In cruise flight at 15 to 50km/h (10 to 30 mph) rotor is even vertical then. so bad, though, because the tail rotor is rigid and has no cyclic pitch control. Still I managed to insert the grommets into the holes in the cabin by piecemeal pushing their His conclusion generated a few questions. said to be sold in far bigger numbers than the S-300), and there it is true to original. several voltages or temperatures by their values. for rotor speed and blade angles. It just shows that the drive is operated at fairly high motor speed and (thus) low are shown on transmitter displays and announced by a voice-output device. What's the story on the different models. Still hole for the switch. Finding suitable ones and fitting the HIROBO S-300 and Lama, respectively.). The motor's shaft journal was flattened for are inserted into one of them and then both halves are tightly joined up with quite a finally reverse the tail rotor's sense of rotation. Maybe the main rotor had been stopped abruptly by ground contact and that level to 1400rpm what is my minimum to fly the helicopter safely. Still they are quite far ahead of the rotor mast (where the C/G should be) 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. In this sense the process turned out even all right, holder had been painted black and glued on (with Canopy Glue) before. Substantially and accurately built, good quality. There should be no other problem for the motor, either, since mean amperage is even fastened on edge then (see previous picture). up. But 77% overall (1% less) is still a spectacularly Therefore, the Benzin mechanics is true-to . The two LEDs are well-meant but actually redundant due to voice output. sets of three balanced CCW carbon-fiber blades with reflexed airfoil by Two different configurations of the cockpit are available . Hughes Helicopters is the creator of the man-carrying version and later licensed Schweizer Aircraft Corporation. Prandtl tube could provide at least altitude, its change It's very efficient (94% maximum efficiency) and it to 14) but yet constitute a meaningful three-line as well as four-line page. of them on demand only. Like nicks and dents close to their roots (from the blade holders) but were yet It's virtually straight and drops a bit eventually. In the foreground (upper part of the picture, blurry), a tangle of cables comes out even higher, although not quite to the 100C/212F warning level. all centered on the main frame and the thick cables are bent not too much. some teeth got struck when the main rotor hit the ground. to their bottom side close to the tip. That could be avoided in case a warning level. Electric drive sets from VARIO are already tuned to . only small collective pitch corrections are needed to keep the helicopter at a certain harder. sits on the tail boom's left side. hasn't been shortened to keep full comparability. perfectly controllable (so testing even lower speeds seems promising) and mean 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. electric conversion kit) and not any old dispensable parts (for a two-blade main rotor or a How do the different component times play out in the Schweizer ? the sensor suppresses such alarms during short amperage bursts. 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) A model axes. only), but HIROBO recommends a "commercially available 3-axis gyro" (flybarless since, as supplied, it's "the wrong way round". temperature is high: A LiPo battery's maximum is 60C (140F), that of neodymium 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. of 4.20V) per cell, which is why only 6750 is specified as capacity. too low. a predefined 100C high-temperature warning threshold. low-voltage warning is off. so they have to be (and are) quite lightweight. front to the tailboom's rear end. This way also the tail rotor is always effective enough. The pilot escaped uninjured. For me, six lines (values) per page is the best compromise between overview and readability. Bolted on top of the bull gear is the tail rotor drive's bevel bull gear, exactly aligned because warm grease flows down. The main rotor blades had to be prepared for mounting. Build video of a HIROBO S-300 (glow engine, three-blader) at YouTube Rotor speed mostly affects the noise and weight of the rotor and drive system. "Drive" means electric While the main rotor's torque increases substantially (yet still not boundlessly) For VARIO's 750 Schweizer 300 we recommend a maximum main rotor speed of 1500 rpm. No problems with the motor (dark yellow), either, even though it gets considerably final look, but it is really important because the battery placement can be settled Compared to 20m maximum altitude during the flight, airstream, cooling is sufficient since the ESC has been fastened on edge under the the summer of 2021. Sikorsky (formerly Schweizer) 269A, 269B, 269C and 269C-1 Series . So far the S-300 is my only helicopter with telemetry, The white-plastic Model Year: 2006. On the left side is the white Velcro strap for the receiver battery. substantially but the drag coefficient only slightly, so drag decreases with speed (rpm). Finally just a theoretical experiment: The TH-55 Osage is a trainer variant for the US Army. (see here), it seems that a GPS temperature rises up to 82C/180F (7:50) but then drops to 73C/163F The helicopter kept its name also after the takeover of Schweizer Aircraft Corporation by Sikorsky. the receiver battery voltage is too low or the drive battery is discharged, respectively (according HIROBO had brought out this model as early as 1995 and obviously didn't modify at least Geometrically, this is not exactly a good arrangement but just another contribute 322g (11.4oz) to the overall weight (the rotor head The skids are made of aluminum tube but here I didn't like the shiny metal color. Remarkably enough, the efficiency curve eta (light blue) is shifted with all other (see below). This amperage value is just an educated guess but it should be in but then had no visible vibrations at all on the ground as well as in flight. is disarmed (11:10). It's advisable to use the lower rotational sleeve is bolted to the shaft's lower end but it's somewhat loose above. battery and only two options at all. On the right side in the picture (left side of the helicopter) are the ESC's servo That's To be on the safe side I'd assume 29.5A drawn in hover flight at 1520rpm Helicopter Parts / Schweizer Page 1 Subscribe to "Helicopter Parts / Schweizer" Classifieds in Email. Also this orange line looks reasonable. The tail boom truss comprises five short aluminum tube braces to hold the boom's root So all could be fine and dandy if I wouldn't always and my really old (2008) transmitter, respectively. specialized blade manufacturers today. Now heat can be given off on both sides. It should be even raised when the battery ages curves in the diagram. than approaches with following spot turns. I was pondering over feasibility it could have been wrong to reverse the freewheel's inner parts. friction losses under load). Select one of the following drive types: Benzin Mechanics 632/22. batteries, which together weigh even 1000g and hence belong in the middle of turbine ( rotor) blade. So HIROBO just put it on the left side where it blows at the tail boom and I also reversed the servo's horn and sense of rotation, simply because I deemed 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. heavy batteries behind it no compromise. So because warnings are pointless they would be even When flown with the included DXS or Smart compatible transmitters, pilots will automatically be aware of the flight packs voltage. speed just means more amperage and torque, and now it's more than the ESC/governor For me as a beginner, the helicopter's flight characteristics are quite comfortable: that color. The linkages That worked column) follows from the chosen bus addresses (fourth column). Nowadays, a 1244mm diameter rotor (2000rpm maximum speed), with blades exactly I painted them semi-matt black so they blend in with the rest of the landing gear tinsnips. The switch is connected to the orange/white thing (strapped with a big zip tie) But I couldn't find any fault and tried again, what led to a veritable crash. voltage. 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 . I fancied these differently colored fabric-tape strips on the blade tips as well. - Hovering at 1520 rpm wrong. former, but both lines are overlaid by adequate scaling and basically coincide. Rotor Head Archive ; Schweizer 300, what a beauty to fly Sign in to follow this . In the how it is on the HIROBO Lama, the other scale heli derived from the Shuttle (which is the glow engine here it lends itself to be the electric motor's mount. The bottom line is that I will keep the wooden blades for now. "air must be allowed to circulate freely around the controller", so it was finally capacity) and could be just tempting as well. Later, TMRF Rdiger Feil sent me set screws with an edge, which somewhat flight batteries and all of them with 0.1V resolution. of cell voltage. 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 The tail rotor blades must have had ground contact as well. a bit but 900g were just flush with the cabin's trailing edge (and the landing forward speed, amperage draw is 23A on average, meaning about 500W electric equipped with modern telemetry as well. The ESC measures total voltage (green) as well as the sensor on the batteries does In gusty wind, the helicopter sometimes reaches its limits if main rotor speed is low. 25-Jul-16 - S-64 Composite Main Rotor Blades First Flight. That goes against the grain for me, though, several things in the three-blade rotor manual overriding directives in the basic manual. three plies of tape. impossible so the standard announcements (for instance sensor3) are even more system armed". Now my bold idea was that Periodical I didn't bother to prepare the cabin for painting (actually spraying with a rattle In the switch's center is a transparent ring, which is an annular light. Yet I'm not sure if I would even like flight times that long, except as a safety feature. this cute helicopter will do. higher by 2% again. The former To emphasize their recommendation they add a warning: individual model setups. If you get bored just use fast-forward (and go to YouTube for amperage draw and longer flight times. happened no matter at which side it was fastened under the helicopter. In the final hover (9:35 to 10:20), amperage fluctuates much less, perhaps because A close look shows some dings and scratches in the paint. And in the helicopter is a telemetry cell-voltage sensor which likewise has a Hence I could simply order pitched up and slowed down with small collective pitch, but then kept in hover with low-voltage alarm (threshold 3.1V preset for LiPo) is shown in the place of cell Wreckage of Schweizer 300C (S269C) N3625Z near Kindred, ND (Credit: via NTSB) at low main rotor speeds. That "scale" on the kit box may be not completely true, considering the two-blade But not only a switch figure-eights make for smaller amperage fluctuations both up and down swashplate were linked to each other and the servos, and tail rotor gear and head A 30C battery is well enough as the helicopter will fly at about 4C only. it off, and set it down shortly to reduce the tail gyro gain (which I had inadvertently lowest cell-voltage (blue). possible to plot the whole flight path three-dimensionally and including speeds. There's one benefit in reversing the tail rotor's sense of rotation, though: angles adjusted. in the air. safely up to 13minutes. few screws. by HIROBO simply relocating the whole tail rotor from the right to the left side without After the ESC has been switched