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Post by chipwich on Mar 2, 2012 11:03:16 GMT -4
I'm planning to mount my Chaos 600 Pro TT FB basic kit. Need 5 rotor head suggestions, please. I see that the RCA 5 rotor head offerings are sold out, so looking at this one from Century... www.centuryheli.com/products/productdetail.htm?prtnm=CN1115¤tid=472I'm wondering what else I need, like a 5 rotor swash plate, ball links, etc. Planning to use BeastX stabilization, and a rotor speed of ~ 1350. Also, wondering if the stock tail rotor blades will have enough authority for scale/sport flying? Anyone gone down this road before? Thanks.
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Post by doc121 on Mar 2, 2012 12:37:32 GMT -4
chipwich, I don't really know about Century's rotorheads. I posted a question about them earlier. No response yet. I do know you will need a swashplate to handle 5 blades. Probably also available at Century.
Tail rotors will need to be longer to handle the additional torque from multi head rotors. The MH6M has a 6 bladed head and a 4 blade tail. Hope this helps.
If you look at the botom of the page to the above link you will see recommended parts to complete the head assembly.
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mike
ROOKIE
Posts: 8
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Post by mike on Mar 2, 2012 14:57:52 GMT -4
I'm looking at the same thing finding a 5 bladed head for my 600. You will need the swash plate ,follower, and links plus a couple of other items. The century head uses a 4 mm Jesus bolt and I think the chaos if I looked at it right uses a 3mm Jesus bolt. I know the century head comes with an adaptor for a 10 mm shaft I would have to measure the shaft on the chaos as I have not started building mine. I know people have used them on trex 600 but it is hit or miss with the head having play in it. Look at you tube and see condor he did a 600 size chaos in a 700 fuse md 500 with a 5 bladed head. You may want to contact RCA and see what they have I cannot believe that they don't have any 5 bladed heads for their md500 I am also curious to see the length of the main shafts on the fly bar and fly barless chaos 600 I could be wrong but thought on other helis one is shorter. I looked on RCA website but could not find main shafts on their website..here is his build log maybe will help you out www.scalerchelis.com/phpBB2/viewtopic.php?f=17&t=12399&hilit=Chaos+600Mike
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Post by doc121 on Mar 3, 2012 0:35:10 GMT -4
Hey guys, RCA does have a 5 blade head for 600 size. As a matter of fact they have 2 listed. Just click on multiblade rotor heads on their CATAGORIES list on the the homepage. Hope this helps.
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mike
ROOKIE
Posts: 8
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Post by mike on Mar 3, 2012 0:46:18 GMT -4
Doc,
Yeah they are out of stock and have been for sometime now, that is why I suggested he call to see if they had any. Hopefully they get them back in stock.
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Post by chipwich on Mar 3, 2012 1:38:09 GMT -4
Thanks for all of the replies guys. I'll post in a few other forums and relay here what I find out. The truth is that RCA offers a lot of great MD500 fuselages, but little in the way if rotor heads, at least what is in stock.
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Post by Dr. Evil on Mar 3, 2012 14:11:27 GMT -4
Thanks for all of the replies guys. I'll post in a few other forums and relay here what I find out. The truth is that RCA offers a lot of great MD500 fuselages, but little in the way if rotor heads, at least what is in stock. I would give them a call, sometimes there are stuff that are not listed on their website. Just a thought.
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Post by chipwich on Mar 5, 2012 23:47:40 GMT -4
Thanks Dr. Evil. I called Century tech support, gave them my game plan including a targeted 1350 head speed and BeastX stabilization. They helped me with some part numbers: 5 blade rotor head: CN1115 swashplate: CN1117-5 follower: CN1108b I ordered those parts from heli-world. To get in the ballpark for the targeted head speed of 1350, I chose a 6S battery and 890kv motor based on this calculation: 170t main / 15t pinion = 170t / 15t = 11.33:1 ratio (890kv * 22.2v) * .9 = 17782.2 17782.2 / 11.33 = 1569.48 * .85 = 1334 I ordered a Scorpion 4025-890 and 15t pinion from RCA. Next up are blades. Century recommended either 500 or 550 blades for a 600 based multi-blade build. I started poking around, but I'm definitely going to need some more help. There are material (wood, fiberglass, CF), shape (symmetrical, semi-symmetrical, tip profiles), length (500 or 550), weighted (yes or no) choices to be made. I understand how the shape of a wing effects lift and drag on an airplane wing, but no idea what is preferable for a scale heli. I guess that I have some research to do.
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mike
ROOKIE
Posts: 8
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Post by mike on Mar 6, 2012 0:51:55 GMT -4
Chipwich
I sent a pm to a guy over on the scale section who has used that head. I asked question on the Jesus bolt and main blades. He replied back with that being a good head and all you will have to do is drill the hole out for the Jesus bolt from 3 to 4 mm. He also said he has used 550 to 610mm main blades with great results. I may pick this head up as well for my 600 looks like a great combo for an MD500. When you get it post your results on how the head lines up with the hole for the Jesus bolt on the main shaft. The main shaft may have to get shaved down some for the hole to line up for the Jesus bolt. I know I have read that on numerous forums. Thanks
Mike
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Post by chipwich on Mar 6, 2012 21:44:32 GMT -4
Thanks a bunch Mike. I will keep my eyes open for the Jesus bolt issue and report back here. Still looking for blades. Have found some candidates, but everyone seems to be sold out. Weighted 550s would probably be the best, if I could find them.
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Post by Dr. Evil on Mar 7, 2012 9:54:05 GMT -4
Thanks a bunch Mike. I will keep my eyes open for the Jesus bolt issue and report back here. Still looking for blades. Have found some candidates, but everyone seems to be sold out. Weighted 550s would probably be the best, if I could find them. RCA carries scale blades unless they're sold out.
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Post by chipwich on Mar 7, 2012 22:53:34 GMT -4
They are sold out. On the other hand my RCA fuse showed up today, and it looks really good. The mounting woodwork is already installed, a plus for the scale newb that I am.
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Post by chipwich on Mar 12, 2012 19:14:49 GMT -4
Chipwich I sent a pm to a guy over on the scale section who has used that head. I asked question on the Jesus bolt and main blades. He replied back with that being a good head and all you will have to do is drill the hole out for the Jesus bolt from 3 to 4 mm. He also said he has used 550 to 610mm main blades with great results. I may pick this head up as well for my 600 looks like a great combo for an MD500. When you get it post your results on how the head lines up with the hole for the Jesus bolt on the main shaft. The main shaft may have to get shaved down some for the hole to line up for the Jesus bolt. I know I have read that on numerous forums. Thanks Mike That was dead on. The head looks really nice, but it looks like I will need to machine about a 1/16 of an inch off of the end, and drill the bolt holes. I've got a grinder, so removing some metal off of the top probably won't be too challenging, but I am a little worried about drilling the bolt hole correctly. BTW, mine didn't come with the 10mm sleeve, so I've got a call in to Heli-World tech support. On the blades, Ron at JustScale is going to custom make some 550 scale blades for a reasonable price.
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mike
ROOKIE
Posts: 8
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Post by mike on Mar 12, 2012 19:28:41 GMT -4
Chipwich
I thought that was the case with the head. With drilling out the Jesus bolt use a drill press if you have one or see if a machine shop will drill it out. I would not try and use a handheld drill unless that is your only option. I am following the information on the other forum as well. I have looked at some things from just scale as well. Let me know about the sleeve RCA just came out with a 700 size rotorhead that looks good, maybe they will make it in a 600 size. I will send a pm to the gentleman I talk to and forward it to you so you can get info when you need it.
Mike
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Post by chipwich on Mar 12, 2012 23:19:29 GMT -4
Thanks again Mike. Yes, I do have a drill press, so wish me luck. I don't know whether you saw this thread, but it might come in handy. It's about a Chaos 600E into an Augusta install, and has some interesting thoughts on the Jesus bolt.
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