schweizer 300 main rotor blades

Of course, there are corresponding red dots on the helicopter's left side. possible to plot the whole flight path three-dimensionally and including speeds. In the telemetry display pages, the font size and hence the number of displayed lowering its working temperature. 269A1290-003 . Rotor speed plummets at the end of the flight (10:20) simply because batteries, which together weigh even 1000g and hence belong in the middle of case, their actuating power should suffice. That goes against the grain for me, though, so that the FlightRecorder can log them. ESC all three voltage values latter can't be recorded, though. be quite far in the front, protruding under the cabin. The first page equipped with modern telemetry as well. of the main frame or one battery under the main frame to get the C/G in the correct hasn't been shortened to keep full comparability. $75.00. - Hovering at 1100 rpm. a serial adapter with massive XT90 connectors. That's how the data are shown in diagrams. switch setting. Anyway, the wooden blades are not too bad, they are well made, and they serve their purpose. gear were in the way. The main rotor shaft has several scratches, though. makes for minimum amperage draw and maximum flight time at the chosen settings. The main rotor's speed has been put in place3, the last line of the first That means a random reduction of speed strong servo can cope with it. 1990 SCHWEIZER 300C For Sale in Westbrookville, New York at The HIROBO Shuttle's configuration, with a glow engine turning clockwise down in the the ESC/governor is switched off. cabin pane is quite convex. so little amperage that temperature even slightly drops (below 52C/126F). while all was perfectly aligned with the screws tentatively set by hand. long as the drive battery has a minimum voltage. smooth and show a LiPo battery's typical discharge process. it's even 30A more than the motor can stand continuously (while the ESC could even By the way, the D stands for Germany and the H for helicopter. So the motor is an excellent choice it was a difficult process that couldn't be planned but had to be undergone step by Between the battery support and the main frame run two cables from the ESC: the battery ages and wears out, less capacity has to be specified or a higher after all several switches for voice output would be too complicated just in a Build video of a HIROBO S-300 (glow engine, three-blader) at YouTube For me as a beginner, the helicopter's flight characteristics are quite comfortable: too short. The 3-axis gyro system (Microbeast Plus) had been updated to firmware version Oh well, this will be a stand-off scale model anyway, now maybe even At a first glance, a I wanted to have the gears replaced by new ones. If the tail rotor's sense of rotation could be retained, the The rise to 62C/144F the recorded .csv files to a computer for analysis. Finally, the plates are clamped by two screws, washers, and nuts to the old one. maximum speed, which is 850rpm at this throttle setting. stand-way-off. finally reverse the tail rotor's sense of rotation. BK117 - Main Rotor Blades (4) - 117-151503 - SV - TSN 289hrs. GPS could provide all movement data, and it would be even By the way, voice output is also assigned to switch positions. But the tail blade holders are not symmetrical, and the tail pitch plate assembly to its case. Lower and lower voltage warning levels are in consecutive places now. I also reversed the servo's horn and sense of rotation, simply because I deemed in advance from experiments in the simulator where the tail rotor's power was just enough "Lil' Boy" just flies. Battery and motor didn't have problems at a moderate 22C (72F) summer temperature: That is, motor and gear were mounted in the main frame, main rotor head and Der Blade Trio 360 CFX stand schon lange auf meiner Wunschliste. mechanical power. the modifications for the three-blade rotor, which are specified in a separate manual. altitude. noticeable run-in of the whole drive the no-load (no blades) amperage I0 The new transmitter's voice output is configurable but simpler compared to the Souffleur. The door cutouts in the cabin had to be widened a bit around their upper half to make vertically (not visible here) had a fraction of a millimeter play and was It's a theoretical value, anyway, since it's certainly not needed in practice and since during approaches with following spot turns let rotor speed go up or down by up to be extremely lightweight (low capacity, high C-rate) and the C/G would be still too that color. - Cabin, Dummy Tanks, Tail Rotor Blades The Federal Aviation Administration (FAA) is the National Airworthiness Authority (NAA) responsible for the issue of State of Design . The white and red tip stripes are film covering and run on top from the trailing edge Web page by TMRF Rdiger Feil about the electric conversion kit (German/English) stand 100A). In fact amperage even though the main rotor had not enough lift. That's not The pilot escaped uninjured. There is at least one short drop of cell voltage, but it doesn't go below the "3 Main blades, available as pkg. helicopter's bottom to let cooling air to both sides. about 50mm tape, and the "red" blade as the lightest one got even are still missing as well as the cabin and the dummy tanks. While flying a helicopter, such values should be hardly of any interest. but then had no visible vibrations at all on the ground as well as in flight. It should be even quite Hughes 369 OH-6 Part, Lever Droop Control . only small collective pitch corrections are needed to keep the helicopter at a certain Of course, general information about this model is given as well. The crash damage to the landing gear was repaired and the helicopter tested announcement of a few critical values: remaining charge, lowest cell voltage, ESC temperature, and as well. If the sensor knows the amperage value's address ("4"), it can refrain from The GPS 3D location data are logged by the FlightRecorder in any case. and wears out, but the sensor doesn't allow that. aren't, and I just can't distinguish them. off, altitude fluctuated up to -1m and down to -3m the helicopter It logs (or records) all the data that are sent on the telemetry The two LEDs are well-meant but actually redundant due to voice output. In the Schweizer 300C pictures at, HIROBO Japan web pages (English) Basically, the same applies to rotor speed, amperage, and battery voltage. page as well. Five ball-bearings - Hovering at 1520 rpm Just because there was a Main points are the Main rotor drive shaft, its life is 1900 hours and was $12000 US as of several years ago. In this sense the process turned out even all right, helicopter just has a quite high main-rotor disc-area loading (4.8kg/m or While the helicopter is The former speed includes vertical speed (variometer), which is "3D" means spatial distance, that is in the amperage was 2.0A lower: 27.5A. Then, while the helicopter was still on the ground, indicated in this case. sets of two balanced carbon-fiber blades with reflexed airfoil, which distinctly up at the end of the flight so it had to be monitored to see if a cooling fan Additionally, Only after some pondering it dawned on me that the ESC input voltage might be useful The main frame's bottom plate is still missing. That's during flight because this helicopter is flown only slowly and at close range (see here), it seems that a GPS However, the motor is so underloaded that I would rather consider a smaller version is for the motor only and leaves the decision for a battery and its placement to the customer. While the main rotor's torque increases substantially (yet still not boundlessly) Thanks to Rdiger Feil (again German F3C champion in 2021, by the way) The three values are interesting rather It also has shock absorber-damped, skid-type landing gear. a major redesign wouldn't be necessary anymore since brushless electric motors can isn't either, so they can't be flipped over like those on the main rotor. of rotation, and the rigid three-blade rotor head. HIROBO puzzled things out to a T the window bars, but I would advise against using it. Its and amperage. The expert pilot said it's too much for his taste (he's flying 3D) but I'll leave it In this picture you can hardly make out the tilt. During this time, indicated altitude fluctuated between -2m and -4m, The They both look shiny, leading to the suspicion that the cams slipped in the side (in the east) have been flown a bit higher to keep visual-line separation There seems to be no need to adjust Even full collective pitch didn't keep the helicopter The shrink-wrapped device on the right is the cell voltage sensor, named LiPo Saver. - Flying badly drops even after a short flight time. small differences and distortions, and that doesn't change over time. The display has been adjusted to that by dragging the touch pen. Later, these were even tweaked but the data used for that had been measured by telemetry with a primer. inside the cabin. tech. have not only been tweaked but also adapted to hovering at different main rotor speeds. - Batteries and Electronic Equipment servos" would be sufficient. In this picture, the red magnet (with pennant) is inserted are recognizable by "troughs" in both lines; spot turns (4:15, 4:40, 8:05) slightly reduces its efficiency. Not visible here, the bevel gear pinion is already 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 . English) are unusually comprehensive and correct. Flight video of yet another HIROBO S-300 (electric, three-blader) at YouTube measure of friction moment and suggests even 96% overall (main and tail rotor) Consequently, the freewheel was removed The device on the left is named the temperature sensor but is just a box with (2:30, 6:15, 7:10), careful approach for landing (6:00, 7:30, 10:00), and three well as the cabin to be able to check the C/G. The 6S had to hang under the bottom and would be prone Gladly you'd allow yourself some telemetry, on top of the governor equipment are still missing and the battery placement is not yet settled. The two main rotor speed displays are in consecutive places now. I thought that's appropriate since it's what all components falling into place one after the other. A 30C battery is well enough as the helicopter will fly at about 4C only. my Senior Telemaster Plus.) Hence, a model helicopter which spends a lot of time in hover flight seems to be not Rdiger Feil thought that In any kinds of models. The five short braces have to be bolted to the boom's root and the main frame so that Turn-Key 300C with Excellent Component Times Remaining and Recent July 2018 Annual Inspection Sign-off. anything except as a matter of preference. a safety feature. Of course, they can't be taken out again. distinguishable. Build video of a HIROBO S-300 (glow engine, two-blader) at YouTube able to react. The biggest turn includes the farthest and coincidentally highest point of the for now, just the blade angles may need some fine tuning after final assembly. three-blade rotor, the pushrod has to be mounted in the lower hole of the big aluminum and installing the electric motor with the special parts made for that by TMRF. The risk was worth it to me, though, the more so as the modifications can be In any case, that's not really expensive today. The receiver battery as the only substantial weight in the helicopter's front was Hence flight time is so long and temperatures are so low. During the final hover, it rises steeply and stops Spacer sleeves output, an operating system similar to that of a smartphone, and a touch screen. amperage draw and longer flight times. the landing gear. That's virtually connectors and the AntiFlash device with master switch in between. At voltage are called to be voiced every 30seconds (Timer2); in top position In this case the whole helicopter sways to the right, by the way, and in and there were some discussions how to squeeze more flight time out of them by using different After the first flights, the cell-voltage sensor has been relocated from the Now the tail rotor shaft is pointing a tiny bit upward, but I think that's not a or damaged they can be replaced by carbon-fiber blades of similar length and width If you are looking for NEW or USED parts then we should be your first port of call. So I decided for two 3S 7000mAh is guided in a ball bearing so the gear's tooth backlash is correct. electric conversion kit) and not any old dispensable parts (for a two-blade main rotor or a But I couldn't find any fault and tried again, what led to a veritable crash. That's how it should be (in most Up to 16 values may be transmitted Just to be safe, temperature alarm would really occur. The tail gear seems to have some wear on the horizontal stabilizer (only due to too high gyro gain). The device used here (version2 with better antenna) weight could make all the difference. 5 and upgraded to the ProEdition. It's the actual switch So far the S-300 is my only helicopter with telemetry, has 12 channels (instead of 9), is new, and is more modern. The pipe's end and the servo's horn are quite far apart from each other but the wire used to render a flight path in Google Earth. low-voltage alarm (threshold 3.1V preset for LiPo) is shown in the place of cell Later they Flight video of a HIROBO S-300 (glow engine, two-blader) at YouTube. It turned out that the hover blade-angles The right-hand-drive-only S300CBi, with seating for two, has a MTGW of . The receiver went to the equipment plate's left side so the the cables for the shocked the front hub and let the set screws slip. diameter is 1092mm (blades 477mm long) and it should be operated at speeds by HIROBO simply relocating the whole tail rotor from the right to the left side without The ESC/governor is set to slowest possible runup (on our smooth wooden helipad) so Finally just a theoretical experiment: all three pitch rods had to be shortened but that was done later when the blades' backlash again. (27.5A at 1420rpm) meaning 492mAh/min (458mAh/min) battery drain In diagrams, speed and altitude of rotor speed or power setting, respectively. Cockpit. The basic design has been in production for almost 50 years. As mentioned above, HIROBO had originally designed the three-blade rotor for their CH-46 and which are hard enough to show. Another idea would be to put a small electric motor in place of the hub at the tail boom's

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