Author Topic: Big Heli component recommendations  (Read 530 times)

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Offline GaryX1001

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Big Heli component recommendations
« on: March 08, 2018, 02:02:43 PM »
hello friends,

i plan to build a big heli, as i had so much luck with align i would like to stay in this league, so i look for a 760x or a t-Rex 800e  :coolguy:

as i have not build something that powerful yet (servos which push 23kg  :b0708:) so i Need some info about how to..

i'm on Spektrum, having a DX18, i would buy the heli with beastX pro, but it doesn't say pro HD for high voltage design, will the normal pro Version be enough?
do i have to get a Special HV Receiver?

These questions may look noobish, but i have build 4 helis so far, esky belt cp v2, copterx 500, trex 500 and trex 550, but they all worked without higher voltage  :b0708:


i appreachiate some recommendations :) (appreciate? aprechi... hard to type  :b0201:)

Offline boykintom

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Re: Big Heli component recommendations
« Reply #1 on: March 09, 2018, 04:49:44 AM »
Gary,


I'd love to help, but you are completely out of my league with this one.  I've built (and rebuilt) 2 Honeybees, an HK 450 Pro, and a Trex 450, along with a couple of MCPX's, but nothing even remotely close to what you are planning.  That said, I know there are others on this forum that can help you, and I'll bet one of them will be along.

Best of luck with your build,

Tom
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But what goes up, must come down"
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Offline Sobodad

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Re: Big Heli component recommendations
« Reply #2 on: March 09, 2018, 07:33:17 AM »
From what I understand from your post is that you want to use a normal RX on a high powered setup .. Yes ? ..

Any RX will do the job ..

What you need is a UBEC or an ESC with an UBEC built in that can step down the power supply to the normal level of the RX ..

All servos run on up to 7.4v which your ESC / UBEC will supply to the RX ..

What servos are you planning on using and how many ?

What Motor will you be using ?

As long as your ESC is big enough to handle the Max AMP (+25% to be safe) drawn by the motor, the UBEC side of it will supply a max of 7.4v to the RX and Servos

I personally use an 85A Turnigy ESC on my MSH Protos 500 which has UBEC built in ..

On my petrol powered Venture CP (Raptor 30 size) I use a 20A UBEC that steps down the power to 7.4v connected to a 12v battery ..
« Last Edit: March 09, 2018, 07:37:38 AM by Sobodad »
Coax: Hunt Eagle V1 .. NE Solo V2
FP: NE Solo Pro V1 .. Walkera V200D02
CP: NE Solo Pro 180 3D .. Esky Belt CP 450 .. Esky Belt CPv2 450
CP: MSH Protos 500 .. MSH Protos 500 Airwolf Fuse
CP: JR Venture .30 Gasser
Quad: QR Ladybird V2 (x2) .. Turnigy SK450 .. AR Drone V1
Plank: Bixler v2

Offline GaryX1001

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Re: Big Heli component recommendations
« Reply #3 on: March 09, 2018, 02:21:43 PM »
hello guys & thanks for the reply,

i'll use this Standard Equipment,

●T-REX 760X Kit Set x 1 set
 ●760 Carbon Fiber Blades x 1 set(2pcs)
 ●105mm Carbon Fiber Tail Blades x 1 set(3pcs)
 ●850MX Brushless Motor(490KV/4535) x 1
 ●DS820M High Voltage Brushless Servo x 3
 ●DS825M High Voltage Brushless Servo x 1
 ●Platinum HV 160A V4 Brushless ESC x 1
 ●Microbeast PLUS Flybarless System x 1

http://shop.align.com.tw/product_info.php?products_id=6274&language=en


Offline Sobodad

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Re: Big Heli component recommendations
« Reply #4 on: March 09, 2018, 05:28:24 PM »
Yep that looks pretty good mate  :t2030:

Just plug in your RX and your good to go ..

Of course you will need to do Build Pics and Maiden / Flight videos  :t2923:
Coax: Hunt Eagle V1 .. NE Solo V2
FP: NE Solo Pro V1 .. Walkera V200D02
CP: NE Solo Pro 180 3D .. Esky Belt CP 450 .. Esky Belt CPv2 450
CP: MSH Protos 500 .. MSH Protos 500 Airwolf Fuse
CP: JR Venture .30 Gasser
Quad: QR Ladybird V2 (x2) .. Turnigy SK450 .. AR Drone V1
Plank: Bixler v2

Offline GaryX1001

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Re: Big Heli component recommendations
« Reply #5 on: March 10, 2018, 01:11:01 AM »
so, it doesn't matter what RX i use?
i would plug in an old 7ch Receiver from spektrum

Offline Sobodad

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Re: Big Heli component recommendations
« Reply #6 on: March 10, 2018, 05:39:39 AM »
RX gets its power from the ESC / UBEC ..

The power is reduced to 6v-7.4v automatically :)

So plug in any RX you have and it should be fine  :t2030:
Coax: Hunt Eagle V1 .. NE Solo V2
FP: NE Solo Pro V1 .. Walkera V200D02
CP: NE Solo Pro 180 3D .. Esky Belt CP 450 .. Esky Belt CPv2 450
CP: MSH Protos 500 .. MSH Protos 500 Airwolf Fuse
CP: JR Venture .30 Gasser
Quad: QR Ladybird V2 (x2) .. Turnigy SK450 .. AR Drone V1
Plank: Bixler v2

Offline tntrcnutz

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Re: Big Heli component recommendations
« Reply #7 on: March 12, 2018, 08:02:40 AM »
Another thing to consider is to make sure you use aluminum or extra heavy duty control arms for the servos .
On a machine like this you don't want to risk any of them breaking under stress. They are too flimsy for the weight of the Helli.
 

 :t2030:

IF FLYING R.C. WAS ILLEGAL... HER AND I WOULD BE CAREER CRIMINALS

Offline GaryX1001

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Re: Big Heli component recommendations
« Reply #8 on: March 15, 2018, 05:16:04 PM »
i just received the parcel, they took the microbeast plus out of the box, damn... had to email them now again... i hate that  :t2416:

all other things are amazing.. the size of the canoby... wow... the weight of the Motor  :t2980:
will get an update on this when i finished the email Thing about the microbeast...

Offline Davesheli

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Re: Big Heli component recommendations
« Reply #9 on: March 15, 2018, 11:03:38 PM »
I always love watching your videos, but I sure do miss the heli sport flying ones... Soooo looking forward to this one....  :t2980:




 :coolguy:

Offline GaryX1001

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Re: Big Heli component recommendations
« Reply #10 on: March 16, 2018, 01:23:23 PM »
well, this is my first fbl Setup, so i will Need some help :)

how is the ground handling of such a System and landing behaviour? what when i land in windy situations and Need aileron movement to set it down secure? i have read that These are the critical moments with FBL.

Offline Sobodad

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Re: Big Heli component recommendations
« Reply #11 on: March 16, 2018, 07:30:49 PM »
I have a 550 FBL setup and honestly I have not had any problems with take off and landings.
In my experience I have found that larger helicopters are actually easier to fly than smaller ones.
They fly a lot more smoothly and gracefully, resulting in less twitchy reactions from control inputs.

The trick is to lift off quickly once up to take off RPM, and not leave it sitting on the ground for to long.
Same in reverse for landing, hover it into place, then set it down and quickly power down.

Doing this the FBL will not over-react to anything whilst the heli is sitting still on the ground.
Coax: Hunt Eagle V1 .. NE Solo V2
FP: NE Solo Pro V1 .. Walkera V200D02
CP: NE Solo Pro 180 3D .. Esky Belt CP 450 .. Esky Belt CPv2 450
CP: MSH Protos 500 .. MSH Protos 500 Airwolf Fuse
CP: JR Venture .30 Gasser
Quad: QR Ladybird V2 (x2) .. Turnigy SK450 .. AR Drone V1
Plank: Bixler v2

Offline GaryX1001

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Re: Big Heli component recommendations
« Reply #12 on: March 17, 2018, 06:29:30 AM »
well, that Thing with quick take off is the Thing i don't always like to do. seems like that is one Thing i don't like on FBL then.

i usually program my helis that way:

throttle curve: 0 - ~80% Midstick
pitch curve: -2 - 0

used to power up the heli and after landing to power down


Flight mode:

Linear throttle curve
pitch -12 - +12


i have not tested how my 550 FB trex behaves when i use cyclic with 0 pitch on the ground, will test that once i am on the field.

Offline GaryX1001

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Re: Big Heli component recommendations
« Reply #13 on: April 07, 2018, 03:54:50 PM »
so i started the build, i have already build the main Frame and tail, installed the servos but have nothing more.

there are F3C and 3D rotor holder arms and i will go with the F3C holders, which should double the flight stability says the Manual.

this Thing is really big, i will use 2x 6s 5200mah batteries.

Offline Rumblecloud

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Re: Big Heli component recommendations
« Reply #14 on: April 08, 2018, 07:58:14 AM »
I cannot wait to see it.
you will have to plate one of you 500s next to it for comparison. :t2030:

 

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