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    Sunday

    E-Flite Blade mSR


    Description of the helicopter 
    This helicopter is the next after soosnikov E-flite Blade mCX and mCX2 or the like. Compared with soosnikami mSR (Messer), just a bullet. He brings more fun, but in return requires great care and attention. As well as younger brothers, he holds a great blow. MCP can fly outdoors in mild breeze in the set of double spending. Competition among brothers may reach only mCX2 and Nine Eagles SOLO PRO (all kinds of its clones-copies).
    From all the other distinguished Messer and its rich furnishings, version RTF (EFLH3000), is more suitable for beginners: the very helicopter 2akka, battery charger for 4 batteries, 4-channel format DSM 2.4GHz transmitter and as a bonus a small repair kit (though it looks like equipment sneer). 

    There is still no complete set of the transmitter version of BNF (EFLH3080), who already have mCX or mCX2 for experienced - BNF Aircraft Only (EFLH3050), who have a serious transmitter, such as Spektrum dx6i, dx7, charger, and Akka. It's a pity there is not just an aluminum briefcase, like Nine Eagles. Many owners of the Nine Eagles will note that SOLO PRO has the same characteristics, is almost the same quality that are less detail, as the helicopter itself, compared with Blade mSR, DSM protocol is not particularly important if the equipment you have not Spectrum. 



    The most frequently breaking details.
    Statistics of failures, number and replacement options.

    Despite the fact that the helicopter is made of lightweight, impact-resistant plastic (frame, skiing and konope or hood), it has several weaknesses. They can be specially laid designers to reduce the damage or to make money on spare parts. But I think for one and other.
    List the main trouble spots. In parentheses indicate the number of items in the catalog of the manufacturer.
    First, as a rule that is broken - it's skiing (EFLH3004)

    Behind them are holders of the blades (EFLH3014)

    The next thing to pay attention - it's tail boom with a motor (EFLH3002)

    Yes in the old parties, flew cover the rear motor. To avoid this you can put it on the glue "Titan" (see below) or buy a clip from Microheli (MH-MSR025MM)

    You should also pay attention to the tail rotor (EFLH3017) and the main rotor blades (EFLH3016). Main rotor blades are more tenacious than the tail rotor.

    It would be nice to have in stock frame (EFLH3005).

    More can be put in the ISP main rotor motor (EFLH3003).

    Well, just in case Canopy siniyu (EFLH3018) or red (EFLH3019).

    The above mentioned details should be left necessarily!
    Once again probegust on all details that need to be always.

    Name
    EFLH3005 - E-Flite Main Frame Set for Blade mSR
    EFLH3004 - E-Flite Landing Skid and Battery Mount for Blade mSR
    EFLH3019 - E-Flite Canopy & Fin (Red) for Blade mSR
    EFLH3002 - E-Flite Tail Boom Assembly w / Tail Motor for Blade mSR
    EFLH3003 - E-Flite Coreless Main Motor for Blade mSR
    EFLH3014 - E-Flite Main Blade Grips with / Hardware for Blade mSR
    EFLH3016 - E-Flite Main Rotor Blade Set w / Hardware for Blade mSR
    EFLH3017 - E-Flite Tail Rotor (1) for Blade mSR

    Very rarely, but still get into trouble with the control unit (EFLH3001), plastic swashplate (EFLH3009) and servo (EFLH1066).

    Broken parts should be replaced by new ones, but if for some reason there is no substitute, it can be repaired and on its own. Below you will learn how poor healing.

    Let's go further ...
    I want to start with the rear engine cover, because this is one of the frequent sores after more beautiful and even "smooth" landing.
    Occurs - is due to the fact that the motor caps are very small hooks and when the motor is running, the shaft rests against it. Consequence - the cover came off. Also, such trouble can happen when you put the screw back. Necessarily need to fix the shaft or to hold the lid.

    And now, as it is treated. There are several ways to fix this problem.
    The first is the easiest - it is accurate, we can mini screwdriver, apply an even layer on the metal itself dvizhek with wires. The effect of different I believe - combination of the elasticity of the glue (do not crumble) and its strength will not allow the cover to fall off. A transparent adhesive completely invisible, as the farm, it seems that this chip factory.
    The main advantage of titanium is that it can be accurately, albeit difficult, to tear and to make repairs again, that it would be impossible after the super glue.
    Vitality rear motor gives even a little sawn along the length of the rotor (about a millimeter). To randomly blow on it, it could not push into the engine, because it rested exactly in the lid.

    The following method is more complex and demanding attention and accuracy!
    Lies in the fact that it is necessary to close the shrinking of the tail engine. Done when the lid is still in place. Look not ignite anything!

    Yet there is a way - fine tuning.
    Company Mikroheli ( http://www.microheli.com/ ) released clip, Derlin Tail Motor Mount (MH-MSR025MM), the rear motor. The price of issue - $ 3.99USD.
    New versions of Blade to completely eliminate this problem - did a reinforced rear engine cover.

    Go to the next problematic place - the chassis. As the rules for beginners, and the pros, but less often, they fail after an unsuccessful landing or impact. In principle, well, it breaks down, because with the quenched part of the energy is not transferred to the more expensive and important part - the control unit.
    Let's look at options for repair, but again, that any fix is a last resort, when, for whatever reason you have no spare parts. Because it will be easier and less weight the more the helicopter will be krasheustoychiv.
    The pictures show particular trouble spots.
    Place to insert the battery is particularly prone damage if inserted battery is not standard size. Be careful when choosing a battery!

    The way to avoid breakage of skis. The chassis is afraid of the front shocks!
    Need to wear elastic (light) on the skis in place of "a" with one and other. Will shock, when hit skis just disperse and return to his position.
    So trying to treat.
    Method one. Similar to the repair of motor caps. Namely, put the broken part of a drop of glue "Titan". This must be done symmetrically for something to balance the helicopter drop of glue should be about the same weight. This method is well suited, and adhesive for skiing and for sticking pins that are connected to the chassis frame.

    The second method. Again referring to repair rear motor, you can put on shrink. Method does not purport to be the best, he just simply and quickly, which takes 15 minutes. Holds me back is not as thread and tsiakrinom, with a slight elasticity (this issue). We used the shrinking diameter of 2mm (it says), 3.5mm - great, do not compress. For shrinkage need to use a hairdryer, because them the least you can cause additional damage from heat than lighter.

    The third way (photos available). Apply for a broken part tsiakrin and shook his silk thread. Get a very strong connection that can handle needle files. It is also desirable to keep a balance. But this way there is a minus. With beautiful place may break near the duct, due to the fact that it was weakened. My opinion is the first way is the easiest and more affordable.

    Next to that we should pay attention to - holders of the blades.
    There are options to gluing on tsiakrin and Szolkowy thread, and the imposition of the PCB plate without glue. BETTER NOT BE CONCERNED SAMOPALOM AND SUPPLY NEW!

    More than something happens to the balls mount blades, swashplate and flaybara. They also try to repair, but it would be better if you replace them with new ones.

    Can also be replaced by tuning the details, they are made of aluminum, however these details and much heavier than the catabatic. But more on that later.

    Still, at first, often breaks down the tail rotor. Bent after a crash. Treated with the purchase of bundles of new screws, because perhaps this is one of the major consumables. You can try at your own risk straighten to the eye.
    Following are the main rotor blades. Well have to try hard to break them, but still has a place to be. Most are broken at the joints with the holder of blades.
    Consider the following revision. Need to breakage, cut off the line. As shown in the photo. The truth appears buffeting during takeoff, but it quickly passed, after the blade will fall into place by centrifugal force.

    Another common problem after a serious crash, with the frame. Usually broken places marked on the photographs.
    Several ways to repair. One may seem ridiculous, instead of standard bars, you can insert makorony.
    The second bonding (as glue already described above).
    Easier and safer to buy new and do not fuss.

    Sometimes the big gear moves out from his seat. Treated through holes, drill and fix the 0.9 self-tapping of the blade.

    Now list the details that rarely fail.
    Tail boom. Can break into the housing frame. Cock hard to find. To be replaced.
    Mainboard. DO NOT FLY WITHOUT HOOD! Afraid of hard blows can chip away leg, contacts. Ration is possible, if not helped by a substitute.
    Servo motor. Replacement.
    The motor main rotor. Itself will have an effect. If you fall in power can try to clean, but usually better to put a new one. Same for the rear.
    Hood quite durable. If crumbled after the crash, can be glued, if you do not care about aesthetics, and just trying out the life of helicopter pilot. When learning to fly buy a new one.
    Extremely rare failure - tip the helicopter.
    In general, a great rarity - flaybar. Usually he wears. The box with the helicopter is spare, but it's better to buy from mikroheli (more on this in chapter tuning and moding).
    Plastic thrust control the main blades of the helicopter eventually erased. Buying a new or modified (read the section tuning and moding).
    As well as plastic rod erased hub. Replacement firmennny or tyunersky from mikroheli or Xtreme ( http://www.xtreme-production.com ).

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    Saturday

    Bell P-39 Airacobra

    Small models of fighter II. World War II found among the modelers a lot of fans though their construction is usually more work than the similarly large and well equipped training models. The American Bell Airacobra Ordering P-39 version of Q, the choice fell because it has a tricycle landing gear, which will facilitate the launch and landing, and also because their proportions are very appropriate.

    The hull is a proven design of the side, united in front of the bulkheads in the rear rails.
    The wing is on the whole, but put together two halves separately. The main material is balsa, profile, owns 14% / 11%.

    The tail surfaces have a skeleton frame and including the rudder hard cover. Area GTC profile flat plate is 5.5 dm2.

    The landing gear is tricycle removable.
    The power system can be a very good engine MVVS 2.5 cm3, Max OS 3.2 cm3 or 3.5 cm3 MVVS - that if we are able to control the gas sensitivity.
    Coatings including protective top coat is the current version.
    Elements are operated elevator, rudder, aileron and motor speed.

    The main material (dimensions are in millimeters.)
    Balsa board width of about 70 dl. 1000: TL. 1-1 piece; thick. 2-8 pieces; thick. 4-3 pieces; thickness. 5-2 pieces; tl. 10 to 1 piece
    Pine (pine) dl bar. 1000: 3x5 - 4 pcs
    Plywood Air: TL. 1 - 150x300, TL. 3 - 200x300; thick. 5 - 50x200
    Beech prism: 8x18, length. 350; 8x16, DL. 200
    Steel spring wire diameter 3 dl. 1000
    Upholstery paper (Mikalenta) 2 m2
    Round polopneumatické to 50 - 3 pieces
    Adhesives: acetone (Kanagom), Hercules, epoxy
    Clear thick foil. 0.3 to 0.5 - 300x200
    Varnishes: breaking 600 g; nitroemaily color (shades of color according to the draft), synthetic clear (or High-gloss) 200 g nitro
    Products Model: plastic fuel tank 100 cm3; control horns, rod ends, swivel rudder, aileron levers set O 2; mount kit model M5

    The history of this map is somewhat strange. This is the final drawing of our most famous kite designer Jaroslav Fary. Its publication in 10/1988 modellers, J. Fara did not live longer (he died on August 31, 1988). The actual size of the Airacobra had come in several floor plans Modeler mentioned 159s, but just then, the issue of picket series is suspended because of problems with the postal distribution network news service. So Airacobra came out in a number of floor plans Modeler, but in the series modelers Business Plans for Model Prediction by number 159 to 1991.

    Airacobra therefore really does not fit floor plans to reissue Modeler. Already with regard to J. Faro, but we were sorry, that plan fell into oblivion. We agreed then upon his release with the owner of the firm V Model Info wizards. Detailed building instructions have not enough J. Faro write, the text comes out with a plan in the actual size of the Modeler (the plan of the model info was not truncated).

    Free Plans of RC aircraft model Bell P-39 Airacobra 





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    Thursday

    Ultra-L (model airplane drawings)


    Margin 1860 mm
    Length 1235 mm
    Weight 3100-3600 g
    Engine 6.5 cm3
    The controlled elements S, V, Kr., M
    Construction Martin Gaal

    Ultra-L model is designed for recreational flying, and especially for less experienced modelers who need to improve the management of radio system with four servos. The model is sufficiently stable and can be flown very slowly. Construction is relatively simple, even though they belong to the category of bigger models. Almost all parts of the model are removable, which is an advantage for their possible damage.
    The basis of the hull sides are connected by bulkheads. As the tail boom is used for thin-walled dural tube with a diameter of 30 / 0.8 mm. You can also use other tube sizes, tube or laminate.
    The wing is on the whole, however, we build two separate external components that enter the middle section. Wing to the fuselage is fitted with four nylon screws M5. Ailerons are hinged mounted plastic hinges
    The chassis is composed of spring wires, which bend and spájíme. The prototype is used pneumatic wheels with a diameter of 90 mm. Functionally satisfy the wheels with a diameter of 70 mm, but that does not fit the model visually.
    The tail surfaces of solid glue softer balsa boards. The outer edge of the stabilizer and vertical fin are reinforced by spruce ribs. Rudders are attached hinged plastic curtains. Finished tail surfaces are tubular tail boom attached with two screws M3 x 45
    The hull is thin potahovým plastered and painted with colored paper, synthetic enamels. The wing and tail surfaces are covered with iron sheets.
    The prototype engine is used MVVS 6.5 F 6.5 MVVS muffler, mounted on a metal bed. The fuel tank has a volume of 250 cm3. You can also use an engine capacity of 10 cm3.
    The management model can be used for controlling any set of four functions: Rudder with the tail wheel, elevator, engine and wings. Aileron control may be omitted, in which case it is sufficient to set up three servos.

    Drawings of RC airplane model Ultra-L  

    Click on drawing to view in full size 




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    Sunday

    Transmitter cover

    Some time ago I wrote about how to make Transmitter cover with their hands.

    Transmitter cover and hand warmer

    Turned me is such a thing.

    But today you can buy a ready-made Transmitter Glove ($12.99)

    And if you do not have money, you can use such vaiant. :)


    I bought Transmitter Glove and is now flying in light rain with no problems.

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