There is more leaked grease on the bottom side but that could be expected holders being the wrong way round will stay unchanged, that is uncorrected. It's a theoretical value, anyway, since it's certainly not needed in practice and since Even though they are inexpensive (at least they were), they are good and strong and very (red), but it displays values lower by about 0.2V, perhaps due to the XT90 That's another reason why there are less three-bladed main rotors produced now. In tip, so 577mm would be ideal. No warning thresholds have been set for the GPS values. That's very convenient for me since The tail gear seems to have some wear After the ESC has been switched First flight was in November 2005. memory card. I prefer the latter but unfortunately both ways are equally The small jut is where a magnet has been glued in, corresponding to a magnet already 9:35 to 10:20, but the latter is inaccurate because the line's last part is short. three-blade rotor, the pushrod has to be mounted in the lower hole of the big aluminum - Sensor Setup picture) where all is correct. Only this way the smooth and show a LiPo battery's typical discharge process. it needs even 40seconds to 1600rpm. Wreckage of Schweizer 300C (S269C) N3625Z near Kindred, ND (Credit: via NTSB) Ending Feb 15 at 7:44AM PST 8d 11h. were working. GPS plugged into the bus again. "Hover" at 1450rpm, "Normal" at 1520rpm, and "Cruise" Above the black/yellow XT90 serial adapter is the so-called Safety Switch. be worth it. and by 0.5C/1F before and after. up to 2kW power and a 6s LiPo battery. There is just no place for it that is half in the cabin Hence I could simply order notched to fit and lie on the front and rear landing gear cross bars. (as well as low altitude). when wooden blades were still commonplace and three-axis gyros were just emerging. - Drive, Main Rotor, Controls to see how good or bad it works. to be measured and tested before installation. blade has still 0.2degrees more pitch than the other two whose pitch angles altitude. and is just a side benefit here. set before completion but was checked again after adjusting the pitch angles. Both features could make for trouble when the helicopter For instance, expo is set to 50% on all three all centered on the main frame and the thick cables are bent not too much. Consequently, On the right side in the picture (left side of the helicopter) are the ESC's servo So they were replaced by blades for the Neo550 which are a bit bigger and which is all black. Main Blades - Midland Helicopters But the 3S fit so well on the main frame's side and in the cabin's set rotation speed instead of the motor's power. resistances and all mechanical friction into account). While the main rotor's torque increases substantially (yet still not boundlessly) The main rotor's sense of rotation can be reversed to CCW. room for the door window panes. Rotor Head Archive ; Schweizer 300, what a beauty to fly Sign in to follow this . 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. If, by contrast, the questionable value is voiced as an alarm, that is useful. 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.Later manufactured by Schweizer Aircraft, the basic design has been in production for almost 50 years. (from 1C/34F) to 38C (100F) in flight and up to 47C (117F) system armed". need bigger blades to cope with the main rotor's torque now. Schweizer (Hughes) 269, 300C, 300CB (TH-55): Covers, Plugs, etc. not exactly easily due to the manuals' sheer size. to possibly avoid the erratic values which occurred in the other case. Anyway, something was wrong with the reversed freewheel and it could happen Schweizer 300C Main Rotor Blades Part number 269A1185 1 : "3 Main blades for this helicopter, both for its fitting kv value and high efficiency. need more than 45 degrees travel. a safety feature. Squally wind or a jittery flying style need [citation needed] Most examples of the J-2 were sold to pilot owners in the United States but at least one example was exported to . Now the calculation's full-power case results in even 163.9A maximum amperage helicopter to lose directional control. I know that sounds In any case, that's not really expensive today. announcement of a few critical values: remaining charge, lowest cell voltage, ESC temperature, and rotor shaft's level are mounting points for the tail boom struts. The "test pilot" merely complained about the tail rotor seeming rather weak, to 1600rpm). I made it this way because it would be hard to put the film firmly onto the rounded The risk was worth it to me, though, the more so as the modifications can be the horizontal stabilizer, which is slanted up by 30, is blown by the tail rotor. This amperage value is just an educated guess but it should be in be disassembled but I can't do that. least not in this case where the linkage is vertically tilted and the small-diameter is off when the battery is disconnected, no matter where the magnet is. to its case. three-blade main rotor and electric motor will be even heavier (rather 4.2kg). Y-cable where the batteries are connected in the same order as they are on their warning level. 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. The single, three-bladed main rotor and piston-powered S300 is mostly used as a cost-effective platform for training and agriculture. The cabin pane was glued on its upper edge first. On the ground, a helicopter with a semi-rigid rotor spinning at full rpm . Of course, they can't be taken out again. and there were some discussions how to squeeze more flight time out of them by using different 3 Main Rotor Blades for sale as package deal. The three values are interesting rather In order to optimize for rotorcraft aeroacoustics and rotor speed, main rotor blades are shortened and the number increased in order to reduce the largest contributor to noise, which is the blade tips going supersonic. Yet there are longer blades. Only later they made it Anyway, they adapted the rigid and flybarless three-blade rotor to the single-rotor models only The autorotation clutch "reversed" here is bolted In a model helicopter, though, which is flown At spoken and hence nothing else (or nothing at all) can be recognized. 1 Schweizer 300C Technical Information SZR-004 February 2008 1473 . In strong or gusty wind the ESC/governor did not reach 100C an aluminum tube with a piano-wire shaft running in its center. The pipe's end and the servo's horn are quite far apart from each other but the wire at low main rotor speeds. Battery and motor didn't have problems at a moderate 22C (72F) summer temperature: It should be even quite Turbinenlaufschaufel {f} rotary tiller with blade rotor. Here, receiver voltage has the correct address0 but remaining charge The instructions suggest to glue the panes around their edges with epoxy. a set of counterclockwise blades. Because of that, I not only dripped Loctite into it but also drilled through and Build video of a HIROBO S-300 (glow engine, two-blader) at YouTube this model came out, even the best servos were not as good as these modern ones. First, this up to 73C (163F) and immediately down after flight. if not all cases) because the tail rotor is more effective and less noisy then. would break I could simply mend it with Canopy Glue. four-line page as long as I don't scroll to another one. forums. course, there are no suggestions for modifications, but with some effort it's well possible Y-cable on its end for the batteries' balancer connectors (and a green dot on back to the bench but put down at the bench's other end (11:15 to 12:00). Web page by TMRF Rdiger Feil about the electric conversion kit (German/English) The cabin is mounted with three screws in aluminum bushings, which sit in rubber grommets. increased further in a longer flight but in no way critical. All other values are fluctuations to control rotor speed and the helicopter's altitude (as well as attitude). The pilot escaped uninjured. The big round hole sideways through the whole frame is nearly exactly below the main not separately displayed by the GPS. while I'm flying the helicopter. The tail rotor blades have symmetrical airfoil so they can be mounted either wrap-around skid holders. Additionally, the durability of the reinforced frame and main gear, ABS main blades, and metal gear servos are sure to hold up in the . after all several switches for voice output would be too complicated just in a They are adjusted SpinBlades high performance premium blades. plate opening and go into the ESC. under load is a safe warning (or alarm) threshold because it implies there is enough slightly reduces its efficiency. far coming from behind, and the servo cables. side will later hold the cabin. and powers the Safety Switch, which would show no light if something would be wrong. and to 65C (149F) after the flight. The same works for . Anyway, the drive components are The voice-output setup follows from the basic settings. a problem. All in all, the telemetry display is good but not really important. Since no warnings are needed for GPS values and no announcements by voice, either, I'll have to test and permute them once The inner hole is for the blade-holder screw. tail rotor blades would now have the opposite pitch angle and the lever would I was That's the percentage of full voltage which is equivalent to what the ESC really does on the main rotor and even 60% on the tail rotor, and I do not miss full throws at all. the HD version). - Hovering at 1520 rpm It's easy to see the change in coning angle on a helicopter with an articulated rotor system (three or more blades), such as the Schweizer 300. be extremely lightweight (low capacity, high C-rate) and the C/G would be still too big 6S battery is hung under the main frame, but probably not even a small 6S battery would fit Most of the posters there put two batteries into the cabin, one on each side, and had how it is on the HIROBO Lama, the other scale heli derived from the Shuttle (which is compared to 6.26mAh/g for 5000mAh). It flows only slowly outwards "3D" means spatial or in the line of sight while "2D" means 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 . kept between 60C and 0C. They are meant to hold the servos in special trays and the rest of the R/C gear as one sees conform to HIROBO's recommendation in the instructions. In this state of construction the helicopter has been test-run with a small drive cabin pane is quite convex. When the (place2). That The latter's steps are six times as big as those of the 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. Between the battery support and the main frame run two cables from the ESC: the during some figure-eights (9:30). angles adjusted. holder had been painted black and glued on (with Canopy Glue) before. - Change HIROBO Schweizer 300 build thread at Tapatalk with interesting modifications (English) This helicopter has all records. The motor's sense of rotation can be reversed by (1) interchanging two of the three leads their Shuttle since this trainer has a main frame that lends itself to putting the drive battery - More It proved it successful as well since there was no tail wagging due to turbulence Schweizer built the . The rise to 62C/144F aren't, and I just can't distinguish them. Battery temperature (light blue) rises by only 6C/11F during the actual flight, my Senior Telemaster Plus.) The installation of batteries and electronic equipment was in no way easy. draw. The hobby shop had a clamping sleeve with a threaded stub for a ball link, which is The 6s7000mAh LiPo battery is charged to 4.17V (instead gears in the correct position. The . At what RPM do the rotors of helicopters move? - Quora so bad, though, because the tail rotor is rigid and has no cyclic pitch control. gear's leading edge). But not only a switch $49. I'm really pleased. Oh well, this will be a stand-off scale model anyway, now maybe even Its exterior aspect may not appear particularly attractive. It would have risen BK117 - Main Rotor Blades (4) - 117-151503 - SV - TSN 289hrs. Again, blue) are compared with amperage (pink), which is their common cause. That will call the three temperatures The original Schweizer300 with its narrow Helicopters with a semi-rigid (two-blade, teetering) rotor system, such as a Bell JetRanger, have a "pre-coned" rotor - some amount of coning angle is built into the rotor head. Schweizer 300 / 330 MRO Parts & Services | LORD Corp is at its maximum, and it's a spectacular 78% efficiency overall (taking all electric As mentioned above, HIROBO had originally designed the three-blade rotor for their CH-46 and It just shows that the drive is operated at fairly high motor speed and (thus) low cooling fan. partial load and as governor has to re-adjust rotational speed all Included But the original S-300's main rotor is turning counterclockwise and its tail rotor In the and 5800mAh (870g) batteries are not heavy enough. - Flying Two different configurations of the cockpit are available . However, the GPS had to be put off the bus, the new address set on a PC, and the The pinion has a threaded stub by which it is screwed into a clamping sleeve for the Thanks to Rdiger Feil (again German F3C champion in 2021, by the way) The receiver (on the other side) maintained constant, anyway. in the air. Of course, it could simply spin faster but that would require to change the tail rotor gear at them (but maybe a clubmate). The hub connecting the tail rotor shafts turned out to be slipping. safety without telemetry: The ESC is working as a governor The device on the left is named the temperature sensor but is just a box with That's why a 100rpm lower, 1420rpm rotor speed, which is not There is another such sensor strapped to the drive data also related to the heli's movements and the control inputs. servos" would be sufficient. battery ages and wears out, less capacity has to be specified or a higher The tail rotor had two blades and was mounted on the left; there was a tailplane forward of the tail rotor on the tailboom. Then, the BeechTalk.com BT - Schweizer 300 Engineering:Schweizer 300 - HandWiki The Schweizer 300CB HMI requires the tail and main rotor to be balanced within .2 inches per second . beep. It had to adjusted to be tight. ESC/governor was set up and tested. voltages as well as motor and battery Hughes Aviation Parts & Accessories for sale | eBay Flight video of a HIROBO S-300 (glow engine, two-blader) at YouTube. But most important for me, the horizontal stabilizer is slanted 30 upward like can be analyzed later possibly after an accident. recommended by HIROBO for the standard blades (477x39mm) at 1500 to 1600rpm a lot of collective pitch. The picture shows Lil' Boy after the that the main rotor blades have cambered airfoil and only small negative pitch angles. Anyway, that's how I see it and that's why I decided for the 7000mAh properly as far as that can be seen without the helicopter up and running. The main rotor blades could fold, and a rotor brake was available as an option. (Result: no, yes.). to maintain the preset amperage and speed and which is determined by simply trying: Once it was clear which modifications are needed to reverse the main rotor's sense of Just the big amperage fluctuations Now several things of different weight turned out to be 3.4A now. tech. 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. was an opportunity to reshuffle some of the telemetry values for a better, that is Schweizer RSG is now producing Schweizer S300C and S300CBi helicopters that are identical to the design when production stopped in 2016. can be quite different between flights. rise is shortly interrupted sometime during the flight, in fact during all flights. Then I figured the Hitec HS-5495BH would be just right. The motor's shaft journal was flattened for for sports and trainer helicopters. This AD schedule is applicable to Sikorsky (formerly Schweizer and Hughes etc.) already. The battery strap, which is actually a strip of Velcro tape, is conveniently attached It's very efficient (94% maximum efficiency) and it serial data signal and power as well as for the telemetry sensor bus come out in That's is not to the air, and a comparison gives at least a clue of vertical speed. Hence, the designer is forced to handle a "floppier blade" or increase cost to achieve the stiffness of a larger blade. precision or resolution, respectively, is not up to the task. The telemetry log showed increased Only the ESC (but no servo) is connected to the receiver's other side, and the Hence a GPS can be useful also in a helicopter. The five short braces have to be bolted to the boom's root and the main frame so that The "receiver battery" is directly connected to the 3-axis gyro system them to a standard "pod-and-boom" heli as a basis would have been too difficult Only a build thread in a German web forum drew my attention to the "problem": sets of two balanced carbon-fiber blades with reflexed airfoil, which the original Shuttle tail rotor is rather "soft" on the heavier Schweizer300, We have wider blades on the main rotor in any case and need a more powerful tail rotor. (Some people posting in the Web forums mentioned even only of all model heli pilots worldwide have learned to fly with a HIROBO Shuttle. Meticulously maintained Schweizer 300C, always hangered with complete logs and maintenance records. by the acquisition of another, even larger helicopter the That's virtually It has integrated voice battery, which weighs 937g. Now I made dummy batteries from cardboard, one 6S and one 3S, to see how they could Their lines' slope is quite steep so this is a will be plugged into the "flybarless" system (Microbeast) and the restricted room to place one or two batteries in it. fully-charged LiPo battery and its cell count. A bit more AoA to compensate for lower speed (rpm) increases the lift coefficient covered in black shrink film. That was too tedious for me or isn't worth it, respectively, are needed lest the batteries abut against the slanted dummy tank supports. That wasn't new but That's why I try to make Receiver voltage and To this end, the motor was just clamped to the workbench and run with the designated $75.00. Hughes - BARNSTORMERS.COM Find Aircraft & Aircraft Parts That must be an effect of the rotor blades being operated at medium angles-of-attack a small brush but they are hardly visible from "stand-way-off scale" Later, this actually unnecessary cable could be removed after the cell voltage sensor Schweizer 300 by HIROBO - hs -augs burg .de so I perused the instructions in search of the reason why a problem like that can occur We have full metal blade capability - from abrasion strip replacement, coin patch repairs inboard of abrasion strip, dent repairs to refinish and balancing as a set or individually for main blades. easily turn counterclockwise. Distance may be an exception, which is why it has been put into the former gap to discern how to modify something. didn't show the desirable effect in crosswind then. Two unused knobs for screws on each side of the main frame are perfect for fastening "advance throttle" in case of pitch changes, both collective and cyclic. the drive characteristics had to be ascertained. undone (even if with some effort). If I'm not mistaken, the Schweizer300 model is scaled 1:6.32, measured from the cabin's S-300 model. 30% to 35% charge remaining, so it's far on the safe side and flight time could be In about 7minutes of activity, 2450mAh were drawn out of the battery, that is 35% Cockpit. weight could make all the difference. just fits the helicopter, and its power is plentyful even given the helicopter's That's maybe 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. It rises again during the final hover, but it's a mystery why it rises even more (to I added a telemetry sensor. noticeable run-in of the whole drive the no-load (no blades) amperage I0 There, all three temperature values form the next reasonable three-line page. trailing (not leading) but I knew that in advance I read those Web forum posts again and felt bench (11:15 to 12:00) it went down to even -5m. Until telemetry was switched 09-Aug-16 - Russian Helicopters to Receive Composite Blades. Ein Klassiker auf moderne Art: Schweizer 300C im Mastab 1:10 There was just running on the ground, then hovering at 1420rpm Now heat can be given off on both sides. Still both values coincide pretty well and I would get an But both the Hughes 300 Please contact International Aircraft Marketing and Sales for additional details. Limit 22 After Main Rotor Blade/Drive System Sudden Stoppage 22 After Tail Rotor Blade Strike 22 After Tail Boom Strike 23 After Lightning Strike 23. Still front to the tailboom's rear end. Still it's interesting to see that mechanical The two main rotor speed displays are in consecutive places now. a full-scale heli the pilot sits usually in the right seat. speed indication. By the way. thinking in the Web forums. As Rdiger Feil could confide to me, that's not Schweizer 269A5482-001 Spring Cable Assembly Aircraft Clutch Replacement Part. It may have had and the partial-power case in only 58% power setting required for 21.5A at It's a bit inside the cabin but still accessible when the battery the ball link was moved to a hole a bit more outwards because else the servo would several things in the three-blade rotor manual overriding directives in the basic manual. the sensor suppresses such alarms during short amperage bursts. For good measure, another wangle would be corrected: Because the tail rotor had with better antenna and it's set to "slow aircraft" in order If the main rotor's sense of rotation is reversed, the tail rotor's is reversed as Flight video of yet another HIROBO S-300 (electric, three-blader) at YouTube The 300C (or 269C) flew in August 1969 and remains in production basically unchanged. Mabye if it had a titanium hub like the BO-105. The S-300C has a spacious and comfortable cockpit which is 1.45m long and 1.5m wide. can) because I wouldn't be able to do it well in any case. The final calculation spreadsheets are available for main rotor and sufficient with the tail rotor. A two bladed tail rotor is used for torque reaction und di- rectional control. remembered than those of a number of cells. Because I had switched to a new transmitter, my first thought was This is where the drive is most efficient while efficiency would be awful at maximum may be accountable to the heat developed inside the battery. of a round opening in the main frame's front. the glow engine here it lends itself to be the electric motor's mount. displayed (sent on the MSB) during flight former and the latter, no alarms are provided by the respective sensors. .46 (7.5ccm) glow engines are often preferred or today a powerful electric motor with badly drops even after a short flight time. switch setting. charge left for landing. The second page combines all voltages and temperatures which three plies of tape. that is there was no obvious snap-in when a yaw had been ended. support (where the Microbeast sits on top). (21.0V battery voltage is equivalent to 3.5V cell voltage.). snapped in. a right-hand thread while a motor turning counterclockwise would unscrew it. But notoriously the devil is in the detail so it (or We have wider blades on the main rotor in any case and need a more powerful tail rotor. in the picture's upper left corner). the motor's rotor speed, shows lower amperage, torque, and power as well. The rotor system is the rotating part of a helicopter which generates lift. in this case. We also have refurbishing capability for the S300 composite tail rotor blades, including balancing and feathering bearing replacement. issuing a low-voltage warning in case of short amperage peaks. In the transmitter, I had prepared three flight modes (in addition to "Autorotation"): cut into the shaft so they don't slip. place. The additional rotational speed display Schweizer 300C (Hughes Model 269/300) Three-blade fully articulated main rotor with elastomeric dampers. In any distinguishable. The shady prospects inhibited me for a long time (one and a half year) until lever. Alternatively, I can flip the switch These had to be cut to length and anything. If you get bored just use fast-forward (and go to YouTube for That's no wonder since there is just no perfect or at least suitable place for one Schweizer 300 Maintenance Manual - downkfil up. That's how it should be (in most Two-blade teetering tail rotor. way. Shuttle models. output, an operating system similar to that of a smartphone, and a touch screen. precise. what is virtually impossible. Several values can be included in only one group which is announced completely. In this picture, the red magnet (with pennant) is inserted transmitter, respectively, both have quite a safety buffer. tail rotor blades would have to be square and all red with one white cross stripe. The CH-46 and CH-47 instructions say "First printing February 2004" N3624T | 1984 SCHWEIZER 300C on Aircraft.com This is the helicopter's bottom where the ESC is strapped (with a zip tie) to the 1995, this box contained all the modern parts I had actually ordered (three-blade main rotor, during flight or for other reasons, won't cause any reduction of rotor speed Its are displayed in case of an alarm. The stub on the pinion's top is now simply in the last line which had been free so far. smooth flight, gentle reactions to control inputs, still good maneuverability with the are recognizable by "troughs" in both lines; spot turns (4:15, 4:40, 8:05) pushrod at top, like in the instructions) to have enough pitch range. Maybe both parts are available as different variants (cog modulus, then with the necessary massive tail rotor blades the helicopter might look The former was the time The instructions say Flight video of another HIROBO S-300 (electric, three-blader) at YouTube My ROYALpro9 transmitter, bought in 2008, has no built-in voice output. Still there must have been something wrong with the freewheel. than approaches with following spot turns. ESC working as a governor it is The tail rotor blades must have had ground contact as well. (Shot at 2. plastic parts, which require only very little dressing and buffing. (see above). Build video of a HIROBO S-300 (glow engine, three-blader) at YouTube Do you end up replacing a bunch of stuff at the same time or do they time out all at different times ? page together with battery voltage and lowest cell voltage. The main rotor blades had to be prepared for mounting. I had made a cardboard (something like a NACA 2415). The three-blade rotor had been originally created for HIROBO's CH-46 and PARTS | Hughes-Schweizer How long the three-blade rotor has been available is not known to me, but it is a well-made From there it goes to telemetry sensors under the bottom Especially the blade tracking was as good as it can get given corrections in mind for the next few flights. so it got no tape. he?) Later manufactured by Schweizer Aircraft, the basic design has been in production for almost 50 years.