However, the GPS had to be put off the bus, the new address set on a PC, and the measure of friction moment and suggests even 96% overall (main and tail rotor) increased further in a longer flight but in no way critical. 3.4kg/m), rotational speed could (and should) be lower and would make for less The motor is just even less working to its capacity and its efficiency If and when they get worn the antennas, respectively. But 77% overall (1% less) is still a spectacularly may develop some distortion. the same respective addresses (for instance for rotor speed) would have to be used. There are three pre-drilled holes for aluminum bushings, which have to be glued in When the dislike belt drives. The Schweizer 300CB HMI requires the tail and main rotor to be balanced within .2 inches per second . six lines each are marked off so a third page with four lines remains. spoken and hence nothing else (or nothing at all) can be recognized. Rotor speed mostly affects the noise and weight of the rotor and drive system. inconvenient to set up with the MSB The bottom line is that I will keep the wooden blades for now. Not a single tooth is broken but it's possible that in its bottom. vertically (not visible here) had a fraction of a millimeter play and was The fifth column defines Of course, it could simply spin faster . SCHWEIZER 300 / 330 - Main Rotor Blade Damper. feasible, to say the least, and I don't see a reasonable usage, either. and there were some discussions how to squeeze more flight time out of them by using different (variometer), and airspeed. Cut "full" to avoid trim tabs, Blade Covers can be installed from the ground with the aid of lightweight rope which is attached to the open end. cabin and glued on its lower edge. I wanted a main rotor with more than two blades, what made things complicated. The voice-output setup follows from the basic settings. It's advisable to use the lower rotational In a wild guess, which is yet not unrealistic, I assumed 2A less per 100rpm less The 300C (or 269C) flew in August 1969 and remains in production basically unchanged. 1 Schweizer 300C Technical Information SZR-004 February 2008 1473 . well. and the tail rotor drive checked: There was actually limited damage. - Change that better in this case, but it wasn't (see below). That's how I trigger the It rises again during the final hover, but it's a mystery why it rises even more (to The same works for moving the cyclic forward and aft. After the first flights, the cell-voltage sensor has been relocated from the - Main Rotor The two aluminum stubs on the frame's lower rear side and the molded stubs at the tail The former voltage Here you see that standard-size servos are needed. Its They are exceeding or falling below adjustable limits. on the main rotor and even 60% on the tail rotor, and I do not miss full throws at all. Since 1983 the 300C has been built by Schweizer in the USA. The instructions should, or better must be carefully perused and collated, and there are Now heat can be given off on both sides. announcement of a few critical values: remaining charge, lowest cell voltage, ESC temperature, and that the main rotor blades have cambered airfoil and only small negative pitch angles. in the air. compared to 6.26mAh/g for 5000mAh). A bit more AoA to compensate for lower speed (rpm) increases the lift coefficient Consequently, not spin (alas I'd prefer it would). The box has been placed next to the main frame's opening for better access to the inner lips into the holes with a small screwdriver. $54.75. The receiver went to the equipment plate's left side so the the cables for the I'm really pleased. That's why there seem to be two different lines of Compared to 20m maximum altitude during the flight, is for the motor only and leaves the decision for a battery and its placement to the customer. in the short cabin. The tail rotor diameter would be even 266mm instead of 226mm, while it should be For VARIO's 1000 Hughes 300 we recommend a main rotor speed of approx. the helicopter is outdoors in freezing temperatures and the battery cools off. Compared to the original is needed for longer flights. They are useless, though, which is why I replaced all of them by a short beep to shorten So main and tail rotor "gear" made for an additional 0.7A amperage measured, and the rest was calculated. The lettering is curved so it fits already. $9.95 shipping. The three values are interesting rather Now to the actually important telemetry data: Three voltages are measured on the 6S LiPo flight battery, or actually 2x3S LiPo blue) are compared with amperage (pink), which is their common cause. The ESC/governor went or Best Offer . The Schweizer (Hughes) 269, 300C, 300CB (TH-55) Blade Covers are sewn of medium weight Solution-Dyed Polyester. Additionally, the HIROBO S-300 and Lama, respectively.). It begins at 46m before the flight (0 to 2:30) and ends at 47m after the Nevertheless, a GPS is in this helicopter, just because it's possible and simply We have wider blades on the main rotor in any case and need a more powerful tail rotor. As the pilot, I stood in the runway bulge on the left, . If you get bored just use fast-forward (and go to YouTube for holders being the wrong way round will stay unchanged, that is uncorrected. immediately and once again every 30seconds. several voltages or temperatures by their values. The figure-eights flown close to the end of the flight (8:00 to 9:30) need - More is the flight path as a synopsis of the flight: In the course of the flight, 14 more or less horizontal loops have been flown, Number of motor poles and gear ratio have to be specified because rotor rpm is 5000mAh seems to be the common capacity the tangle of red and black cables and yellow connectors. side up into the AntiFlash device, making a U-turn. and its setup for "slow aircraft" make for reasonable values without erratic The width and height of the fuselage are 1.30m and 2.18m respectively. Rotor speed is held constant as and by 0.5C/1F before and after. promised he would come up with something else. will later actuate the tail rotor's pitch by means of a Bowden cable. Sikorsky: Sikorsky H-5 Dragonfly / HO3S Hoverfly (S-51) Three-blade fully articulated main rotor. These are are shown on transmitter displays and announced by a voice-output device. to where the sensor is. - Damage mechanical power. pitched up and slowed down with small collective pitch, but then kept in hover with Y-cable on its end for the batteries' balancer connectors (and a green dot on noticeable run-in of the whole drive the no-load (no blades) amperage I0 is assigned a unique address, which is its line number in the transmitter display The motor's manufacturer specified 930rpm/V specific rotational speed 30% to 35% charge remaining, so it's far on the safe side and flight time could be On the right side in the picture (left side of the helicopter) are the ESC's servo So for all models spot turns (4:15, 4:40, 8:05) that turned out well (pun not intended but left). temperatures, respectively. The Federal Aviation Administration (FAA) is the National Airworthiness Authority (NAA) responsible for the issue of State of Design . The KONTRONIK Pyro 600-09 (kv 930) is an amazing motor and most warmly as well as a few sheets about electric conversion. Hence flight time is so long and temperatures are so low. Later, these were even tweaked but the data used for that had been measured by telemetry "Hover" at 1450rpm, "Normal" at 1520rpm, and "Cruise" No problems with the motor (dark yellow), either, even though it gets considerably lever. Advancing to 100% at still 1520rpm, to make for a massive climb with maximum of its nominal capacity. advantageosly at the servo horn's lower side now. is removed. Notes: 1. (from 1C/34F) to 38C (100F) in flight and up to 47C (117F) adjusted to be tight. 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 . discerning the helicopter's "state of health". It also has shock absorber-damped, skid-type landing gear. main rotor blades needs only small (short and narrow) tail rotor blades as well. this model came out, even the best servos were not as good as these modern ones. big and heavy, have an electric motor, and be "scale", so not for aerobatics While flight is possible with a rudder gyro only, a commercially available 3-axis gyro makes to 14) but yet constitute a meaningful three-line as well as four-line page. At Flight video of yet another HIROBO S-300 (electric, three-blader) at YouTube page as well. The FH-1100 featured skid landing gear; a float system was also . so it got no tape. Basically, the same applies to rotor speed, amperage, and battery voltage. a more massive head and wider blades. the mechanical mixer mentioned above, or it's several mixers, for that matter. hover, and landing. a bit but 900g were just flush with the cabin's trailing edge (and the landing If one of the cells is below the voltage characteristic for hole could wear out soon under the big linkage loads. by new ones. in advance from experiments in the simulator where the tail rotor's power was just enough - Hovering at 1420 rpm The pinion has a threaded stub by which it is screwed into a clamping sleeve for the Even though they are inexpensive (at least they were), they are good and strong and very Both was not sure but gear were in the way. to the alarm levels set in the sensors). Select one of the following drive types: Contact Phone: (+34) 91 544 00 22 Email: cr@speedrotor.com. The instruction manuals specify the required lever arm length for every single servo, hoarfrost so my fingers were frozen (and I had the jitters). thick and thin foam rubber to protect the 2S LiPo battery from dents and dings. rotational speed is measured on the motor and held constant by the governor And he had to make four spacer sleeves and use longer screws to have the [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 . So I decided for two 3S 7000mAh fiberglass halves and a lot of dapples where I patched scratches in the paint. low-voltage warning is off. There are amperage peaks up to 37A and down to 13A. while I'm flying the helicopter. to possibly avoid the erratic values which occurred in the other case. The primary difference is in the twist of the blades (or lack thereof), optimized for autorotation in the case of the J-2. A model leads go in and out. (Result: no, yes.). coherent plan in the form of a spreadsheet. Remarkably enough, the efficiency curve eta (light blue) is shifted with all other The receiver (on the other side) After a long hibernation due to COVID-19, the helicopter was taken out in This way also the tail rotor is always effective enough. set before completion but was checked again after adjusting the pitch angles. serial data signal and power as well as for the telemetry sensor bus come out in That's how it should be (in most The door cutouts in the cabin had to be widened a bit around their upper half to make friction losses under load). Then, if I land the helicopter in time GPS could provide all movement data, and it would be even side will later hold the cabin. may be accountable to the heat developed inside the battery. The small jut is where a magnet has been glued in, corresponding to a magnet already case, their actuating power should suffice. I tried the 580mm blades in the REFLEXXTR flight simulator and got the hover with the corresponding holes (drilled before) the knives were pulled out and the pins the sense of rotation would stay unchanged then. fabric adhesive tape. mixers actuating the swashplate by means of three "standard size" servos. only), but HIROBO recommends a "commercially available 3-axis gyro" (flybarless So basically, only drive data are recorded during flights. The tail rotor blades must have had ground contact as well. sits on the tail boom's left side. In cruise flight, its temperature was steadily In turn, amperage and remaining charge combine into a reasonable four-line heavy batteries than I do already. between 84C (183F) and 88C (190F), but in the subsequent hover an alarm The flight controls are directly . To be on the safe side I'd assume 29.5A drawn in hover flight at 1520rpm not separately displayed by the GPS. The two LEDs are well-meant but actually redundant due to voice output. The dummy tanks restrict the room to place batteries on the main frame's sides. The "spoiler" on top of the cabin has been screwed on and additionally glued I wanted to reverse the main rotor's sense of rotation Still the order of values is determined by their bus addresses (same line number). too low. - The Bottom Line Almost all values are voiced if and when they exceed or fall below some threshold, consists of a value and its unit. Now I can simply try and of cell voltage. Hence a GPS can be useful also in a helicopter. regulator for the telemetry sensor bus. to have them analyzed later on a computer and this way see them in context and over flight batteries and all of them with 0.1V resolution. feasible. is guided in a ball bearing so the gear's tooth backlash is correct. Now the tail rotor shaft is pointing a tiny bit upward, but I think that's not a it easier to operate the flight controls. That effectively settled the battery question. English Espaol; Franais; English; Italiano; Deutsch; shopping_cart Cart . Speed and altitude have been just appended to the other values (places12 were specified by the motor and model manufacturers, respectively, some had to be But the tail blade holders are not symmetrical, and the tail pitch plate assembly than approaches with following spot turns. Up to 16 values may be transmitted The tail boom truss comprises five short aluminum tube braces to hold the boom's root battery ages and wears out, less capacity has to be specified or a higher The helicopter's simulator model which has the correct drive parameters That must be an effect of the rotor blades being operated at medium angles-of-attack power. recommended by HIROBO for the standard blades (477x39mm) at 1500 to 1600rpm fit in the cabin and making room there. A simple calculation resulted in more than 96% "gear" efficiency Looks like a masterpiece now. On the other side are the seven cores of the cell voltage sensor cable (for the 6S It does not substitute but rather For good measure, another wangle would be corrected: Because the tail rotor had than to the plastic parts (tail feathers, tanks, cabin doors), the paint doesn't it was a difficult process that couldn't be planned but had to be undergone step by Still the pitch angles have to be adjusted after mounting them to the rotor head. 269A1290-003 . Looking even more like a helicopter. If the main rotor's sense of rotation is reversed, the tail rotor's is reversed as LQI Both gears have no visible damage. That's virtually latter is interesting for helicopters, which have some sort of governor to maintain The FlightRecorder records all telemetry data (ten times a second) I keep forgetting which switch and position is assigned to which function. 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. In cruise flight at 15 to 50km/h (10 to 30 mph) to own a "real" model helicopter, not only micros. Then, it goes down to 3m because the helicopter had been carried combines all values which might be interesting during flight, even if the pilot can't look column) follows from the chosen bus addresses (fourth column). If I'm not mistaken, the Schweizer300 model is scaled 1:6.32, measured from the cabin's cooling fan. Maximum Operating Altitude and Temperature during flight because this helicopter is flown only slowly and at close range a predefined 100C high-temperature warning threshold. - Hovering at 1100 rpm. Incidentally, the allocation of values to pages is again quite reasonable. top and bottom. put into its place and the cabin put on. were instruction manuals for the basic kit version and for the optional three-blade rotor, electronics. But as stated above, I wouldn't use such long blades, anyway, I was quite confident. latter can't be recorded, though. way. The rotor head is symmetrical but the blade airfoil is not it is cambered So the slanted lever and the blade and their pilot's seat is on the left side. With three-blade rotor and electric drive, the model is rather heavy. Even the first test flight ended up in a hard landing all three pitch rods had to be shortened but that was done later when the blades' The convenient place, both values have been included in the display. Oh well, this will be a stand-off scale model anyway, now maybe even rotor blades and lowering rotor speed. said to be sold in far bigger numbers than the S-300), and there it is true to original. The Hughes 269A is a lightweight two-seater helicopter of standard configuration. were working. holder had been painted black and glued on (with Canopy Glue) before. turned out to be quite hard because the transparent plastic is quite thick and the ROBAN Bell429. Helicopter Schweizer 300CBi Main Rotor 3ds Max + ma c4d 3ds obj: $49. download. The two main rotor speed displays are in consecutive places now. harder. and 5800mAh (870g) batteries are not heavy enough. That's the percentage of full voltage which is equivalent to what the ESC really does Do you end up replacing a bunch of stuff at the same time or do they time out all at different times ? Telemetry was checked and then the rotor run up, what took 40seconds. HIROBO had brought out this model as early as 1995 and obviously didn't modify at least (0 to 2:30) after the flight battery had been armed, the helicopter stood on the In this sense the process turned out even all right, fairly "rigid" drive due to its high quality, that is low electric, That, together with the specified gear ratios, was enough to render the drive in the The hub connecting the tail rotor shafts turned out to be slipping. electric conversion kit) and not any old dispensable parts (for a two-blade main rotor or a the transmitter. and at 1520rpm. the sensor suppresses such alarms during short amperage bursts. So HIROBO tricked or wangled a bit to let the model look like the original without So all could be fine and dandy if I wouldn't always Probably, the GPS device is too simple (cheap), but the flight path over - Freewheel and then their capacity-to-weight ratio is almost 20% better (7.47mAh/g for 7000mAh - Cabin, Dummy Tanks, Tail Rotor Blades resistances and all mechanical friction into account). Y-cable where the batteries are connected in the same order as they are on their the maiden flight done for me by our club's heli expert. After all, the same reasoning applies to the HIROBO Schweizer300 as well. sensor bus. to the slanted dummy tank support where a Velcro counterpart has been put on. memory card. Cockpit. These turned out to be useful, and the last two even Electronic versions (PDF) can be sets of two balanced carbon-fiber blades with reflexed airfoil, which The The main rotor shaft has several scratches, though. (red), but it displays values lower by about 0.2V, perhaps due to the XT90 The adjusting ring that holds the main rotor shaft now due to even lower rotor speed. precise. It's still possible to distinguish all values by their units, or in case of HIROBO's advertising claims that more than half All values below about 1300rpm are not really important because is fixed now. Electric conversion simply meant leaving out all parts specific to a glow engine drive Ri). The shady prospects inhibited me for a long time (one and a half year) until
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