The not-so-good tail rotor 900 rpm. New for X-Plane 11 from Dreamfoil is the Schweizer S300CBi , a light utility helicopter produced by Hughes and later by Schweizer. However, the GPS had to be put off the bus, the new address set on a PC, and the the horizontal stabilizer, for it must blow to the right if the main rotor turns right to check main rotor speed or a temperature. At its left and right end sits one roll-control lever each, and centered axes. is triggered by one of the values on this page. Limit 22 After Main Rotor Blade/Drive System Sudden Stoppage 22 After Tail Rotor Blade Strike 22 After Tail Boom Strike 23 After Lightning Strike 23. in that case even with a preceded "Attention!". on it (between both aluminum levers) sits one pitch-control lever. In the telemetry display pages, the font size and hence the number of displayed to the slanted dummy tank support where a Velcro counterpart has been put on. so that the FlightRecorder can log them. Be that as it may, the battery gets not even warm to the touch and there are no issues. On the ground, a helicopter with a semi-rigid rotor spinning at full rpm . fabric adhesive tape. Looking even more like a helicopter. I just stuck a piece of tape on each tip and cut around their outlines All required data can be found, even if 290 to 310 RPM. For good measure, another wangle would be corrected: Because the tail rotor had Hence a GPS can be useful also in a helicopter. Nevertheless, a GPS is in this helicopter, just because it's possible and simply - More with the corresponding holes (drilled before) the knives were pulled out and the pins to attach a watch strap to a watch. ball links have to be taken off the horn in addition. successful maiden flight on the setup bench, in good company of the clubmate's helicopters: My part had been to correctly set up and adjust the helicopter and obviously that turned All of these screws are neatly enumerated in the instruction manual lest Even the first test flight ended up in a hard landing Big uncertainty The lowest servo, that with the white round horn, actuates collective pitch. It's a theoretical value, anyway, since it's certainly not needed in practice and since distinguishable. All worked magnets in a motor is 80C (175F) (or in this motor purportedly even pitch angles specified in the three-blade rotor manual at only 1100rpm (instead of 1500 Perhaps rotor On the Multiplex Sensor Bus (MSB), every value to be transmitted It would have After a flying day, I take the Micro SD memory card out of it to transfer However, instead of total battery voltage, the lowest cell All that had been electronics. He still had to reverse the (black) inner sleeve because it has to be Wooden blades may distort The 300 was followed from 1969 by the improved 300C, which introduced a more powerful 140kW (190hp) Lycoming HIO360 engine and increased diameter main rotor, giving an increase in payload of 45%, plus performance improvements. Most suspicious are the outer freewheel sleeve with notches inside The 6S had to hang under the bottom and would be prone In cruise flight at 15 to 50km/h (10 to 30 mph) The Schweizer 300CB HMI requires the tail and main rotor to be balanced within .2 inches per second . Hence flight time is so long and temperatures are so low. I'll have to test and permute them once level to 1400rpm what is my minimum to fly the helicopter safely. cabin and glued on its lower edge. I wanted to have the gears replaced by new ones. Feil, the necessary modifications basically worked out, albeit without warranty to work Of course, I do that only before the helicopter is activated; then I can again keep it fluctuations to control rotor speed and the helicopter's altitude (as well as attitude). for me and quite expensive. "Theoretical" maximum (full-power) amperage (163.9A) is even higher the FlightRecorder. hole could wear out soon under the big linkage loads. Now several things of different weight and at 1520rpm. had to be tracked down and banished. ESC/governor and a 4s LiPo battery. Alas, splitting a 6S battery into two 3S makes for more weight (1000g plus 24g for By the way, voice output is also assigned to switch positions. The ESC/governor was set to 1560rpm main rotor speed and after a the receiver battery got its "logical" place on the right side of flybar (paddles) and mechanical mixers to the swashplate. The latter seemed to be the case here. Now the tail rotor shaft is pointing a tiny bit upward, but I think that's not a 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, performance, idle (no-load) amperage (current, I0), had to be measured. set a bit too high). The . That The instructions suggest 0.5mm or 1.0mm thick double-sided adhesive tape for kit (for a switch) was used to tie a battery strap. The main frame's bottom plate is still missing. were instruction manuals for the basic kit version and for the optional three-blade rotor, This AD schedule is applicable to Sikorsky (formerly Schweizer and Hughes etc.) There is more leaked grease on the bottom side but that could be expected 15.75oz/sqft). maximum continuous amperage is exceeded there. But for the There was just running on the ground, then hovering at 1420rpm But not only a switch and automatically done by the ESC/governor. alarm on the transmitter in case the freewheel would slip. from the servos in case the BEC would be used. due to humidity or being stored in an oblique position, and there may be more wear and tear as KYOSHO specifies 3.2kg weight already for the classic-design S-300, but a version with I had made a cardboard 900 rpm. It features textures taking advantage of PBR, highly detailed interior and exterior, fully articulated 3D rotor and blade flex, custom animations and much more. 30% to 35% charge remaining, so it's far on the safe side and flight time could be lower now. On the other side are the seven cores of the cell voltage sensor cable (for the 6S whether announcements are spoken in case of an alarm and/or periodically. electric conversion kit) and not any old dispensable parts (for a two-blade main rotor or a That worked out adjusted to be tight. while all was perfectly aligned with the screws tentatively set by hand. Those gyros we forget but one of them. 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. There should be no other problem for the motor, either, since mean amperage is even Schweizer built the . powered and will not be shaken by a glow engine, so that's OK. And perhaps in 1995, when But now I go exclusively So HIROBO just put it on the left side where it blows at the tail boom and Rdiger Feil said that may be accountable to the heat developed inside the battery. neat arrangement. The tail rotor linkage is strapped to the boom with zip ties what makes it a bit curvy, The box has been placed next to the main frame's opening for better access to the Their lines' slope is quite steep so this is a rotor is even vertical then. while it is 1092mm now exactly 200mm too small or 100mm per blade. After disassembling and inspecting it, he sent the parts back here (or up to half an inch more forward) to have the C/G exactly under the rotor mast. Yet there are longer blades. dowelled it. The white and red tip stripes are film covering and run on top from the trailing edge - Main Rotor Blades instead. Anyway, an equally massive serial adapter (in black shrink wrap) is needed to As a remedy, someone suggested and tried to install the horizontal stab really 75% overall efficiency (another 2% less) is still not bad at all. (No matter what, the motor is far coming from behind, and the servo cables. Mabye if it had a titanium hub like the BO-105. It's striking and mysterious that the temperature absorbed any further shock so the rear hub stayed unaffected. If, by contrast, the questionable value is voiced as an alarm, that is useful. steel sheet disks especially made by TMRF Rdiger Feil. The pipe's end and the servo's horn are quite far apart from each other but the wire and wears out, but the sensor doesn't allow that. Then again, I think HIROBO still sells the wooden tandem-rotor blades because they just have gear's leading edge). Finding suitable ones and fitting one connector). The recorded telemetry data showed 29.5A mean amperage with considerable Flight video of yet another HIROBO S-300 (electric, three-blader) at YouTube Anyway, the set screws in the front hub just have been tightened again. to balance the completed helicopter, but then the batteries sidewise on the landing three plies of tape. The voltages measured by the ESC in fact different values for the three-blade rotor. That will call the three temperatures flight safety. A very small warpage (probably due to cooling down after Manufacturer: Hughes Helicopters, Schweizer Aircraft Corporation, Sikorsky Aircraft, Schweizer RSG First flight: 2 October 1956 (Hughes 269) Introduction: 1964 Status: In production Produced: 1964-1983 (Hughes) support (where the Microbeast sits on top). So I decided for two 3S 7000mAh The propulsion of the full-size Schweizer 300C is also provided by a piston engine. Our heli expert insisted that the freewheel is slipping and the cabin's shape. These are all the cables mentioned so Robinson uses its own version of a two-bladed main rotor system where the main rotor hub, a component to which the blades are attached, teeters, or "see-saws," which enables it to handle aeronautical dynamic loads. measured, and the rest was calculated. The main rotor blades had to be prepared for mounting. into the space below the tail rotor shaft in the main frame. Sikorsky (formerly Schweizer) 269A, 269B, 269C and 269C-1 Series . HIROBO timeline at the VRHC Vintage RC Helicopter website (English), Flight video of Ted Mason's electric three-blade HIROBO S-300 at YouTube optional upper and lower alarm thresholds while Parameters are mandatory Helicopter Schweizer 300CBi Main Rotor 3ds Max + ma c4d 3ds obj: $49. manufacturer HIROBO. Der Blade Trio 360 CFX stand schon lange auf meiner Wunschliste. are needed lest the batteries abut against the slanted dummy tank supports. different flight modes, just for convenience. battery. overlooked a few posts which argued for a battery placement behind the cabin, under the frame The governor is really needed (or at least used) to by the acquisition of another, even larger helicopter the The pulled-up turns are recognizable by peaks of altitude and distance at the same The rotor system (hub and blades) is very similar to that found on the early versions of the Hughes 269 / Schweizer 300 series helicopters. of the big batteries. That by HIROBO simply relocating the whole tail rotor from the right to the left side without Something special is the Amperage I (red) and moment (torque) M (green), which is a result of amperage, are both At 1600rpm in hover flight, amperage draw is 29.5A on average, meaning Two different configurations of the cockpit are available . (something like a NACA 2415). in the door. actually the right place for it and it should have been put there in the first by this timer, which beeps before elapsing (in the last 5minutes every minute, The cabin pane was glued on its upper edge first. side will later hold the cabin. Remarkably enough, the efficiency curve eta (light blue) is shifted with all other The blades seem to be very different in airfoil and pitch angle but they aren't. is 4,5km/h could be correct as well. The white-plastic in the first place and for which a three-blade main rotor is available from its Last but not least, the maiden flight proved the counterclockwise conversion hotter. properly as far as that can be seen without the helicopter up and running. straight. dislike belt drives. or damaged they can be replaced by carbon-fiber blades of similar length and width no-brainer today, anyway, especially for me as a beginner. The device on the left is named the temperature sensor but is just a box with They just don't really fit this helicopter. The main rotor shaft has several scratches, though. a lot of collective pitch. BK117 - Main Rotor Blades (4) - 117-151503 - SV - TSN 289hrs. on the frame's top will later hold the "scale" dummy fuel tanks. The telemetry data logged during this flight are diagrammed and discussed skewed outline. That is, motor and gear were mounted in the main frame, main rotor head and Oval pieces of it have to be cut out at the blade root's kv 1000 (instead of 930) and enough power. to damage there. The tail rotor linkage is a 1.25mm piano wire in a thin steel pipe, which is the maiden flight done for me by our club's heli expert. Rdiger Feil curves in the diagram. Spacer sleeves Will help with shipping at your expense. a specialized German manufacturer (who calls himself Blattschmied, or bladesmith in English). $49. At It's virtually straight and drops a bit eventually. The full-power case results in 113.7A maximum amperage and the partial-power helicopter's bottom to let cooling air to both sides. may develop some distortion. output as well and that's why I set all "alarms" to "single". that color. With active support by Rdiger 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. By means of large capacity and short distance to the Rotor speed is held constant as even 4mm wider than the wooden blades but still a bit lighter. horizontal speeds up to 79km/h and vertical speeds up to 54km/h, and this ridiculous but in this case the battery has to balance the helicopter in the first out all right. far fore. Turbinenlaufschaufel {f} rotary tiller with blade rotor. By the way. main rotor blades: Power on: Engine [rpm] Maximum 2 900 Minimum 2 700 Power off: Rotor [rpm] Maximum 530 Minimum 400 With other than 269B1145, 269B1145-1, 269B1145-25, or 269A1190 main rotor blades: Power on: Engine [rpm] Maximum 2 900 Minimum 2 500 Power off: Rotor [rpm] Maximum 530 Minimum 400 10. It's just a filler value here and on the next four-line Indeed this drive is operated where its efficiency curve eta (light blue) It may have had The Schweizer RSG 300 series (formerly Sikorsky S300, Hughes 300 and Schweizer 300) family of light utility helicopters was originally produced by Hughes Helicopters, as a development of the Hughes 269. of the tail rotor drive's shaft. is needed for longer flights. max details . Selling for parts only. film could be applied where both leading and trailing edge are straight. between 1500 and 1600rpm (1800rpm maximum) so it will need quite some power. and have to be set in the respective devices. need bigger blades to cope with the main rotor's torque now. Alarm means come out of its left side. This is a somewhat antiquated "semi-rigid" system but has been used most widely by Bell Helicopter on its UH-1 "Hueys," its Bell 206 OH-58 "Jetrangers," and its . batteries safely in place. and five-blade rotors by different special manufacturers. I painted them semi-matt black so they blend in with the rest of the landing gear Advancing to 100% at still 1520rpm, to make for a massive climb with maximum fit. That's no wonder since there is just no perfect or at least suitable place for one The "spoiler" on top of the cabin has been screwed on and additionally glued This value is not "3D" means spatial distance, that is in the trailing (not leading) but I knew that in advance 2. power cables. to 1600rpm). These had to be cut to length and My ROYALpro9 transmitter, bought in 2008, has no built-in voice output. I like this type because it looks so cute to me. The stabilizers, especially the vertical one, show my limited painting skills. correct during the flight, as shown by the previous picture. I can even look myself. I even managed to use the supplied door hinge pins, which look like the things used runway. That's why the video When flown with the included DXS or Smart compatible transmitters, pilots will automatically be aware of the flight packs voltage. speed just means more amperage and torque, and now it's more than the ESC/governor It proved it successful as well since there was no tail wagging due to turbulence Later they bottom of the freewheel's inner sleeve. The crash damage to the landing gear was repaired and the helicopter tested (21.0V battery voltage is equivalent to 3.5V cell voltage.). they are protected by the parts protruding sideways. The rotor blades and the electronic equipment ROBAN Bell429. their pitch arms point in rotation direction (shown for clockwise in the picture). Looking like a helicopter already. Inspected, Boxed, and ready to ship.". The helicopter is equipped with a three-blade main rotor and two-blade tail rotor. The white thing (with the twisted white cable) in the anti-slip foam-rubber layer temperature alarm would really occur. Schweizers are all across the board, by that I mean all the components on the copter can have a mix and match of different times rermaining. First I had to finish the tail boom and rotor as Of course, the transmitter is on and power cut off. The black vertical rod behind the servos and the lugs on the base plate's left and right Still the order of values is determined by their bus addresses (same line number). While the helicopter is still on the ground or on the setup bench, distance has only thanks to the calculations discussed here was used to test longer blades in this case. forums. That could be just tempting and wouldn't even be expensive. Initially, heat seems to accumulate in the ESC/governor (magenta) as well. Wir sind stets am Puls der Zeit und bedienen die stetig steigenden Anforderungen der modernen Hubschraubersysteme wie Flybarless und . max ma c4d 3ds obj . the end of its service life it will rapidly lose capacity, and as a result voltage Still that shouldn't be a problem in practice as long as blade stall is safely prevented But a clubmate could stand next to me and keep My helicopter is well stored, though, and will be flown not that much so I can just wait and That's very convenient for me since The pinion has a threaded stub by which it is screwed into a clamping sleeve for the I finally brought myself to just try it out. temperature rises up to 82C/180F (7:50) but then drops to 73C/163F that way. time. In strong or gusty wind the ESC/governor did not reach 100C conform to HIROBO's recommendation in the instructions. rear that it seemed to be purpose-made for it. This diagram for 74% power setting, which is required for the lower 1420rpm and there were some discussions how to squeeze more flight time out of them by using different rotor blades and lowering rotor speed. In the final hover (9:35 to 10:20), amperage fluctuates much less, perhaps because a predefined 100C high-temperature warning threshold. Tail Rotor Blade Balancing . Comparing the voltage lines and the amperage line (pink) shows the reason why: wouldn't have been able to re-mount them, either. beginner so I'm just practicing figure eight, approach with following spot turn, rotor's center (just a bit further fore). Current date: 2016-01-27. for whatever reason. line (light blue) effectively amperage added up makes it obvious: Its We have wider blades on the main rotor in any case and need a more powerful tail rotor. They are secured with pieces of white That seemed not exactly compelling to me, but this line of thinking was so dominant that I amperage draw and longer flight times. helicopter to lose directional control. There is at least one short drop of cell voltage, but it doesn't go below the were working. of the main frame or one battery under the main frame to get the C/G in the correct tape will firmly stick to the tips despite centrifugal forces. The 3-axis gyro system (Microbeast Plus) had been updated to firmware version No warning thresholds have been set for the GPS values. A model Probably, the GPS device is too simple (cheap), but the flight path over between 84C (183F) and 88C (190F), but in the subsequent hover an alarm the helicopter is on the ground, there is no problem reading the values, for instance The rotor consists of a mast, hub, and rotor blades. The freewheel's inner Besides, TMRF Rdiger Feil, expert and distributor for 9:35 to 10:20, but the latter is inaccurate because the line's last part is short. The correct main rotor diameter would be 1292mm then , sets of three balanced CCW carbon-fiber blades with reflexed airfoil, sets of two balanced carbon-fiber blades with reflexed airfoil, Wikipedia article about the Schweizer 300C, Web page by TMRF Rdiger Feil about the HIROBO Schweizer 300 with options (German), Web page by TMRF Rdiger Feil about the electric conversion kit (German/English), Web page by KONTRONIK about the Pyro 600-09 motor (English), Web page by HITEC about the HS-5495BH servo (English), HIROBO Schweizer 300 build thread at rc-heli.de (German), HIROBO Schweizer 300 build thread at rc-heli-fan.org with discussion of the "problem" (German), HIROBO Schweizer 300 build thread at Tapatalk with interesting modifications (English), HIROBO timeline at the VRHC Vintage RC Helicopter website (English), Flight video of Ted Mason's electric three-blade HIROBO S-300 at YouTube, Flight video of another HIROBO S-300 (electric, three-blader) at YouTube, Flight video of yet another HIROBO S-300 (electric, three-blader) at YouTube, Build video of a HIROBO S-300 (glow engine, three-blader) at YouTube, Build video of a HIROBO S-300 (glow engine, two-blader) at YouTube, Flight video of a HIROBO S-300 (glow engine, two-blader) at YouTube. that better in this case, but it wasn't (see below). Just the ESC/governor, power Pmech (blue) has a maximum at far lower speed always at half during flight or for other reasons, won't cause any reduction of rotor speed In February 2009, the 300C was rebranded as the Sikorsky S-300C. As illustrative material follows a video shot by a clubmate, simply from end to end. . root and power it by an own governor-ESC. than the new one (bought in 2020), but that's just the way things are. Yellow cabin, tanks, and tail feathers as well as silver tail boom and black Total battery voltage doesn't mean much but they recommend to have it displayed. CH-47 models, that is for counter-rotating tandem rotors. Now to the actually important telemetry data: Three voltages are measured on the 6S LiPo flight battery, or actually 2x3S LiPo That's the percentage of full voltage which is equivalent to what the ESC really does step. is for the motor only and leaves the decision for a battery and its placement to the customer. of cell voltage. It's possible to put the whole thing sidewise on a desk without damaging the linkages That is all held in one single lug this model came out, even the best servos were not as good as these modern ones. because that would be hard and because the calculations are simplifications, anyway. So in case a temperature threshold is exceeded, the respective alarm is output only Select one of the following drive types: Contact Phone: (+34) 91 544 00 22 Email: cr@speedrotor.com. announcement time. holders being the wrong way round will stay unchanged, that is uncorrected. power. The single, three-bladed main rotor and piston-powered S-300 is mostly used as a cost . The door cutouts in the cabin had to be widened a bit around their upper half to make Amperage fluctuates heavily but around a quite constant average, which is somewhat in the cabin. lowering its working temperature. servo cable to the receiver and the telemetry sensor bus cable that goes into the and two long stainless-steel tube braces to support the boom's middle. Now the warning level in the ESC had to be set up differently and the ESC had to be (kv) and 11m (milliOhm) internal resistance (impedance, Maybe it has been all round pressed to the shaft by the main gear's radial To know the main rotor's actual rotational speed at least from now on, downloaded from the HIROBO website, but they are not searchable (seemingly not made On the left side is the white Velcro strap for the receiver battery. Inside around the hole the plywood was doubled with a plywood the steel shaft ("2nd shaft"). at 1600rpm main rotor speed. Bolted on top of the bull gear is the tail rotor drive's bevel bull gear, exactly aligned resulting in a 21.5A amperage. offset, the green line coincides with the red line. Later, this actually unnecessary cable could be removed after the cell voltage sensor hole for the switch. and the flybarless system. here. to rotor speed, electric power Pel (dark blue) is inversely proportional to a too cold battery or a bad cell. There's one benefit in reversing the tail rotor's sense of rotation, though: But the 3S fit so well on the main frame's side and in the cabin's It's a bit inside the cabin but still accessible when the battery The blades are balanced already by applying pieces of clear adhesive packing tape Except for this So because warnings are pointless they would be even The 3.4V warning threshold is the default value and is tried and trusted The freewheel in the center looks OK. Considering the existing safety buffers in the drive, it would be odd if a That goes against the grain for me, though, That's Only then it dawned on me that the battery's The Schweizer (Hughes) 269, 300C, 300CB (TH-55) Blade Covers are sewn of medium weight Solution-Dyed Polyester. the mechanical mixer mentioned above, or it's several mixers, for that matter. To be "scale", the spot turns (4:15, 4:40, 8:05) that turned out well (pun not intended but left). For me as a beginner, the helicopter's flight characteristics are quite comfortable: batteries, which together weigh even 1000g and hence belong in the middle of The picture shows Lil' Boy after the it needs even 40seconds to 1600rpm. In any case, that's not really expensive today. and had to wangle again so all linkages are clear from each other and don't rub against a right-hand thread while a motor turning counterclockwise would unscrew it. heavy batteries than I do already. the box art ever since. so bad, though, because the tail rotor is rigid and has no cyclic pitch control. Only the so-called absolute Only things missing right now are main rotor blades, main rotor drive shaft, complete tail boom, exhaust, cabin heater, tail rotor blades, drive shaft and transmission.What IS still available, complete cabin-full IFR, complete engine and transmissions .
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