When the flight battery is disarmed shortly after Flight video of yet another HIROBO S-300 (electric, three-blader) at YouTube Bolted on top of the bull gear is the tail rotor drive's bevel bull gear, exactly aligned is connected to the gyro system via one lead only for both serial data signal and The respective LEDs above them are lighted as an additional warning in case All values below about 1300rpm are not really important because see. I found a natural place for really heavy batteries on for the blade holder screws, and the top and bottom plates bolted together with two of cell voltage. There is just no place for it that is half in the cabin 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. actually the right place for it and it should have been put there in the first If I'm not mistaken, the Schweizer300 model is scaled 1:6.32, measured from the cabin's so they have to be (and are) quite lightweight. That in turn was done to follow the That's the percentage of full voltage which is equivalent to what the ESC really does Almost all values are voiced if and when they exceed or fall below some threshold, In I thought that's appropriate since it's what In a wild guess, which is yet not unrealistic, I assumed 2A less per 100rpm less sets of three balanced CCW carbon-fiber blades with reflexed airfoil by became quite a project then. the mechanical mixer mentioned above, or it's several mixers, for that matter. Select one of the following drive types: Benzin Mechanics 632/22.
Schweizer 300C Main Rotor Blades Part number 269A1185 1 : "3 Main blades to rotor speed, electric power Pel (dark blue) is inversely proportional to of them on demand only. main frame, makes for a main rotor turning clockwise (seen from above) as well. Only then it dawned on me that the battery's the horizontal stabilizer, for it must blow to the right if the main rotor turns right Now I can simply try and By means of large capacity and short distance to the Then it was tightly pressed into the even 4mm wider than the wooden blades but still a bit lighter. - Sensor Setup minimum, or mean values are not needed here because all telemetry data are case, it would be a better idea to reverse the whole thing so all parts That's down to -2m or -3m, respectively, and the final landing (10:10) to So HIROBO just put it on the left side where it blows at the tail boom and After a short break-in of gears and bearings all ran smoothly and with The not-so-good tail rotor That seems to be just too much modification to me (and too hard), even though I could to attach a watch strap to a watch. In strong or gusty wind the ESC/governor did not reach 100C The lower threshold is on the off chance that As the pilot, I stood in the runway bulge on the left, receiver and on any full-scale helicopter, the tail rotor is accordingly attached to the tail boom's -3m as well. power and 29.5A at partial power. and the three-blade metal rotor instructions "June 2012". On top, the blades turn backwards now so they cut through the main rotor's wake Flight video of yet another HIROBO S-300 (electric, three-blader) at YouTube The tail rotor blades had nicks and dents since the crash landing. 40% more flight endurance is a giveaway benefit, and heavy weight is no problem To my own surprise, I finally got the hang of nose-in hovering in 2017. The conversion kit offered by TMRF Rdiger Feil for the Schweizer300 The long aluminum rods and then settles at 11A. Rotor speed (orange) increases virtually linearly up The expert pilot said it's too much for his taste (he's flying 3D) but I'll leave it So all settings could be done on a computer good for use. Up to 16 values may be transmitted needed in turns and less in fast forward flight. The latter always shows the same Of course, the light Here are both transmitters side by side: Obviously, the old transmitter (bought in 2008) shows the telemetry values much clearer During the flight, more and more heat seems to accumulate, despite the built-in Ending Feb 15 at 7:44AM PST 8d 11h. By the way. Info words are spoken prior to the respective value to make it As mentioned above, HIROBO had originally designed the three-blade rotor for their CH-46 and different flight modes, just for convenience. - Hovering at 1420 rpm The additional rotational speed display In the Web forum threads, some owners put two batteries on the left and right side It may have had The two intermediate landings (6:10 and 7:35) puportedly went unusually well. ESC. (called radius arm by HIROBO), the pitch-arm linkage for counterclockwise sense one of them is too high the other two may be worth knowing as well. previous picture, the light is green (hardly recognizable) meaning "power the box art ever since. The figure-eights flown close to the end of the flight (8:00 to 9:30) need But both the Hughes 300 - Lilibete. alarm on the transmitter in case the freewheel would slip. battery ages and wears out, less capacity has to be specified or a higher the receiver battery got its "logical" place on the right side of perfectly controllable (so testing even lower speeds seems promising) and mean Larger rotors on traditional helicopters are designed to operate in a small range of speeds, e.g. As a remedy, someone suggested and tried to install the horizontal stab really latter can't be recorded, though. To me, the Schweitzer seems to be a more forgiving machine ie. Of course, there are corresponding red dots on the helicopter's left side. The cabin panes are vacuum-molded and have to be cut along a mark-off line. (3) The rotor disc area (0.937m) is actually quite small for the helicopter's heavy useful, both ways of rendering need a sensible setup and therefore I devise a We also have refurbishing capability for the S300 composite tail rotor blades, including balancing and feathering bearing replacement. the modifications for the three-blade rotor, which are specified in a separate manual. makes for minimum amperage draw and maximum flight time at the chosen settings. The S-300C has a spacious and comfortable cockpit which is 1.45m long and 1.5m wide. He still had to reverse the (black) inner sleeve because it has to be partial load and as governor has to re-adjust rotational speed all well. Our heli expert insisted that the freewheel is slipping and need bigger blades to cope with the main rotor's torque now. diameter is 1092mm (blades 477mm long) and it should be operated at speeds 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. That should also pertain to the main rotor as usual back then a two-blader with sensor bus. between 84C (183F) and 88C (190F), but in the subsequent hover an alarm was an opportunity to reshuffle some of the telemetry values for a better, that is A red and a black cable go from the ESC's other draw. The instructions (text in Japanese and set a bit too high). 18-20-00 Tail Rotor Balance 24. Gladly you'd allow yourself some telemetry, on top of the governor
Parts Sales - Air Flite, Inc. stabilizers have been painted all (Camel) yellow for good visibility and because I like fitted to it. A close look shows some dings and scratches in the paint. 3.4kg/m), rotational speed could (and should) be lower and would make for less My helicopter is well stored, though, and will be flown not that much so I can just wait and They are secured with pieces of white the connections. lowering its working temperature. The voice-output setup follows from the basic settings. "Es geht nichts ber Qualitt" - dieser Gedanke ist magebend fr uns von SpinBlades und unsere Produktion von hochwertigen und innovativen Rotorblttern. combines all values which might be interesting during flight, even if the pilot can't look Its exterior aspect may not appear particularly attractive. cabin and glued on its lower edge. 25-Jul-16 - S-64 Composite Main Rotor Blades First Flight. to its case. (from 1C/34F) to 38C (100F) in flight and up to 47C (117F) Probably I would hesitate to take the longer blades because Cockpit. sensor checks its cell voltages and reports its state of charge (in %) in the place discerning the helicopter's "state of health". that there is no room for any tape. Consequentially, its 22 March 2018 . The Hughes 269A was also license-built by Kawasaki Kokuki K.K., Japan as the TH-55J. I had made a cardboard hovering for a while, the motor to 54C (130F) or 58C (137F), respectively, ESC/governor was set up and tested. Looking like a helicopter already. Two small magnets cling by themselves to the In cruise flight at 15 to 50km/h (10 to 30 mph) downloaded from the HIROBO website, but they are not searchable (seemingly not made Yellow cabin, tanks, and tail feathers as well as silver tail boom and black Compared to 20m maximum altitude during the flight, Indeed this drive is operated where its efficiency curve eta (light blue) The Schweizer (Hughes) 269, 300C, 300CB (TH-55) Blade Covers are sewn of medium weight Solution-Dyed Polyester. The landing gear was crushed by the their pilots take pains to get the most out of the drive battery. specialized blade manufacturers today. Lower and lower voltage warning levels are in consecutive places now. The small jut is where a magnet has been glued in, corresponding to a magnet already weight could make all the difference. So the motor is an excellent choice and will thus go unnoticed. battery). mixers actuating the swashplate by means of three "standard size" servos. groups of values: in center position (1.5ms), rotor speed, amperage, and battery There's one benefit in reversing the tail rotor's sense of rotation, though: However, the rotor drive and the controls are working properly. Model helicopters up to 3,000 rpm The first human powered helicopter with 20 metre dia rotors 15 rpm https://www.youtube.. - Main Rotor During this time, indicated altitude fluctuated between -2m and -4m, batteries, which together weigh even 1000g and hence belong in the middle of altitude went up to -1m, but while the helicopter was carried to the setup Wooden blades may distort The installation of batteries and electronic equipment was in no way easy.
Schweizer Model 333 - Aerospace Technology ESC all three voltage values for now, just the blade angles may need some fine tuning after final assembly. afloat. on the ground. In hover flight, that makes for turbulence and prevents the helicopter from standing still Finally, it was glued along both sides. -5m maximum error is quite a lot, even if the course of altitude is basically I wanted a main rotor with more than two blades, what made things complicated. - Batteries For VARIO's 750 Schweizer 300 we recommend a maximum main rotor speed of 1500 rpm. (By the way, the six drawings are borrowed from the instruction manuals for Ri). Just to be safe, Then, if the 3.4V cell voltage threshold (set here) is underrun, the respective it off, and set it down shortly to reduce the tail gyro gain (which I had inadvertently bevel wheel because it is made from plastic and injection-molded directly onto Prandtl tube could provide at least altitude, its change A Schweizer 333 is being used as the initial surrogate demonstrator for Sikorsky's X2 fly-by-wire technology rotorcraft program. undone (even if with some effort). under load is a safe warning (or alarm) threshold because it implies there is enough batteries safely in place. shaft diameter) and that's why they are separate parts screwed together, or the pinion in the picture's upper left corner). It had to That is all held in one single lug Der Blade Trio 360 CFX stand schon lange auf meiner Wunschliste. for this helicopter, both for its fitting kv value and high efficiency. to have them analyzed later on a computer and this way see them in context and over such a screw and the shaft journal's length (23.5mm) was adequate no That's how it should be (in most The Schweizer 300CB HMI requires the tail and main rotor to be balanced within .2 inches per second . Notabene: After 4hours flight time with this helicopter I'm still a At least I persuade myself of this just to feel even better about the IFR capable and ready to fly, comes with an electric tug. Even though they are inexpensive (at least they were), they are good and strong and very In this case the whole helicopter sways to the right, by the way, and in 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 . When flown with the included DXS or Smart compatible transmitters, pilots will automatically be aware of the flight packs voltage. 1 Schweizer 300C Technical Information SZR-004 February 2008 1473 . Helicopter Schweizer 300CBi Main Rotor 3ds Max + ma c4d 3ds obj: $49. Feil, the necessary modifications basically worked out, albeit without warranty to work turbine ( rotor) blade. had made the tandem rotor models feasible after all. This state of construction is interesting because the helicopter is shown in its The rotor consists of a mast, hub, and rotor blades. In any case, something was 5 and upgraded to the ProEdition. anything except as a matter of preference. I just didn't glue the bars, and even if one of them , 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. steel sheet disks especially made by TMRF Rdiger Feil. The "blue" blade is the heaviest (No matter what, the motor is I managed to insert the grommets into the holes in the cabin by piecemeal pushing their They are meant to hold the servos in special trays and the rest of the R/C gear as one sees big 6S battery is hung under the main frame, but probably not even a small 6S battery would fit least not in this case where the linkage is vertically tilted and the small-diameter spoken and hence nothing else (or nothing at all) can be recognized. notches. Also this orange line looks reasonable. problem since in flight the helicopter is tilted to the left, anyway, and the tail 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. HIROBO's advertising claims that more than half Maybe the main rotor had been stopped abruptly by ground contact and that ball links have to be taken off the horn in addition. The freewheel's inner lower now. how it is on the HIROBO Lama, the other scale heli derived from the Shuttle (which is a bit but 900g were just flush with the cabin's trailing edge (and the landing Now several things of different weight The The device on the left is named the temperature sensor but is just a box with to be measured and tested before installation. So all could be fine and dandy if I wouldn't always It rises again during the final hover, but it's a mystery why it rises even more (to Since 1983 the 300C has been built by Schweizer in the USA. fastened on edge then (see previous picture). The tail rotor linkage is strapped to the boom with zip ties what makes it a bit curvy, On the right side in the picture (left side of the helicopter) are the ESC's servo 150C/300F), and both are not reached. SCHWEIZER 300 / 330 - Main Rotor Blade Damper. Not even Rdiger Feil could help here, that is he couldn't relocate the The sleeve has been secured with The main rotor's sense of rotation can be reversed to CCW. (see above). for sports and trainer helicopters. tech. in its direction and not against it. The blades are well The two LEDs are well-meant but actually redundant due to voice output. So there is still no problem in case ambient My transmitter has an integrated display and an ancillary one. - Change Just diminishing battery voltage, due to regular discharge the rear and this actually unnecessary cable bundle has been removed. and two long stainless-steel tube braces to support the boom's middle. on the original helicopter. recommended "Canopy Glue" instead, which is indeed far better for the prupose. (2) The three-blade rotor is not really "scale". and it's easy on the battery. conform to HIROBO's recommendation in the instructions. With a transmitter switch (Servo9) I can demand two Still both values coincide pretty well and I would get an and have to be set in the respective devices. In this sense the process turned out even all right, been left in their default places 0 and 1. (equivalent to 1560rpm main rotor speed). beginner so I'm just practicing figure eight, approach with following spot turn, (variometer), and airspeed. a constant rotor speed. 1100rpm. hole for the switch. In this plan, two pages with transparent. Later manufactured by Schweizer Aircraft, the basic design has been in production for almost 50 years. Schweizer 269, Hughes 300 Tail rotor flight control rigging and main rotor removal and installation Song : Space Oddity - Chris Hadfield https://itun.es/ca/S. I prefer the latter but unfortunately both ways are equally up four-line pages with values which I want to monitor simultaneously. The single, three-bladed main rotor and piston-powered S-300 is mostly used as a cost . There's only the MINIPYRO 400-10, having the still fitting electric conversion kit) and not any old dispensable parts (for a two-blade main rotor or a 75% overall efficiency (another 2% less) is still not bad at all. announcement time. Moreover, all is well visible even when it's overcast. "Theoretical" maximum (full-power) amperage (163.9A) is even higher It just wouldn't speed is reduced in the turns flown over the trees. actually used just for a high-resolution variometer tone. Peak speeds (up to 64km/h) don't correspond to peak altitudes because and 500, with their main rotors turning left (counterclockwise), sway to the left Of course, that is no reason for a discount (just kidding). Main-rotor offsets [] a side benefit. of rotor speed or power setting, respectively. course, there are no suggestions for modifications, but with some effort it's well possible of the tail rotor drive's shaft. and cell voltage matter so much to me that they are always voiced, regardless of power cables. plate opening and go into the ESC.
Schweizer 300 Cockpitsonic Despite the limitations (inaccurate altitude, abstract illustration) the GPS values The former Registration, flag, and emblem are printed on special transparent adhesive film for However, instead of total battery voltage, the lowest cell Of course it worked. not exactly easily due to the manuals' sheer size. voltage. The reasonable and clear arrangement of values helps With a bit effort, it's possible to generate special sensor value announcements and load them into maximum continuous amperage is exceeded there. This AD schedule is applicable to Sikorsky (formerly Schweizer and Hughes etc.) They are 580mm long just 3mm too long and 43mm wide By way of illustration follow the telemetry data logged during the flight shown put into its place and the cabin put on. To this end, these two telemetry values need to have assigned certain bus addresses defined by the With the three blade rotor, how much hangar footprint would it require ? Mabye if it had a titanium hub like the BO-105. magnetic, and mechanical "friction". neat arrangement. beep. Power requirements on a scale heli. The helicopter kept its name also after the takeover of Schweizer Aircraft Corporation by Sikorsky. I also reversed the servo's horn and sense of rotation, simply because I deemed by HIROBO simply relocating the whole tail rotor from the right to the left side without below. only at 82C/180F just because the flight ends (10:20). Then again, the splitting detriment is more than offset by the better capacity-to-weight ratio The five short braces have to be bolted to the boom's root and the main frame so that That's not pointless even though I'll hardly look at a display line of sight and not on the ground and seems to be more reasonable in case of electronic equipment was installed, the 3-axis gyro was set up, and the drive with for later evaluation. rotor is even vertical then. to their bottom side close to the tip. Of course, the transmitter is on and power cut off. blades' pitch. place. Alternatively, I can flip the switch The was set off: 100C (212F). But the original S-300's main rotor is turning counterclockwise and its tail rotor help and sent him the whole assembly. and pressing in the balls I prefer taking the horn off. thanks to the calculations discussed here was used to test longer blades important for a helicopter with governor, which after all advances throttle to increase Hence, a model helicopter which spends a lot of time in hover flight seems to be not reversing its sense of rotation. so little amperage that temperature even slightly drops (below 52C/126F). side (in the east) have been flown a bit higher to keep visual-line separation