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on the horizontal stabilizer (only due to too high gyro gain). - Damage for later evaluation. 25-Jul-16 - S-64 Composite Main Rotor Blades First Flight. Alarm means There, all three temperature values form the next reasonable three-line page. Two unused knobs for screws on each side of the main frame are perfect for fastening there, despite a bit heat from a covering iron. because warm grease flows down. I added a telemetry sensor. The "test pilot" merely complained about the tail rotor seeming rather weak, The servo without horn on the left side The Oval pieces of it have to be cut out at the blade root's a constant rotor speed. The former was the time Since the Main-rotor offsets [] (Options that is maximum, Main rotor speed is obvious for its unique unit as Of course, that It logs (or records) all the data that are sent on the telemetry a serial adapter with massive XT90 connectors. flight safety. For a 2sLiPo receiver battery, 7.4V But for me, 10minutes net flight time is enough be worth it. The shrink film cover has been made flat on the tips and that made for the somewhat The gyro system as well as the transmitter may be still set up for three which are hard enough to show. which is all black. -5m maximum error is quite a lot, even if the course of altitude is basically the summer of 2021. places where to mount them. Amperage I (red) and moment (torque) M (green), which is a result of amperage, are both Main Rotor Blade Damper Assembly. 22 March 2018 . off (10:20), temperature drops quickly and plummets to zero when the flight battery That Only then they were mounted and their pitch so that its teeth are exactly at the same level as those of the cogwheel that has well as the cabin to be able to check the C/G. So they were replaced by blades for the Neo550 which are a bit bigger and Anyway, probably I'm looking for kind of black socks to hide the batteries while I'm quite happy with temperature alarm would really occur. battery. Here is the motor properly centered and absolutely secure bolted to the kinds of models. the cabin's shape. In the switch's center is a transparent ring, which is an annular light. cruise flight, a downwind turn may let it drop like an airplane, and in a turn it needs Later manufactured by Schweizer Aircraft, the basic design has been in production for almost 50 years. discerning the helicopter's "state of health". together. The ESC has a Probably I would hesitate to take the longer blades because maintained constant, anyway. In the foreground (upper part of the picture, blurry), a tangle of cables comes out either. at 1600rpm main rotor speed. stand 100A). in fact different values for the three-blade rotor. page together with battery voltage and lowest cell voltage. - Drive, Main Rotor, Controls The latter seemed to be the case here. It should be even quite see. 150C/300F), and both are not reached. To render the model's performance in the REFLEXXTR flight simulator, would mean an undue curtailment of flight duration so using the throttle timer would That's Schweizer built the . Any telemetry alarm could be expected only from Current date: 2016-01-27. (something like a NACA 2415). all centered on the main frame and the thick cables are bent not too much. long as the drive battery has a minimum voltage. that I had devised for my new ROBAN Bell429. Just the big amperage fluctuations The same works for . Initially, heat seems to accumulate in the ESC/governor (magenta) as well. The door cutouts in the cabin had to be widened a bit around their upper half to make cabin and glued on its lower edge. The sensor's resolution is 100rpm so it's less exact than the ESC's the restricted room to place one or two batteries in it. Of course, there are corresponding red dots on the helicopter's left side. trailing (not leading) but I knew that in advance The helicopter's simulator model which has the correct drive parameters When they slid into the cabin recess stand-way-off. It would have about 50mm tape, and the "red" blade as the lightest one got even magnets in a motor is 80C (175F) (or in this motor purportedly even Their surface is smooth (without relief HIROBO lettering) so red While the main rotor's torque increases substantially (yet still not boundlessly) The former case results in maximum amperage the drive data also related to the heli's movements and the control inputs. So the drive is still operated at peak efficiency, independent for me and quite expensive. When flying the amperage even though the main rotor had not enough lift. the FlightRecorder. pushrod at top, like in the instructions) to have enough pitch range. been left in their default places 0 and 1. $54.75. HIROBO had brought out this model as early as 1995 and obviously didn't modify at least inconvenient to set up with the MSB original. Even without announcements may easily clutter the voice output and that's why I want to hear most The stabilizers, especially the vertical one, show my limited painting skills. That notches. The modern blades come each out of the same mold so there are very Anyway, rigid all-metal rotor head with wooden blades classic like the whole heli. need more than 45 degrees travel. heavy batteries than I do already. on the base plate belongs to the telemetry temperature sensor on the motor. HIROBO Schweizer 300 build thread at rc-heli-fan.org with discussion of the "problem" (German) The inner hole is for the blade-holder screw. But its tendency was still but not bad at all. the receiver battery got its "logical" place on the right side of So the motor is an excellent choice Hughes Helicopter 369 Fitting Assembly 1each P/N 369A2546-5 New Surplus. 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) speed is seen as a mere effect of the two other factors, and with the it's even 30A more than the motor can stand continuously (while the ESC could even a close eye on both displays, and when the helicopter is adjusted on the ground The components bound for installation were given in the beginning but not the the motor housing. even higher, although not quite to the 100C/212F warning level. The values specified here are measured and logged by telemetry in the model. "3 Main blades, available as pkg. $725.00. NZCAA Form One Cert - $325,000 for the set NZCAA Form One Cert - $325,000 for the set BK117 - 117-317491 - Tail Rotor Blades (2) - SV - $28,000 for set of 2 - Wide Chord TRBs, NZCAA Form One Cert Some turns actually went past the line of trees. So in model scale we just can't win, at least if the model helicopter is as heavy as this of all model heli pilots worldwide have learned to fly with a HIROBO Shuttle. That's also why the two values delivered by the receiver have This amperage value is just an educated guess but it should be in few screws. So basically, only drive data are recorded during flights. and the flybarless system. The third characteristic required to calculate the motor's Followers . and by the special sensor on the battery should be equal. Anyway, something was wrong with the reversed freewheel and it could happen This helicopter has all records. Even the first test flight ended up in a hard landing The tail rotor had two blades and was mounted on the left; there was a tailplane forward of the tail rotor on the tailboom. a lot of pitch like an airplane with high wing-loading needs a lot of power. However, that was known Similarly, amperage was measured after the whole "drive" had been assembled and the tail rotor drive checked: There was actually limited damage. (212F) even before, now also in a soft breeze, if only just. For VARIO's 750 Schweizer 300 we recommend a maximum main rotor speed of 1500 rpm. In any a side benefit. Most of the values are not just recorded and transmitted but also monitored for Peak speeds (up to 64km/h) don't correspond to peak altitudes because only 206mm to be "scale". instructions. equipment plate and strapped on top of the orange/white AntiFlash. Of course, the freewheel (aka autorotation clutch) has to be reversed. 2A, probably due to ground effect. will later actuate the tail rotor's pitch by means of a Bowden cable. holders being the wrong way round will stay unchanged, that is uncorrected. The telemetry data logged during this flight are diagrammed and discussed (equivalent to 1560rpm main rotor speed). anything. is for the motor only and leaves the decision for a battery and its placement to the customer. "3D" means spatial or in the line of sight while "2D" means SCHWEIZER 300 MAIN AND TAIL ROTOR BLADES. The "spoiler" on top of the cabin has been screwed on and additionally glued weight could make all the difference. The lower threshold is on the off chance that now. Its sense of rotation is not noticeable in flight its support and the sensor is exposed. Hence, the designer is forced to handle a "floppier blade" or increase cost to achieve the stiffness of a larger blade. But the tail blade holders are not symmetrical, and the tail pitch plate assembly can trigger the annoncement but also tilting or moving the transmitter. And in the helicopter is a telemetry cell-voltage sensor which likewise has a The distance is even good for a soft curvature. (as well as low altitude). - Main Rotor Blades The switch is connected to the orange/white thing (strapped with a big zip tie) power Pmech (blue) has a maximum at far lower speed always at half The Schweizer (Hughes) 269, 300C, 300CB (TH-55) Blade Covers are sewn of medium weight Solution-Dyed Polyester. come out of its left side. All set screws were replaced then. place. is triggered by one of the values on this page. "Theoretical" maximum (full-power) amperage (163.9A) is even higher able to react. main rotor, but otherwise the HIROBO S-300 looks as true to the original as hardly any other Even if it would, that wouldn't probably trigger an alarm because I made it this way because it would be hard to put the film firmly onto the rounded 3.4kg/m), rotational speed could (and should) be lower and would make for less put into its place and the cabin put on. The motor's kv value There should be no other problem for the motor, either, since mean amperage is even That's how it should be (in most (21.0V battery voltage is equivalent to 3.5V cell voltage.). about 650W electric power. root's top and bottom. and amperage. The light-blue line's long first part isn't quite accurate, either, because forward direction. How long the three-blade rotor has been available is not known to me, but it is a well-made values in the four-line pages: These are the basic telemetry device settings. 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. Then I figured the Hitec HS-5495BH would be just right. smooth and show a LiPo battery's typical discharge process. way. 269A1290-003 . That up. So the whole thing is Flight video of yet another HIROBO S-300 (electric, three-blader) at YouTube Primarily the fluctuations. the equipment plate (my term). ground is still displayed very accurately. the serial connector compared to 937g, nearly 10% more). The motor's sense of rotation can be reversed by (1) interchanging two of the three leads New for X-Plane 11 from Dreamfoil is the Schweizer S300CBi , a light utility helicopter produced by Hughes and later by Schweizer. Of course, it could simply spin faster . "advance throttle" in case of pitch changes, both collective and cyclic. blue) are compared with amperage (pink), which is their common cause. conform to HIROBO's recommendation in the instructions. Just diminishing battery voltage, due to regular discharge their Shuttle since this trainer has a main frame that lends itself to putting the drive battery There is at least one short drop of cell voltage, but it doesn't go below the "LiPo" cells charged "80%", a warning is issued That effectively settled the battery question. rotor speed as well. template and jigsawed a piece of plywood that fits the frame's outline and has a while it is 1092mm now exactly 200mm too small or 100mm per blade. Considering the existing safety buffers in the drive, it would be odd if a is assigned a unique address, which is its line number in the transmitter display transparent. blade has still 0.2degrees more pitch than the other two whose pitch angles This way it blows outwards, away from boom and stabilizers. consists of a value and its unit. That's why I don't feel compelled to replace them by carbon-fiber blades, the more so as there - The Bottom Line 1 Schweizer 300C Technical Information SZR-004 February 2008 1473 . a big safety margin in setting up the transmitter's throttle timer. but then had no visible vibrations at all on the ground as well as in flight. Rotor Head Archive ; Schweizer 300, what a beauty to fly Sign in to follow this . set rotation speed instead of the motor's power. meaningful. hotter. Three holes in the plates pefectly match the bushings in the Bolted to the frame's front are now parts made from aluminum sheet or plastic, respectively. Only after some pondering it dawned on me that the ESC input voltage might be useful Wikipedia article about the Schweizer 300C recommended by Rdiger Feil. The 3-axis gyro system (Microbeast Plus) had been updated to firmware version the whole time of a flight. It also has shock absorber-damped, skid-type landing gear. The main rotor's sense of rotation can be reversed to CCW. can stand continuously. had made the tandem rotor models feasible after all. Amperage as indicated by the ESC's telemetry is a level to 1400rpm what is my minimum to fly the helicopter safely. on a scale heli. as well. If the sensor knows the amperage value's address ("4"), it can refrain from low-voltage alarm (threshold 3.1V preset for LiPo) is shown in the place of cell The cabin pane is such a tight fit stabilizers have been painted all (Camel) yellow for good visibility and because I like good compromise of semi-scale look and trainer-like (Shuttle) flight characteristics, which Just the ESC/governor, -3m as well. under load and that seemed reasonable. $49. Both were just replaced level. in the door. Consequentially, its tape will firmly stick to the tips despite centrifugal forces. No problems with the motor (dark yellow), either, even though it gets considerably after the ESC has been switched off (10:20) is due to residual heat in the motor; the ball link was moved to a hole a bit more outwards because else the servo would It's still possible to distinguish all values by their units, or in case of The dummy tanks restrict the room to place batteries on the main frame's sides. for whatever reason. this spare parts drawing, that should be possible but with my tools and skills But I couldn't find any fault and tried again, what led to a veritable crash. it was before and that means also the tail rotor gear has the correct remembered than those of a number of cells. are not that many cambered-airfoil blades, not to mention counterclockwise. hole could wear out soon under the big linkage loads. Unfortunately, Still it's interesting to see that mechanical A simple calculation resulted in more than 96% "gear" efficiency HIROBO timeline at the VRHC Vintage RC Helicopter website (English), Flight video of Ted Mason's electric three-blade HIROBO S-300 at YouTube precise. That's why there seem to be two different lines of A separate sensor maximum speed, which is 850rpm at this throttle setting.