / 61 sq in. Flying Weight.: 37 – 41g/1.3 – 1.5oz Wing Load: ~9.5 g/sq.dm / 3.1 oz/sq.ft. Recommended Receiver: Microaces AIO 5 Channel Receiver (Spektrum or Futaba) Rec. Motor / G.Box: Microaces Short Shaft Motor/Gearbox Rec. Prop: GWS 4530 Skill Level – Build: Intermediate Skill Level – Pilot: Intermediate Tools required: Scalpel, 180 Grit sandpaper or stick, straight edge, tweezers Rec. Adhesive: UHU por / Foam safe CA / Aliphatic glue Kit Contents: SHEET PARTS: 2mm laser cut Depron Airframe sheet 1mm printed & laser cut Depron fuselage sheet 1mm printed & laser cut Depron flight surfaces sheet 200 micron printed & laser cut polypropylene sheet polyester sticker sheet 0.8mm laser cut plywood parts LOOSE PARTS: 3D printed aileron control boss x 2 Two 30mm Ø neoprene rubber tires Six 3mm Ø noedymium magnets 100mm x 6mm Ø plastic tube 1mm x 0.4mm carbon fibre strip 1mm Ø carbon fibre rod pre-shaped piano wire elevator & rudder control rods 1500mm of control/rigging wire Visit Microaces.MyShopify.com See more posts about Microaces The post Microaces Aero Fokker D.VII ‘Jasta 19’ Kit appeared first on Model Airplane News. View the full article
  9. From LaTrax: Alias is a clean-sheet design that focuses on the performance and design elements that make flying, and even learning to fly, fun. The first mission objective was durability. Alias is built around a unique molded-composite frame that is combined with clever high-tech construction to make it extremely light and resilient. Your flying fun goes on and on without worrying about breakage from crash damage. The next mission was performance. Fun always comes from having more power so Alias’ motors have 50% more power than standard motors, and when combined with the lightweight design and high-tech materials, Alias is lightning quick and ultra-responsive. A completely new flight control system was developed that provides unmatched 6-axis stability that works in the background without impacting performance and speed. It acts like a virtual spring that snaps Alias back to level controlled flight no matter what situation you find yourself in. New pilots can fly faster and perform aerobatic maneuvers sooner than they ever thought possible with Alias’ unique flight control system. Visit LaTrax.com See more posts about LaTrax The post Experience The Fun Of Flight With The LaTrax Alias [VIDEO] appeared first on Model Airplane News. View the full article
  10. JShumate

    Esprit HD & 3D Motors

    From Esprit Tech: Introducing the new Esprit series motors! Offered in HD and 3D Versions. Designed with a Hardened steel shaft, 30mm oversize bearing, bolt-on prop adapter, integrated cooling fan and pre-installed Jeti telemetry sensors, Esprit Motors represent the highest level of quality. Esprit 85cc E105/10-140 3D HD Outrunner Brushless Motor w/Telemetry Price: $590.00 Esprit 85cc E105/10-160 3D HD Outrunner Brushless Motor w/Telemetry Price: $590.00 Esprit 120cc E105/20-135 3D HD Outrunner Brushless Motor w/Telemetry Price: $690.00 Esprit 120cc E105/20-160 3D HD Outrunner Brushless Motor w/Telemetry Price: $690.00 Esprit 120cc E105/20-185 3D HD Outrunner Brushless Motor w/Telemetry Price: $690.00 Esprit 200cc E105/30-105 3D HD Outrunner Brushless Motor w/Telemetry Price: $790.00 Esprit 200cc E105/30-125 3D HD Outrunner Brushless Motor w/Telemetry Price: $790.00 Visit EspritModel.com See more posts about Esprit Tech The post Esprit HD & 3D Motors appeared first on Model Airplane News. View the full article
  11. From Esprit Tech: One of the most impressive European made sailplanes that we have ever seen. The brand new competition F5J/ALES Element 3.5E flies as good as it looks. Gentle, smooth, and very long flights are the standards for this beauty. The careful use of composites with competition balsa, creates a good light structure that will hold its shape for a long time. The synergy of low weight and strong structure is very unusual in a production sailplane and can only be achieved with careful attention to design and construction. The entire model is constructed using free-flight techniques. Top Model uses the latest construction techniques such as CNC milling and laser cutting. The wings as well as horizontal and vertical tail parts are all classic balsa with Carbon Fiber main spare and leading edge design. The fuselage is gel-coated fiberglass with white finish and CF canopy. Whole model is covered with Ultracote. All control surfaces are hinged with adhesive tape. This fully built sailplane needs only basic assembly and motor/radio installation. The 3-piece wing and full flying stabilizer are each easily removable for transport and storage. Each part is carefully hand-crafted with meticulous attention to detail. Value is simply incredible. Special Features: Control Surfaces: Ailerons, Elevator, Rudder and Flaps Tight covering, with all seams hand-sealed Elegant gel-coated white fiberglass fuselage w/CF canopy Three-pieces wing with ailerons and oversized flaps Ready-built Balsa/Carbon Fiber 3-piece wing design Ultracote covered wings and tail parts Includes all necessary hardware Virtually perfect, extremely clean and well made Specs: Airfoil: AG mod. Wing area: 1200 sq.in. (77.5 sg.dm) Wing loading: 9-9.5 oz/sq.ft. (25.5-27 g/sg.dm) Empty weight: 46 oz. (1300g) Suggested Equipment (Sport): (1) AXi Cyclone 46/760 (1) Jeti Advance 70 Pro SB ESC (1) 3300 3S battery (4) HS-85MG servo (ailerons, flaps) (2) MKS Ds6100 servo (rudder, elevator) (4) Servo frame Hitec HS-85BB/85MG/5085MG (2) Servo frame MKS Ds6100 (1) BB 40/5/8mm folding spinner (1) Aeronaut 15×8 folding propeller (2) Wing retainer system/Wing lock mini (1) Deans connector (2) MPX Connector set dual servos (2) 48″ Servo extension (2) 36″ Servo extension (6) 6″ Servo extension (1) Velcro strap for folding propeller (1) Building Services (Sailplane Firewall Installation) (1) Wing & Tail Bag Set TopModel Suggested Equipment (Power): (1) Race 2014/5100 6.7:1 (1) Jeti Spin Pro 66 ESC (1) 2700 3S battery (4) HS-5085MG servo (ailerons, flaps) (2) MKS Ds6100 servo (rudder, elevator) (4) Servo frame Hitec HS-85BB/85MG/5085MG (2) Servo frame MKS Ds6100 (1) BB 40/6/8mm folding spinner (1) Aeronaut 16×8 folding propeller Visit EspritModel.com See more posts about Esprit Tech The post Element 3.5E F5J/ALES Electric Sailplane (ARF) appeared first on Model Airplane News. View the full article
  12. JShumate

    Sneak Preview: Top Gun Coverage

    Premium members get our in-depth, 27-page feature on the 30th annual Top Gun Scale Invitational before the September issue hits mailboxes and newsstands. With the top 10 winners from each class as well as up-close scale details and a look at Top Gun through the years, this is event coverage you won’t want to miss! NOT A MEMBER YET? JOIN TODAY The post Sneak Preview: Top Gun Coverage appeared first on Model Airplane News. View the full article
  13. We’ve just posted an exclusive article on our Premium Member’s site by John Kauk, Demystifying Soldering Connectors. Setting up a new electric-powered model, and sometimes maintaining an older one, often requires installing new motor or battery connectors. Previously I discussed some of the different types of connectors available, so this time we’ll cover installing them. The various bullet connectors, such as Horizon’s EC and Castle Creations’ plugs, have a small cup on the end into which the wire is soldered. Blade or flat-plate connectors, like the Deans Ultra and Hobbico’s Star plugs, require soldering, too, but require a slightly different technique. Finally, the Anderson Powerpoles I’ve used for many years can either be soldered or, better yet, crimped onto the leads. Tools for soldering connectors arranged around a ProgressiveRC Solder Station include (clockwise from top) wire cutters and strippers, tweezers, a 40-watt Weller iron, and a variety of hemostats and clamps. To read the entire article and gain access to more exclusive online content, Click Here to subscribe and become a premium member. The post New for Premium Members — Demystifying Soldering appeared first on Model Airplane News. View the full article
  14. If you are one of many modelers who acquired an ARF-type model of an American airplane, the chance that its star-and-bar markings is correct is about one in 10. It’s sad but true. Among models built by usually careful modelers and displayed at meets, like the Toledo Show and Joe Nall, the situation is somewhat better, but incorrect markings still outnumber the correct ones. What is it about the star-and-bar marking that makes it so difficult to get right and so often to be done wrong? Judging by the wide variation of ways to goof it up, there are a number of reasons. To illustrate this point, at a recent Top Gun event, one of the static judges, Rich Uravitch, and I looked in amused amazement at one particular model where the star and bar appeared in six places and each one was wrong—and each in a different way. If we take a look at a correct marking and analyze its construction, we can see how easy it is to get wrong. In doing this analysis, it must be noted that, like anything military, the markings follow a strict formula, with variations from it being virtually nonexistent. On the positive side, the formula is extremely simple because all the dimensions are based on one measurement only: the radius of the circle enclosing the star. So let’s start. STEP 1 Draw a circle with a known radius. This dimension is referred to as “R.” STEP 2 Inside the circle, draw a regular five-point star. (Note: The top point faces up on the side of the fuselage and forward on the wings.) STEP 3 From the shoulders of the star, draw lines outward whose lengths are the same as R. STEP 4 From the ends of these lines, draw vertical lines downward whose lengths are ½ of R. (Note: This is where many mistakes are made.) From the ends of the vertical lines, draw the bottom horizontal lines back to the circle. STEP 5 Around the entire figure, draw an outline whose width is equal to 1/8 R. If the marking is the postwar type, which includes the red stripe inside the white bar sections, the width of the stripe is equal to ⅙ R, and it is centered on the white bar. Note that the red stripe is slightly wider than the blue outline. Skyraiders with correct post-WW II markings with the red stripe. Color Specs After learning how the U.S. aircraft insignia should look, it is also important to get the colors right. The FS (Federal Standard) 595a color reference guide identifies the colors to use as follows: Insignia Blue: 35044 if matte and 15044 if glossy Insignia Red: World War II: 30109; pre- and postwar: 31136 if matte and 11136 if glossy Insignia White: 37875 if matte and 17875 if glossy Special note: During World War II, Insignia White was often applied as a mix of 13 parts white to one part black. This was due to straight white being too bright and conflicting with the need for camouflage. Incorrect Obviously, the bars here are too long. Correct This is how it should be on a Grumman Cougar. Examples of Wrong Markings BAR TOO DEEP Note that the correct figure is not symmetrical about the horizontal centerline (see Step 4). This is the most common error and probably accounts for most of the mistakes because it is wrongly assumed that the figure is symmetrical. INCORRECT BARS Bars do not touch the star but, instead, follow the overall outline. Other mistakes can include an outline that’s too thick or, more often, too thin (or worse: varying the width!) as well as variations in the length of the bars. As indicated earlier, there are a host of ways to goof up the star and bar but only one way to have it right. FINAL WORD It’s easy to correct a mismarked model simply by putting a correct marking over an incorrect one. This might not be worth the trouble for a foamie, but it will help your score on a competition-scale entry. One interesting side note to this discussion is that the International Plastic Modellers’ Society (the plastic-kit modelers’ organization) never got it wrong. We surely can’t let plastic modelers outshine us! BY DAVE PLATT The post Painting Proper Scale Markings — Get the Stars-and-Bars right appeared first on Model Airplane News. View the full article
  15. JShumate

    Slow Rolls — Wow the Crowd

    Want to spice up this weekend’s flying? The slow roll is a challenging classic maneuver that’s actually much harder to perform than it looks. With a little practice, though, you’ll be ready to put on a show! Enter straight and level, full-power roll left Slowly add right rudder Maximum right rudder Smoothly release right rudder and begin to add down-elevator Maximum down-elevator Slowly release down-elevator and add left rudder Maximum left rudder Smoothly release left rudder and add up-elevator Slight up-elevator, exit straight and level PROPERLY PERFORMED, THE SLOW ROLL IS A VERY GRACEFUL MANEUVER THAT WILL IMPRESS YOUR PEERS The slow roll is deceptively simple and is rarely seen at flying fields. A horizon-to-horizon slow roll requires careful timing of the aileron, rudder and elevator; this requires finesse. The control inputs are similar to those of the four-point roll with the exception of the aileron: it remains constant throughout the maneuver. Although I found it easier to learn the four-point roll first, some pilots think the slow roll should be mastered first. The first step is to determine your plane’s roll rate. The roll should take at least five seconds. Get the plane up high, and enter a 30-degree climb at full power. Apply aileron in either direction to begin the roll, and apply down-elevator during the inverted segment. You will need to add more down-elevator than you would for a standard roll because the plane will spend more time inverted. Adjust the aileron input until you achieve the five-second target, and note how much aileron was required. For consistency, some pilots use dual rates to set the required throw. Now add the rudder and elevator inputs for the knife-edge positions. For a left slow roll, smoothly add right rudder as the plane approaches the first knife-edge position. Ease off the rudder input as the plane continues past knife-edge, and add down-elevator as it approaches inverted. Once past inverted, release the down-elevator, and add left rudder for the last knife-edge portion. Smoothly release the left rudder when past the knife-edge, and recover to straight and level flight. Use the same escape route as the four-point roll if things start to go awry; continue to roll back to straight and level. Properly performed, the slow roll is a very graceful maneuver that will impress your peers. These are the building blocks for many of the maneuvers that are flown in pattern and precision aerobatic contests. It takes a lot of discipline to perfect them, but they add purpose to your flying. If you seek a challenge, and boring holes in the sky is becoming old hat, give these maneuvers a try. The only way to improve is practice, practice and more practice! The post Slow Rolls — Wow the Crowd appeared first on Model Airplane News. View the full article
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