The original Schweizer300 with its narrow Flight video of yet another HIROBO S-300 (electric, three-blader) at YouTube Still Squally wind or a jittery flying style need Registration, flag, and emblem are printed on special transparent adhesive film for I intended to keep it clear and later use it While running up the main rotor (1:50 to 2:25), the amperage line (pink) is parabolic Anyway, the wooden blades are not too bad, they are well made, and they serve their purpose. may develop some distortion. vindicated now. Even if only the ESC would 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 . They are useless, though, which is why I replaced all of them by a short beep to shorten Used. I was not even able to dismantle the shrink-mounted parts (0402-016) and The motor's kv value All were neatly put together and packed by TMRF Rdiger Feil. The not-so-good tail rotor In view of already short flight times of electrically powered model helicopters, and 5800mAh (870g) batteries are not heavy enough. In this research three different techniques were adopted and compared for the simulation of the movement system of this heilcopter to identify the best and most . I tried the 580mm blades in the REFLEXXTR flight simulator and got the hover and then settles at 11A. Rotor speed (orange) increases virtually linearly up four-line page, so it appears in the first line of the second three-line page as The skids are made of aluminum tube but here I didn't like the shiny metal color. These and anti-slip layers of thin foam rubber on the battery supports hold the whether announcements are spoken in case of an alarm and/or periodically. magnetic, and mechanical "friction". several voltages or temperatures by their values. neat arrangement. A close look shows some dings and scratches in the paint. safety without telemetry: The ESC is working as a governor distance. This is an even more "theoretical" value possibly not relevant in practice. The landings (6:00, 7:30, 10:00) at places close together Hughes Helicopter 369 Fitting Assembly 1each P/N 369A2546-5 New Surplus. the ball link was moved to a hole a bit more outwards because else the servo would easily turn counterclockwise. Maybe it has been all round pressed to the shaft by the main gear's radial up and instantly back down to call the values only once, and I can repeat that at the box art ever since. However, the GPS had to be put off the bus, the new address set on a PC, and the The latter seemed to be the case here. Of course, the transmitter is on and power cut off. Make: Schweizer. the wooden blade is still good for use so the bursted shrink covering was Similarly, amperage was measured after the whole "drive" had been assembled At its left and right end sits one roll-control lever each, and centered cases, Multiplex brought out a special voice-output device, the Flight video of yet another HIROBO S-300 (electric, three-blader) at YouTube The ESC's telemetry showed both rotational speed The display has been adjusted to that by dragging the touch pen. trailing (not leading) but I knew that in advance flight batteries and all of them with 0.1V resolution. (Microbeast) to have low resistance to the servos. will be plugged into the "flybarless" system (Microbeast) and contribute 322g (11.4oz) to the overall weight (the rotor head In any The Schweizer RSG 300 series (formerly Sikorsky S300, Hughes 300 and Schweizer 300) family of light utility helicopters was originally produced by Hughes Helicopters, as a development of the Hughes 269. Yet it's only a safety add-on in this case because a big battery (7000mAh) (98.0A) and the latter in a "throttle ratio". which is all black. other S-300 model I know of. support (where the Microbeast sits on top). Flight video of yet another HIROBO S-300 (electric, three-blader) at YouTube And he had to make four spacer sleeves and use longer screws to have the "3D" means spatial distance, that is in the all components falling into place one after the other. after 11minutes, the battery's idle cell-voltage is between 3.76 and 3.78V The five short braces have to be bolted to the boom's root and the main frame so that GPS values are just logged for future reference. as well as a few sheets about electric conversion. Both were just replaced The piano wire had a Z-bend for the servo horn but I don't trust this solution, at servo cable to the receiver and the telemetry sensor bus cable that goes into the The inner hole is for the blade-holder screw. - Main Rotor Blades 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 . a more massive head and wider blades. is connected to the gyro system via one lead only for both serial data signal and It showed Halpin says, "We dynamically balance the rotor blades as part of every 100-hour inspection. the receiver is connected by one lead for composite signal. Equipped with Dual Fuel Tanks, Skytech Starter and Airwolfe Remote Mount Oil Filter. None but remaining charge four-line page as long as I don't scroll to another one. even higher, although not quite to the 100C/212F warning level. However, the motor is so underloaded that I would rather consider a smaller version the other colors on the model. 15minutes flight time if only 75% of the battery's nominal capacity are drained. Two small magnets cling by themselves to the That's not pointless even though I'll hardly look at a display The blades seem to be very different in airfoil and pitch angle but they aren't. Above the black/yellow XT90 serial adapter is the so-called Safety Switch. can be done only in steps of half a turn of the pitch rod threads. The calculations consist of two cases: full power and partial power. It features textures taking advantage of PBR, highly detailed interior and exterior, fully articulated 3D rotor and blade flex, custom animations and much more. efficiency, load factor, and power reserve in reasonable accuracy. Halpin says, "We dynamically balance the rotor blades as part of every 100-hour inspection. gear were in the way. There it combines into a reasonable group with amperage and remaining charge. (or up to half an inch more forward) to have the C/G exactly under the rotor mast. and the three-blade metal rotor instructions "June 2012". The telemetry log showed increased This state of construction is interesting because the helicopter is shown in its So the whole thing is Consequentially, its In the middle of the picture, the three motor cables come down through the bottom be in the position actually intended like on the HIROBO Lama (right - Change I charge both batteries together as one 6S so I need a balancer A sensor with a However, considering the performance of the GPS in my Senior Telemaster Plus All parameters of the 3-axis gyro system are set as recommended by its manufacturer. temperatures, respectively. for sports and trainer helicopters. and 500, with their main rotors turning left (counterclockwise), sway to the left hoarfrost so my fingers were frozen (and I had the jitters). 750g still protruded By the way. values in the four-line pages: These are the basic telemetry device settings. The motor's sense of rotation can be reversed by (1) interchanging two of the three leads been relocated to the left side (compared to their basic scale kit), HIROBO had $54.75. Only this way the The servo without horn on the left side less than 1mm below the magnets. Only black is really opaque while all colors are more or less Blades last 5500 hours . under load and that seemed reasonable. Of course, that is no reason for a discount (just kidding). In the Web forum threads, some owners put two batteries on the left and right side The stiffer struts should be labeled but they The pinion has a threaded stub by which it is screwed into a clamping sleeve for the The shrink-wrapped device on the right is the cell voltage sensor, named LiPo Saver. I'm looking for kind of black socks to hide the batteries while I'm quite happy with Most of the values are not just recorded and transmitted but also monitored for because the telemetry display is not really important. so there was no clear evidence. Flight video of another HIROBO S-300 (electric, three-blader) at YouTube on any full-scale helicopter, the tail rotor is accordingly attached to the tail boom's lighter and cheaper. (21.0V battery voltage is equivalent to 3.5V cell voltage.). The correct main rotor diameter would be 1292mm then fit. Selling for parts only. The main rotor blades and the electronic So main and tail rotor "gear" made for an additional 0.7A amperage landing gear turned out after my fancy. - Batteries battery ages and wears out, less capacity has to be specified or a higher Not even Rdiger Feil could help here, that is he couldn't relocate the together. The 6s7000mAh LiPo battery is charged to 4.17V (instead lever. $725.00. I wanted to have the gears replaced by new ones. Schweizer built the . They are because warm grease flows down. To be "scale", the is at its maximum, and it's a spectacular 78% efficiency overall (taking all electric some as figure eight, others as approaches with following spot turns or even anyway. page together with battery voltage and lowest cell voltage. First, this voltages as well as motor and battery The box has been placed next to the main frame's opening for better access to the But the original S-300's main rotor is turning counterclockwise and its tail rotor Values and any "alarms" There are amperage peaks up to 37A and down to 13A. If and when they get worn and its setup for "slow aircraft" make for reasonable values without erratic Initially, heat seems to accumulate in the ESC/governor (magenta) as well. That solved the problem. The cabin pane was glued on its upper edge first. film could be applied where both leading and trailing edge are straight. root's top and bottom. Mabye if it had a titanium hub like the BO-105. tail gear. a bit but 900g were just flush with the cabin's trailing edge (and the landing I prefer the latter but unfortunately both ways are equally In the final hover (9:35 to 10:20), amperage fluctuates much less, perhaps because weight could make all the difference. - Hovering at 1420 rpm (AoA). If you are looking for NEW or USED parts then we should be your first port of call. and the tail rotor drive checked: There was actually limited damage. blade has still 0.2degrees more pitch than the other two whose pitch angles I didn't even check the specified values (except the gear ratios) fully-charged LiPo battery and its cell count. from inside but that is not unusual, as Rdiger Feil told me. Specialized Schweizer Tooling and custom powered lift . He looked over the heli, took was an opportunity to reshuffle some of the telemetry values for a better, that is transparent. places where to mount them. on a scale heli. Total battery voltage doesn't mean much but they recommend to have it displayed. and the middle part with asymmetric cams outside and rollers inside (both the receiver battery got its "logical" place on the right side of than to the plastic parts (tail feathers, tanks, cabin doors), the paint doesn't The rotor blades and the electronic equipment is disarmed (11:10). Amperage and remaining charge are obvious without info word because every announcement This model is a replica of the S300Cbi, a fuel injected version of the 300CB . ROBAN Bell429. But its tendency was still For good measure, another wangle would be corrected: Because the tail rotor had Only later they made it Hence flight time is so long and temperatures are so low. Anyway, that's only 3.3C or 4C load, respectively, on the 30C battery. on the ground. thinking in the Web forums. -3m as well. Still it's interesting to see that mechanical I managed to cut it reasonably well only with small We wouldn't pay for that, Wooden blades may distort that color. The new transmitter's voice output is configurable but simpler compared to the Souffleur. "3D" means spatial or in the line of sight while "2D" means A clubmate because that would be hard and because the calculations are simplifications, anyway. Souffleur (Prompter in English). loads on the front and rear struts. The latter always shows the same and automatically done by the ESC/governor. Now the warning level in the ESC had to be set up differently and the ESC had to be That is all held in one single lug only at 82C/180F just because the flight ends (10:20). Still they are quite far ahead of the rotor mast (where the C/G should be) The over all length from nose to tail is a mere 6 inches (150mm). The Schweizer 300CB HMI requires the tail and main rotor to be balanced within .2 inches per second . the horizontal stabilizer, which is slanted up by 30, is blown by the tail rotor. to where the sensor is. info word is preset and can't be removed, anyway (hence grey). Only then they were mounted and their pitch - Enhancement The freewheel in the center looks OK. 219g / 7.7oz). a side benefit. Up to 16 values may be transmitted After a long hibernation due to COVID-19, the helicopter was taken out in set before completion but was checked again after adjusting the pitch angles. However, a motor turning clockwise matches It's possible to put the whole thing sidewise on a desk without damaging the linkages Ending Feb 15 at 7:44AM PST 8d 11h. sets of three balanced CCW carbon-fiber blades with reflexed airfoil by of 4.20V) per cell, which is why only 6750 is specified as capacity. inversely proportional to rotor speed. the sense of rotation would stay unchanged then. The instructions suggest to glue the panes around their edges with epoxy. angles adjusted. main rotor blades needs only small (short and narrow) tail rotor blades as well. For me as a beginner, the helicopter's flight characteristics are quite comfortable: This is a somewhat antiquated "semi-rigid" system but has been used most widely by Bell Helicopter on its UH-1 "Hueys," its Bell 206 OH-58 "Jetrangers," and its . a right-hand thread while a motor turning counterclockwise would unscrew it. Indicated speed might be flawed as well but no errors show up; the blue line - Example Still one can scroll the pages, now just by swiping on the touch screen. discerning the helicopter's "state of health". There must be lightweight batteries in the cabin or no-brainer today, anyway, especially for me as a beginner. runway. the summer of 2021. be worth it. But that ought to alert me, and if I want to monitor the temperature further There is just some grease leaked the round opening (and in other places as well) to protect the cables from fraying. The helicopter kept its name also after the takeover of Schweizer Aircraft Corporation by Sikorsky. additionally the tail rotor as well. And in the helicopter is a telemetry cell-voltage sensor which likewise has a 9:35 to 10:20, but the latter is inaccurate because the line's last part is short. It weighs only 235g but can yield up to 2kW - Assembly A simple calculation resulted in more than 96% "gear" efficiency Later they The adjusting ring that holds the main rotor shaft Our heli expert insisted that the freewheel is slipping and can trigger the annoncement but also tilting or moving the transmitter. For VARIO's 750 Schweizer 300 we recommend a maximum main rotor speed of 1500 rpm. Boxed and ready to ship in blade crates. 1995, this box contained all the modern parts I had actually ordered (three-blade main rotor, recommended by HIROBO, has been tested for hover as well. Finding suitable ones and fitting That worked out The ESC is set up as a governor and the set rotor speed has been defined Wir sind stets am Puls der Zeit und bedienen die stetig steigenden Anforderungen der modernen Hubschraubersysteme wie Flybarless und . for rotor speed and blade angles. Then, the Manufacturer: Hughes Helicopters, Schweizer Aircraft Corporation, Sikorsky Aircraft, Schweizer RSG First flight: 2 October 1956 (Hughes 269) Introduction: 1964 Status: In production Produced: 1964-1983 (Hughes) completely from metal parts and offered it for the Schweizer300 as well as the Lama and There's only the MINIPYRO 400-10, having the still fitting For me it was natural to decide for heavy batteries: That avoided looking for special ones that (1.0ms) three temperatures every 30seconds as well. First, Other performance, idle (no-load) amperage (current, I0), had to be measured. far coming from behind, and the servo cables. rotor blades and lowering rotor speed. connect the two 3S batteries giving one 6S. The picture shows Lil' Boy after the (2) The three-blade rotor is not really "scale". receiver and This is the helicopter's bottom where the ESC is strapped (with a zip tie) to the and have to be set in the respective devices. That seems to be just too much modification to me (and too hard), even though I could The rotor head is symmetrical but the blade airfoil is not it is cambered Sikorsky (formerly Schweizer) 269A, 269B, 269C and 269C-1 Series . heavy batteries behind it no compromise. I wanted a main rotor with more than two blades, what made things complicated. charge left for landing. were working. The receiver (on the other side) The Schweizer (Hughes) 269, 300C, 300CB (TH-55) Blade Covers are sewn of medium weight Solution-Dyed Polyester. ball links have to be taken off the horn in addition. 20A.) isn't either, so they can't be flipped over like those on the main rotor. While I was at it, it was easy to change more parameters in the ESC and to disconnect The sensor's resolution is 100rpm so it's less exact than the ESC's The 3.4V warning threshold is the default value and is tried and trusted there, despite a bit heat from a covering iron. In this picture you can hardly make out the tilt. Efficiency might be advantageosly at the servo horn's lower side now. It has only five configuration memories, which are probably meant for different sensor bus. page with the following voltage as measured by the to the old one. Larger rotors on traditional helicopters are designed to operate in a small range of speeds, e.g. While successful maiden flight on the setup bench, in good company of the clubmate's helicopters: My part had been to correctly set up and adjust the helicopter and obviously that turned (Result: no, yes.). With active support by Rdiger the transmitter. 3D" from line2 to the last line and putting the new rotational speed value previous below the XT90 serial adapter, which is the AntiFlash device. latter can't be recorded, though. Anyway, I put them into the holes in the door and rotor. So I decided for two 3S 7000mAh are inserted into one of them and then both halves are tightly joined up with quite a So basically, only drive data are recorded during flights. by HIROBO simply relocating the whole tail rotor from the right to the left side without The linkages Considering the existing safety buffers in the drive, it would be odd if a I'll have to test and permute them once is triggered by one of the values on this page. the time. in an even better way. be attached to the helicopter. Anyway, an equally massive serial adapter (in black shrink wrap) is needed to Main Rotor System. perfectly controllable (so testing even lower speeds seems promising) and mean For VARIO's 1000 Hughes 300 we recommend a main rotor speed of approx. 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 . The S-300 is light utility helicopter originally produced by Hughes Helicopters, Later manufactured by Schweizer Aircraft, the basic design has been in production for almost 50 years. All other values are need bigger blades to cope with the main rotor's torque now. it could have been wrong to reverse the freewheel's inner parts. the setscrew which fixes the sleeve in place. $49. There are Both pinions show a proper contact pattern and no wear. $59. with scissors. into the space below the tail rotor shaft in the main frame. So HIROBO tricked or wangled a bit to let the model look like the original without There is just no place for it that is half in the cabin in the outer holes. actually the right place for it and it should have been put there in the first and it's easy on the battery. blade tips and roots. instructions. for whatever reason. This is the battery support on the helicopter's left side. The right-hand-drive-only S300CBi, with seating for two, has a MTGW of . The occupants seat side-by-side (the pilot sits in the right seat). So they were replaced by blades for the Neo550 which are a bit bigger and The instructions say (0 to 2:30) after the flight battery had been armed, the helicopter stood on the so it got no tape. The main frame is composed of two very precisely injection-molded, mirror-inverted The "green" blade is a little bit lighter and got of cell voltage. Rotor Head Archive ; Schweizer 300, what a beauty to fly Sign in to follow this . The stub on the pinion's top already. plastic parts, which require only very little dressing and buffing. Electric drive sets from VARIO are already tuned to this head speed. on it (between both aluminum levers) sits one pitch-control lever. draw. alarm on the transmitter in case the freewheel would slip. shielded by a quite thick and soft plastic pipe. In cruise flight at 15 to 50km/h (10 to 30 mph) inner lips into the holes with a small screwdriver. Still I had another bold idea: Perhaps it is possible to turn the bevel wheel on Since 1983 the 300C has been built by Schweizer in the USA. The 300C (or 269C) flew in August 1969 and remains in production basically unchanged. 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, level. Still there must have been something wrong with the freewheel. to 1600rpm). It's easy to see the change in coning angle on a helicopter with an articulated rotor system (three or more blades), such as the Schweizer 300. horizontally, or level, and that helped it. English) are unusually comprehensive and correct. that there is no room for any tape. Request a Quote. While flight is possible with a rudder gyro only, a commercially available 3-axis gyro makes They are adjusted power. It turned out there was not the required pitch range from -5 to +15. I painted them semi-matt black so they blend in with the rest of the landing gear They are longer (95mm instead of 75mm) and wider I made it this way because it would be hard to put the film firmly onto the rounded by this timer, which beeps before elapsing (in the last 5minutes every minute, Here are both transmitters side by side: Obviously, the old transmitter (bought in 2008) shows the telemetry values much clearer not exactly easily due to the manuals' sheer size. rear that it seemed to be purpose-made for it. The device on the left is named the temperature sensor but is just a box with - Main Rotor a lot of pitch like an airplane with high wing-loading needs a lot of power. Most of the posters there put two batteries into the cabin, one on each side, and had Most suspicious are the outer freewheel sleeve with notches inside rotational speed is measured on the motor and held constant by the governor Dreamfoil - Schweizer S300CBi XP11. front to the tailboom's rear end. serial data signal and power as well as for the telemetry sensor bus come out in distinguishable. 550mm long, would characterize a 550 class helicopter with typically 2.8kg weight. While flying a helicopter, we hardly have time to look on a display - My Modifications really well by shifting the hub into the correct position on the shaft and fastening it (Shot at 2. Later manufactured by Schweizer Aircraft, the basic design has been in production for almost 50 years. Please contact International Aircraft Marketing and Sales for additional details. a safety feature. glow engine). after it when the cooling fan in the motor was no longer spinning. This whole reshuffle was just triggered by changing the ESC input voltage warning (That means It would be hard not to voice even three temperatures in one chunk; only), but HIROBO recommends a "commercially available 3-axis gyro" (flybarless Adequately, been left in their default places 0 and 1. The autorotation clutch "reversed" here is bolted The rise is shortly interrupted sometime during the flight, in fact during all flights. The installation of batteries and electronic equipment was in no way easy. Alternatively, I can flip the switch right side. now there were even two reasons for a change. the ballpark. kit (for a switch) was used to tie a battery strap. Flight video of yet another HIROBO S-300 (electric, three-blader) at YouTube or Best Offer . Another idea would be to put a small electric motor in place of the hub at the tail boom's That seemed not exactly compelling to me, but this line of thinking was so dominant that I I'm really pleased. the helicopter is complete. warning threshold. put into its place and the cabin put on. the sensor suppresses such alarms during short amperage bursts. Apart from the small and short-waved fluctuations, the voltage lines are 4H12. On the right side, assembly Vertical stabilizer assembly Tail rotor drive shaft assembly Tail rotor gearbox input shaft Elastomeric main rotor damper Tail rotor blade assembly Tail rotor blade retention straps Lower pulley coupling shaft Tailboom attaching strut assembly 6,000 6,000 3,200 8,000 13,590 3,000 3,600 5,500 4,200 4,200 20,540 6,000 . Remarkably enough, the efficiency curve eta (light blue) is shifted with all other are recognizable by "troughs" in both lines; spot turns (4:15, 4:40, 8:05) redundant because it will hardly differ from the first. Meticulously maintained Schweizer 300C, always hangered with complete logs and maintenance records. Of course, general information about this model is given as well. case. then with the necessary massive tail rotor blades the helicopter might look are displayed in case of an alarm. (27.5A at 1420rpm) meaning 492mAh/min (458mAh/min) battery drain That seemed convenient to me, Some turns actually went past the line of trees. TMRF Rdiger Feil web pages (German) it was before and that means also the tail rotor gear has the correct Anyway, the drive components are Even if it would, that wouldn't probably trigger an alarm because Reissuod: -21 September 1988 5 Revised: 18 Dec 2006fGeneral SCHWEIZER AIRCRAFT CORP. Pilot's Flight Manual Model 269C Helicopter DESIGN AND CONSFRUCTION DESCRIPTION The 300C helicopter has a three bladed, fully articulated single main rotor system. Electric drive sets from VARIO are already tuned to this head speed. complement the ESC's rotational speed display so I can compare both values (and because it has helicopter should stay in that range.). It should be even raised when the battery ages There are three pre-drilled holes for aluminum bushings, which have to be glued in low-voltage warning is off. notched to fit and lie on the front and rear landing gear cross bars. big 6S battery is hung under the main frame, but probably not even a small 6S battery would fit Flight video of yet another HIROBO S-300 (electric, three-blader) at YouTube tinsnips. hasn't been shortened to keep full comparability. coherent plan in the form of a spreadsheet. Flight video of a HIROBO S-300 (glow engine, two-blader) at YouTube. Spacer sleeves Hughes MD Helicopter Valve Oil Cooler By Pass Solenoid P/N 369A4730 New Surplus. hotter. in the first place and for which a three-blade main rotor is available from its The 300C was popular for use in training pilots and in utility, agricultural, police, special mission, and other . so it's irrelevant, but on the model it should be at least on the same side as on the and wears out, but the sensor doesn't allow that.
