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nano CP X Blade nano CP X Helicopters Information and Help |
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05-06-2014, 12:01 PM | #1 (permalink) |
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Join Date: Dec 2013
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Main Motor Bog...
I havent really seen this discussed in too much detail, so I thought I would ask. How much bogging is normal in different situations? Being as this is my first CP heli, I do not know what is normal, and what is not! If the motor sounds like it's bogging, but still flies ok, is this fine? And is there any way to get rid of it, or make it not so noticeable?
I have the HH brushless kit, but I havent installed it because I thought I would wait until either I get much better at flying this thing, or until the motor dies. |
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05-06-2014, 07:03 PM | #2 (permalink) |
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Join Date: Dec 2012
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I can't really tell you much about the bogging. However, mine bogged a lot in different situation and I'm utilizing 35C LiPos. Therefore, I decided to install the HH BL kit prior to the stock motor failing. It's a difference between night and day! No more bogging, even though I'm still using the 35C packs, instead of the 45C, as recommended for this kit.
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"Nothing is as constant as changes" DX9, DX6i, Blade Nano CP X, ZYX "Blade" 130X, Blade 180 CFX, Blade 230S, Blade 300X, Blade 450 3D (about 2 b FBL; have the parts, not the time), Blade 180QX, Blade 230S V2, Convergence, Mini Convergence. Last edited by Neunerball; 05-06-2014 at 08:50 PM.. Reason: Corrected typo (30C to 35C) |
05-06-2014, 07:33 PM | #3 (permalink) |
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Join Date: Mar 2013
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the nano cpx isnt a power house so bogging is normal during hard collective manuvers.. the brushless kit will eliminate most or all of the bog depending on the total weight of the heli...
if u put alloy frame and everything on .. the HH BL kit will make it about as good as a stock cpx. if you keep it light . the BL will make a nice improvement. I say go ahead and put it in . the BL will last for years.
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05-06-2014, 09:40 PM | #4 (permalink) |
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Join Date: Jan 2006
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One thing that will help is to take off a bit if collective with the endpoints.
I usually tune for maximum rate of climb at full throttle/collective out of a hover by taking a bit of pitch out with the endpoint. You can tune for almost no bog, but your rate of climb will suffer, so it is a trade-off. Once you get the collective endpoint set up where you want it for positive pitch, flip the ship over and repeat for negative pitch. In a very brief time you can get it tuned so that you have minimal bogging and the same rate of climb right side up or upside down. The other thing to do, if you are running flat curves at less than 100% is to try to emulate a governor by moving the endpoints up to 100% (i.e. increasing the throttle when the collective is increased). Governors increased the throttle as necessary when the collective and/or cyclic changes and changes the load on the motor. You can do a bit of this with curves. If you are already at 100% then there is no way to go beyond that. Lastly, not all batteries are created equal. I cannot remember the brands, but some made a huge difference with the original MCP X. You might start a poll to see what people like in terms of batteries. I never installed the brushless in the Nano as I did not feel it needed it (after putting a lot of time on the MCP X, which was, IMHO, quite underpowered). Your mileage may vary.
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05-07-2014, 11:14 PM | #5 (permalink) |
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Join Date: Mar 2014
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I also think the Nano is very capable in stock form. Even when it's bogging it does what I ask it to, that's all I can ask of it.
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07-22-2014, 01:23 PM | #6 (permalink) | |
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Join Date: Jun 2012
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Quote:
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07-22-2014, 01:59 PM | #7 (permalink) |
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Join Date: Sep 2013
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[QUOTE=Ah Clem;5825796]
The other thing to do, if you are running flat curves at less than 100% is to try to emulate a governor by moving the endpoints up to 100% (i.e. increasing the throttle when the collective is increased). Governors increased the throttle as necessary when the collective and/or cyclic changes and changes the load on the motor. You can do a bit of this with curves. If you are already at 100% then there is no way to go beyond that. QUOTE] +1 Toyed with this last night and my nano is flying better with less bogging. I am going to try the endpoints adjustment tonight
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Fly it like you stole it! SpringerKing DX6i, 1sq, MSRx, Nano Cpx, 130x, 300x with Beastx, 300xl with Skookum 540 |
07-23-2014, 12:16 AM | #8 (permalink) | ||
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Join Date: Mar 2014
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Another way to change the pitch is to go into the servo settings and make an adjustment to the pitch travel. It is represented as a percentage (in DX8, not sure about DX6i) and limits the end travel of the pitch signal.
It seems to be simpler method, at least for me, as you don't have to try and adjust the entire pitch curve to keep it linear. It remains at it's full linear curve and simply limits the signal travel along the preset pitch curve. Of course this may all be moot, I'm not sure if you can adjust that on a DX6 I also know that a stock Nano is by nature boggy. It's a great collective management training tool. Try to flip and roll it with a minimum of collective to keep the motor from bogging. This will teach you fine collective management. I second the "the nano flies great in stock form" comment. I had a nano with the HH brushless upgrade and my dad has one that is bone stock. After fighting tbo on mine I flew his one day and was instantly jealous of the trouble free nature of it's flight characteristics and seriously considered bringing mine back to stock. It flew great and there's nothing wrong with keeping it that way. In all reality I really don't think that you need to change the pitch settings in stock form. You should aim rather to learn to fly better. The stock nano can be flown well in stock trim with full settings. And to prove my point....watch this
Oh ya and eflite 45c's 150mah and oversky 35c 200mah batteries are the best I found. Eflites being my favorite.
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07-23-2014, 03:10 PM | #9 (permalink) |
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Join Date: Mar 2013
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Just fly through the bogging! Learning to manage your collective is key with this heli. And that Hamish video is a bit misleading, he's using the ground effect as a cushion to get more pop off the deck. Great idea if you know what you're doing, but a little sneaky IMO
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Bunch of useless micros, 300CFX, 450 Sport FBL, 450 Pro DFC, DX7s "3D? I was just trying to land." |
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