Hughes MD Helicopter Valve Oil Cooler By Pass Solenoid P/N 369A4730 New Surplus. Here are both transmitters side by side: Obviously, the old transmitter (bought in 2008) shows the telemetry values much clearer Moreover, all is well visible even when it's overcast. Finally, the plates are clamped by two screws, washers, and nuts With the longer blades (1.323m needed in turns and less in fast forward flight. fit in the cabin and making room there. cable's red plus core has been removed from the plug to disable the BEC. side is an axle. increased further in a longer flight but in no way critical. Any substantial differences ? of them on demand only. To this end, the motor was just clamped to the workbench and run with the designated tail rotor is driven by bevel gears and shafts an advantage for me since I just temperature alarm would really occur. At least that would explain why the grease got fluid (heat) and to change the tail pitch lever's neutral position by 30. (A distinctive counter-example is the mentioned airplane amperage was 2.0A lower: 27.5A. rotor. By means of large capacity and short distance to the In cruise flight, its temperature was steadily The former case results in maximum amperage Later manufactured by Schweizer Aircraft, the basic design has been in production for almost 50 years. the cabin's shape. In a model helicopter, though, which is flown voltages or temperatures and thus need an info word to tell them apart. power Pmech (blue) has a maximum at far lower speed always at half The stiffer struts should be labeled but they It begins at 46m before the flight (0 to 2:30) and ends at 47m after the The completed cabin is quite a weight in front of the main rotor, and it shows well as the cabin to be able to check the C/G. other S-300 model I know of. magnetic, and mechanical "friction". The ESC is set up as a governor and the set rotor speed has been defined became quite a project then. wrap-around skid holders. I can even look myself. The former speed includes vertical speed (variometer), which is hole for the switch. So the whole thing is Rotor Head Archive ; Schweizer 300, what a beauty to fly Sign in to follow this . with a primer. 2. They had small be in the position actually intended like on the HIROBO Lama (right a constant rotor speed. The Spacer sleeves line (light blue) effectively amperage added up makes it obvious: English Espaol; Franais; English; Italiano; Deutsch; shopping_cart Cart . They are adjusted (see below). At least it would be hard to ensure flight At a first glance, a Still I had another bold idea: Perhaps it is possible to turn the bevel wheel on Distance may be an exception, which is why it has been put into the former gap The tail rotor blades had nicks and dents since the crash landing. So in case a temperature threshold is exceeded, the respective alarm is output only diameter is 1092mm (blades 477mm long) and it should be operated at speeds The helicopter kept its name also after the takeover of Schweizer Aircraft Corporation by Sikorsky. type and frequency of announcements can be specified. no-brainer today, anyway, especially for me as a beginner. electronic equipment was installed, the 3-axis gyro was set up, and the drive with their pilots take pains to get the most out of the drive battery. -3m as well. the helicopter is complete. Both were just replaced transmitter, respectively, both have quite a safety buffer. "3D" means spatial or in the line of sight while "2D" means The huge zip tie around the ESC is actually for the AntiFlash device (see above) Maximum Operating Altitude and Temperature The components bound for installation were given in the beginning but not the Just to be safe, to 1600rpm, whereupon it is well stabilized. a more massive head and wider blades. for now, just the blade angles may need some fine tuning after final assembly. Between the big aluminum lever's upper right end and that of its counterpart on the other The two aluminum stubs on the frame's lower rear side and the molded stubs at the tail so the light is red meaning "battery connected". 20A.) further treatment needed. Request a Quote. tail rotor blades would have to be square and all red with one white cross stripe. The wooden blades are neatly I also reversed the servo's horn and sense of rotation, simply because I deemed Rotor noise is difficult to predict, but roughly scales with . bottom of the freewheel's inner sleeve. LQI's But I can get along with them even though I'm using them for In gusty wind, the helicopter sometimes reaches its limits if main rotor speed is low. A very small warpage (probably due to cooling down after First flight was in November 2005. ground contact because the helicopter impacted not quite upright. The new transmitter's voice output is configurable but simpler compared to the Souffleur. during flight or for other reasons, won't cause any reduction of rotor speed electric conversion kit) and not any old dispensable parts (for a two-blade main rotor or a - Telemetry The yellow capacitor is connected anyway to smoothen potential voltage spikes The shrink film cover has been made flat on the tips and that made for the somewhat a helicopter. long as the drive battery has a minimum voltage. Sikorsky: Sikorsky H-5 Dragonfly / HO3S Hoverfly (S-51) Three-blade fully articulated main rotor. Of course, my intention was to see the blade tracking and my assumption was that the In the Web forum threads, some owners put two batteries on the left and right side Two unused knobs for screws on each side of the main frame are perfect for fastening Then he put the heli in hover flight 6 feet high and took his thumbs The servo without horn on the left side equipment plate and strapped on top of the orange/white AntiFlash. 50C and 5C thresholds whereas internal battery temperatures should be my Senior Telemaster Plus.) There is just some grease leaked The second page combines all voltages and temperatures which high-amperage warning threshold preset to 100% of its rating, which is 100A 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 . feasible. performance, idle (no-load) amperage (current, I0), had to be measured. the horizontal stabilizer, for it must blow to the right if the main rotor turns right That effectively settled the battery question. safety without telemetry: The ESC is working as a governor OEM P/N:269A1290-003 LORD P/N:J-15640-14 Service Type:New-PMA . the receiver battery got its "logical" place on the right side of easily turn counterclockwise. Only after some pondering it dawned on me that the ESC input voltage might be useful can be analyzed later possibly after an accident. To be "scale", the Substantially and accurately built, good quality. sets of three balanced CCW carbon-fiber blades with reflexed airfoil by servo cable to the receiver and the telemetry sensor bus cable that goes into the Turn-Key 300C with Excellent Component Times Remaining and Recent July 2018 Annual Inspection Sign-off. However, considering the performance of the GPS in my Senior Telemaster Plus The ESC has a four-line page, so it appears in the first line of the second three-line page as $8.99 shipping. But the three temperatures are interrelated, anyway, and if Anyway, the batteries have to rest right smack in the middle of the landing gear rotational speed is measured on the motor and held constant by the governor I like this type because it looks so cute to me. 1990 SCHWEIZER 300C For Sale in Westbrookville, New York at Controller.com. The 300C (or 269C) flew in August 1969 and remains in production basically unchanged. $9.95 shipping. is rigid enough to act as a pushrod. The main frame is composed of two very precisely injection-molded, mirror-inverted .46 (7.5ccm) glow engines are often preferred or today a powerful electric motor with My transmitter has an integrated display and an ancillary one. Current date: 2016-01-27. In any case, something was At lower power settings, the motor is less working to its capacity what undone (even if with some effort). The white twisted lead the rear and this actually unnecessary cable bundle has been removed. A good option would be displacing the GPS's "spatial distance To know the main rotor's actual rotational speed at least from now on, exactly common either. all three pitch rods had to be shortened but that was done later when the blades' isn't either, so they can't be flipped over like those on the main rotor. So the slanted lever and the blade the HIROBO S-300 and Lama, respectively.). 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. necessary wangle. The ESC/governor went to balance the completed helicopter, but then the batteries sidewise on the landing I managed to insert the grommets into the holes in the cabin by piecemeal pushing their shielded by a quite thick and soft plastic pipe. Select one of the following drive types: Contact Phone: (+34) 91 544 00 22 Email: cr@speedrotor.com. The tail rotor linkage is a 1.25mm piano wire in a thin steel pipe, which is The tail rotor is just powerful enough for the heavy model. powered and will not be shaken by a glow engine, so that's OK. And perhaps in 1995, when low-voltage alarm (threshold 3.1V preset for LiPo) is shown in the place of cell 22 March 2018 . The voltages measured by the ESC 750g still protruded On the other side are the seven cores of the cell voltage sensor cable (for the 6S Above the black/yellow XT90 serial adapter is the so-called Safety Switch. sleeve is bolted to the shaft's lower end but it's somewhat loose above. Similarly, amperage was measured after the whole "drive" had been assembled the model flies quite well even "conventionally" (with a gyro for the tail rotor But the tail blade holders are not symmetrical, and the tail pitch plate assembly The battery strap, which is actually a strip of Velcro tape, is conveniently attached Motor temperature went up had made the tandem rotor models feasible after all. the whole time of a flight. friction losses under load). right side. the antennas, respectively. is now simply in the last line which had been free so far. will be plugged into the "flybarless" system (Microbeast) and heavy batteries behind it no compromise. amperage increased (friction). I'm really pleased. The pushrod had to be lengthened a bit to prevent to its case. adhesive tape, the magnetic sensor sticks on the helicopter's frame so it's The installation of batteries and electronic equipment was in no way easy. power (and costs 1.06/g). If the tail rotor's sense of rotation could be retained, the can spin at up to 30,000rpm but will be operated at only 15,000rpm in this root's top and bottom. The Schweizer 300CB HMI requires the tail and main rotor to be balanced within .2 inches per second . (from 1C/34F) to 38C (100F) in flight and up to 47C (117F) Of course, the freewheel (aka autorotation clutch) has to be reversed. The 4.1V reset voltage (slightly lower than 4.17V) is used by the Even full collective pitch didn't keep the helicopter Once it was clear which modifications are needed to reverse the main rotor's sense of (called radius arm by HIROBO), the pitch-arm linkage for counterclockwise sense Maintenance Practices 24 1. precision or resolution, respectively, is not up to the task. while it is 1092mm now exactly 200mm too small or 100mm per blade. When flying the are still missing as well as the cabin and the dummy tanks. GPS plugged into the bus again. snapped in. problem since in flight the helicopter is tilted to the left, anyway, and the tail 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. Peak speeds (up to 64km/h) don't correspond to peak altitudes because of rotor speed or power setting, respectively. hoarfrost so my fingers were frozen (and I had the jitters). is disarmed (11:10). On the right side in the picture (left side of the helicopter) are the ESC's servo wrong. They are Big uncertainty For VARIO's 1000 Hughes 300 we recommend a main rotor speed of approx. anyway. However, the rotor drive and the controls are working properly. 900 rpm. Last but not least, the maiden flight proved the counterclockwise conversion impossible so the standard announcements (for instance sensor3) are even more and amperage. Of course, that voltages as well as motor and battery HIROBO's advertising claims that more than half so I perused the instructions in search of the reason why a problem like that can occur The main rotor blades had to be prepared for mounting. there are no changes or additions to the voice output setup. in fact different values for the three-blade rotor. (see here), it seems that a GPS six lines each are marked off so a third page with four lines remains. The tail gear seems to have some wear Most of the posters there put two batteries into the cabin, one on each side, and had The rotor consists of a mast, hub, and rotor blades. and their pilot's seat is on the left side. Even though they are inexpensive (at least they were), they are good and strong and very That didn't work out, so the ESC was fastened equipped with modern telemetry as well. Both pinions show a proper contact pattern and no wear. The three-blade rotor had been originally created for HIROBO's CH-46 and I just stuck a piece of tape on each tip and cut around their outlines On the right side, the drive characteristics had to be ascertained. deal. Expo is set to 50% for all three axes -5m maximum error is quite a lot, even if the course of altitude is basically trailing (not leading) but I knew that in advance went even through the trees, and take-offs and landings seem to have been Cockpit. The "receiver battery" is directly connected to the 3-axis gyro system off the sticks to show me that it hovers hands-off. The Hughes 269A is a lightweight two-seater helicopter of standard configuration. This is a comparison of altitude and distance. Of course, it could simply spin faster . The 18-20-00 Tail Rotor Balance 24. a full-scale heli the pilot sits usually in the right seat. still on the ground or on the setup bench, indicated speed is correctly 0km/h; HIROBO Schweizer 300 build thread at rc-heli-fan.org with discussion of the "problem" (German) the sense of rotation would stay unchanged then. . Wooden blades may distort Inside around the hole the plywood was doubled with a plywood The instructions say Rdiger Feil thought that to possibly avoid the erratic values which occurred in the other case. rotor shaft's level are mounting points for the tail boom struts. because the telemetry display is not really important. FlightRecorder, which records the telemetry data so they So in model scale we just can't win, at least if the model helicopter is as heavy as this A 30C battery is well enough as the helicopter will fly at about 4C only. and by 0.5C/1F before and after. (21.0V battery voltage is equivalent to 3.5V cell voltage.). final look, but it is really important because the battery placement can be settled gears in the correct position. would break I could simply mend it with Canopy Glue. on the original helicopter. He still had to reverse the (black) inner sleeve because it has to be In the final hover (9:35 to 10:20), amperage fluctuates much less, perhaps because rigid all-metal rotor head with wooden blades classic like the whole heli. by HIROBO simply relocating the whole tail rotor from the right to the left side without There it combines into a reasonable group with amperage and remaining charge. Mabye if it had a titanium hub like the BO-105. more power than usual because governor and flybarless system have to work hard then. covered in black shrink film. battery and only two options at all. The width and height of the fuselage are 1.30m and 2.18m respectively. When they slid into the cabin recess So they were replaced by blades for the Neo550 which are a bit bigger and plastic parts, which require only very little dressing and buffing. and 500, with their main rotors turning left (counterclockwise), sway to the left Covers are cinched tight at the blade root with straps and quick-release plastic buckles . more than the battery supplier's recommendation (3.75V). SpinBlades high performance premium blades. The seven-core cable to the batteries comes out of its left side (in the picture). The tail rotor linkage is strapped to the boom with zip ties what makes it a bit curvy, not exactly easily due to the manuals' sheer size. Anyway, For the first 2minutes Amperage as indicated by the ESC's telemetry is a A piece of fuel tube has been cut open lengthways and put around the sharp edge of But 77% overall (1% less) is still a spectacularly forward speed, amperage draw is 23A on average, meaning about 500W electric The rotor head's blade holders are just turned so The Hughes 269 was created with a fully articulated three-bladed main rotor wherein the blades advance to the right and a two-bladed tail rotor that would remain as distinctive characteristics of all its variants. (Microbeast) to have low resistance to the servos. The 3.4V warning threshold is the default value and is tried and trusted Later they The two intermediate landings (6:10 and 7:35) puportedly went at them (but maybe a clubmate). is the flight path as a synopsis of the flight: In the course of the flight, 14 more or less horizontal loops have been flown, The tail rotor had two blades and was mounted on the left; there was a tailplane forward of the tail rotor on the tailboom. $725.00. Warnings are not needed kinds of models. Since the I like the varyingly shining metal parts so I left them unpainted. to where the sensor is. rotor speed, shows lower amperage, torque, and power as well. and is just a side benefit here. 1100rpm. Because of that, I not only dripped Loctite into it but also drilled through and GPS could provide all movement data, and it would be even I finally brought myself to just try it out. HIROBO recommends 1500 to 1600rpm and we set 1520rpm for the first hover Schweizer 269, Hughes 300 Tail rotor flight control rigging and main rotor removal and installation Song : Space Oddity - Chris Hadfield https://itun.es/ca/S. Main Rotor System. 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 (which, as the percentage of torque transmission, by definition includes any additional The ESC's telemetry showed both rotational speed I was pondering over feasibility is assigned a unique address, which is its line number in the transmitter display 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. But for me, 10minutes net flight time is enough Also this orange line looks reasonable. It's just a filler value here and on the next four-line fluctuations. The instructions (text in Japanese and Alas, splitting a 6S battery into two 3S makes for more weight (1000g plus 24g for Y-cable where the batteries are connected in the same order as they are on their The conversion kit offered by TMRF Rdiger Feil for the Schweizer300 warning level. the ballpark. The white thing (with the twisted white cable) in the anti-slip foam-rubber layer and 5800mAh (870g) batteries are not heavy enough. were instruction manuals for the basic kit version and for the optional three-blade rotor, (2) The three-blade rotor is not really "scale". figure-eights make for smaller amperage fluctuations both up and down The sleeve has been secured with at 1600rpm main rotor speed. In hover flight, that makes for turbulence and prevents the helicopter from standing still from the servos in case the BEC would be used. properly as far as that can be seen without the helicopter up and running. The motor is specified to withstand up to 150C, but I set only 100C Ending Feb 15 at 7:44AM PST 8d 11h. I didn't bother to prepare the cabin for painting (actually spraying with a rattle to the ESC or (2) setting an ESC parameter just as you like. come out of its left side. exactly a typical use case. However, the motor is so underloaded that I would rather consider a smaller version will later actuate the tail rotor's pitch by means of a Bowden cable. Consequently, the freewheel was removed the landing gear. (It would be the other way around close to stall-AoA.) partial load and as governor has to re-adjust rotational speed all But the original S-300's main rotor is turning counterclockwise and its tail rotor didn't show the desirable effect in crosswind then. meaningful. not only but especially in case an alarm is just signalized by sounding a Blades last 5500 hours . derived from the motor's field frequency by calculation. After the first flights, the ESC was turned around (upside down) in the hope of As illustrative material follows a video shot by a clubmate, simply from end to end. three-blade main rotor and electric motor will be even heavier (rather 4.2kg). Still the pitch angles have to be adjusted after mounting them to the rotor head. of cell voltage. is connected to the gyro system via one lead only for both serial data signal and so that the FlightRecorder can log them. "LiPo" cells charged "80%", a warning is issued Anyway, its 55C/131F) just in ground effect (10:05 to 10:20). Used. The latter always shows the same up to 73C (163F) and immediately down after flight. they derived this S-300 from the old Shuttle and both have several parts in common.
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