Mcpx brushless weight

[Spunjah413]

Larry are you kidding me? Thats ridiculously heavy for a 1S setup, lol. And a counter weight? You need to shorten your tail and adjust your batts better.

None of my birds have broke the 65g w/ battery weight (550). Even with the 120SR tail i used to run.

[CousinLarry]

I have the boom at the recommended 155mm from main shaft to tail shaft.

I have the 550's slid as far forward as possible (as the canopy will allow). Even then it was still tail heavy. The nose weight is 2.5g's.. Even without it it would be just about 70g's all up.

It's not short on performance, that's for sure. hahaa

I'm open for suggestions on weight reduction! I'm sure the X frame and metal bits don't help.

[Ampdraw]

Originally Posted by CousinLarry

I have the boom at the recommended 155mm from main shaft to tail shaft.

I have the 550's slid as far forward as possible (as the canopy will allow). Even then it was still tail heavy. The nose weight is 2.5g's.. Even without it it would be just about 70g's all up.

It's not short on performance, that's for sure. hahaa

I'm open for suggestions on weight reduction! I'm sure the X frame and metal bits don't help.

Stock canopy or Type A canopy and fit the lipo from the front only pushing it in far enough to clear the canopy.

Perhaps you have a bunch of wiring and connectors that you could reduce. Copper is heavy.

One benifit of a lighter heli besides performance is less damage when you auger it in.

Amp

[CousinLarry]

No excessive wiring.. I guess I'll order a typeA canopy and check it out..

But that still will only get it down to 69-70g's. Really, aside from swapping out parts for plastic bits, I can't think of any ways to make it lighter.

Actually, now that I think of it, the main motor is plugged with connector to the ESC, I guess I could pull that and direct solder. Not sure how much weight that would save.

Pic:
http://cousinlarry.com/images/rc/mcpx/915mcpx-1.jpg

[tommy217xxx]

Larry, Your bird doesn't look that much different then mine. I dont see how your bird weights in at 70 grams w/o a battery. Your 20g heavier then me.

Edit: Just saw that is was with battery. You could shave a little weight with the motor plug.

[fury118]

So i am happy my futur 3s with microbeast will be around 60g without lipo.
I hope to go about 55g, so it's not so heavy

[fury118]

Originally Posted by CousinLarry

No excessive wiring.. I guess I'll order a typeA canopy and check it out..

But that still will only get it down to 69-70g's. Really, aside from swapping out parts for plastic bits, I can't think of any ways to make it lighter.

Actually, now that I think of it, the main motor is plugged with connector to the ESC, I guess I could pull that and direct solder. Not sure how much weight that would save.

Pic:
http://cousinlarry.com/images/rc/mcpx/915mcpx-1.jpg

It seem's to me that the ESC and tail wire are big.

[CousinLarry]

ESC -> motor - I am going to cut and solder that.. We'll see if that helps .

But the tail motor wire is cat5 wire, it's as short as it can be. Nothing to change there.

[fury118]

It's more the diameter to reduce than the lenght

[CousinLarry]

Pretty sure almost everyone uses that cat5 wire.

[65L88]

Originally Posted by CousinLarry

Pretty sure almost everyone uses that cat5 wire.

Not me, I don't like the look of it. I use heavy duty enameled wire, 26awg, two strands parallel along the bottom of the boom with heat shrink to hold it in place.

[Saltnpeppa]

Stock BL except for
- lynx solid CF tail boom
- homemade tail wires. 24 gauge plastic coated. My heaviest mod but solid as a rock.
- lynx tail rotor
- extreme skid set with twin boom tail brace
- small cable tie tail boom mod (outstanding!)
- Microheli titanium main shaft & autorotation gear (bling but I love it)
- Lynx V2 swash
- Extreme canopy (very strong plastic - $3.69 on sale at HeliDirect!)

53g dry, 69g with Nano-tech 300 maH battery

Flies superbly. Love the auto gear. Sounds meaner and spins for ever after landing.

[Dirtbag]

I have 2, 1s double bl and 2s double bl

1s:
▪Bolt cf skids
▪Supermicro 3.5A double stacked fets esc for main motor
▪12000kv main M5 motor
▪Supermicro Mx3a for tail motor
▪12000 kv outrunner tail motor from HK
▪Extended solid boom and solid cf main shaft
Everything else stock.
▪49 grams with 300mah nanotech
▪39-40 grams without battery (scale couldnt decide)

2s converted mcpx:
▪ mcpx bl frame, canopy and motors, skids and extended solid boom
▪ Xp7a for main motor
▪ Oversky mx10a for tail motor (its faster than the xp7a)
The board and servos are getting power through the bec of the xp7a
▪ 69 grams with 2s 300mah nanotech
▪ 50 grams without battery
▪ 210 grams of thrust before bog, 190g sustained

Currently building a 2nd 2s, full of bling, Trex 150 outrunner motors, carbon skids, fibreglass canopy, its all put together but waiting on esc's, 52g without battery and esc's.

[StuckNaTree]

52.5g is what mine is.
Just under 60g with battery.

Microheli frame
Few metal pieces
CF main shaft and tail
120sr tail motor

Originally Posted by Saltnpeppa

Stock BL except for
- lynx solid CF tail boom
- homemade tail wires. 24 gauge plastic coated. My heaviest mod but solid as a rock.
- lynx tail rotor
- extreme skid set with twin boom tail brace
- small cable tie tail boom mod (outstanding!)
- Microheli titanium main shaft & autorotation gear (bling but I love it)
- Lynx V2 swash
- Extreme canopy (very strong plastic - $3.69 on sale at HeliDirect!)

53g dry, 69g with Nano-tech 300 maH battery

Flies superbly. Love the auto gear. Sounds meaner and spins for ever after landing.

I used some thick gauge wire on my tail motor also, done with that fragile magnet wire. Works great!

[sethy79]

I want to join the fun too:

1s double brushless
Microheli advanced x-frame
xp-7a/mx-3a escs all direct soldered w/stock battery connector
Microheli adanced x BL swash
Xtreme BL main rotor head
Stock BL grips
BL feathering shaft
microheli solid CF mainshaft
V1 board
3mm hollow CF tail shaft 155mmish
Green KBDD pilot's choice blades
RKH 7mm aluminum tail mount
Spin 16000kv main / Hobby King 12000kv tail with Plantraco prop
Airtime skids
Stock canopy that's been plastidipped. It's heavy but indestructible. I've had it for 15 months since I bought the mCPx and learned to fly collective pitch.

=Total Weight
47.22 grams without battery