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01-09-2011, 05:29 AM | #41 (permalink) |
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yes... of course... green and red loctide goes only to the slider @tail and at motor pinion :-)
but you can loosen green loctide with an soldering iron :-) (but i think thats not a new point.. because if you wan't to fly an 90 class there are no newbies here i think (and i hope) :-) ) changing my nick lever this evening... further building tomorow, wire mesh arrived and is waiting at the customs office so i can do the wiring to the front.
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Velos 880, 800e Pro DFC, Mostro 700, Suzi Laos 800 RJX Xtreme 90EP, Outrage F50, Goblin 570KSE, Goblin 380 |
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01-12-2011, 06:26 AM | #42 (permalink) |
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@garfield
did you order your motor already? because why not using the scorpion 5020-520 motor, and a CC120A HV esc ? that with a 10:1 ratio would be excellent i think...and you will having much more lipo space because this motor is larger but smaller and o yes i crashed my tailboom when spooling up in the mud on sunday
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Sponsored by : Flying : SAB Goblin630 : scorpion 5020-450 /YGE 120HV(Beastx) Mikado Logo600 : scorpion 5020-450 /YGE 120HVK(miniVbar) AleeS Rush750 : scorpion 5020-450 /YGE 120HVK(Skookum SK540) |
01-12-2011, 03:06 PM | #43 (permalink) | |
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Quote:
yes, i ordered already. motor should arrive the next day's :-) i heared and read about the 5020-520 or 5025/5035 in the rjx.. i heared they have much power but don't have a wide RPM spectrum with the same amount of power? really thought twice but decided to go with more rpm and wider RPM spectrum. many people fly with the 4035-500 so i decided not to do an experiment. how heavy is your baby with 4000mah lipos? in germany there is an maximum of 5kg. if your heli is heavier you'll have to do some paper work and you need an approval for flight. and the 50' series motor is heavy.. 5000mah lipos are heavy... and CC ESC is heavier than kontroniks... didn't weight my heli since now, just a bad feeling.. i also had see the Jurien Salens-Mod of the battery tray, but it looks a little but strange to me, didn't like it.
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Velos 880, 800e Pro DFC, Mostro 700, Suzi Laos 800 RJX Xtreme 90EP, Outrage F50, Goblin 570KSE, Goblin 380 |
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01-12-2011, 03:14 PM | #44 (permalink) |
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just did my beastx and servo wire/mesh install :-)
everything is fine and very nice with this wire mesh and the heatshrink. but i'll have to pay attention on my aileron-servo-wire! i'll have to zip the wire so there will be no danger of contact to the main gear or main-shaft!! installation is not good until now. pictures say more than thousands of words, just have a look here:
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Velos 880, 800e Pro DFC, Mostro 700, Suzi Laos 800 RJX Xtreme 90EP, Outrage F50, Goblin 570KSE, Goblin 380 |
01-16-2011, 05:18 AM | #45 (permalink) |
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installed the Main and Tail Blades today and did the final beastx setup.
713mm EDGE FBL MB and 105mm EDGE TB the dimensions of the heli are impressive 1590.50mm main rotor diameter, tail-blade diameter like a dish! i'm still sitting here with open mouth, my girlfriend asked me if i'm stupid? just have a look but i'm thinking about my main and tail-blades. the distance between them is near zero! question to the experts: can this close distance be a problem (aerodynamical, not mechanical, mechanical they don't hit each other!)
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Velos 880, 800e Pro DFC, Mostro 700, Suzi Laos 800 RJX Xtreme 90EP, Outrage F50, Goblin 570KSE, Goblin 380 |
01-16-2011, 02:50 PM | #46 (permalink) |
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I wouldn't worry about it, its this way on most helicopters.
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Logo 800/Jeti DS16 |
01-17-2011, 03:28 AM | #47 (permalink) |
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:-) fine how much degrees of pitch did you set up? i have +/- 13deg collective and 11.5 cyclic. is that good/enough? my levers hit the main gear when i'm full negative and push elevator forward. --> see post #14 @thread "my 90EP" from aroxfive waiting for my 4500mah lipos and my ESC. weather is fine, want to maiden my first flight.... :-) EDGE blades are very well machined and very shiny, i love them and i'm happy that i didn't order RADIX blades, so let's see how they fly :-) !
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Velos 880, 800e Pro DFC, Mostro 700, Suzi Laos 800 RJX Xtreme 90EP, Outrage F50, Goblin 570KSE, Goblin 380 |
01-17-2011, 01:03 PM | #48 (permalink) |
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I think 11.5 cyclic sounds like a bit too much, not sure. Make sure you don't hve the binding you describe.
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Logo 800/Jeti DS16 |
01-17-2011, 01:38 PM | #49 (permalink) |
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jeah, just did my setup again.
microbeast lamp goes blue (=o.k.) at 10degrees. at 10 degrees the lever doesn't touch the MG. even at full negative + full forward and full aileron. i think thats ok. german importer ART means 17 degrees is possible. i think they mean collective. i tried this. 17 degrees isn't a problem but not at 11.5 degrees cyclic. i think i'll go with 10 degrees (blue lamp on at microbeast)
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Velos 880, 800e Pro DFC, Mostro 700, Suzi Laos 800 RJX Xtreme 90EP, Outrage F50, Goblin 570KSE, Goblin 380 |
01-17-2011, 02:21 PM | #50 (permalink) |
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Join Date: Dec 2007
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I have 8 deg cyclic and 13 deg collective in both directions (I'm using 690mm Radix blades on the X to keep the current draw a little bit on the low side). Donīt know if there is really need for more than that. I think your motor and esc will start crying at 17 deg collective with 713 mm blades .
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X-treme 90EP - Jive 80HV, Pyro 700-52, V-Stabi Minicopter Diabolo - Helijive, 4525-520LE, V-Stabi |
01-17-2011, 03:00 PM | #51 (permalink) |
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jeah, i didn't thought about 17deg. that was the answer of ART what's max possible ;-)
13deg. collective is way enough for me! stupid BEASTX manual and stupid myself... --> setup (L) ... "perfekt, if you can get 10-12deg. for 3D... setup for max cyclic... " and if you are an not so much experienced heli-builder you believe 100% of the manual and do not think about it.. you'll try to get 12degres... :-) if you talk to others like you guys you mention that 11.5 is a BIG value and that 10deg. will be much better. THANKS GUYS!
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Velos 880, 800e Pro DFC, Mostro 700, Suzi Laos 800 RJX Xtreme 90EP, Outrage F50, Goblin 570KSE, Goblin 380 |
01-17-2011, 04:40 PM | #52 (permalink) |
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To be honest, I'm setting the V-Stabi to 8 deg cyclic. Don't know what the maximum wil be under real flight conditions since the 8 deg aren't essentially the maximum.
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X-treme 90EP - Jive 80HV, Pyro 700-52, V-Stabi Minicopter Diabolo - Helijive, 4525-520LE, V-Stabi |
01-20-2011, 03:07 PM | #53 (permalink) |
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just installed CC ICE 120HV and eyeballed the BEC position today.
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Velos 880, 800e Pro DFC, Mostro 700, Suzi Laos 800 RJX Xtreme 90EP, Outrage F50, Goblin 570KSE, Goblin 380 |
01-21-2011, 11:55 AM | #54 (permalink) |
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Join Date: May 2008
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Hi,
I just finished my Xtreme 90 EP this week. I had some problems with the tail in the maiden flight. According to the manual above 1900 rpm 105 blades shall not be used. I got some weird vibrations that have been solved with the 95 blades of the kit. To use 105 they have to be very well balanced according to the manufacturer, and that was not my case. I also got the 93 main gear that was giving 2100 rpm with the Jive at 50% that was too much. The second day I replaced the tail blades and the Pyro for a Scorpion 400 and the headspeed went down to 1800 with the Jive at 70%. I had to adjust the tail servo arm since I started with 11 mm taken from another heli and it was too small. The microbeast was unhappy, the tail was missing mechanical gain. Now with 14 mm it is OK but I had no time to make a proper flight on that day . The first day with more headspeed that was shadowing the gain problem of the tail I was able to fly it, but the tail was not performing well and the Jive was getting very warm. The skids are a bit weak, I broke one in the tests and I replaced them with the trex 600 ones that are a bit bigger and for me they look better. Overall I like the Xtreme apart from a few points like the tail tube diameter that is too small and the belt needs to be very tight My config, some pics and the Jive log (sorry, it becomes illegible but it shows around 1800 rpm with the Jive at 70%) are below. Hopefully I will be able to upload a video soon. I am looking to increase the haedspeed to 1900 rpm, probably with the 100 teeth main gear and the 12 pinion I can get it with the Scorpion 400. With the pyro it is more difficult to go below 2100 I guess, ther is the only option to use the 100 main gear. My config: Xtreme 90 EP belt microbeast Align servos Jive 80 HV 12S Rhino 3700 Pyro 30 12 / Scorpion 4035 400 z-wave blades for testing Carlos |
01-21-2011, 01:14 PM | #55 (permalink) | |
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hi Druekerfish,
nice Flight Report, very interesting! questions : what tail-blade brand did you use? how much did you tighten your belt? what about your pitch values with the microbeast? collectice and cyclic value please. what did you mean with your words "mechanical gain"? the throw of the tail-blades? didn't you set up the full amount of travel at the tail slider? i had some problems with microbeast and less amount of tail-travel as possible on the slider with my roxxter33. when i set up FULL mechanical possible ways the tail-problems went away. i'm very curious and want to know everything so i can profit from others experience;-) just set up my CC 120HV ICE to governer@ 1500 - 1700 - 1898 (1898 is 95% Throttle) my setup is 12s Scorpion 4035-500 and 10T : 100T if the values of the CC are right, the HS of 1900 may be a good value for me. just did a quick run in my house (ony a few rpm, then cut throttle)... this heli is a little powerbeast compared to my others :-) 100 rpm and it blows like an hurricane sorry, i'm just impressed of that heli because it's so much bigger and powerfull compared to my roxxter 33 (600) and never owned such a machine courious waiting for your video just another few words about my build: filed the shaft on the scorpion a little bit (where the pinions screws go in). i think thats safer @much torque. Quote:
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Velos 880, 800e Pro DFC, Mostro 700, Suzi Laos 800 RJX Xtreme 90EP, Outrage F50, Goblin 570KSE, Goblin 380 |
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01-21-2011, 02:01 PM | #56 (permalink) |
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Join Date: May 2008
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Hi,
letīs see if I can answer those questions >what tail-blade brand did you use? I use to maiden my helis with cheap Hobbyking main and tail blades just in case something goes wrong. I weighted the 105 HK tail blades and they are identical to the tenth of milligram, but the tail was sometimes buzzing (humming). Yesterday I met a guy that happened to have a Xtreme 90 nitro also with tail problems that were solved by lowering to 95 blades. They are enough for all kind of flying according to RJX. >how much did you tighten your belt? for me it was the maximum acceptable, it was done by a RJX team pilot that had a look to my heli the other day. Bad for autos, but the tube diameter is small and there is big risk for the belt to get in contact with the tube and other parts if it is not tight. A general problem with 90 size belt helicopters and specially here with the narrow tube. >what about your pitch values with the microbeast? collectice and cyclic value please. I do not flight very agressive, collective 12 deg and cyclic to the maximum before having mechanical binding, I did not measure it. >what did you mean with your words "mechanical gain"? the throw of the tail-blades? the mechanical gain is increased just by increasing the servo arm, that is what I mean. I was trying to solve the tail problems with the tail gain from the transmitter and it was not enough till I increased the servo arm from 11 to 15 mm. In the manual it was not clear to me if tail the servo arm should be 13,5 like the others. It is the typical procedure of the tail gyros to go to the next servo arm hole to increase the gain if you do not manage to make it with the transmitter. >didn't you set up the full amount of travel at the tail slider? it is almost to the maximum. I normally do not like very agressive helicopters, but that can be set in the transmitter >i had some problems with microbeast and less amount of tail-travel as possible on the slider with my roxxter33. when i set up FULL mechanical possible ways the tail-problems went away. I understand, the power of the tail is also affected by the headspeed (since the head is driving the head), the limits as you say and other factors that sometimes we overlook while trying to solve quickly the problems on the field. Good luck with your heli! |
01-21-2011, 02:53 PM | #57 (permalink) | |
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Quote:
that sounds interesting... i tell you a story: i bought 105mm blades because i thought there are only 95mm blades in the kit. now i read your (the RJX) statement and thought about a chance to change them with the original 95mm of the kit if the 105mm don't fly as supposed. then i measured the blades out the kit and have a look: i don't think that blades are 95mm. RJX EP90 2010 Kit! That's strange...! But doesn't really matter..
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Velos 880, 800e Pro DFC, Mostro 700, Suzi Laos 800 RJX Xtreme 90EP, Outrage F50, Goblin 570KSE, Goblin 380 |
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01-21-2011, 03:24 PM | #58 (permalink) |
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They seem to be 105 mm. I bought my kit in late summer 2010 (it took for me a while to build it) and I got 95 mm blades. You can read the statement about using 105 blades above 1900 rpm in the manual, and with cheap blades I experienced the dangerous buzzing that is apparently the reason to limit it. Apparently the blades holder is bigger than a normal 600 heli and that helps to produce more thrust with 95 blades since the disk is bigger. It is something in between a 600 and another 700 heli like a TDR.
Did you get the 100 teeth main gear in the 2010 kit? I got the 93. BTW, according to the RJX team pilot I met the belt performs the same or better than the TT and he has several hundred flights in the electro and nitro 90 models without failures, just taking care that it is always tight. |
01-21-2011, 11:48 PM | #59 (permalink) |
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yeah, producing date may be the difference, i got mine in late november and there was also an 100t MG in the kit! maybe they changed something in the producing line. i read the 1900rpm limit in the manual. so i set up my CC yesterday to 1898rpm, witch is the max good governed value at 95% throttle, 1:10gear, 500motor and 12s according to the CC software.
just a feeling, no experience: 1900 seems to be good for 90class and flying no hard 3D. and i thought like you: belt is good enough, and if i need anything else: got tt-parts from laurens
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Velos 880, 800e Pro DFC, Mostro 700, Suzi Laos 800 RJX Xtreme 90EP, Outrage F50, Goblin 570KSE, Goblin 380 |
01-26-2011, 11:44 AM | #60 (permalink) |
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can't wait until tomorrow ...
my Lipos just arrived at the customs office meanwile i changed my deans to EC5 connectors. better soldering and more possible amps . Weight of empty Heli is now about 3.4kg. Lipos will be 2x700g, that will give me just perfekt 4.8kg.
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Velos 880, 800e Pro DFC, Mostro 700, Suzi Laos 800 RJX Xtreme 90EP, Outrage F50, Goblin 570KSE, Goblin 380 |
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