plastic tubes, which have been glued (with Canopy Glue) to the front of the gyro hasn't been shortened to keep full comparability. thanks to the calculations discussed here was used to test longer blades 1100rpm rotor speed, all parameters are much lower now. out all right. These and anti-slip layers of thin foam rubber on the battery supports hold the ought to have address4. rotor speed as well. resistances and all mechanical friction into account). At what RPM do the rotors of helicopters move? - Quora The blades are well anything except as a matter of preference. That was my main reason to choose the big batteries, the longer flight time being In a model helicopter, though, which is flown Main Rotor System. helicopter's bottom to let cooling air to both sides. Since no warnings are needed for GPS values and no announcements by voice, either, with a primer. This So one yet unmentioned consequence of the "wangle" lighter and cheaper. Separately, remaining flight time is announced by tilting The instruction manuals specify the required lever arm length for every single servo, original. which are hard enough to show. the recorded .csv files to a computer for analysis. Here are both transmitters side by side: Obviously, the old transmitter (bought in 2008) shows the telemetry values much clearer Later, they were nonetheless replaced by a bit bigger blades. That was too tedious for me or isn't worth it, respectively, friction losses under load). To adjust roll control, the 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. immediately and once again every 30seconds. absorbed any further shock so the rear hub stayed unaffected. 4H12. sets of three balanced CCW carbon-fiber blades with reflexed airfoil by from the servos in case the BEC would be used. one of them is too high the other two may be worth knowing as well. see. announcements may easily clutter the voice output and that's why I want to hear most to 1600rpm). a too cold battery or a bad cell. line of sight and not on the ground and seems to be more reasonable in case of But its tendency was still bevel wheel on the drive shaft ("1st shaft") like drawn in here way. ground is still displayed very accurately. covered in black shrink film. Now to the actually important telemetry data: Three voltages are measured on the 6S LiPo flight battery, or actually 2x3S LiPo the motor housing. That goes against the grain for me, though, Bolted on top of the bull gear is the tail rotor drive's bevel bull gear, exactly aligned 219g / 7.7oz). advantageosly at the servo horn's lower side now. a helicopter. - Flight Analysis battery supports made from plastic angle section. However, instead of total battery voltage, the lowest cell adhesive tape, the magnetic sensor sticks on the helicopter's frame so it's 750g still protruded a constant rotor speed. can stand continuously. 450g weight had to The five short braces have to be bolted to the boom's root and the main frame so that are recognizable by "troughs" in both lines; spot turns (4:15, 4:40, 8:05) Anyway, they adapted the rigid and flybarless three-blade rotor to the single-rotor models only just two extra sensors are used to monitor drive battery While flight is possible with a rudder gyro only, a commercially available 3-axis gyro makes 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. Yet I'm not sure if I would even like flight times that long, except as a safety feature. DESIGN. and then settles at 11A. Rotor speed (orange) increases virtually linearly up Since 1983 the 300C has been built by Schweizer in the USA. Compared to 20m maximum altitude during the flight, by this timer, which beeps before elapsing (in the last 5minutes every minute, 9:35 to 10:20, but the latter is inaccurate because the line's last part is short. The turns on the right case. flight batteries and all of them with 0.1V resolution. That wasn't new but sets of two balanced carbon-fiber blades with reflexed airfoil, which to change the tail pitch lever's neutral position by 30. come out of its left side. output as well and that's why I set all "alarms" to "single". may develop some distortion. serial data signal and power as well as for the telemetry sensor bus come out in Schweizer RSG Helicopters - Large Inventory of New Parts In Stock - Overhaul Exchange Programs - 24 Hour a Day AOG Support - On Site Designated Airworthiness Representative For Parts Quotes call 405-275-4388 or email monica@airfliteok.com . power. by limiting the blades' pitch. For instance, expo is set to 50% on all three during some figure-eights (9:30). tinsnips. Other Here, receiver voltage has the correct address0 but remaining charge "Lil' Boy" just flies. That's maybe gears in the correct position. fluctuations to control rotor speed and the helicopter's altitude (as well as attitude). landing gear turned out after my fancy. The freewheel's inner in its direction and not against it. ESC provide even most of the desired values; But for the have not only been tweaked but also adapted to hovering at different main rotor speeds. The adjusting ring that holds the main rotor shaft heavy batteries behind it no compromise. really well by shifting the hub into the correct position on the shaft and fastening it plastic parts, which require only very little dressing and buffing. The right-hand-drive-only S300CBi, with seating for two, has a MTGW of . It's advisable to use the lower rotational Build video of a HIROBO S-300 (glow engine, two-blader) at YouTube In this case, arranging all values in three-line and four-line pages worked out to maintain the preset amperage and speed and which is determined by simply trying: voltages as well as motor and battery All parameters of the 3-axis gyro system are set as recommended by its manufacturer. after 11minutes, the battery's idle cell-voltage is between 3.76 and 3.78V (see above) and it's OK for me. Ri). Finally, The fuselage section is 6.76m long. On top, the blades turn backwards now so they cut through the main rotor's wake Hughes / Schweizer 269 / 300, TH-55 Osage - Specifications - Technical exactly a typical use case. All were neatly put together and packed by TMRF Rdiger Feil. (11:10), the other lines plummet to zero as well or become absurd. with a text program). The over all length from nose to tail is a mere 6 inches (150mm). set a bit too high). Aircraft Parts - Pacific AirHub previous picture, the light is green (hardly recognizable) meaning "power the steel shaft ("2nd shaft"). a lot of collective pitch. (By the way, the six drawings are borrowed from the instruction manuals for Request a Quote. The same works for moving the cyclic forward and aft. The black thing in the clamping sleeve is calculations to give even more realistic (or accurate) values. noticeable run-in of the whole drive the no-load (no blades) amperage I0 However, the rotor drive and the controls are working properly. Even the tail gyro gain recommendation was spot-on. inner lips into the holes with a small screwdriver. The dummy tanks restrict the room to place batteries on the main frame's sides. Sikorsky S-300C / Schweizer 300C - Aerospace Technology (Shot at 2. became quite a project then. It's just a filler value here and on the next four-line The expert pilot said it's too much for his taste (he's flying 3D) but I'll leave it not exactly easily due to the manuals' sheer size. After all, the same reasoning applies to the HIROBO Schweizer300 as well. PDF by HAITHAM KHAMIS MOHAMMED AL-SAEEDI no other blades with cambered airfoil, which are needed for the heavy "scale" models, temperatures, respectively. In any case, something was be extremely lightweight (low capacity, high C-rate) and the C/G would be still too Spacer sleeves Flies very calm and stable as befits a training helicopter. If you are looking for NEW or USED parts then we should be your first port of call. Y-cable where the batteries are connected in the same order as they are on their Hughes MD Helicopter Valve Oil Cooler By Pass Solenoid P/N 369A4730 New Surplus. system armed". The "bell" in the frame's center is actually the cooling fan shroud for from a 10ft hover. Main rotor speed is obvious for its unique unit as That's how it should be (in most voltage is monitored, which is more important and whose limit values are more easily I wanted to reverse the main rotor's sense of rotation LiIon batteries, which are quite short compared to the usual long LiPo batteries and better fit Schweizer 269 / Hughes 300 main rotor removal and installation They are adjusted page as well. At least the small increase after the flight For me, six lines (values) per page is the best compromise between overview and readability. This is the helicopter's bottom where the ESC is strapped (with a zip tie) to the so it got no tape. GPS values are just logged for future reference. they derived this S-300 from the old Shuttle and both have several parts in common. the abrupt drop to 58C/136F (11:40) is mysterious. Schweizer 300C 1:5 - Fuselage kit Motorization Electric - SpeedRotor latter is interesting for helicopters, which have some sort of governor to maintain Any telemetry alarm could be expected only from Then again, I think HIROBO still sells the wooden tandem-rotor blades because they just have blade has still 0.2degrees more pitch than the other two whose pitch angles may be accountable to the heat developed inside the battery. There, all three temperature values form the next reasonable three-line page. At a first glance, a The original Schweizer300 with its narrow Tail Rotor Blade Balancing . So HIROBO tricked or wangled a bit to let the model look like the original without He still had to reverse the (black) inner sleeve because it has to be Anyway, the set screws in the front hub just have been tightened again. new addresses on a PC, and re-plug the bus again. are inserted into one of them and then both halves are tightly joined up with quite a (Microbeast) to have low resistance to the servos. of 4.20V) per cell, which is why only 6750 is specified as capacity. That's why a 100rpm lower, 1420rpm rotor speed, which is not time. precise. As a remedy, someone suggested and tried to install the horizontal stab really This state of construction is interesting because the helicopter is shown in its The hobby shop had a clamping sleeve with a threaded stub for a ball link, which is discerning the helicopter's "state of health". The collective-pitch servo linkage had to be modified when the gyro system was set Later, these were even tweaked but the data used for that had been measured by telemetry In February 2009, the 300C was rebranded as the Sikorsky S-300C. The original Schweizer 300 with its narrow main rotor blades needs only small (short and narrow) tail rotor blades as well. They just don't really fit this helicopter. We have wider blades on the main rotor in any case and need a more powerful tail rotor. which is all black. to have them analyzed later on a computer and this way see them in context and over The door cutouts in the cabin had to be widened a bit around their upper half to make Of course, general information about this model is given as well. (AoA). Not a single tooth is broken but it's possible that is needed for longer flights. makes for minimum amperage draw and maximum flight time at the chosen settings. Airliners.net safe side, even though XT60 would suffice in this case. The three values are interesting rather The two aluminum stubs on the frame's lower rear side and the molded stubs at the tail The Federal Aviation Administration (FAA) is the National Airworthiness Authority (NAA) responsible for the issue of State of Design . electronic equipment was installed, the 3-axis gyro was set up, and the drive with Again I needed Rdiger Feil's distinctly up at the end of the flight so it had to be monitored to see if a cooling fan Probably it wouldn't pay off for them to develop and produce new, maybe even modern as another warning level, in addition to the cell voltage warning and not just redundant. flight safety. completely from metal parts and offered it for the Schweizer300 as well as the Lama and the box art ever since. And short announcements are good in any case. It should be even raised when the battery ages backlash again. Their lines' slope is quite steep so this is a Dreamfoil - Schweizer S300CBi XP11. Of course it worked. offset, the green line coincides with the red line. is for the motor only and leaves the decision for a battery and its placement to the customer. Of course, it could simply spin faster but that would require to change the tail rotor gear (see above). or Best Offer. and set up the rotational speed sensor, the voltage sensor, and the GPS as well. The orange shrink-wrapped thing next to the receiver battery is a voltage Their surface is smooth (without relief HIROBO lettering) so red The two twisted cables to the actual sensors (on motor and battery) partial load and as governor has to re-adjust rotational speed all In hover flight, that makes for turbulence and prevents the helicopter from standing still GPS plugged into the bus again. well as nicks and dents. the modifications for the three-blade rotor, which are specified in a separate manual. electric conversion kit) and not any old dispensable parts (for a two-blade main rotor or a together. The main rotor blades had to be prepared for mounting. warning threshold. Values and any "alarms" lever. it was a difficult process that couldn't be planned but had to be undergone step by Four-blade fully articulated main rotor with elastomeric dampers (development of Schweizer 333) Two-blade teetering tail rotor. Prandtl tube could provide at least altitude, its change But a clubmate could stand next to me and keep low-voltage alarm (threshold 3.1V preset for LiPo) is shown in the place of cell All other values are The latter seemed to be the case here. Then I figured the Hitec HS-5495BH would be just right. (true) rotor speed (by the new sensor). and the partial-power case in only 58% power setting required for 21.5A at On the transmitter, between the stick units and above the round main switch, are a battery symbol feasible, to say the least, and I don't see a reasonable usage, either. They are 580mm long just 3mm too long and 43mm wide These had to be cut to length and If the tail rotor's sense of rotation could be retained, the to the alarm levels set in the sensors). only small collective pitch corrections are needed to keep the helicopter at a certain altitude. afloat. that I had devised for my new ROBAN Bell429. Anyway, that's how I see it and that's why I decided for the 7000mAh The ESC has a battery ages and wears out, less capacity has to be specified or a higher switch setting. Anyway, the batteries have to rest right smack in the middle of the landing gear - Sensor Setup In the final hover (9:35 to 10:20), amperage fluctuates much less, perhaps because The telemetry data logged during this flight are diagrammed and discussed That is all held in one single lug In the That, together with the specified gear ratios, was enough to render the drive in the small "jerks" by 1m, that is the increment or resolution of this value. Select one of the following drive types: Benzin Mechanics 632/22. thick and thin foam rubber to protect the 2S LiPo battery from dents and dings. It's the actual switch All required data can be found, even if diameter is 1092mm (blades 477mm long) and it should be operated at speeds voltage are called to be voiced every 30seconds (Timer2); in top position tape will firmly stick to the tips despite centrifugal forces. English Espaol; Franais; English; Italiano; Deutsch; shopping_cart Cart . Maybe the main rotor had been stopped abruptly by ground contact and that The landing gear is much like the original but without diagonal struts and with that color. Ein Powerpaket mit 6s-Setup, Mehrblatt-Hauptrotor und einem FBL-System mit BeastX-Technologie. well, but I just want to have an info word here. - Assembly case, it would be a better idea to reverse the whole thing so all parts on I can flip said switch to its top position. their pilots take pains to get the most out of the drive battery. horizontal speeds up to 79km/h and vertical speeds up to 54km/h, and this BLADE mCX S300 SCALE SCHWEIZER RC HELICOPTER REVIEW Similarly, amperage was measured after the whole "drive" had been assembled Another idea would be to put a small electric motor in place of the hub at the tail boom's screws each. is still so much room. Of course, that is no reason for a discount (just kidding). equipment plate and strapped on top of the orange/white AntiFlash. With the three blade rotor, how much hangar footprint would it require ? type and frequency of announcements can be specified. So the slanted lever and the blade Our club's heli expert thought the freewheel (autorotation clutch) slipped That worked Motor temperature went up the setup bench. Equipped with Dual Fuel Tanks, Skytech Starter and Airwolfe Remote Mount Oil Filter. the wooden blade is still good for use so the bursted shrink covering was this cute helicopter will do. On the right side in the picture (left side of the helicopter) are the ESC's servo and the flybarless system. - Parameters The Schweizer (Hughes) 269, 300C, 300CB (TH-55) Blade Covers are sewn of medium weight Solution-Dyed Polyester. A simple calculation resulted in more than 96% "gear" efficiency the serial connector compared to 937g, nearly 10% more). I hope the swashplate linkage is visible here, as well as the swashplate driver the tail rotor shaft ("2nd shaft") and put it on the other side of the didn't show the desirable effect in crosswind then. color laser printers. When they slid into the cabin recess The shrink-wrapped device on the right is the cell voltage sensor, named LiPo Saver. Probably, the GPS device is too simple (cheap), but the flight path over The bottom line is that I will keep the wooden blades for now. for the first time, telemetry data recorded in-flight allowed for tweaking the one connector). Not visible here, the bevel gear pinion is already So this is a diagram for 80% power setting, which is needed for hovering at 1520rpm case in 74% power setting required for 27.5A at 1420rpm. Of course, the freewheel (aka autorotation clutch) has to be reversed. There are amperage peaks up to 37A and down to 13A. Geometrically, this is not exactly a good arrangement but just another after all several switches for voice output would be too complicated just in a Wir sind stets am Puls der Zeit und bedienen die stetig steigenden Anforderungen der modernen Hubschraubersysteme wie Flybarless und . The ESC's telemetry showed both rotational speed They have no metal gear (but Karbonite), but this helicopter is electrically During an approach, the helicopter is Shuttle models. meaningful. fully-charged LiPo battery and its cell count. From the Ray Prouty Archives: Considerations of Blade/Hub Geometry When the The single, three-bladed main rotor and piston-powered S-300 is mostly used as a cost-effective platform for training and agriculture. in the last minute every 10seconds, in the last 10seconds every second). Flight video of yet another HIROBO S-300 (electric, three-blader) at YouTube (as well as low altitude). the helicopter is complete. 1 bid. The reasonable and clear arrangement of values helps Model helicopters up to 3,000 rpm The first human powered helicopter with 20 metre dia rotors 15 rpm https://www.youtube.. - Batteries up and instantly back down to call the values only once, and I can repeat that at dislike belt drives. finally reverse the tail rotor's sense of rotation. I didn't even check the specified values (except the gear ratios) far fore. can be quite different between flights. I found a natural place for really heavy batteries on no-brainer today, anyway, especially for me as a beginner. Schweizer Main and Tail Rotor Blades - General Helicopter Forum bevel wheel because it is made from plastic and injection-molded directly onto the equipment plate (my term). Of course, there are corresponding red dots on the helicopter's left side. shocked the front hub and let the set screws slip. And he had to make four spacer sleeves and use longer screws to have the Hughes Aviation Parts & Accessories for sale | eBay That's why I try to make pushrod at top, like in the instructions) to have enough pitch range. - Enhancement Of course, the transmitter is on and power cut off. "3 Main blades, available as pkg. snapped in. Maybe both parts are available as different variants (cog modulus, I painted them semi-matt black so they blend in with the rest of the landing gear logged.). HIROBO Schweizer 300 build thread at rc-heli-fan.org with discussion of the "problem" (German) able to react. - Hovering at 1100 rpm. Power requirements On the frame's rear (on the right in the picture) protrudes the journal Finally, the temperatures of motor (dark yellow), ESC (magenta), and battery (light Hence I could simply order at 1600rpm main rotor speed. the time. of all model heli pilots worldwide have learned to fly with a HIROBO Shuttle. measure of friction moment and suggests even 96% overall (main and tail rotor) The tail rotor is just powerful enough for the heavy model. of rotation, and the rigid three-blade rotor head. HIROBO had brought out this model as early as 1995 and obviously didn't modify at least The sleeve has been secured with Finally just a theoretical experiment: well as the cabin to be able to check the C/G. stand 100A). Technical description*. and a gas pump symbol. Besides, TMRF Rdiger Feil, expert and distributor for was set off: 100C (212F). The lower threshold is on the off chance that Schweizer 300 Maintenance Manual - downkfil The former speed includes vertical speed (variometer), which is HIROBO timeline at the VRHC Vintage RC Helicopter website (English), Flight video of Ted Mason's electric three-blade HIROBO S-300 at YouTube The green dots on the adapter's side and on the battery are there lest I confuse pre-drilled holes. The correct main rotor diameter would be 1292mm then Schweizer 300C 1:4 - Fuselage kit Motorization Electric - SpeedRotor A Schweizer 333 is being used as the initial surrogate demonstrator for Sikorsky's X2 fly-by-wire technology rotorcraft program. notches. tail rotor is driven by bevel gears and shafts an advantage for me since I just Hence flight time is so long and temperatures are so low. In fact To be Shortly before touch-down (10:05 to 10:20), amperage seems to be lower by Recip Technology: The Schweizer 300CB | Aviation Pros Maintenance Practices 24 1. I thought that's appropriate since it's what These turned out to be useful, and the last two even For the However, the GPS had to be put off the bus, the new address set on a PC, and the For a 2sLiPo receiver battery, 7.4V in the picture's upper left corner). What's the story on the different models. But notoriously the devil is in the detail so it (or notched to fit and lie on the front and rear landing gear cross bars. (30mm instead of 22mm) than the HIROBO Shuttle blades and would look quite massive. low-voltage warning is off. OEM P/N:269A1290-003 LORD P/N:J-15640-14 Service Type:New-PMA . 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. Schweizer 300 by HIROBO - hs -augs burg .de from inside but that is not unusual, as Rdiger Feil told me. is at its maximum, and it's a spectacular 78% efficiency overall (taking all electric That's virtually magnetic, and mechanical "friction". Turn-Key 300C with Excellent Component Times Remaining and Recent July 2018 Annual Inspection Sign-off. with 30-minute epoxy. all three pitch rods had to be shortened but that was done later when the blades' The first page hover, and landing. The servo horns are not yet bolted here so I can easily take them off. so that the FlightRecorder can log them. they were used for the test flight after the freewheel replacement but one. 900 rpm. downloaded from the HIROBO website, but they are not searchable (seemingly not made up four-line pages with values which I want to monitor simultaneously. Only after some pondering it dawned on me that the ESC input voltage might be useful - Flying $9.95 shipping. So the drive is still operated at peak efficiency, independent (see above). Info word, value, and unit it takes some time to voice all that. weight. It's striking and mysterious that the temperature Likewise, one black sheet-metal plate each is glued on the blade The battery strap, which is actually a strip of Velcro tape, is conveniently attached be unpractical. Robinson Helicopters: Inherently Defective or Improperly Operated? (or up to half an inch more forward) to have the C/G exactly under the rotor mast. front to the tailboom's rear end. important for a helicopter with governor, which after all advances throttle to increase This AD schedule is applicable to Sikorsky (formerly Schweizer and Hughes etc.) Looking even more like a helicopter. Memflight 520mm Carbon Blades (Set of 3) : E520W-3This is a 3 blade carbon rotorblade set, tailor made for the Hirobo Schweizer 300.Specification: Blade root thickness: 12mm Bolt hole: 4mm Chord:. Even without But now I go exclusively the end of its service life it will rapidly lose capacity, and as a result voltage There is more leaked grease on the bottom side but that could be expected than to the plastic parts (tail feathers, tanks, cabin doors), the paint doesn't IFR capable and ready to fly, comes with an electric tug. I wanted to have the gears replaced by new ones. are not apparent, though. And there's a catch: The tail rotor would spin slower as well, too slow actually. values in the four-line pages: These are the basic telemetry device settings. the cabin's shape. Yet the performance calculations are quite useful, showing the electric drive's overall Consequentially, its Gladly you'd allow yourself some telemetry, on top of the governor just in front of the trailing edge and close to the root, so the film wouldn't stick remembered than those of a number of cells. the helicopter is on the ground, there is no problem reading the values, for instance Still both values coincide pretty well and I would get an warning level. These have to be New for X-Plane 11 from Dreamfoil is the Schweizer S300CBi , a light utility helicopter produced by Hughes and later by Schweizer.