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Old Jan 25, 2008, 10:18 PM
www.insideheli.com
Joined Jun 2007
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Anyone weight the Frame before installing the head an tail? Would really like to know what the bare frame weighs.

SPaRX
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Old Jan 26, 2008, 02:08 AM
Team Mulikow 3D
Oxfordshire, UK
Joined Jan 2007
3,901 Posts
Quote:
Originally Posted by sparx
Anyone weight the Frame before installing the head an tail? Would really like to know what the bare frame weighs.

SPaRX
The frame as bare as it came (assembled) was just under 70 grams
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Old Jan 26, 2008, 05:55 AM
Team Mulikow 3D
Oxfordshire, UK
Joined Jan 2007
3,901 Posts
Guys,

Just a bit of thinking - just wanted to check with you guys that I have my thinking correct.

CopterX 200
Main gear 120 teeth, I measured it at 60.6mm with my calipers
circumferance = pi X diameter therefore 3.142 X 60.6 = 190.41
tooth spacing = 190.41 / 120 = 1.59mm

King V2
Main gear 140 teeth, I measured it at 71mm with my calipers
circumferance = pi X diameter therefore 3.142 X 71 = 223.1
tooth spacing = 223.1 / 140 = 1.59mm

This is reflected by the fact that when I roll the King gear around the CX200 main gear as it engages very cleanly. Goes this mean that I can use King pinions (and hence otors) on my CX200 ??

Does my thinking work or have I got something wrong ??.

Cheers,
Mike.
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Old Jan 26, 2008, 06:29 AM
Team Mulikow
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Manila, Philippines
Joined Oct 2006
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Your data very well confirms that they are compatible. Soneebee had used a J-Team 9T pinion (that I used on a Honeybee CP2) on the CopterX 200.
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Old Jan 26, 2008, 08:08 AM
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Sounds very promising.
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Old Jan 26, 2008, 08:24 AM
Heli Hooligan
London
Joined Dec 2006
6,049 Posts
Yesterday I received parts to convert my Wasp V3 from FP to CP. The CP blades are longer 2005mm in lenght from bolt hole to tip, and 30mm chord. Perhaps these could be tried on the CX200.
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Old Jan 26, 2008, 08:41 AM
Team Mulikow
Gino CP's Avatar
Manila, Philippines
Joined Oct 2006
9,565 Posts
"Yesterday I received parts to convert my Wasp V3 from FP to CP. The CP blades are longer 2005mm in lenght from bolt hole to tip, and 30mm chord. Perhaps these could be tried on the CX200."

Wow, that's a huge rotor disk!
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Old Jan 26, 2008, 10:11 AM
Heli Hooligan
London
Joined Dec 2006
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Ha ha, I mean 205mm blades. The rotor disc comes out at 470mm.
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Old Jan 26, 2008, 11:37 AM
Heli Hooligan
London
Joined Dec 2006
6,049 Posts
I just place an order for two CX200's with ehirobo; one for flight and the other for spares. I also asked them not to ship it yet and wait for my instruction, so that I can add to my order when they post spare parts on their website; e.g. main shaft, feathering shaft, tail shaft, etc. This way I secure the price at $99.99 each and I can still get the spares, paying shipping only once.
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Old Jan 26, 2008, 12:23 PM
Team Mulikow 3D
Oxfordshire, UK
Joined Jan 2007
3,901 Posts
Nice one NIck - I'm very tempted to buy another one as spare / reserve.

Just had flights 2 and 3 and I have to say I'm very happy with it

I tweaked the Pitch setting on the swash so the I was hitting the head with the mixer base and then backed off 2 clicks to get maximum lift, tweaked the throttle curve to 0, 95, 100, 100, 100 and upped the pitch a bit (now 38, 62, 75, 88, 100) . I'm hovering just above half stick so I still really need a bit more power - I've got a couple of motors on the way to try so I'll report when they arrive. I can still tidy this up easily and lose about 30 grams (though I've not used the canopy yet which would put 14 back on) by using a lighter receiver and ESC.

One caveat though - you 3D guys will need to put a much stronger motor on and put the heli on a strict diet. However it's brilliant for duffers like me that are still working on their orientations - I can easily take my thumbs of the stick for a 5 - 8 count

Cheers,
Mike.
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Old Jan 26, 2008, 01:17 PM
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Weight of motor?

Watts of motor?

Dimensions of motor?

Any help greatly appreciated.
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Old Jan 26, 2008, 04:21 PM
Team Mulikow 3D
Oxfordshire, UK
Joined Jan 2007
3,901 Posts
Quote:
Originally Posted by Lota Fun R
Weight of motor?

Watts of motor?

Dimensions of motor?

Any help greatly appreciated.
Not much of any

It's pretty small, and probably light, but it's certainly not very powerful (this is the stock motor that I'm using) - sorry I forgot to weigh it before I fitted it.

It is diameter 22mm and 24mm tall (ignoring the shaft).

Cheers,
Mike.
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Old Jan 26, 2008, 05:22 PM
www.insideheli.com
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If someone could fill in the gaps here, I would greatly appreciate it.

Weights:

Frame : ~70g
Blades (pair) : ?
Rotor Head: ?
Tail Assembly: ?
Canopy: 14g
Landing Skids: ?

What I am really interested is the weight of those plastic blades. Putting woodies on should save some considerable weight.

Thanks

SPaRX
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Old Jan 26, 2008, 06:05 PM
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Joined Oct 2007
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Weights

Sparx, couple of weights for you.

The bare frame is 66 grams no landing skids.

The stock motor is 27 grams (without pugs installed)

Cant help on the rest as the heli is now assembled

Quote:
Originally Posted by sparx
If someone could fill in the gaps here, I would greatly appreciate it.

Weights:

Frame : ~70g
Blades (pair) : ?
Rotor Head: ?
Tail Assembly: ?
Canopy: 14g
Landing Skids: ?

What I am really interested is the weight of those plastic blades. Putting woodies on should save some considerable weight.

Thanks

SPaRX
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Old Jan 26, 2008, 06:08 PM
Registered User
Joined Oct 2007
277 Posts
Sounds Good Mike

Mike, I am like you. Long ways till I need 3D. Sounds promising on the stability.

Some questions

1) What tooth main pinion are you using on the stock motor?

2) What are you using for ESC, Servos, Rx

3) What is the weight of your battery

4) can you get an AUW on your heli?

I was hoping that with a 14 tooth main pinion the heli would have so jump. What are you getting for flight times?




Quote:
Originally Posted by MikeHRC
Nice one NIck - I'm very tempted to buy another one as spare / reserve.

Just had flights 2 and 3 and I have to say I'm very happy with it

I tweaked the Pitch setting on the swash so the I was hitting the head with the mixer base and then backed off 2 clicks to get maximum lift, tweaked the throttle curve to 0, 95, 100, 100, 100 and upped the pitch a bit (now 38, 62, 75, 88, 100) . I'm hovering just above half stick so I still really need a bit more power - I've got a couple of motors on the way to try so I'll report when they arrive. I can still tidy this up easily and lose about 30 grams (though I've not used the canopy yet which would put 14 back on) by using a lighter receiver and ESC.

One caveat though - you 3D guys will need to put a much stronger motor on and put the heli on a strict diet. However it's brilliant for duffers like me that are still working on their orientations - I can easily take my thumbs of the stick for a 5 - 8 count

Cheers,
Mike.
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