top and bottom. - Telemetry with a primer. side (in the east) have been flown a bit higher to keep visual-line separation "Hover" at 1450rpm, "Normal" at 1520rpm, and "Cruise" time. Most of the posters there put two batteries into the cabin, one on each side, and had a constant rotor speed. more power than usual because governor and flybarless system have to work hard then. During the flight, more and more heat seems to accumulate, despite the built-in may develop some distortion. At least I persuade myself of this just to feel even better about the This way, we avoided to have the sun in the The landing gear was crushed by the This the more so as a few modelers reported success with this combination in German web In February 2009, the 300C was rebranded as the Sikorsky S-300C. I found a natural place for really heavy batteries on You see the seam of the pitch rod length can be adjusted only in steps of half a turn of one ball link, one Mabye if it had a titanium hub like the BO-105. Both was not sure but in that case even with a preceded "Attention!". Then again, I think HIROBO still sells the wooden tandem-rotor blades because they just have to maintain the preset amperage and speed and which is determined by simply trying: I also reversed the servo's horn and sense of rotation, simply because I deemed and the three-blade metal rotor instructions "June 2012". has 12 channels (instead of 9), is new, and is more modern. it off, and set it down shortly to reduce the tail gyro gain (which I had inadvertently to 1600rpm). The stub on the pinion's top once. On its back side, the bracket included in the the ESC/governor is switched off. groups of values: in center position (1.5ms), rotor speed, amperage, and battery not only but especially in case an alarm is just signalized by sounding a badly drops even after a short flight time. holder had been painted black and glued on (with Canopy Glue) before. In about 7minutes of activity, 2450mAh were drawn out of the battery, that is 35% the helicopter is outdoors in freezing temperatures and the battery cools off. only), but HIROBO recommends a "commercially available 3-axis gyro" (flybarless in its direction and not against it. Then, if the 3.4V cell voltage threshold (set here) is underrun, the respective with the corresponding holes (drilled before) the knives were pulled out and the pins If and when they get worn off, altitude fluctuated up to -1m and down to -3m the helicopter between 1500 and 1600rpm (1800rpm maximum) so it will need quite some power. Now heat can be given off on both sides. landing gear turned out after my fancy. to damage there. The latter's steps are six times as big as those of the The instructions suggest to glue the panes around their edges with epoxy. But not only a switch for their notable drawbacks. It's easy to see the change in coning angle on a helicopter with an articulated rotor system (three or more blades), such as the Schweizer 300. to its case. Once it was clear which modifications are needed to reverse the main rotor's sense of not exactly easily due to the manuals' sheer size. That's also why the two values delivered by the receiver have well as the cabin to be able to check the C/G. It's advisable to use the lower rotational only 206mm to be "scale". powerful enough.) In the Internet, or Web for that matter, I found this model, which is "scale" Larger rotors on traditional helicopters are designed to operate in a small range of speeds, e.g. If the tail rotor's sense of rotation could be retained, the for later evaluation. as I found out by trying in the REFLEXXTR flight simulator. The Hughes 269 / 300 is a single-engine two- or three-seat light utiltiy helicopter produced by the US-American manufacturer Hughes Helicopters, Inc. and later by Schweizer Aircraft Corporation. charge left for landing. can spin at up to 30,000rpm but will be operated at only 15,000rpm in this (Result: no, yes.). can) because I wouldn't be able to do it well in any case. reversing its sense of rotation. of all model heli pilots worldwide have learned to fly with a HIROBO Shuttle. Maintenance Practices 24 1. type and frequency of announcements can be specified. Souffleur (Prompter in English). helicopter on floats and do water landings now. Taking the end-points, mean Flight video of yet another HIROBO S-300 (electric, three-blader) at YouTube Even the tail gyro gain recommendation was spot-on. and my really old (2008) transmitter, respectively. see. the receiver battery voltage is too low or the drive battery is discharged, respectively (according While the helicopter is still on the ground or on the setup bench, distance has only kept between 60C and 0C. inner lips into the holes with a small screwdriver. what is virtually impossible. after the ESC has been switched off (10:20) is due to residual heat in the motor; The values specified here are measured and logged by telemetry in the model. and the flybarless system. This is the helicopter's bottom where the ESC is strapped (with a zip tie) to the Motor temperature went up We have full metal blade capability - from abrasion strip replacement, coin patch repairs inboard of abrasion strip, dent repairs to refinish and balancing as a set or individually for main blades. There is even a technical advantage of the big batteries in that their C-rating can be lower further treatment needed. The dummy tanks restrict the room to place batteries on the main frame's sides. To emphasize their recommendation they add a warning: can trigger the annoncement but also tilting or moving the transmitter. Anyway, the batteries have to rest right smack in the middle of the landing gear vertically (not visible here) had a fraction of a millimeter play and was If the main rotor's sense of rotation is reversed, the tail rotor's is reversed as of 4.20V) per cell, which is why only 6750 is specified as capacity. There was just running on the ground, then hovering at 1420rpm All of these screws are neatly enumerated in the instruction manual lest the helicopter is complete. To be "scale", the The 300C (or 269C) flew in August 1969 and remains in production basically unchanged. the tangle of red and black cables and yellow connectors. that is there was no obvious snap-in when a yaw had been ended. But I couldn't find any fault and tried again, what led to a veritable crash. The motor is specified to withstand up to 150C, but I set only 100C the setscrew which fixes the sleeve in place. is my treat because I chose the big 7000mAh battery, split it in two, and use is not shown here. Coldness does no harm to the motor so its low-temperature warning Of course, it could simply spin faster but that would require to change the tail rotor gear Notabene: After 4hours flight time with this helicopter I'm still a whole flight. I tried the 580mm blades in the REFLEXXTR flight simulator and got the hover helicopter should stay in that range.). Still both values coincide pretty well and I would get an root and power it by an own governor-ESC. Shortly before touch-down (10:05 to 10:20), amperage seems to be lower by Yet it's only a safety add-on in this case because a big battery (7000mAh) steel sheet disks especially made by TMRF Rdiger Feil. HIROBO Schweizer 300 build thread at rc-heli-fan.org with discussion of the "problem" (German) Two small magnets cling by themselves to the equipment are still missing and the battery placement is not yet settled. (Options that is maximum, latter can't be recorded, though. So basically, only drive data are recorded during flights. 80% for 29.5A and 1520rpm. 09-Aug-16 - Russian Helicopters to Receive Composite Blades. 1 Schweizer 300C Technical Information SZR-004 February 2008 1473 . be even true, particularly since the model has been sold since 1985. page as well. Sikorsky: Sikorsky H-5 Dragonfly / HO3S Hoverfly (S-51) Three-blade fully articulated main rotor. Then he put the heli in hover flight 6 feet high and took his thumbs in his workshop. Above the black/yellow XT90 serial adapter is the so-called Safety Switch. Nevertheless, a GPS is in this helicopter, just because it's possible and simply that way. The single, three-bladed main rotor and piston-powered S-300 is mostly used as a cost . The over all length from nose to tail is a mere 6 inches (150mm). LQI's 0.3kg (11oz or 0.7lb) more than I had expected. That's noticeable run-in of the whole drive the no-load (no blades) amperage I0 The tail gear seems to have some wear The main rotor blades had to be prepared for mounting. rotor blades and lowering rotor speed. Up to 16 values may be transmitted fitted to it. So one yet unmentioned consequence of the "wangle" Followers . Anyway, the calculations The (see above). ESC provide even most of the desired values; ESC/governor was set up and tested. Messerfrse {f} [Bodenfrse] rotary tiller with blade rotor. pushrod at top, like in the instructions) to have enough pitch range. on the frame's top will later hold the "scale" dummy fuel tanks. the boom is in the right position and the tail rotor shaft is horizontal. The long aluminum rods is the flight path as a synopsis of the flight: In the course of the flight, 14 more or less horizontal loops have been flown, properly. In hover flight, that makes for turbulence and prevents the helicopter from standing still While running up the main rotor (1:50 to 2:25), the amperage line (pink) is parabolic To my own surprise, I finally got the hang of nose-in hovering in 2017. 18-Oct-16 - HTC Metal Main Rotor Blades for Bell Helicopters. lower now. and powers the Safety Switch, which would show no light if something would be wrong. is at its maximum, and it's a spectacular 78% efficiency overall (taking all electric a problem. Main and tail gear will have to run-in a bit and will get some grease. That effectively settled the battery question. That should also pertain to the main rotor as usual back then a two-blader with 15minutes flight time if only 75% of the battery's nominal capacity are drained. all three pitch rods had to be shortened but that was done later when the blades' If, by contrast, the questionable value is voiced as an alarm, that is useful. exceeding or falling below adjustable limits. 290 to 310 RPM. The former case results in maximum amperage The new transmitter's voice output is configurable but simpler compared to the Souffleur. Only the so-called absolute be attached to the helicopter. hoarfrost so my fingers were frozen (and I had the jitters). pressed the pins with a cutter knife on each side. Two different configurations of the cockpit are available . so little amperage that temperature even slightly drops (below 52C/126F). diameter is 1092mm (blades 477mm long) and it should be operated at speeds because warm grease flows down. That worked out convenient place, both values have been included in the display. figure-eights make for smaller amperage fluctuations both up and down as another warning level, in addition to the cell voltage warning and not just redundant. (from 1C/34F) to 38C (100F) in flight and up to 47C (117F) But 77% overall (1% less) is still a spectacularly as warning threshold because the sensor is not in the motor but simply clamped (which, as the percentage of torque transmission, by definition includes any additional I'm prompted. exactly a typical use case. to the leading edge and a bit around it. a timely signal that draws my attention to the telemetry warnings following soon - Hovering at 1420 rpm Besides, TMRF Rdiger Feil, expert and distributor for The former voltage That may Main-rotor offsets [] That is almost 2 inches shorter than the mCX making the 300C version the smallest coaxial RC helicopter that uses true swash plate cyclic control and incorporates a . the whole time of a flight. But the three temperatures are interrelated, anyway, and if So this is a diagram for 80% power setting, which is needed for hovering at 1520rpm I like this type because it looks so cute to me. been left in their default places 0 and 1. In gusty wind, the helicopter sometimes reaches its limits if main rotor speed is low. That's how I trigger the side is an axle. fastened on edge then (see previous picture). The main frame's bottom plate is still missing. (30mm instead of 22mm) than the HIROBO Shuttle blades and would look quite massive. Finally just a theoretical experiment: (equivalent to 1560rpm main rotor speed). The big round hole sideways through the whole frame is nearly exactly below the main glow engine). (kv) and 11m (milliOhm) internal resistance (impedance, Again I needed Rdiger Feil's $49. It turned out that the hover blade-angles As a remedy, someone suggested and tried to install the horizontal stab really I wanted to have the gears replaced by new ones. maximum speed, which is 850rpm at this throttle setting. ring so the switch could be fastened with five small wood screws. are needed lest the batteries abut against the slanted dummy tank supports. The batteries are connected and the main-switch and a gas pump symbol. a full-scale heli the pilot sits usually in the right seat. amperage even though the main rotor had not enough lift. on the MSB; the display sequence (leftmost just two extra sensors are used to monitor drive battery The blades are well rotational speed is measured on the motor and held constant by the governor That The same works for moving the cyclic forward and aft. Turn-Key 300C with Excellent Component Times Remaining and Recent July 2018 Annual Inspection Sign-off. Anyway, something was wrong with the reversed freewheel and it could happen either, but I would call the model only semi-scale. a more massive head and wider blades. For good measure, another wangle would be corrected: Because the tail rotor had and had to wangle again so all linkages are clear from each other and don't rub against Two unused knobs for screws on each side of the main frame are perfect for fastening Both helicopters can be configured to seat 4 and the Schweitzer arguably has better visibility for the passengers in exchange for slightly less elbow room. All set screws were replaced then. The Hughes 269 was created with a fully articulated three-bladed main rotor wherein the blades advance to the right and a two-bladed tail rotor that would remain as distinctive characteristics of all its variants. 25-Jul-16 - S-64 Composite Main Rotor Blades First Flight. After a short break-in of gears and bearings all ran smoothly and with The tail rotor is just powerful enough for the heavy model. possible to plot the whole flight path three-dimensionally and including speeds. angles adjusted. It would have Looking even more like a helicopter. ball links have to be taken off the horn in addition. Hence flight time is so long and temperatures are so low. The fifth column defines is precise as long as it's in motion but produces erratic values when standing still. below. it could have been wrong to reverse the freewheel's inner parts. with Canopy Glue to prevent tilting. all because the altitude specified by the GPS is more or less inaccurate, that is -3m as well. Moreover, all is well visible even when it's overcast. I deem both statements true but think using a "flybarless" 3-axis gyro system is a info word is preset and can't be removed, anyway (hence grey). I was quite confident. amperage draw and longer flight times. Hard to find. 31-Oct-16 - Canada STC for Van Horn Bell 206B Blades HAC 2016. In the telemetry display pages, the font size and hence the number of displayed The boom is just That My helicopter is well stored, though, and will be flown not that much so I can just wait and swashplate were linked to each other and the servos, and tail rotor gear and head of them on demand only. The single, three-bladed main rotor and piston-powered S-300 is mostly used as a cost . resistances and all mechanical friction into account). There it combines into a reasonable group with amperage and remaining charge. 6S standard batteries and his 5000mAh (765g), 5300mAh (800g), discerning the helicopter's "state of health". the magnetic sensor is plugged in and on the left side the sensor bus First, the cabin's shape. the glow engine here it lends itself to be the electric motor's mount. That didn't work out, so the ESC was fastened have not only been tweaked but also adapted to hovering at different main rotor speeds. is for the motor only and leaves the decision for a battery and its placement to the customer. 40% more flight endurance is a giveaway benefit, and heavy weight is no problem 5000mAh seems to be the common capacity Rdiger Feil said that in fact different values for the three-blade rotor. step. Well visible is the landing gear's structure with four equal legs and sprung (Only at 125C/257F it would cut off.) In this case it's the newer version 2 power and 29.5A at partial power. the drive data also related to the heli's movements and the control inputs. they derived this S-300 from the old Shuttle and both have several parts in common. Then, the For me, six lines (values) per page is the best compromise between overview and readability. need bigger blades to cope with the main rotor's torque now. lever. This is the battery support on the helicopter's left side. afloat. coherent plan in the form of a spreadsheet. That's how the data are shown in diagrams. There's no way to have a more filigree head for models, and narrow blades are not backlash again. other option, "permanent", would mean an alarm is permanently (repeatedly) The biggest turn includes the farthest and coincidentally highest point of the Advancing to 100% at still 1520rpm, to make for a massive climb with maximum I just didn't glue the bars, and even if one of them LQI spot turns (4:15, 4:40, 8:05) that turned out well (pun not intended but left). voltage is monitored, which is more important and whose limit values are more easily will be plugged into the "flybarless" system (Microbeast) and The servo horns are not yet bolted here so I can easily take them off. the rear and this actually unnecessary cable bundle has been removed. It had to receiver and All required data can be found, even if Alternatively, I can flip the switch That in turn was done to follow the In cruise flight at 15 to 50km/h (10 to 30 mph) on a scale heli. That's another reason why there are less three-bladed main rotors produced now. The conversion kit offered by TMRF Rdiger Feil for the Schweizer300 values in the four-line pages: These are the basic telemetry device settings. Just to be safe, Cockpit. The switch is connected to the orange/white thing (strapped with a big zip tie) or Best Offer. There should be no other problem for the motor, either, since mean amperage is even Finally, after the helicopter had been flown been relocated to the left side (compared to their basic scale kit), HIROBO had That's why there seem to be two different lines of down which may be due to amperage peaks and the resistance between battery and beep. The crash damage to the landing gear was repaired and the helicopter tested can be quite different between flights. Build video of a HIROBO S-300 (glow engine, three-blader) at YouTube the ball link was moved to a hole a bit more outwards because else the servo would they are protected by the parts protruding sideways. flybar (paddles) and mechanical mixers to the swashplate. way. which is all black. with four set screws. With the three blade rotor, how much hangar footprint would it require ? This is an even more "theoretical" value possibly not relevant in practice. It's just a filler value here and on the next four-line However, that was known That was too tedious for me or isn't worth it, respectively, is triggered by one of the values on this page. rotor's center (just a bit further fore). A red and a black cable go from the ESC's other to 14) but yet constitute a meaningful three-line as well as four-line page. Now the main gear touches the pinion exactly where A Schweizer 333 is being used as the initial surrogate demonstrator for Sikorsky's X2 fly-by-wire technology rotorcraft program. The two LEDs are well-meant but actually redundant due to voice output. about 50mm tape, and the "red" blade as the lightest one got even recommended by HIROBO for the standard blades (477x39mm) at 1500 to 1600rpm Immediately after the drive battery has been plugged and armed, the special voltage (21.0V battery voltage is equivalent to 3.5V cell voltage.). The helicopter's simulator model which has the correct drive parameters Values and any "alarms" Something special is the I hope the swashplate linkage is visible here, as well as the swashplate driver 18-20-00 Tail Rotor Balance 24. (Shot at 2. My ROYALpro9 transmitter, bought in 2008, has no built-in voice output. were specified by the motor and model manufacturers, respectively, some had to be The hub connecting the tail rotor shafts turned out to be slipping. It's still possible to distinguish all values by their units, or in case of gears in the correct position. The . Of course, my intention was to see the blade tracking and my assumption was that the - Enhancement to balance the completed helicopter, but then the batteries sidewise on the landing The 230 S Smart is packed with Spektrum Smart Technology and is the first Blade heli to include the Spektrum DXS transmitter. The bottom side looks different, though. gear's leading edge). them to a standard "pod-and-boom" heli as a basis would have been too difficult Their lines' slope is quite steep so this is a On the Multiplex Sensor Bus (MSB), every value to be transmitted In Hupf is a German word Between the big aluminum lever's upper right end and that of its counterpart on the other The hub has to be adjusted so the thin shaft is straight and not bent. It just wouldn't in the air. were working. They are longer (95mm instead of 75mm) and wider The Schweizer 300CB HMI requires the tail and main rotor to be balanced within .2 inches per second . properly as far as that can be seen without the helicopter up and running. Despite the limitations (inaccurate altitude, abstract illustration) the GPS values such a screw and the shaft journal's length (23.5mm) was adequate no There should be sprung struts with different spring stiffness for the different (see above). are adjusted by turning the ball links on the pushrods, and instead of pulling out underground. More than 4000 hours remaining on Tail and Main Rotor Blades and Recent Tail Boom replacement. Schweizer RSG is now producing Schweizer S300C and S300CBi helicopters that are identical to the design when production stopped in 2016. the time. The discharge The expert pilot said it's too much for his taste (he's flying 3D) but I'll leave it sits on the tail boom's left side. Hence I could simply order Info words are spoken prior to the respective value to make it heavy batteries than I do already. The stabilizers, especially the vertical one, show my limited painting skills. The rotor head's blade holders are just turned so The reasonable and clear arrangement of values helps ought to have address4. Both were just replaced stand 100A). Almost all values are voiced if and when they exceed or fall below some threshold, Oval pieces of it have to be cut out at the blade root's The elastic shaft is fixed now. are inserted into one of them and then both halves are tightly joined up with quite a The stiffer struts should be labeled but they The ESC/governor did have problems, though. Those gyros of the Hughes500 would have been to my liking, but there were only fiberglass bodies voltages or temperatures and thus need an info word to tell them apart. The white and red tip stripes are film covering and run on top from the trailing edge The HIROBO Shuttle's configuration, with a glow engine turning clockwise down in the Then again, the splitting detriment is more than offset by the better capacity-to-weight ratio a major redesign wouldn't be necessary anymore since brushless electric motors can so bad, though, because the tail rotor is rigid and has no cyclic pitch control. may be accountable to the heat developed inside the battery. in the first place and for which a three-blade main rotor is available from its fit in the cabin and making room there. The occupants seat side-by-side (the pilot sits in the right seat). at low altitude and at slow speed, it would be not really useful because its hover, and landing. ESC to recognize a The helicopter is now even better than before at least I feel so. vindicated now. they were used for the test flight after the freewheel replacement but HIROBO had brought out this model as early as 1995 and obviously didn't modify at least out not so well in that the boom is turned a bit as soon as the screws are tightened is 4,5km/h could be correct as well. beginner so I'm just practicing figure eight, approach with following spot turn, if not all cases) because the tail rotor is more effective and less noisy then. At the top of the mast is the attachment point for the rotor blades . the connections. anything except as a matter of preference. Now I can simply try and Of course, that - Replacements They are redundant because it will hardly differ from the first. higher only during the hover (9:35 to 10:20) prior to the final landing. Free shipping. my Senior Telemaster Plus.) They are useless, though, which is why I replaced all of them by a short beep to shorten Selling for parts only. safety without telemetry: The ESC is working as a governor warning threshold. Just a correction had to be made: Any low cell-voltage warning at (27.5A at 1420rpm) meaning 492mAh/min (458mAh/min) battery drain output, an operating system similar to that of a smartphone, and a touch screen. "Es geht nichts ber Qualitt" - dieser Gedanke ist magebend fr uns von SpinBlades und unsere Produktion von hochwertigen und innovativen Rotorblttern. But for me, 10minutes net flight time is enough to check main rotor speed or a temperature. Now the warning level in the ESC had to be set up differently and the ESC had to be the model flies quite well even "conventionally" (with a gyro for the tail rotor The HIROBO Schweizer300 in its original state is a into the space below the tail rotor shaft in the main frame. The lowest servo, that with the white round horn, actuates collective pitch. The 300C, 300CB, 300CBI ? The motor is just even less working to its capacity and its efficiency For VARIO's 1000 Hughes 300 we recommend a main rotor speed of approx. made as unlikely as possible by maintaining the battery and by properly orienting Probably it wouldn't pay off for them to develop and produce new, maybe even modern Still they are quite far ahead of the rotor mast (where the C/G should be) Specialized Schweizer Tooling and custom powered lift . How do the different component times play out in the Schweizer ? Will help with shipping at your expense. are still missing as well as the cabin and the dummy tanks. Finding suitable ones and fitting the motor's increased further in a longer flight but in no way critical. went even through the trees, and take-offs and landings seem to have been the sensor suppresses such alarms during short amperage bursts. adhesive tape, the magnetic sensor sticks on the helicopter's frame so it's Consequentially, its The adjusting ring that holds the main rotor shaft the modifications for the three-blade rotor, which are specified in a separate manual. adjusted to be tight. wouldn't have been able to re-mount them, either. is still so much room. electronic equipment was installed, the 3-axis gyro was set up, and the drive with That seemed convenient to me, To render the model's performance in the REFLEXXTR flight simulator, place. Consequently, the freewheel was removed The voltages measured by the ESC I like the varyingly shining metal parts so I left them unpainted. This way also the tail rotor is always effective enough. Later, they were nonetheless replaced by a bit bigger blades. The new Blade mCX S300 has a main rotor diameter of 7.5 inches (190mm) and only weighs 1 oz (28g) - incredible! flight safety. main rotor and sufficient with the tail rotor. the drive characteristics had to be ascertained. - My Modifications 900 rpm. reduced further. for sports and trainer helicopters. Bolted to the frame's front are now parts made from aluminum sheet or plastic, respectively. The right-hand-drive-only S300CBi, with seating for two, has a MTGW of . Though the kit box pictured above with its print and box art has been left unchanged since And in the helicopter is a telemetry cell-voltage sensor which likewise has a Still the pitch angles have to be adjusted after mounting them to the rotor head. covered in black shrink film. automatically branches to a three-line "page" in case an "alarm" E520W-3 119.99 While the helicopter is The 6S had to hang under the bottom and would be prone support (where the Microbeast sits on top). and five-blade rotors by different special manufacturers. After the first flights, the ESC was turned around (upside down) in the hope of The correct main rotor diameter would be 1292mm then Is there a . The servo without horn on the left side well. since, as supplied, it's "the wrong way round". derived from the motor's field frequency by calculation. a side benefit. with a text program). for the first time, telemetry data recorded in-flight allowed for tweaking the I also like the traditional cyclic control in the Schweitzer compared to the T-bar in the Robinson. $9.95 shipping. rotor. and by 0.5C/1F before and after. line of sight and not on the ground and seems to be more reasonable in case of (see here), it seems that a GPS The tail boom truss comprises five short aluminum tube braces to hold the boom's root course, there are no suggestions for modifications, but with some effort it's well possible turned out to be 3.4A now. line (light blue) effectively amperage added up makes it obvious: The turns on the right Anyway, that's how I see it and that's why I decided for the 7000mAh Indeed this drive is operated where its efficiency curve eta (light blue) and are not really accurate, either. The main rotor blades could fold, and a rotor brake was available as an option. In view of already short flight times of electrically powered model helicopters,

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