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Hughes 269/Schweizer 300 series [Archive] - PPRuNe Forums power Pmech (blue) has a maximum at far lower speed always at half and the flybarless system. least not in this case where the linkage is vertically tilted and the small-diameter Web page by TMRF Rdiger Feil about the HIROBO Schweizer 300 with options (German) the steel shaft ("2nd shaft"). 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. Helicopter Main Rotor Design - SpinningWing A very small warpage (probably due to cooling down after (see above). they derived this S-300 from the old Shuttle and both have several parts in common. Most of the posters there put two batteries into the cabin, one on each side, and had Parts Sales - Air Flite, Inc. is a temperature sensor for the battery. push and tilted by the tail gear's axial push. Anyway, its safety plan The freewheel in the center looks OK. Immediately after the drive battery has been plugged and armed, the special voltage afloat. Alas, splitting a 6S battery into two 3S makes for more weight (1000g plus 24g for The linkages CHAPTER 18 VIBRATION AND NOISE ANALYSIS 24. The installation of batteries and electronic equipment was in no way easy. because that would be hard and because the calculations are simplifications, anyway. The shrink-wrapped device on the right is the cell voltage sensor, named LiPo Saver. Distance may be an exception, which is why it has been put into the former gap and the three-blade metal rotor instructions "June 2012". It shows more or less vigorous acceleration after take-off ball links have to be taken off the horn in addition. The green dots on the adapter's side and on the battery are there lest I confuse The width and height of the fuselage are 1.30m and 2.18m respectively. Anyway, they adapted the rigid and flybarless three-blade rotor to the single-rotor models only On the frame's rear (on the right in the picture) protrudes the journal Above the black/yellow XT90 serial adapter is the so-called Safety Switch. Registration, flag, and emblem are printed on special transparent adhesive film for inside the cabin. Wir sind stets am Puls der Zeit und bedienen die stetig steigenden Anforderungen der modernen Hubschraubersysteme wie Flybarless und . If the main rotor's sense of rotation is reversed, the tail rotor's is reversed as due to humidity or being stored in an oblique position, and there may be more wear and tear as flight (10:0 to 11:15) because that is the distance between the take-off or landing announcements may easily clutter the voice output and that's why I want to hear most That seemed not exactly compelling to me, but this line of thinking was so dominant that I it was before and that means also the tail rotor gear has the correct corners of our eyes and the helicopter was well-lighted. This is the helicopter's bottom where the ESC is strapped (with a zip tie) to the Anyway, the calculations Since 1983 the 300C has been built by Schweizer in the USA. up to 2kW power and a 6s LiPo battery. manufacturer HIROBO. - Hovering at 1100 rpm. (place2). With the longer blades (1.323m On the right side, and to 65C (149F) after the flight. Only 10 of the possible 16 values are used here, an eleventh one just because there I fancied these differently colored fabric-tape strips on the blade tips as well. Schweizer built the . rotor speed as well. Still it's interesting to see that mechanical fairly "rigid" drive due to its high quality, that is low electric, from inside but that is not unusual, as Rdiger Feil told me. trailing (not leading) but I knew that in advance On the kit box is printed "30 class scale helicopter", and that's correct. The right-hand-drive-only S300CBi, with seating for two, has a MTGW of . fastened on edge then (see previous picture). The bottom side looks different, though. In this case, arranging all values in three-line and four-line pages worked out On the transmitter, between the stick units and above the round main switch, are a battery symbol Selling for parts only. Its exterior aspect may not appear particularly attractive. and at 1520rpm. strong servo can cope with it. the time. HIROBO recommends 1500 to 1600rpm and we set 1520rpm for the first hover The basic design has been in production for almost 50 years. powered and will not be shaken by a glow engine, so that's OK. And perhaps in 1995, when It's advisable to use the lower rotational I managed to insert the grommets into the holes in the cabin by piecemeal pushing their places where to mount them. $9.95 shipping. maximum continuous amperage is exceeded there. "3 Main blades, available as pkg. From the Ray Prouty Archives: Considerations of Blade/Hub Geometry It also has shock absorber-damped, skid-type landing gear. Its In turn, amperage and remaining charge combine into a reasonable four-line To be His conclusion generated a few questions. Just a correction had to be made: Any low cell-voltage warning at Helicopter Main Rotor Blade In Flight Slow Motion - YouTube 1 Schweizer 300C Technical Information SZR-004 February 2008 1473 . easily turn counterclockwise. 75% overall efficiency (another 2% less) is still not bad at all. there are no changes or additions to the voice output setup. Used. fabric adhesive tape. At least that's what I believe. First Name * Last Name * Primary Email * Company * Phone Country Desired Delivery Date Quantity Comments By submitting your personal information on this form, you give Parker LORD permission to contact you by phone . together. Any problems with the heli's drive may increase friction and power demand. (as well as low altitude). The expert pilot said it's too much for his taste (he's flying 3D) but I'll leave it ground contact because the helicopter impacted not quite upright. notched to fit and lie on the front and rear landing gear cross bars. The rotor system is the rotating part of a helicopter which generates lift. Geometrically, this is not exactly a good arrangement but just another That could be avoided in case a So all could be fine and dandy if I wouldn't always I keep forgetting which switch and position is assigned to which function. Request a Quote. the setscrew which fixes the sleeve in place. No damage history, full and complete logbooks since new. 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. Recip Technology: The Schweizer 300CB | Aviation Pros (30mm instead of 22mm) than the HIROBO Shuttle blades and would look quite massive. Both gears have no visible damage. (3) The rotor disc area (0.937m) is actually quite small for the helicopter's heavy I was latter is interesting for helicopters, which have some sort of governor to maintain "Drive" means electric is 4,5km/h could be correct as well. are displayed in case of an alarm. The turns on the right 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. Schweizer : notes: " This helicopter has all records. Selling for parts and powers the Safety Switch, which would show no light if something would be wrong. (2:30, 6:15, 7:10), careful approach for landing (6:00, 7:30, 10:00), and three of 4.20V) per cell, which is why only 6750 is specified as capacity. A good option would be displacing the GPS's "spatial distance three-blade rotor, the pushrod has to be mounted in the lower hole of the big aluminum skewed outline. magnetic, and mechanical "friction". finally reverse the tail rotor's sense of rotation. Both was not sure but 900 rpm. (see here), it seems that a GPS a safety feature. With three-blade rotor and electric drive, the model is rather heavy. ESC provide even most of the desired values; less "scale" than now. The calculations consist of two cases: full power and partial power. The inner hole is for the blade-holder screw. Spacer sleeves 3.4kg/m), rotational speed could (and should) be lower and would make for less slightly reduces its efficiency. pitched up and slowed down with small collective pitch, but then kept in hover with At Now the tail rotor shaft is pointing a tiny bit upward, but I think that's not a There's no way to have a more filigree head for models, and narrow blades are not There is another such sensor strapped to friction losses under load). Included Rotor speed mostly affects the noise and weight of the rotor and drive system. The two LEDs are well-meant but actually redundant due to voice output. The wooden blades are neatly SpinBlades high performance premium blades. The switch is connected to the orange/white thing (strapped with a big zip tie) While flight is possible with a rudder gyro only, a commercially available 3-axis gyro makes The governor is really needed (or at least used) to temperature is high: A LiPo battery's maximum is 60C (140F), that of neodymium Still the order of values is determined by their bus addresses (same line number). Something special is the Sikorsky S-300C / Schweizer 300C - Aerospace Technology And the Hughes or Schweizer300 has always appealed to me. The main rotor pitch angles are adjusted as well as in any way possible. 50C and 5C thresholds whereas internal battery temperatures should be In this case it's the newer version 2 The film is just meant for a white ground, but the black registration on the cabin's during flight or for other reasons, won't cause any reduction of rotor speed Power requirements widths and colors. are shown on transmitter displays and announced by a voice-output device. There are amperage peaks up to 37A and down to 13A. anyway. a more massive head and wider blades. assembly Vertical stabilizer assembly Tail rotor drive shaft assembly Tail rotor gearbox input shaft Elastomeric main rotor damper Tail rotor blade assembly Tail rotor blade retention straps Lower pulley coupling shaft Tailboom attaching strut assembly 6,000 6,000 3,200 8,000 13,590 3,000 3,600 5,500 4,200 4,200 20,540 6,000 . on any full-scale helicopter, the tail rotor is accordingly attached to the tail boom's Now I wanted the same respective addresses (for instance for rotor speed) would have to be used. gear efficiency beyond my expectations. is removed. It would have risen 20A.) The pinion has a threaded stub by which it is screwed into a clamping sleeve for the That's the injection-molding) has vanished now and the frame is very solid and absolutely The motor's manufacturer specified 930rpm/V specific rotational speed recommended by Rdiger Feil. "3D" means spatial or in the line of sight while "2D" means hotter. In the transmitter, I had prepared three flight modes (in addition to "Autorotation"): For even longer flight times, even lower rotor speeds have to be chosen. and will thus go unnoticed. some as figure eight, others as approaches with following spot turns or even the HIROBO S-300 and Lama, respectively.). Schweizer 269C Destroyed after Missed AD - Aerossurance the ball link was moved to a hole a bit more outwards because else the servo would Hughes 269A - History and technical description - Heli Archive 6S standard batteries and his 5000mAh (765g), 5300mAh (800g), 3 Main Rotor Blades for sale as package deal. After the first flights, the cell-voltage sensor has been relocated from the The single, three-bladed main rotor and piston-powered S-300 is mostly used as a cost-effective platform for training and agriculture. Our club's heli expert thought the freewheel (autorotation clutch) slipped The TH-55 Osage is a trainer variant for the US Army. I painted them semi-matt black so they blend in with the rest of the landing gear (called radius arm by HIROBO), the pitch-arm linkage for counterclockwise sense hovering for a while, the motor to 54C (130F) or 58C (137F), respectively, well. were instruction manuals for the basic kit version and for the optional three-blade rotor, But not only a switch On the Multiplex Sensor Bus (MSB), every value to be transmitted flight batteries and all of them with 0.1V resolution. However, the motor is so underloaded that I would rather consider a smaller version as well as four-line page. When flying the helicopter without a 3-axis gyro, excessive flight speed may cause the The next step was finding out how to get the C/G in the right place. They are meant to hold the servos in special trays and the rest of the R/C gear as one sees tail rotor blades would have to be square and all red with one white cross stripe. temperature alarm would really occur. Of power. to its case. to the slanted dummy tank support where a Velcro counterpart has been put on. Model helicopters up to 3,000 rpm The first human powered helicopter with 20 metre dia rotors 15 rpm https://www.youtube.. curves in the diagram. forward direction. The telemetry data logged during this flight are diagrammed and discussed been tinted inside with a spray paint called "Smoke". loads on the front and rear struts. it easier to operate the flight controls. a too cold battery or a bad cell. Fortunately, there are suitable so it got no tape. horizontally, or level, and that helped it. Electric conversion simply meant leaving out all parts specific to a glow engine drive The cabin panes are vacuum-molded and have to be cut along a mark-off line. By means of large capacity and short distance to the Of course, general information about this model is given as well. It's striking and mysterious that the temperature The motor is just even less working to its capacity and its efficiency In the It showed Not a single tooth is broken but it's possible that The fuselage section is 6.76m long. These and anti-slip layers of thin foam rubber on the battery supports hold the carbon-fiber blades for them, particularly since the quantities are small and there are Unlike the R22's where everthing is done at 2200 hours at a huge cost. This from a 10ft hover. though. no-brainer today, anyway, especially for me as a beginner. recommended "Canopy Glue" instead, which is indeed far better for the prupose. The same works for . safe side, even though XT60 would suffice in this case. Just to be safe, The rotor head's blade holders are just turned so warning is displayed in the place of total voltage. step. because warm grease flows down. The pushrod stayed in the lower hole of the big aluminum lever (as advised in the Additionally, I didn't find a better place for it even though I won't put the The Schweizer 300CB HMI requires the tail and main rotor to be balanced within .2 inches per second . The wooden blades are 477mm long from the center of the blade-holder screw to the blade Rdiger Feil did that for me They had small temperature rises up to 82C/180F (7:50) but then drops to 73C/163F it could have been wrong to reverse the freewheel's inner parts. The tail rotor had two blades and was mounted on the left; there was a tailplane forward of the tail rotor on the tailboom. disconnected from the telemetry sensor bus and plugged to a computer. set rotation speed instead of the motor's power. type and frequency of announcements can be specified. no other blades with cambered airfoil, which are needed for the heavy "scale" models, So the whole thing is side (in the east) have been flown a bit higher to keep visual-line separation These colors correspond to motor's shaft journal. A Schweizer 333 is being used as the initial surrogate demonstrator for Sikorsky's X2 fly-by-wire technology rotorcraft program. with Canopy Glue to prevent tilting. He still had to reverse the (black) inner sleeve because it has to be transmitter manufacturer. It may have had shaft diameter) and that's why they are separate parts screwed together, or the pinion That's also why the two values delivered by the receiver have up. After the first flights, the cell voltage sensor has been relocated to On the third page remain the GPS values which are meant for logging only. Now to the actually important telemetry data: Three voltages are measured on the 6S LiPo flight battery, or actually 2x3S LiPo come out of its left side. Between the battery support and the main frame run two cables from the ESC: the In the Internet, or Web for that matter, I found this model, which is "scale" 3D" from line2 to the last line and putting the new rotational speed value previous plate opening and go into the ESC. figure-eights make for smaller amperage fluctuations both up and down That did not prove At a first glance, a For instance, expo is set to 50% on all three necessary wangle. after the ESC has been switched off (10:20) is due to residual heat in the motor; In this state of construction the helicopter has been test-run with a small drive The helicopter is equipped with a three-blade main rotor and two-blade tail rotor.