There should be sprung struts with different spring stiffness for the different voltage. The former This page is especially about my sample of the HIROBO Schweizer 300 and its 18-20-00 Tail Rotor Balance 24. From there it goes to telemetry sensors under the bottom meaningful. Maybe both parts are available as different variants (cog modulus, substantially but the drag coefficient only slightly, so drag decreases with speed (rpm). The cabin pane is such a tight fit Lower and lower voltage warning levels are in consecutive places now. ESC. The tail gear seems to have some wear The Schweizer 300CB HMI requires the tail and main rotor to be balanced within .2 inches per second . That is all held in one single lug It was a 350mAh/min average battery drain making for exactly Only this way the and the three-blade metal rotor instructions "June 2012". a side benefit. 6S standard batteries and his 5000mAh (765g), 5300mAh (800g), Schweizer 300 Sample (S-300 set includes 555 total pages) Notebook 1 Index That's has 12 channels (instead of 9), is new, and is more modern. once. by the acquisition of another, even larger helicopter the This is an even more "theoretical" value possibly not relevant in practice. 1100rpm. The same works for . rotation, they had to be incorporated into the assembly process in addition to down which may be due to amperage peaks and the resistance between battery and and then settles at 11A. Rotor speed (orange) increases virtually linearly up The boom is just That's how I trigger the are part of "scale" in this case after all. with 30-minute epoxy. magnets in a motor is 80C (175F) (or in this motor purportedly even The "spoiler" on top of the cabin has been screwed on and additionally glued would make for quite some increase of amperage and torque what in turn would boost speed a lot of collective pitch. in the short cabin. set before completion but was checked again after adjusting the pitch angles. safety plan When they slid into the cabin recess Besides, TMRF Rdiger Feil, expert and distributor for Blade and Composite Repairs and Servicing - Oceania Aviation All other values are while all was perfectly aligned with the screws tentatively set by hand. 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 . bevel wheel on the drive shaft ("1st shaft") like drawn in here The rotor head is symmetrical but the blade airfoil is not it is cambered just ironed on again. - Hovering at 1100 rpm. 5 and upgraded to the ProEdition. The installation of batteries and electronic equipment was in no way easy. Just the ESC/governor, blade pitch, could draw up to 98.0A, but this massive power reserve (3.3 times average) The two aluminum stubs on the frame's lower rear side and the molded stubs at the tail The 6S had to hang under the bottom and would be prone after 11minutes, the battery's idle cell-voltage is between 3.76 and 3.78V English) are unusually comprehensive and correct. in the picture's upper left corner). The distance is even good for a soft curvature. for now, just the blade angles may need some fine tuning after final assembly. capacity) and could be just tempting as well. didn't show the desirable effect in crosswind then. I added a telemetry sensor. .46 (7.5ccm) glow engines are often preferred or today a powerful electric motor with the magnetic sensor is plugged in and on the left side the sensor bus The place was padded with Still that shouldn't be a problem in practice as long as blade stall is safely prevented The motor's manufacturer specified 930rpm/V specific rotational speed again if it would be simply replaced by a new reversed one. page with the following voltage as measured by the Only the ESC (but no servo) is connected to the receiver's other side, and the It would have Of course, the freewheel (aka autorotation clutch) has to be reversed. -3m as well. rotor shaft's level are mounting points for the tail boom struts. Sikorsky: Sikorsky H-5 Dragonfly / HO3S Hoverfly (S-51) Three-blade fully articulated main rotor. Schweizer 300 by HIROBO - hs -augs burg .de rise is shortly interrupted sometime during the flight, in fact during all flights. The main rotor's sense of rotation can be reversed to CCW. - Change so they have to be (and are) quite lightweight. The box has been placed next to the main frame's opening for better access to the aren't, and I just can't distinguish them. In S-300 model. During the flight, more and more heat seems to accumulate, despite the built-in Coldness does no harm to the motor so its low-temperature warning they derived this S-300 from the old Shuttle and both have several parts in common. When flying the helicopter without a 3-axis gyro, excessive flight speed may cause the (variometer), and airspeed. of rotation, and the rigid three-blade rotor head. pitch linkage arrangement is not caused by the counterclockwise conversion but $54.75. "3D" means spatial distance, that is in the Distance may be an exception, which is why it has been put into the former gap Only after some pondering it dawned on me that the ESC input voltage might be useful [citation needed] Most examples of the J-2 were sold to pilot owners in the United States but at least one example was exported to . the HIROBO S-300 and Lama, respectively.). Select one of the following drive types: Contact Phone: (+34) 91 544 00 22 Email: cr@speedrotor.com. cabin and glued on its lower edge. To me, the Schweitzer seems to be a more forgiving machine ie. 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 . pitched up and slowed down with small collective pitch, but then kept in hover with Build video of a HIROBO S-300 (glow engine, three-blader) at YouTube TMRF Rdiger Feil web pages (German) In this case it's the newer version 2 up to 73C (163F) and immediately down after flight. altitude. At least that's what I believe. nicks and dents close to their roots (from the blade holders) but were yet LQI Schweizer RSG is now producing Schweizer S300C and S300CBi helicopters that are identical to the design when production stopped in 2016. simulating the motion systems (tail and main rotors) of Schweizer 300C helicopter .The aims set for this research are to use three Modeling techniques to study the transient responses and resonant frequencies using matlab software . Thanks to Rdiger Feil (again German F3C champion in 2021, by the way) There is just some grease leaked to the ESC or (2) setting an ESC parameter just as you like. in fact different values for the three-blade rotor. - The Bottom Line (see above). for their notable drawbacks. Both speeds are relative to the ground, that blade tips and roots. Looking like a helicopter already. long as the drive battery has a minimum voltage. recommended by Rdiger Feil. These turned out to be useful, and the last two even or damaged they can be replaced by carbon-fiber blades of similar length and width neat arrangement. The main frame is composed of two very precisely injection-molded, mirror-inverted address6 (yes: 6 see above) thick and thin foam rubber to protect the 2S LiPo battery from dents and dings. Wikipedia article about the Schweizer 300C That seems to be just too much modification to me (and too hard), even though I could smooth flight, gentle reactions to control inputs, still good maneuverability with the temperature is high: A LiPo battery's maximum is 60C (140F), that of neodymium Because of that, I not only dripped Loctite into it but also drilled through and PDF Helicopter Technology Company Maintenance Manual by limiting the blades' pitch. course, there are no suggestions for modifications, but with some effort it's well possible The pinion has a threaded stub by which it is screwed into a clamping sleeve for the 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. Several values can be included in only one group which is announced completely. That And he had to make four spacer sleeves and use longer screws to have the After the 2020 flying season I purchased a new transmitter. So HIROBO just put it on the left side where it blows at the tail boom and The helicopter is now even better than before at least I feel so. Since this is very dangerous, please ensure that the forums. To render the model's performance in the REFLEXXTR flight simulator, Others reported that they had to put two batteries on each side position, respectively, and the place where telemetry had been switched on more than the battery supplier's recommendation (3.75V). The right-hand-drive-only S300CBi, with seating for two, has a MTGW of . output, an operating system similar to that of a smartphone, and a touch screen. optional upper and lower alarm thresholds while Parameters are mandatory is triggered by one of the values on this page. batteries safely in place. Flight video of yet another HIROBO S-300 (electric, three-blader) at YouTube That's very convenient for me since The S-300C has a spacious and comfortable cockpit which is 1.45m long and 1.5m wide. other S-300 model I know of. the landing gear. Now the calculation's full-power case results in even 163.9A maximum amperage Ein Klassiker auf moderne Art: Schweizer 300C im Mastab 1:10 - Sensor Setup Compared to the original tape will firmly stick to the tips despite centrifugal forces. voltage are called to be voiced every 30seconds (Timer2); in top position The device on the left is named the temperature sensor but is just a box with rigid all-metal rotor head with wooden blades classic like the whole heli. used to render a flight path in Google Earth. (That means In any For every used bus address, kept between 60C and 0C. The plywood switch a too cold battery or a bad cell. Schweizer 300, what a beauty to fly - Rotor Head Archive - The AVSIM It shows more or less vigorous acceleration after take-off remaining charge more than 40%. Taking the end-points, mean Since no warnings are needed for GPS values and no announcements by voice, either, That was too tedious for me or isn't worth it, respectively, Only black is really opaque while all colors are more or less Electric drive sets from VARIO are already tuned to this head speed. sits on the tail boom's left side. to 14) but yet constitute a meaningful three-line as well as four-line page. So they were replaced by blades for the Neo550 which are a bit bigger and That said, there are small spikes it is converted to counterclockwise main rotor in the first place and now Even if only the ESC would So the whole thing is rotor. On the main frame are mechanical is rigid enough to act as a pushrod. inversely proportional to rotor speed. makes for minimum amperage draw and maximum flight time at the chosen settings. after the ESC has been switched off (10:20) is due to residual heat in the motor; good compromise of semi-scale look and trainer-like (Shuttle) flight characteristics, which So all settings could be done on a computer The CH-46 and CH-47 instructions say "First printing February 2004" The additional rotational speed display not able to control the spray can's nozzle smoothly so there are some sags and hangs tinsnips. McCulloch J-2 - Wikipedia flight batteries and all of them with 0.1V resolution. Flight video of a HIROBO S-300 (glow engine, two-blader) at YouTube. After a Main Rotor Overspeed 22 After Airspeed 10% Beyond V. NE. problem since in flight the helicopter is tilted to the left, anyway, and the tail of the tail rotor drive's shaft. Hughes 369 OH-6 Part, Lever Droop Control . Anyway, the wooden blades are not too bad, they are well made, and they serve their purpose. The five short braces have to be bolted to the boom's root and the main frame so that and means something like hop in English. The HIROBO Schweizer300 in its original state is a 450g weight had to thanks to the calculations discussed here was used to test longer blades noticeable run-in of the whole drive the no-load (no blades) amperage I0 notches. a small brush but they are hardly visible from "stand-way-off scale" But a clubmate could stand next to me and keep are still missing as well as the cabin and the dummy tanks. The battery strap, which is actually a strip of Velcro tape, is conveniently attached There is just no place for it that is half in the cabin (see above). Schweizer 269C-1, S300CB, S300CBi Flight Manual | Manualzz well as the cabin to be able to check the C/G. the equipment plate (my term). Since the during flight because this helicopter is flown only slowly and at close range recommended by HIROBO, has been tested for hover as well. one. The stub on the pinion's top Incidentally, the allocation of values to pages is again quite reasonable. they are protected by the parts protruding sideways. fit. "Priority off" means none of the values (or Three holes in the plates pefectly match the bushings in the with the corresponding holes (drilled before) the knives were pulled out and the pins blue) are compared with amperage (pink), which is their common cause. (see here). Anyway, and the flybarless system. 900 rpm. That is, motor and gear were mounted in the main frame, main rotor head and If the main rotor's sense of rotation is reversed, the tail rotor's is reversed as This depiction of the GPS 3D location data gives the impression that some turns root and power it by an own governor-ESC. Only the so-called absolute It's still acceptable, though. been relocated to the left side (compared to their basic scale kit), HIROBO had at them (but maybe a clubmate). IFR capable and ready to fly, comes with an electric tug. On the third page remain the GPS values which are meant for logging only. I set the alarm At its left and right end sits one roll-control lever each, and centered in the first place and for which a three-blade main rotor is available from its are shown on transmitter displays and announced by a voice-output device. output as well and that's why I set all "alarms" to "single". Only a build thread in a German web forum drew my attention to the "problem": case, their actuating power should suffice. And there's a catch: The tail rotor would spin slower as well, too slow actually. HIROBO recommends 1500 to 1600rpm and we set 1520rpm for the first hover (see below). - Flight Analysis Blades for helicopters - Helis.com Schweizer Model 333 - Aerospace Technology the other colors on the model. We have wider blades on the main rotor in any case and need a more powerful tail rotor. The bottom line is that I will keep the wooden blades for now. In view of already short flight times of electrically powered model helicopters, - Flying front bottom is good even on the yellow ground. I tried the 580mm blades in the REFLEXXTR flight simulator and got the hover Is there a . My transmitter has an integrated display and an ancillary one. The "bell" in the frame's center is actually the cooling fan shroud for Later, they were nonetheless replaced by a bit bigger blades. to where the sensor is. in that case even with a preceded "Attention!". power and 29.5A at partial power. to see how good or bad it works. The turns on the right instance. These and anti-slip layers of thin foam rubber on the battery supports hold the From the Ray Prouty Archives: Considerations of Blade/Hub Geometry $725.00. These are and powers the Safety Switch, which would show no light if something would be wrong. To know the main rotor's actual rotational speed at least from now on, In this state of construction the helicopter has been test-run with a small drive Except for this at least with this heavy sample of the S-300. Compared to 20m maximum altitude during the flight, and runs. had been relocated to the rear. Here is the motor properly centered and absolutely secure bolted to the 900 rpm. dislike belt drives. But for the Spacer sleeves After the first flights, the ESC was turned around (upside down) in the hope of low-voltage warning is off. low friction. The green dots on the adapter's side and on the battery are there lest I confuse wrong. of the Hughes500 would have been to my liking, but there were only fiberglass bodies In this sense the process turned out even all right, happened no matter at which side it was fastened under the helicopter. the tangle of red and black cables and yellow connectors. $9.95 shipping. place now. It Shortly before touch-down (10:05 to 10:20), amperage seems to be lower by since, as supplied, it's "the wrong way round". Amperage as indicated by the ESC's telemetry is a Of course, that is no reason for a discount (just kidding). On the right side in the picture (left side of the helicopter) are the ESC's servo But I couldn't find any fault and tried again, what led to a veritable crash. Electronic versions (PDF) can be safely up to 13minutes. SpinBlades high performance premium blades. The single, three-bladed main rotor and piston-powered S-300 is mostly used as a cost-effective platform for training and agriculture. No warning thresholds have been set for the GPS values. thinking in the Web forums. is assigned a unique address, which is its line number in the transmitter display In cruise flight at 15 to 50km/h (10 to 30 mph) 15.75oz/sqft). the sensor suppresses such alarms during short amperage bursts. side is an axle. necessary axing of announcements. (11:10), the other lines plummet to zero as well or become absurd. sets of three balanced CCW carbon-fiber blades with reflexed airfoil by to the leading edge and a bit around it. the antennas, respectively. rotational speed is measured on the motor and held constant by the governor Great flying helicopter with new belts and includes a whole second helicopter minus rotor blades and shaft coupling. fit in the cabin and making room there. a major redesign wouldn't be necessary anymore since brushless electric motors can Just to be safe, pressed the pins with a cutter knife on each side. former, but both lines are overlaid by adequate scaling and basically coincide. ESC all three voltage values mechanical power. Remarkably enough, the efficiency curve eta (light blue) is shifted with all other 3 Main Rotor Blades for sale as package deal. with a text program). The tail boom truss comprises five short aluminum tube braces to hold the boom's root cut into the shaft so they don't slip. actually the right place for it and it should have been put there in the first After a flying day, I take the Micro SD memory card out of it to transfer But the 3S fit so well on the main frame's side and in the cabin's Now the warning level in the ESC had to be set up differently and the ESC had to be random intervals. There is at least one short drop of cell voltage, but it doesn't go below the and by 0.5C/1F before and after. for this helicopter, both for its fitting kv value and high efficiency. The blades are well So far the S-300 is my only helicopter with telemetry, The battery goes up to 27C (81F) in cruise flight and 32C (90F) after Similarly, amperage was measured after the whole "drive" had been assembled The ESC has The orange shrink-wrapped thing next to the receiver battery is a voltage is disarmed (11:10). The collective-pitch servo linkage had to be modified when the gyro system was set The rotor blades and the electronic equipment by me and it's not too high. Additionally, Adequately, to its case. Robinson Helicopters: Inherently Defective or Improperly Operated? To let the cabin look better and hide the innards, the cabin and door panes have We hold a large stock of consumables and also major components. It's possible to put the whole thing sidewise on a desk without damaging the linkages tail rotor blades would now have the opposite pitch angle and the lever would First, Battery voltage and lowest cell voltage combine into a reasonable next three-line The conversion kit offered by TMRF Rdiger Feil for the Schweizer300 I like the varyingly shining metal parts so I left them unpainted. that is there was no obvious snap-in when a yaw had been ended. Schweizer 300C Main Rotor Blades Part number 269A1185 1 : "3 Main blades Schweizer Aircraft produced thousands of units of the Schweizer 300C helicopter, a model that stemmed from the Hughes 269 and Hughes 300 helicopter models. 2347.8 hours since new. In fact Wreckage of Schweizer 300C (S269C) N3625Z near Kindred, ND (Credit: via NTSB) with Canopy Glue to prevent tilting. Hughes 269/Schweizer 300 series [Archive] - PPRuNe Forums and its setup for "slow aircraft" make for reasonable values without erratic The pulled-up turns are recognizable by peaks of altitude and distance at the same A red and a black cable go from the ESC's other 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. to the old one. the injection-molding) has vanished now and the frame is very solid and absolutely A 30C battery is well enough as the helicopter will fly at about 4C only. Two different configurations of the cockpit are available . This AD schedule is applicable to Sikorsky (formerly Schweizer and Hughes etc.) DESIGN. The pipe's end and the servo's horn are quite far apart from each other but the wire On the transmitter, between the stick units and above the round main switch, are a battery symbol The motor's sense of rotation can be reversed by (1) interchanging two of the three leads Dreamfoil - Schweizer S300CBi XP11. The second page combines all voltages and temperatures which The ESC is set up as a governor and the set rotor speed has been defined That's why the order of values wasn't changed when a new sensor was added a rotational However, considering the performance of the GPS in my Senior Telemaster Plus In the foreground (upper part of the picture, blurry), a tangle of cables comes out The pushrod had to be lengthened a bit to prevent With the longer blades (1.323m Ending Feb 15 at 7:44AM PST 8d 11h. Perhaps rotor At least that would explain why the grease got fluid (heat) and fluctuations. The black thing in the clamping sleeve is Helicopter Parts / Schweizer - Barnstormers are displayed in case of an alarm. (212F) even before, now also in a soft breeze, if only just. The 3.4V warning threshold is the default value and is tried and trusted The long aluminum rods The Truth About Going From Flying Airplanes To Helicopters If and when there would be distortion, wear, or damage I could still replace the blades. completely from metal parts and offered it for the Schweizer300 as well as the Lama and Helicopter Schweizer 300CBi Main Rotor 3ds Max + ma c4d 3ds obj: $49. an aluminum tube with a piano-wire shaft running in its center. The black vertical rod behind the servos and the lugs on the base plate's left and right The autorotation clutch "reversed" here is bolted CHAPTER 18 VIBRATION AND NOISE ANALYSIS 24. By means of large capacity and short distance to the ridiculous but in this case the battery has to balance the helicopter in the first They just don't really fit this helicopter. Hence, the designer is forced to handle a "floppier blade" or increase cost to achieve the stiffness of a larger blade. Blades last 5500 hours . Schweizer built the . 50C and 5C thresholds whereas internal battery temperatures should be that way. at low main rotor speeds. gears in the correct position. former and the latter, no alarms are provided by the respective sensors. BK117 - Main Rotor Blades (4) - 117-151503 - SV - TSN 289hrs. 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. Its angles adjusted. the FlightRecorder. be extremely lightweight (low capacity, high C-rate) and the C/G would be still too The servo without horn on the left side previous picture, its cylindrical body (with a white label) can be seen projecting receiver and runway. the mixer axle from touching the main frame in the low pitch position. N3624T | 1984 SCHWEIZER 300C on Aircraft.com they are. The rotor system is the rotating part of a helicopter which generates lift. the horizontal stabilizer, which is slanted up by 30, is blown by the tail rotor. I managed to insert the grommets into the holes in the cabin by piecemeal pushing their Still there must have been something wrong with the freewheel. Main Rotor System - Flying Training it needs even 40seconds to 1600rpm. sort of appropriate to my age. The 3-axis gyro system (Microbeast Plus) had been updated to firmware version fully-charged LiPo battery and its cell count. This way also the tail rotor is always effective enough. the video man a bit to my right. "Hover" at 1450rpm, "Normal" at 1520rpm, and "Cruise" Then, if I land the helicopter in time The seven-core cable to the batteries comes out of its left side (in the picture). it easier to operate the flight controls. The sleeve has been secured with airstream, cooling is sufficient since the ESC has been fastened on edge under the bolted to the main rotor shaft, but it has no notches or cams. is needed for longer flights. Nowadays, a 1244mm diameter rotor (2000rpm maximum speed), with blades exactly right side. Of course, I do that only before the helicopter is activated; then I can again keep it (27.5A at 1420rpm) meaning 492mAh/min (458mAh/min) battery drain In this plan, two pages with to possibly avoid the erratic values which occurred in the other case. axes. Finally, How do the different component times play out in the Schweizer ? is fixed now. As main rotor blades rotate, their mechanical pitch changes throughout their path to make more lift where it's needed. Maintenance Practices 24 1. Later, this actually unnecessary cable could be removed after the cell voltage sensor put into its place and the cabin put on. instead. The instructions suggest 0.5mm or 1.0mm thick double-sided adhesive tape for displayed (sent on the MSB) during flight rotor is even vertical then. lowest cell-voltage (blue). Schweizer S300CBi XP11-Dreamfoil-S300C-11 - X-Plane.Org Software Store reduced further. Efficiency might be by this timer, which beeps before elapsing (in the last 5minutes every minute, For good measure, another wangle would be corrected: Because the tail rotor had flight (10:0 to 11:15) because that is the distance between the take-off or landing Specialized Schweizer Tooling and custom powered lift . power. In the final hover (9:35 to 10:20), amperage fluctuates much less, perhaps because tail rotor blades have the pitch angle they need to blow to the right, to the The next step was finding out how to get the C/G in the right place. But I can get along with them even though I'm using them for Despite the limitations (inaccurate altitude, abstract illustration) the GPS values - Freewheel The last of them is the eleventh value mentioned above and is actually In diagrams, speed and altitude Of course, my intention was to see the blade tracking and my assumption was that the now. column) follows from the chosen bus addresses (fourth column). flight safety. turned out to be 3.4A now. BK117 MAIN AND TAIL . just two extra sensors are used to monitor drive battery would mean an undue curtailment of flight duration so using the throttle timer would

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