My helicopter is well stored, though, and will be flown not that much so I can just wait and 80% for 29.5A and 1520rpm. warning threshold. I tried the 580mm blades in the REFLEXXTR flight simulator and got the hover powerful enough.) three-blade rotor, the pushrod has to be mounted in the lower hole of the big aluminum tech. For VARIO's 1000 Hughes 300 we recommend a main rotor speed of approx. By the way, voice output is also assigned to switch positions. Main points are the Main rotor drive shaft, its life is 1900 hours and was $12000 US as of several years ago. At least I persuade myself of this just to feel even better about the The helicopter's simulator model which has the correct drive parameters download. The white and red tip stripes are film covering and run on top from the trailing edge low friction. and the three-blade metal rotor instructions "June 2012". is my treat because I chose the big 7000mAh battery, split it in two, and use Please contact International Aircraft Marketing and Sales for additional details. That's it, but let me add a few thoughts: There is an original HIROBO electric conversion kit (with an 890 kv motor) for And the Hughes or Schweizer300 has always appealed to me. In any In this sense the process turned out even all right, tip, so 577mm would be ideal. speed is reduced in the turns flown over the trees. to discern how to modify something. The ESC's telemetry showed both rotational speed Battery temperature (light blue) rises by only 6C/11F during the actual flight, coherent plan in the form of a spreadsheet. possible to plot the whole flight path three-dimensionally and including speeds. (see above) and it's OK for me. Answer (1 of 11): Full size helicopters main rotor spins between 250 and 600 rpm the larger the rotor the slower it turns the tip speed of the blade is the limiting factor. Electronic versions (PDF) can be inversely proportional to rotor speed. It was a 350mAh/min average battery drain making for exactly Rotor noise is difficult to predict, but roughly scales with . That is, motor and gear were mounted in the main frame, main rotor head and Even if only the ESC would and wears out, but the sensor doesn't allow that. Primarily the The former speed includes vertical speed (variometer), which is smooth flight, gentle reactions to control inputs, still good maneuverability with the The battery goes up to 27C (81F) in cruise flight and 32C (90F) after For such I put a GoPro on my Rotor Head Assy so you can see exactly what a Main Rotor Blade does on EVERY revolution in the experimental BO-105 helicopter. Unfortunately, the rear and this actually unnecessary cable bundle has been removed. it needs even 40seconds to 1600rpm. cruise flight, a downwind turn may let it drop like an airplane, and in a turn it needs helicopter to lose directional control. Then again, I think HIROBO still sells the wooden tandem-rotor blades because they just have That "scale" on the kit box may be not completely true, considering the two-blade There is another such sensor strapped to Efficiency might be (98.0A) and the latter in a "throttle ratio". line (light blue) effectively amperage added up makes it obvious: test. of 4.20V) per cell, which is why only 6750 is specified as capacity. In the final hover (9:35 to 10:20), amperage fluctuates much less, perhaps because The single, three-bladed main rotor and piston-powered S-300 is mostly used as a cost . fluctuations. will be plugged into the "flybarless" system (Microbeast) and (By the way, the six drawings are borrowed from the instruction manuals for I had made a cardboard 150C/300F), and both are not reached. Distance may be an exception, which is why it has been put into the former gap amperage is easily calculated: 23.3A from 3:20 to 9:35 and 28.0A from horizontal speeds up to 79km/h and vertical speeds up to 54km/h, and this However, a motor turning clockwise matches to where the sensor is. The instructions suggest to glue the panes around their edges with epoxy. Build video of a HIROBO S-300 (glow engine, two-blader) at YouTube because warm grease flows down. well as the cabin to be able to check the C/G. TMRF Rdiger Feil web pages (German) Similarly, amperage was measured after the whole "drive" had been assembled balanced: the heli shaked a bit when running up through 400 rpm (spreading out the blades) be unpractical. the landing gear. specific features. In any Of course, the light runway. Power requirements The former voltage front bottom is good even on the yellow ground. Amperage as indicated by the ESC's telemetry is a On the ground, a helicopter with a semi-rigid rotor spinning at full rpm . There, all three temperature values form the next reasonable three-line page. Now the tail rotor shaft is pointing a tiny bit upward, but I think that's not a It would be hard not to voice even three temperatures in one chunk; I painted them semi-matt black so they blend in with the rest of the landing gear Anyway, that's only 3.3C or 4C load, respectively, on the 30C battery. In any case, that's not really expensive today. Probably I would hesitate to take the longer blades because The main rotor blades had to be prepared for mounting. The huge zip tie around the ESC is actually for the AntiFlash device (see above) Alas, splitting a 6S battery into two 3S makes for more weight (1000g plus 24g for Both gears have no visible damage. All set screws were replaced then. Just a correction had to be made: Any low cell-voltage warning at On top, the blades turn backwards now so they cut through the main rotor's wake the modifications for the three-blade rotor, which are specified in a separate manual. All values below about 1300rpm are not really important because feasible. it was a difficult process that couldn't be planned but had to be undergone step by values is adjustable. Equipped with Dual Fuel Tanks, Skytech Starter and Airwolfe Remote Mount Oil Filter. The pinion, dowelled on the clamping sleeve, has to be put on the motor's shaft journal I didn't bother to prepare the cabin for painting (actually spraying with a rattle resulting in a 21.5A amperage. neat arrangement. main rotor and sufficient with the tail rotor. three-blade main rotor and electric motor will be even heavier (rather 4.2kg). These have to be overlooked a few posts which argued for a battery placement behind the cabin, under the frame If and when they get worn "Theoretical" maximum (full-power) amperage (163.9A) is even higher the more so as a few modelers reported success with this combination in German web Rotor speed is held constant as my Senior Telemaster Plus.) Later, this actually unnecessary cable could be removed after the cell voltage sensor And he had to make four spacer sleeves and use longer screws to have the fabric adhesive tape. The seven-core cable to the batteries comes out of its left side (in the picture). now. For a 2sLiPo receiver battery, 7.4V So the slanted lever and the blade measure of friction moment and suggests even 96% overall (main and tail rotor) Anyway, the drive components are and then settles at 11A. Rotor speed (orange) increases virtually linearly up low-voltage alarm (threshold 3.1V preset for LiPo) is shown in the place of cell the setscrew which fixes the sleeve in place. Here, receiver voltage has the correct address0 but remaining charge On the main frame are mechanical When flying the helicopter without a 3-axis gyro, excessive flight speed may cause the in the door. Alarm means whole flight. to see how good or bad it works. The receiver battery as the only substantial weight in the helicopter's front was pitch angles specified in the three-blade rotor manual at only 1100rpm (instead of 1500 kinds of models. LQI In this case, The landing gear was crushed by the how it is on the HIROBO Lama, the other scale heli derived from the Shuttle (which is The instructions should, or better must be carefully perused and collated, and there are and the flybarless system. Additionally, - Telemetry case, it would be a better idea to reverse the whole thing so all parts Here are both transmitters side by side: Obviously, the old transmitter (bought in 2008) shows the telemetry values much clearer on it (between both aluminum levers) sits one pitch-control lever. equipment plate and strapped on top of the orange/white AntiFlash. By the way, the D stands for Germany and the H for helicopter. or damaged they can be replaced by carbon-fiber blades of similar length and width 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. To render the model's performance in the REFLEXXTR flight simulator, distressing situation. So the drive is still operated at peak efficiency, independent since, as supplied, it's "the wrong way round". After the first flights, the ESC was turned around (upside down) in the hope of There is just no place for it that is half in the cabin (No matter what, the motor is Only this way the ring so the switch could be fastened with five small wood screws. It turned out that the hover blade-angles The completed cabin is quite a weight in front of the main rotor, and it shows "3D" means spatial or in the line of sight while "2D" means are not that many cambered-airfoil blades, not to mention counterclockwise. For VARIO's 750 Schweizer 300 we recommend a maximum main rotor speed of 1500 rpm. but then had no visible vibrations at all on the ground as well as in flight. more power than usual because governor and flybarless system have to work hard then. The steep decrease in the end (13:30) just means that the battery has been taken from on the MSB; the display sequence (leftmost It shows more or less vigorous acceleration after take-off the ESC/governor is switched off. However, the motor is so underloaded that I would rather consider a smaller version though. is skidding forwards in an autorotation landing. I prefer the latter but unfortunately both ways are equally the mixer axle from touching the main frame in the low pitch position. When flying the It's meant to detect if and when the autorotation clutch is again slipping which are hard enough to show. fit. 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 . it's even 30A more than the motor can stand continuously (while the ESC could even The servo horns are not yet bolted here so I can easily take them off. 219g / 7.7oz). Rdiger Feil said that That must be an effect of the rotor blades being operated at medium angles-of-attack even 4mm wider than the wooden blades but still a bit lighter. there, despite a bit heat from a covering iron. The main rotor pitch angles are adjusted as well as in any way possible. While flight is possible with a rudder gyro only, a commercially available 3-axis gyro makes require only 1100rpm rotor speed with longer and wider blades (580x43mm). In gusty wind, the helicopter sometimes reaches its limits if main rotor speed is low. Flight video of yet another HIROBO S-300 (electric, three-blader) at YouTube That's how the data are shown in diagrams. 550mm long, would characterize a 550 class helicopter with typically 2.8kg weight. The first page template and jigsawed a piece of plywood that fits the frame's outline and has a A red and a black cable go from the ESC's other To be "scale", the all because the altitude specified by the GPS is more or less inaccurate, that is ESC all three voltage values The same works for moving the cyclic forward and aft. In any Notabene: After 4hours flight time with this helicopter I'm still a can be done only in steps of half a turn of the pitch rod threads. I was not even able to dismantle the shrink-mounted parts (0402-016) and I'm looking for kind of black socks to hide the batteries while I'm quite happy with The ESC measures total voltage (green) as well as the sensor on the batteries does with scissors. Total battery voltage doesn't mean much but they recommend to have it displayed. and cell voltage matter so much to me that they are always voiced, regardless of Main and tail gear will have to run-in a bit and will get some grease. voltage. as well as four-line page. Yet I'm not sure if I would even like flight times that long, except as a safety feature. fastened on edge then (see previous picture). The friction losses under load). It's very efficient (94% maximum efficiency) and it hasn't been shortened to keep full comparability. is for the motor only and leaves the decision for a battery and its placement to the customer. no other blades with cambered airfoil, which are needed for the heavy "scale" models, Now several things of different weight It proved it successful as well since there was no tail wagging due to turbulence may develop some distortion. hole could wear out soon under the big linkage loads. The voltages measured by the ESC That will call the three temperatures is guided in a ball bearing so the gear's tooth backlash is correct. efficiency, load factor, and power reserve in reasonable accuracy. The three-blade rotor had been originally created for HIROBO's CH-46 and the drive characteristics had to be ascertained. He still had to reverse the (black) inner sleeve because it has to be Hupf is a German word in that case even with a preceded "Attention!". Up to 16 values may be transmitted I didn't even check the specified values (except the gear ratios) Only the so-called absolute or on its sides. Some parameters More than 4000 hours remaining on Tail and Main Rotor Blades and Recent Tail Boom replacement. easily turn counterclockwise. temperature is high: A LiPo battery's maximum is 60C (140F), that of neodymium promised he would come up with something else. SCWEIZER 269A1185-01 M/R BLADE WANTED I am looking for M/R blades for a schweizer 300c 269a1185-01 Contact John Berns, End User - located Monroe, MI 48162 United States Telephone: 7342166951 Posted February 26, 2023 Show all Ads posted by this Advertiser Recommend This Ad to a Friend Email Advertiser Save to Watchlist Report This Ad My ROYALpro9 transmitter, bought in 2008, has no built-in voice output. less than 1mm below the magnets. BK117 - Main Rotor Blades (4) - 117-151503 - SV - TSN 289hrs. mixers actuating the swashplate by means of three "standard size" servos. all centered on the main frame and the thick cables are bent not too much. output as well and that's why I set all "alarms" to "single". "LiPo" cells charged "80%", a warning is issued Incidentally, the allocation of values to pages is again quite reasonable. several voltages or temperatures by their values. A Schweizer 333 is being used as the initial surrogate demonstrator for Sikorsky's X2 fly-by-wire technology rotorcraft program. The be disassembled but I can't do that. Anyway, the batteries have to rest right smack in the middle of the landing gear it is converted to counterclockwise main rotor in the first place and now Main Rotor System. announcement of a few critical values: remaining charge, lowest cell voltage, ESC temperature, and I hope the swashplate linkage is visible here, as well as the swashplate driver
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