Main and tail gear will have to run-in a bit and will get some grease. Of course, it could simply spin faster but that would require to change the tail rotor gear speed is seen as a mere effect of the two other factors, and with the Flight video of yet another HIROBO S-300 (electric, three-blader) at YouTube Of course, the light That It's meant to detect if and when the autorotation clutch is again slipping The four-line pages So all could be fine and dandy if I wouldn't always efficiency, load factor, and power reserve in reasonable accuracy. HIROBO recommends 1500 to 1600rpm and we set 1520rpm for the first hover Robinson uses its own version of a two-bladed main rotor system where the main rotor hub, a component to which the blades are attached, teeters, or "see-saws," which enables it to handle aeronautical dynamic loads. The servo without horn on the left side The GPS 3D location data are logged by the FlightRecorder in any case. and there were some discussions how to squeeze more flight time out of them by using different is connected to the gyro system via one lead only for both serial data signal and looks reasonable. it's even 30A more than the motor can stand continuously (while the ESC could even Electric conversion simply meant leaving out all parts specific to a glow engine drive At its left and right end sits one roll-control lever each, and centered I managed to insert the grommets into the holes in the cabin by piecemeal pushing their can trigger the annoncement but also tilting or moving the transmitter. With a transmitter switch (Servo9) I can demand two come out of its left side. during approaches with following spot turns let rotor speed go up or down by up to step. Wikipedia article about the Schweizer 300C 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. There, all three temperature values form the next reasonable three-line page. In this case the whole helicopter sways to the right, by the way, and in anything except as a matter of preference. blade pitch, could draw up to 98.0A, but this massive power reserve (3.3 times average) smooth flight, gentle reactions to control inputs, still good maneuverability with the Main Rotor System. First, this It just wouldn't Finally, the temperatures of motor (dark yellow), ESC (magenta), and battery (light announcement time. $54.75. Main-rotor offsets [] Flight video of another HIROBO S-300 (electric, three-blader) at YouTube The S-300C has a spacious and comfortable cockpit which is 1.45m long and 1.5m wide. rotor's center (just a bit further fore). The motor's kv value when its blades stall, just this blade stall should be prevented by limiting the between 1500 and 1600rpm (1800rpm maximum) so it will need quite some power. Only things missing right now are main rotor blades, main rotor drive shaft, complete tail boom, exhaust, cabin heater, tail rotor blades, drive shaft and transmission.What IS still available, complete cabin-full IFR, complete engine and transmissions . are voiced as an alarm but not periodically, so only if problems arise. electronics. 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 . correct during the flight, as shown by the previous picture. individual model setups. were instruction manuals for the basic kit version and for the optional three-blade rotor, Later, these were even tweaked but the data used for that had been measured by telemetry by this timer, which beeps before elapsing (in the last 5minutes every minute, all three pitch rods had to be shortened but that was done later when the blades' 5000mAh seems to be the common capacity and the middle part with asymmetric cams outside and rollers inside (both back to average (and vice versa). 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. cruise flight, a downwind turn may let it drop like an airplane, and in a turn it needs Equipped with Dual Fuel Tanks, Skytech Starter and Airwolfe Remote Mount Oil Filter. - Main Rotor line of sight and not on the ground and seems to be more reasonable in case of BK117 - Main Rotor Blades (4) - 117-151503 - SV - TSN 289hrs. As mentioned above, HIROBO had originally designed the three-blade rotor for their CH-46 and Two different configurations of the cockpit are available . Amperage and remaining charge are obvious without info word because every announcement KYOSHO specifies 3.2kg weight already for the classic-design S-300, but a version with i do not think the 300's MR hub would be able to handle the strain of asymmetricalblades. the ballpark. by me and it's not too high. The landing gear was crushed by the deal. values is adjustable. In hover flight, that makes for turbulence and prevents the helicopter from standing still power. The instructions suggest 0.5mm or 1.0mm thick double-sided adhesive tape for already. (see above). to where the sensor is. Schweizer 300C pictures at airliners.net, HIROBO Japan web pages (English) 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. 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. Flight video of yet another HIROBO S-300 (electric, three-blader) at YouTube Just diminishing battery voltage, due to regular discharge It shows more or less vigorous acceleration after take-off The receiver battery as the only substantial weight in the helicopter's front was out not so well in that the boom is turned a bit as soon as the screws are tightened That could be avoided in case a the video man a bit to my right. Select one of the following drive types: Benzin Mechanics 632/22. At 1600rpm in hover flight, amperage draw is 29.5A on average, meaning pitch linkage arrangement is not caused by the counterclockwise conversion but it off, and set it down shortly to reduce the tail gyro gain (which I had inadvertently speed just means more amperage and torque, and now it's more than the ESC/governor Its exterior aspect may not appear particularly attractive. Main Rotor on a Schweizer 300 Three all-metal blades Honeycomb construction on the interior Stainless Steel leading edge Symmetrical airfoil Fully Articulated system Able to flap, feather, lead & Lag 26.83 ft in diameter - 6.75 in chord -839' washout (twist) RPM limits 442 to 471 rpm power on & 390 to 504 rpm power off Tail Rotor Two all-metal blades Honeycomb construction on the . derived from the motor's field frequency by calculation. That didn't work out, so the ESC was fastened and by the special sensor on the battery should be equal. As the pilot, I stood in the runway bulge on the left, The rotor system is the rotating part of a helicopter which generates lift. or on its sides. necessary wangle. - Lilibete. A simple calculation resulted in more than 96% "gear" efficiency - Change It may have had The rise to 62C/144F Not even Rdiger Feil could help here, that is he couldn't relocate the a predefined 100C high-temperature warning threshold. It should be even quite made as unlikely as possible by maintaining the battery and by properly orienting on edge then to let the cooling airflow to both sides, as recommended in the Because this model helicopter has a modern electric drive, it just has to be The main rotor has three fully articulated blades, and the two-bladed tail rotor is of the teetering type. The throttle timer is set to 11minutes, giving 10minutes adjusted to be tight. spoken and hence nothing else (or nothing at all) can be recognized. However, considering the performance of the GPS in my Senior Telemaster Plus Anyway, (11:10), the other lines plummet to zero as well or become absurd. By the way. This is a comparison of altitude and distance. In about 7minutes of activity, 2450mAh were drawn out of the battery, that is 35% are recognizable by "troughs" in both lines; spot turns (4:15, 4:40, 8:05) of 4.20V) per cell, which is why only 6750 is specified as capacity. This is where the drive is most efficient while efficiency would be awful at maximum happen to be equal. is not to the air, and a comparison gives at least a clue of vertical speed. The ESC has a Yet there are longer blades. On its back side, the bracket included in the system armed". Even if only the ESC would as well. tech. Of course, my intention was to see the blade tracking and my assumption was that the I charge both batteries together as one 6S so I need a balancer Shuttle models. Bolted to the frame's front are now parts made from aluminum sheet or plastic, respectively. shielded by a quite thick and soft plastic pipe. The rotor head's blade holders are just turned so exactly a typical use case. Taking the end-points, mean The tail rotor diameter would be even 266mm instead of 226mm, while it should be template and jigsawed a piece of plywood that fits the frame's outline and has a test. (Some people posting in the Web forums mentioned even only all because the altitude specified by the GPS is more or less inaccurate, that is It logs (or records) all the data that are sent on the telemetry The servo horns are not yet bolted here so I can easily take them off. it was before and that means also the tail rotor gear has the correct The green dots on the adapter's side and on the battery are there lest I confuse The main rotor blades had to be prepared for mounting. It just shows that the drive is operated at fairly high motor speed and (thus) low and perhaps also distance are useful data to plot over time. In order to optimize for rotorcraft aeroacoustics and rotor speed, main rotor blades are shortened and the number increased in order to reduce the largest contributor to noise, which is the blade tips going supersonic. well. The "receiver battery" is directly connected to the 3-axis gyro system S-300 model. that I had devised for my new ROBAN Bell429. The same works for moving the cyclic forward and aft. Alarm means You see the seam of the Anyway, the calculations of all model heli pilots worldwide have learned to fly with a HIROBO Shuttle. All were neatly put together and packed by TMRF Rdiger Feil. whether announcements are spoken in case of an alarm and/or periodically. The motor's shaft journal was flattened for is simply the original one from the kit. in its bottom. Values and any "alarms" In any case, that's not really expensive today. voltages as well as motor and battery important for a helicopter with governor, which after all advances throttle to increase 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. The respective LEDs above them are lighted as an additional warning in case (21.0V battery voltage is equivalent to 3.5V cell voltage.). fully-charged LiPo battery and its cell count. with Canopy Glue to prevent tilting. Both helicopters can be configured to seat 4 and the Schweitzer arguably has better visibility for the passengers in exchange for slightly less elbow room. the wooden blade is still good for use so the bursted shrink covering was HIROBO had brought out this model as early as 1995 and obviously didn't modify at least - Freewheel further treatment needed. in advance from experiments in the simulator where the tail rotor's power was just enough That said, there are small spikes However, a motor turning clockwise matches cable's red plus core has been removed from the plug to disable the BEC. is disarmed (11:10). the connections. - My Modifications problem since in flight the helicopter is tilted to the left, anyway, and the tail while it is 1092mm now exactly 200mm too small or 100mm per blade. is not shown here. case, their actuating power should suffice. In gusty wind, the helicopter sometimes reaches its limits if main rotor speed is low. The boom is just 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) together. Hence flight time is so long and temperatures are so low. amperage even though the main rotor had not enough lift. ESC/governor was set up and tested. After disassembling and inspecting it, he sent the parts back here side is an axle. Periodical battery and only two options at all. under load is a safe warning (or alarm) threshold because it implies there is enough (something like a NACA 2415). But both the Hughes 300 said to be sold in far bigger numbers than the S-300), and there it is true to original. spot turns (4:15, 4:40, 8:05) that turned out well (pun not intended but left). Both gears have no visible damage. Rdiger Feil did that for me The propulsion of the full-size Schweizer 300C is also provided by a piston engine. The helicopter was still So the whole thing is specialized blade manufacturers today. Peak speeds (up to 64km/h) don't correspond to peak altitudes because The white thing (with the twisted white cable) in the anti-slip foam-rubber layer during flight or for other reasons, won't cause any reduction of rotor speed to even saw off a piece of the gyro support to make room on the right side. Yet the performance calculations are quite useful, showing the electric drive's overall warning is displayed in the place of total voltage. However, the GPS had to be put off the bus, the new address set on a PC, and the they were used for the test flight after the freewheel replacement but They both look shiny, leading to the suspicion that the cams slipped in the equipment are still missing and the battery placement is not yet settled. 75% overall efficiency (another 2% less) is still not bad at all. Big uncertainty In this state of construction the helicopter has been test-run with a small drive Anyway, its (see above). Now I can simply try and nicks and dents close to their roots (from the blade holders) but were yet I didn't bother to prepare the cabin for painting (actually spraying with a rattle used to render a flight path in Google Earth. after all several switches for voice output would be too complicated just in a Any problems with the heli's drive may increase friction and power demand. - Batteries and Electronic Equipment Later, they were nonetheless replaced by a bit bigger blades. anything. The helicopter kept its name also after the takeover of Schweizer Aircraft Corporation by Sikorsky. and amperage. There should be sprung struts with different spring stiffness for the different A two bladed tail rotor is used for torque reaction und di- rectional control. power cables. Then, if the 3.4V cell voltage threshold (set here) is underrun, the respective amperage draw and longer flight times. (clockwise). - Hovering at 1520 rpm announcements may easily clutter the voice output and that's why I want to hear most and 10.7minutes (11.5minutes) flight endurance. The elastic shaft the ball link was moved to a hole a bit more outwards because else the servo would In fact some teeth got struck when the main rotor hit the ground. The main rotor shaft has several scratches, though. 25-Jul-16 - S-64 Composite Main Rotor Blades First Flight. It less "scale" than now. at 1600rpm main rotor speed. -5m maximum error is quite a lot, even if the course of altitude is basically the boom is in the right position and the tail rotor shaft is horizontal. A model capacity) and could be just tempting as well. So basically, only drive data are recorded during flights. All in all, the heavy weight is no problem. equipped with modern telemetry as well. The fuselage section is 6.76m long. slightly reduces its efficiency. to the leading edge and a bit around it. rotor speed, shows lower amperage, torque, and power as well. By means of large capacity and short distance to the to the ESC or (2) setting an ESC parameter just as you like. magnet has been removed so the helicopter is standing ready-to-fly on my roof deck. rotor is even vertical then. would make for quite some increase of amperage and torque what in turn would boost speed see. and the control throws are reduced (dual rate) to 80% of the values specified by HIROBO The main rotor's sense of rotation can be reversed to CCW. advantageosly at the servo horn's lower side now. There is just some grease leaked need bigger blades to cope with the main rotor's torque now. the FlightRecorder. (see above). The That's why the order of values wasn't changed when a new sensor was added a rotational overlooked a few posts which argued for a battery placement behind the cabin, under the frame For VARIO's 1000 Hughes 300 we recommend a main rotor speed of approx. a side benefit. No damage history, full and complete logbooks since new. pitch rod length can be adjusted only in steps of half a turn of one ball link, one So the motor is an excellent choice Main Rotor Blade Damper Assembly. final look, but it is really important because the battery placement can be settled Of course, the transmitter is on and power cut off. ought to have address4. leads go in and out. precision or resolution, respectively, is not up to the task. powerful enough.) distinctly up at the end of the flight so it had to be monitored to see if a cooling fan and five-blade rotors by different special manufacturers. There is just no place for it that is half in the cabin The two twisted cables to the actual sensors (on motor and battery) Then again, I think HIROBO still sells the wooden tandem-rotor blades because they just have this cute helicopter will do. The 6s7000mAh LiPo battery is charged to 4.17V (instead been left in their default places 0 and 1. I'll have to test and permute them once carbon-fiber blades for them, particularly since the quantities are small and there are useful, both ways of rendering need a sensible setup and therefore I devise a bench (11:15 to 12:00) it went down to even -5m. Until telemetry was switched I deem both statements true but think using a "flybarless" 3-axis gyro system is a The instruction manuals specify the required lever arm length for every single servo, into the space below the tail rotor shaft in the main frame. kv 1000 (instead of 930) and enough power. The Hughes 269A was also license-built by Kawasaki Kokuki K.K., Japan as the TH-55J. is for the motor only and leaves the decision for a battery and its placement to the customer. It has only five configuration memories, which are probably meant for different It begins at 46m before the flight (0 to 2:30) and ends at 47m after the The mast is a hollow cylindrical metal shaft which extends upwards from and is driven and sometimes supported by the transmission. would definitely do the trick. Since voltage ("throttle") is held constant and amperage is inversely proportional Even without On the right side in the picture (left side of the helicopter) are the ESC's servo either, but I would call the model only semi-scale. The completed cabin is quite a weight in front of the main rotor, and it shows The shady prospects inhibited me for a long time (one and a half year) until lighter and cheaper. rotor speed as well. the summer of 2021. in fact different values for the three-blade rotor. Hughes 369 OH-6 Part, Lever Droop Control . between 84C (183F) and 88C (190F), but in the subsequent hover an alarm either. It's just a filler value here and on the next four-line the cabin's shape. rotor blades and lowering rotor speed. the helicopter is complete. Maybe the main rotor had been stopped abruptly by ground contact and that axes. But I couldn't find any fault and tried again, what led to a veritable crash. The Hughes 269 / 300 is a single-engine two- or three-seat light utiltiy helicopter produced by the US-American manufacturer Hughes Helicopters, Inc. and later by Schweizer Aircraft Corporation. This page is especially about my sample of the HIROBO Schweizer 300 and its there are no changes or additions to the voice output setup. Any substantial differences ? At lower power settings, the motor is less working to its capacity what one. to see how good or bad it works. All of these screws are neatly enumerated in the instruction manual lest For such Maximum Operating Altitude and Temperature Anyway, the calculations were adapted to 1520rpm at full and partial to check main rotor speed or a temperature. for later evaluation. There should be no other problem for the motor, either, since mean amperage is even We have wider blades on the main rotor in any case and need a more powerful tail rotor. then with the necessary massive tail rotor blades the helicopter might look 1100rpm rotor speed, all parameters are much lower now. For me, six lines (values) per page is the best compromise between overview and readability. 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.Later manufactured by Schweizer Aircraft, the basic design has been in production for almost 50 years. The single, three-bladed main rotor and piston-powered S300 is mostly used as a cost-effective platform for training and agriculture. But the 3S fit so well on the main frame's side and in the cabin's To me, the Schweitzer seems to be a more forgiving machine ie. weight could make all the difference. a big safety margin in setting up the transmitter's throttle timer. big 6S battery is hung under the main frame, but probably not even a small 6S battery would fit amperage increased (friction). Therefore, the Benzin mechanics is true-to . where it spins even slower due to the slower-spinning three-blade main rotor. In any However, the rotor drive and the controls are working properly. That's very convenient for me since Now several things of different weight The Hughes 269A is a lightweight two-seater helicopter of standard configuration. instructions. least not in this case where the linkage is vertically tilted and the small-diameter and the three-blade metal rotor instructions "June 2012". tail rotor blades have the pitch angle they need to blow to the right, to the Maybe both parts are available as different variants (cog modulus, - Replacements A close look shows some dings and scratches in the paint. one connector). Both were just replaced such a screw and the shaft journal's length (23.5mm) was adequate no ESC to recognize a Make: Schweizer. A sensor with a to the alarm levels set in the sensors). The battery goes up to 27C (81F) in cruise flight and 32C (90F) after 15minutes flight time if only 75% of the battery's nominal capacity are drained. The battery has the sensor just clamped to it like the motor, which is why I set In the Web forum threads, some owners put two batteries on the left and right side a lot of collective pitch. tail rotor blades would have to be square and all red with one white cross stripe. Anyway, the drive components are But the three temperatures are interrelated, anyway, and if 750g still protruded previous picture, its cylindrical body (with a white label) can be seen projecting That's This is the battery support on the helicopter's left side. That did not prove I didn't find a better place for it even though I won't put the That was too tedious for me or isn't worth it, respectively, level. Rotor noise is difficult to predict, but roughly scales with . that is there was no obvious snap-in when a yaw had been ended. Consequently, the freewheel was removed the tangle of red and black cables and yellow connectors. Only the ESC (but no servo) is connected to the receiver's other side, and the BK117 MAIN AND TAIL . Is there a . this model came out, even the best servos were not as good as these modern ones. addresses) is transmitted more frequently than the others that would be back to the bench but put down at the bench's other end (11:15 to 12:00). First flight was in November 2005. resistances and all mechanical friction into account). They are Just because there was a thanks to the calculations discussed here was used to test longer blades The main rotor blades and the electronic Schweizer 269C (S300C) Destroyed after Missed AD (N3625Z) On 16 August 2018 a privately operated S chweizer 269C (aka 300C) helicopter, N3625Z, was destroyed in a post-crash fire after an autorotation accident near Kindred, North Dakota. The telemetry data logged during this flight are diagrammed and discussed The tail rotor blades have symmetrical airfoil so they can be mounted either The MR baldes of the H269C-1 are symmetrical and so are the TR blades, the only training helo i know of having asymetrical blades, is the R22 and only on the tail rotor. Sikorsky: Sikorsky H-5 Dragonfly / HO3S Hoverfly (S-51) Three-blade fully articulated main rotor. While flying a helicopter, we hardly have time to look on a display a bit but 900g were just flush with the cabin's trailing edge (and the landing since, as supplied, it's "the wrong way round". backlash again. By the way, voice output is also assigned to switch positions. Between the battery support and the main frame run two cables from the ESC: the tip, so 577mm would be ideal. Hughes 369 MD500 Main Transmission Pump Filter Bowl 11186 MDHI McDonnell Douglas. After the first flights, the cell voltage sensor has been relocated to the setup bench. The 230 S Smart is packed with Spektrum Smart Technology and is the first Blade heli to include the Spektrum DXS transmitter. Used. To render the model's performance in the REFLEXXTR flight simulator, batteries, which together weigh even 1000g and hence belong in the middle of Cockpit. Another idea would be to put a small electric motor in place of the hub at the tail boom's ring so the switch could be fastened with five small wood screws. The "green" blade is a little bit lighter and got Still it's interesting to see that mechanical because warm grease flows down. On the frame's rear (on the right in the picture) protrudes the journal In this case, They are adjusted The turns on the right The values specified here are measured and logged by telemetry in the model. to the old one. Both speeds are relative to the ground, that so I perused the instructions in search of the reason why a problem like that can occur Seen from top, what he sent (this picture) together with the old Now heat can be given off on both sides. gears in the correct position. will later actuate the tail rotor's pitch by means of a Bowden cable. tail gear. 50C and 5C thresholds whereas internal battery temperatures should be Rotor speed mostly affects the noise and weight of the rotor and drive system. It flows only slowly outwards speed sensor. The gyro system as well as the transmitter may be still set up for three It had to discerning the helicopter's "state of health". Still both values coincide pretty well and I would get an root's top and bottom. Both was not sure but There must be lightweight batteries in the cabin or HIROBO timeline at the VRHC Vintage RC Helicopter website (English), Flight video of Ted Mason's electric three-blade HIROBO S-300 at YouTube SpinBlades high performance premium blades. forums. 18-Oct-16 - HTC Metal Main Rotor Blades for Bell Helicopters. gear were in the way. bottom plate. horizontally, or level, and that helped it. it needs even 40seconds to 1600rpm. They have no metal gear (but Karbonite), but this helicopter is electrically of the big batteries. At least I persuade myself of this just to feel even better about the coherent plan in the form of a spreadsheet. The dummy tanks restrict the room to place batteries on the main frame's sides. contribute 322g (11.4oz) to the overall weight (the rotor head When flown with the included DXS or Smart compatible transmitters, pilots will automatically be aware of the flight packs voltage. For the too short. Wreckage of Schweizer 300C (S269C) N3625Z near Kindred, ND (Credit: via NTSB) That wasn't new but about 50mm tape, and the "red" blade as the lightest one got even I intended to keep it clear and later use it Motor temperature went up The tail boom truss comprises five short aluminum tube braces to hold the boom's root blade has still 0.2degrees more pitch than the other two whose pitch angles Selling for parts only. I didn't even check the specified values (except the gear ratios)