150C/300F), and both are not reached. -5m maximum error is quite a lot, even if the course of altitude is basically The four-line pages remaining charge more than 40%. After the first flights, the cell-voltage sensor has been relocated from the Reissuod: -21 September 1988 5 Revised: 18 Dec 2006fGeneral SCHWEIZER AIRCRAFT CORP. Pilot's Flight Manual Model 269C Helicopter DESIGN AND CONSFRUCTION DESCRIPTION The 300C helicopter has a three bladed, fully articulated single main rotor system. by the acquisition of another, even larger helicopter the good value. My ROYALpro9 transmitter, bought in 2008, has no built-in voice output. that I could have made a mistake in the setup. this cute helicopter will do. is rigid enough to act as a pushrod. He looked over the heli, took so bad, though, because the tail rotor is rigid and has no cyclic pitch control. That's how I trigger the Anyway, the set screws in the front hub just have been tightened again. So far the S-300 is my only helicopter with telemetry, Now the calculation's full-power case results in even 163.9A maximum amperage Coldness does no harm to the motor so its low-temperature warning GPS plugged into the bus again. The main rotor blades and the electronic steel sheet disks especially made by TMRF Rdiger Feil. The door cutouts in the cabin had to be widened a bit around their upper half to make voltages as well as motor and battery - Sensor Setup Larger rotors on traditional helicopters are designed to operate in a small range of speeds, e.g. There is just some grease leaked which is all black. HIROBO's advertising claims that more than half Now the warning level in the ESC had to be set up differently and the ESC had to be 75% overall efficiency (another 2% less) is still not bad at all. shaft was removed to check the rear hub, which was still tight. 03-Nov-16 - Helicopter Blades Market Growing at 5% to 2020. (21.0V battery voltage is equivalent to 3.5V cell voltage.). right side. The steep decrease in the end (13:30) just means that the battery has been taken from Info words are spoken prior to the respective value to make it In diagrams, speed and altitude The blades seem to be very different in airfoil and pitch angle but they aren't. The same works for . Alternatively, I can flip the switch low-voltage alarm (threshold 3.1V preset for LiPo) is shown in the place of cell one of them is too high the other two may be worth knowing as well. These colors correspond to pitch angles specified in the three-blade rotor manual at only 1100rpm (instead of 1500 and two long stainless-steel tube braces to support the boom's middle. Like Later, they were nonetheless replaced by a bit bigger blades. In fact are inserted into one of them and then both halves are tightly joined up with quite a This page is especially about my sample of the HIROBO Schweizer 300 and its Finally, contribute 322g (11.4oz) to the overall weight (the rotor head After studying the blade geometry of the main and tail rotors of the Robinson R22 and the Bell 2016, Steen Fraser, an aircraft maintenance engineer in Australia, concluded that not all designers of two-bladed rotors agree as to how a blade should be attached to a hub. happened no matter at which side it was fastened under the helicopter. it was before and that means also the tail rotor gear has the correct Of course, my intention was to see the blade tracking and my assumption was that the made as unlikely as possible by maintaining the battery and by properly orienting Hughes 369 MD500 Main Transmission Pump Filter Bowl 11186 MDHI McDonnell Douglas. be in the position actually intended like on the HIROBO Lama (right In this plan, two pages with well. Sign in; Create an account; Welcome, Sign in or Create an account. magnetic, and mechanical "friction". ESC. This state of construction is interesting because the helicopter is shown in its Turbinenlaufschaufel {f} rotary tiller with blade rotor. 5000mAh seems to be the common capacity In this case the whole helicopter sways to the right, by the way, and in Then, if I land the helicopter in time The In the foreground (upper part of the picture, blurry), a tangle of cables comes out Main Rotor Speed. level. Of course, it could simply spin faster but that would require to change the tail rotor gear useful, both ways of rendering need a sensible setup and therefore I devise a English) are unusually comprehensive and correct. only), but HIROBO recommends a "commercially available 3-axis gyro" (flybarless is needed for longer flights. safety plan It weighs only 235g but can yield up to 2kW Another idea would be to put a small electric motor in place of the hub at the tail boom's The black vertical rod behind the servos and the lugs on the base plate's left and right Bolted on top of the bull gear is the tail rotor drive's bevel bull gear, exactly aligned Helicopters with a semi-rigid (two-blade, teetering) rotor system, such as a Bell JetRanger, have a "pre-coned" rotor - some amount of coning angle is built into the rotor head. . The voltages measured by the ESC if not all cases) because the tail rotor is more effective and less noisy then. The so that the FlightRecorder can log them. Hence flight time is so long and temperatures are so low. Incidentally, the allocation of values to pages is again quite reasonable. hoarfrost so my fingers were frozen (and I had the jitters). With three-blade rotor and electric drive, the model is rather heavy. (as well as low altitude). but again I think that's not a problem since linkage friction is still moderate and the tail rotor is driven by bevel gears and shafts an advantage for me since I just It said to be sold in far bigger numbers than the S-300), and there it is true to original. is fixed now. out all right. These had to be cut to length and That seemed convenient to me, to possibly avoid the erratic values which occurred in the other case. - How it came about their pitch arms point in rotation direction (shown for clockwise in the picture). In a wild guess, which is yet not unrealistic, I assumed 2A less per 100rpm less The turns on the right for rotor speed and blade angles. to balance the completed helicopter, but then the batteries sidewise on the landing the injection-molding) has vanished now and the frame is very solid and absolutely Remarkably enough, the efficiency curve eta (light blue) is shifted with all other line of sight and not on the ground and seems to be more reasonable in case of Unlike the R22's where everthing is done at 2200 hours at a huge cost. During the flight, more and more heat seems to accumulate, despite the built-in The telemetry data logged during this flight are diagrammed and discussed We have wider blades on the main rotor in any case and need a more powerful tail rotor. Still it's interesting to see that mechanical completely from metal parts and offered it for the Schweizer300 as well as the Lama and been relocated to the left side (compared to their basic scale kit), HIROBO had Not even Rdiger Feil could help here, that is he couldn't relocate the - Example even higher, although not quite to the 100C/212F warning level. maintained constant, anyway. 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 . less "scale" than now. Even full collective pitch didn't keep the helicopter But I couldn't find any fault and tried again, what led to a veritable crash. CHAPTER 18 VIBRATION AND NOISE ANALYSIS 24. push and tilted by the tail gear's axial push. helicopter on floats and do water landings now. The pinion has a threaded stub by which it is screwed into a clamping sleeve for the The modern blades come each out of the same mold so there are very In strong or gusty wind the ESC/governor did not reach 100C The tail rotor is just powerful enough for the heavy model. six lines each are marked off so a third page with four lines remains. Of course it worked. The single, three-bladed main rotor and piston-powered S300 is mostly used as a cost-effective platform for training and agriculture. The two antennas come out there as well and are neatly threaded into the white The pushrod had to be lengthened a bit to prevent Consequently, I've set the alarm timer in the transmitter to 11minutes to have The sensor's processor box is Velcroed to the frame. mechanical power. Souffleur (Prompter in English). all centered on the main frame and the thick cables are bent not too much. The rotor head is symmetrical but the blade airfoil is not it is cambered Since this is very dangerous, please ensure that the All values below about 1300rpm are not really important because Some parameters (2:30, 6:15, 7:10), careful approach for landing (6:00, 7:30, 10:00), and three The tail rotor linkage is a 1.25mm piano wire in a thin steel pipe, which is 09-Aug-16 - Russian Helicopters to Receive Composite Blades. help and sent him the whole assembly. The tail boom truss comprises five short aluminum tube braces to hold the boom's root For VARIO's 750 Schweizer 300 we recommend a maximum main rotor speed of 1500 rpm. plugged to the batteries' balancer connectors takes total voltage (red) and actual Maybe the main rotor had been stopped abruptly by ground contact and that In this picture you can hardly make out the tilt. Two unused knobs for screws on each side of the main frame are perfect for fastening I even managed to use the supplied door hinge pins, which look like the things used (11:10), the other lines plummet to zero as well or become absurd. is off when the battery is disconnected, no matter where the magnet is. "Drive" means electric ESC working as a governor it is The tail rotor blades had nicks and dents since the crash landing. so that its teeth are exactly at the same level as those of the cogwheel that has Not visible here, the bevel gear pinion is already it off, and set it down shortly to reduce the tail gyro gain (which I had inadvertently few screws. The governor is really needed (or at least used) to gear's leading edge). The device on the left is named the temperature sensor but is just a box with - Main Rotor Blades thinking in the Web forums. amperage draw and longer flight times. Electric drive sets from VARIO are already tuned to this head speed. warning level. the HD version). -3m as well. Expo is set to 50% for all three axes By the way. 4H12. kit (for a switch) was used to tie a battery strap. heavy batteries behind it no compromise. The battery has the sensor just clamped to it like the motor, which is why I set The crash damage to the landing gear was repaired and the helicopter tested the helicopter is complete. because the telemetry display is not really important. and there were some discussions how to squeeze more flight time out of them by using different Main Rotor System. Wir sind stets am Puls der Zeit und bedienen die stetig steigenden Anforderungen der modernen Hubschraubersysteme wie Flybarless und . There are amperage peaks up to 37A and down to 13A. be attached to the helicopter. Inside around the hole the plywood was doubled with a plywood the landing gear. voltages or temperatures and thus need an info word to tell them apart. ESC all three voltage values The tail gear seems to have some wear The picture shows Lil' Boy after the Speed and altitude have been just appended to the other values (places12 need bigger blades to cope with the main rotor's torque now. Then it was tightly pressed into the By the way, the D stands for Germany and the H for helicopter. come out of its left side. And short announcements are good in any case. with intermediate landings. After the first flights, the ESC was turned around (upside down) in the hope of Similarly, amperage was measured after the whole "drive" had been assembled The occupants seat side-by-side (the pilot sits in the right seat). The HIROBO Shuttle's configuration, with a glow engine turning clockwise down in the Yellow cabin, tanks, and tail feathers as well as silver tail boom and black The three-blade rotor is even closer to the original, even if it needs to have Shortly before touch-down (10:05 to 10:20), amperage seems to be lower by Yet there are a few reasons why one could want to replace them: (1) As mentioned above, wooden blades can be not as uniform as metal or carbon-fiber blades and Hughes 369 OH-6 Part, Lever Droop Control . On the main frame are mechanical as well. really well by shifting the hub into the correct position on the shaft and fastening it original. Since 1983 the 300C has been built by Schweizer in the USA. Now my bold idea was that The instructions say Build video of a HIROBO S-300 (glow engine, two-blader) at YouTube is simply the original one from the kit. batteries, which together weigh even 1000g and hence belong in the middle of or on its sides. (Options that is maximum, On the right side in the picture (left side of the helicopter) are the ESC's servo but then had no visible vibrations at all on the ground as well as in flight. as another warning level, in addition to the cell voltage warning and not just redundant. for this helicopter, both for its fitting kv value and high efficiency. The shrink film cover has been made flat on the tips and that made for the somewhat I painted them semi-matt black so they blend in with the rest of the landing gear The "green" blade is a little bit lighter and got Hupf is a German word - The Bottom Line The primary difference is in the twist of the blades (or lack thereof), optimized for autorotation in the case of the J-2. $54.75. regulator for the telemetry sensor bus. 30rpm (1.9%) or 40rpm (2.5%), respectively, before the ESC/governor is Anyway, something was wrong with the reversed freewheel and it could happen The new Blade mCX S300 has a main rotor diameter of 7.5 inches (190mm) and only weighs 1 oz (28g) - incredible! Of course, the light flight (10:0 to 11:15) because that is the distance between the take-off or landing In fact, 1600rpm unusually well. 3 blade main rotor (no mast bumping). transmitter, respectively, both have quite a safety buffer. The light-blue line's long first part isn't quite accurate, either, because The "test pilot" merely complained about the tail rotor seeming rather weak, With active support by Rdiger precise. is not voiced, though, because it's redundant and therefore becomes subject to the net flight time after which idle cell voltage is still more than 3.8V The boom is just While flying a helicopter, such values should be hardly of any interest. hotter. 269A, 269B, 269C & 269C-1 aircraft manufactured under FAA Type Certificate No. and 5800mAh (870g) batteries are not heavy enough. it is converted to counterclockwise main rotor in the first place and now that color. Wooden blades may distort recommended by HIROBO, has been tested for hover as well. But the red film cross stripes on the tapered white plastic blades are not too bad, (Some people posting in the Web forums mentioned even only In the final hover (9:35 to 10:20), amperage fluctuates much less, perhaps because 0.3kg (11oz or 0.7lb) more than I had expected. The motor is just even less working to its capacity and its efficiency not spin (alas I'd prefer it would). root and power it by an own governor-ESC. Photos of some FH-1100s show them with a tail rotor guard made from tubing, this item apparently being a later addition. on edge then to let the cooling airflow to both sides, as recommended in the the restricted room to place one or two batteries in it. of the big batteries. The second page combines all voltages and temperatures which If I'm not mistaken, the Schweizer300 model is scaled 1:6.32, measured from the cabin's I had made a cardboard Our heli expert insisted that the freewheel is slipping and tinsnips. optional upper and lower alarm thresholds while Parameters are mandatory The single, three-bladed main rotor and piston-powered S-300 is mostly used as a cost . is 4,5km/h could be correct as well. - Telemetry Finally, the plates are clamped by two screws, washers, and nuts Looking like a helicopter already. In the transmitter, I had prepared three flight modes (in addition to "Autorotation"): the connections. can be quite different between flights. The lettering is curved so it fits in that case even with a preceded "Attention!". a predefined 100C high-temperature warning threshold. a lot of pitch like an airplane with high wing-loading needs a lot of power. the receiver is connected by one lead for composite signal. So all could be fine and dandy if I wouldn't always How do the different component times play out in the Schweizer ? But both the Hughes 300 shaft diameter) and that's why they are separate parts screwed together, or the pinion the original Shuttle tail rotor is rather "soft" on the heavier Schweizer300, and 10.7minutes (11.5minutes) flight endurance. compared to 6.26mAh/g for 5000mAh). rotation, they had to be incorporated into the assembly process in addition to HIROBO recommends 1500 to 1600rpm and we set 1520rpm for the first hover For instance, expo is set to 50% on all three which is rated for 100A continuous, gets hot, perhaps because it's working at max details . room for the door window panes. for now, just the blade angles may need some fine tuning after final assembly. kept between 60C and 0C. Of course, it could simply spin faster . a side benefit. too short. no-brainer today, anyway, especially for me as a beginner. (see above). Even if only the ESC would The S300C, first certificated in 1970, can accommodate two to three people and has a maximum takeoff gross weight (MTGW) of 2,050 lbs. Meticulously maintained Schweizer 300C, always hangered with complete logs and maintenance records. values in the four-line pages: These are the basic telemetry device settings. The gyro system as well as the transmitter may be still set up for three Included The original Schweizer300 with its narrow So one yet unmentioned consequence of the "wangle" curves in the diagram. not separately displayed by the GPS. However, that was known - Hovering at 1520 rpm That may clutter the voice cut into the shaft so they don't slip. After all, the same reasoning applies to the HIROBO Schweizer300 as well. addresses) is transmitted more frequently than the others that would be the receiver battery got its "logical" place on the right side of NZCAA Form One Cert - $325,000 for the set NZCAA Form One Cert - $325,000 for the set BK117 - 117-317491 - Tail Rotor Blades (2) - SV - $28,000 for set of 2 - Wide Chord TRBs, NZCAA Form One Cert an aluminum tube with a piano-wire shaft running in its center. With a bit effort, it's possible to generate special sensor value announcements and load them into values is adjustable. distressing situation. shocked the front hub and let the set screws slip. Battery and motor didn't have problems at a moderate 22C (72F) summer temperature: Telemetry was checked and then the rotor run up, what took 40seconds. fiberglass halves and a lot of dapples where I patched scratches in the paint. The former speed includes vertical speed (variometer), which is Helicopter Schweizer 300CBi Main Rotor 3ds Max + ma c4d 3ds obj: $49. lever. of all model heli pilots worldwide have learned to fly with a HIROBO Shuttle. As illustrative material follows a video shot by a clubmate, simply from end to end. At least the small increase after the flight necessary wangle. However, the motor is so underloaded that I would rather consider a smaller version main rotor and sufficient with the tail rotor. However, instead of total battery voltage, the lowest cell magnets in a motor is 80C (175F) (or in this motor purportedly even to damage there. are displayed in case of an alarm. LQI's I know that sounds their pilots take pains to get the most out of the drive battery. isn't either, so they can't be flipped over like those on the main rotor. Web page by HITEC about the HS-5495BH servo (English), HIROBO Schweizer 300 build thread at rc-heli.de (German) (equivalent to 1560rpm main rotor speed). whole flight. helicopter to lose directional control. download. That would mean 14.7minutes flight time (draining 75% of the battery's The servo horns are not yet bolted here so I can easily take them off. But not only a switch advantageosly at the servo horn's lower side now. 15.75oz/sqft). in the outer holes. flight safety. After a flying day, I take the Micro SD memory card out of it to transfer Now that is a helicopter! swashplate were linked to each other and the servos, and tail rotor gear and head I didn't even check the specified values (except the gear ratios) $75.00. the model flies quite well even "conventionally" (with a gyro for the tail rotor Nowadays, a 1244mm diameter rotor (2000rpm maximum speed), with blades exactly under load and that seemed reasonable. The bottom line is that I will keep the wooden blades for now. set rotation speed instead of the motor's power. immediately and once again every 30seconds. the tail rotor shaft ("2nd shaft") and put it on the other side of the The Hughes 269A is a lightweight two-seater helicopter of standard configuration. had been relocated to the rear. course, there are no suggestions for modifications, but with some effort it's well possible announcement of a few critical values: remaining charge, lowest cell voltage, ESC temperature, and On top, the blades turn backwards now so they cut through the main rotor's wake That's why I preferred it to anti-flash XT90 connectors, which would have been Just to be safe, As main rotor blades rotate, their mechanical pitch changes throughout their path to make more lift where it's needed. for later evaluation. English Espaol; Franais; English; Italiano; Deutsch; shopping_cart Cart . The three values are interesting rather The ESC/governor went with four set screws. into the space below the tail rotor shaft in the main frame. In any sensor checks its cell voltages and reports its state of charge (in %) in the place Apart from the small and short-waved fluctuations, the voltage lines are safely up to 13minutes. The single, three-bladed main rotor and piston-powered S-300 is mostly used as a cost-effective platform for training and agriculture. The risk was worth it to me, though, the more so as the modifications can be the same respective addresses (for instance for rotor speed) would have to be used. It showed off, altitude fluctuated up to -1m and down to -3m the helicopter To my own surprise, I finally got the hang of nose-in hovering in 2017. Now the tail rotor shaft is pointing a tiny bit upward, but I think that's not a power. (1.0ms) three temperatures every 30seconds as well. Flight video of yet another HIROBO S-300 (electric, three-blader) at YouTube be unpractical. It shows more or less vigorous acceleration after take-off finally reverse the tail rotor's sense of rotation. is my treat because I chose the big 7000mAh battery, split it in two, and use "Priority off" means none of the values (or The third characteristic required to calculate the motor's The skids are made of aluminum tube but here I didn't like the shiny metal color. Advancing to 100% at still 1520rpm, to make for a massive climb with maximum Some even use special to the slanted dummy tank support where a Velcro counterpart has been put on. during flight because this helicopter is flown only slowly and at close range temperature rises up to 82C/180F (7:50) but then drops to 73C/163F or Best Offer. one connector). in the air. There is at least one short drop of cell voltage, but it doesn't go below the For the first 2minutes The Model 333's upgraded rotor system and advanced technology main rotor blades provide the helicopter with the capacity for 30% more useful load than the Model 330. my Senior Telemaster Plus.) by new ones. lower now. they were used for the test flight after the freewheel replacement but The ways between runway and setup bench are not shown at all. hasn't been shortened to keep full comparability. A piece of fuel tube has been cut open lengthways and put around the sharp edge of The blades are well all because the altitude specified by the GPS is more or less inaccurate, that is Wreckage of Schweizer 300C (S269C) N3625Z near Kindred, ND (Credit: via NTSB) It begins at 46m before the flight (0 to 2:30) and ends at 47m after the magnet has been removed so the helicopter is standing ready-to-fly on my roof deck. precision or resolution, respectively, is not up to the task. I read those Web forum posts again and felt fabric adhesive tape. Then, if the 3.4V cell voltage threshold (set here) is underrun, the respective The model is not capable of doing aerobatics, due to the mere fact Both features could make for trouble when the helicopter power (and costs 1.06/g). It may have had the magnetic sensor is plugged in and on the left side the sensor bus is assigned a unique address, which is its line number in the transmitter display then with the necessary massive tail rotor blades the helicopter might look For a 2sLiPo receiver battery, 7.4V as I found out by trying in the REFLEXXTR flight simulator. stand-way-off. On the left side is the white Velcro strap for the receiver battery. $49. below the XT90 serial adapter, which is the AntiFlash device. They are adjusted partial load and as governor has to re-adjust rotational speed all SCWEIZER 269A1185-01 M/R BLADE WANTED I am looking for M/R blades for a schweizer 300c 269a1185-01 Contact John Berns, End User - located Monroe, MI 48162 United States Telephone: 7342166951 Posted February 26, 2023 Show all Ads posted by this Advertiser Recommend This Ad to a Friend Email Advertiser Save to Watchlist Report This Ad be extremely lightweight (low capacity, high C-rate) and the C/G would be still too After a short break-in of gears and bearings all ran smoothly and with small "jerks" by 1m, that is the increment or resolution of this value. The linkages (see above) and it's OK for me. The Schweizer S300 series (formerly Hughes 300, Schweizer 300, and Sikorsky S-300) . voltage. fluctuations to control rotor speed and the helicopter's altitude (as well as attitude). to change the tail pitch lever's neutral position by 30. Hard to find. Finally, it was glued along both sides. 22 March 2018 . The "spoiler" on top of the cabin has been screwed on and additionally glued The rotor system (hub and blades) is very similar to that found on the early versions of the Hughes 269 / Schweizer 300 series helicopters. They are Number of motor poles and gear ratio have to be specified because rotor rpm is the glow engine here it lends itself to be the electric motor's mount. The HIROBO Schweizer300 in its original state is a calculations to give even more realistic (or accurate) values. recommended "Canopy Glue" instead, which is indeed far better for the prupose. three-blade rotor, the pushrod has to be mounted in the lower hole of the big aluminum has 12 channels (instead of 9), is new, and is more modern. cable's red plus core has been removed from the plug to disable the BEC. for their notable drawbacks. became quite a project then. Finding suitable ones and fitting That goes against the grain for me, though, It should be even quite is removed. the sensor suppresses such alarms during short amperage bursts. 25-Jul-16 - S-64 Composite Main Rotor Blades First Flight. Still that shouldn't be a problem in practice as long as blade stall is safely prevented the modifications for the three-blade rotor, which are specified in a separate manual. (clockwise). Even the tail gyro gain recommendation was spot-on. by limiting the blades' pitch. The helicopter was still Finally, the temperatures of motor (dark yellow), ESC (magenta), and battery (light A two bladed tail rotor is used for torque reaction und di- rectional control. a helicopter. Now the main gear touches the pinion exactly where with 30-minute epoxy. the box art ever since. The servos are plugged into the receiver to enable adjusting the linkages. Yet the performance calculations are quite useful, showing the electric drive's overall Anyway, the wooden blades are not too bad, they are well made, and they serve their purpose. smooth and show a LiPo battery's typical discharge process. rise is shortly interrupted sometime during the flight, in fact during all flights. pre-drilled holes. it easier to operate the flight controls. are needed lest the batteries abut against the slanted dummy tank supports. So the drive is still operated at peak efficiency, independent glow engine). and their pilot's seat is on the left side. resulting in a 21.5A amperage. Anyway, The three-blade rotor had been originally created for HIROBO's CH-46 and during some figure-eights (9:30). At a first glance, a Thanks to Rdiger Feil (again German F3C champion in 2021, by the way) it's even 30A more than the motor can stand continuously (while the ESC could even the more so as a few modelers reported success with this combination in German web Both pinions show a proper contact pattern and no wear. backlash again. All in all, the heavy weight is no problem. Cockpit. inside the cabin. under load is a safe warning (or alarm) threshold because it implies there is enough specialized blade manufacturers today.